Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (49 commits)
[GFS2] fix assertion in log_refund()
[GFS2] fix GFP_KERNEL misuses
[GFS2] test for IS_ERR rather than 0
[GFS2] Invalidate cache at correct point
[GFS2] fs/gfs2/recovery.c: suppress warnings
[GFS2] Faster gfs2_bitfit algorithm
[GFS2] Streamline quota lock/check for no-quota case
[GFS2] Remove drop of module ref where not needed
[GFS2] gfs2_adjust_quota has broken unstuffing code
[GFS2] possible null pointer dereference fixup
[GFS2] Need to ensure that sector_t is 64bits for GFS2
[GFS2] re-support special inode
[GFS2] remove gfs2_dev_iops
[GFS2] fix file_system_type leak on gfs2meta mount
[GFS2] Allow bmap to allocate extents
[GFS2] Fix a page lock / glock deadlock
[GFS2] proper extern for gfs2/locking/dlm/mount.c:gdlm_ops
[GFS2] gfs2/ops_file.c should #include "ops_inode.h"
[GFS2] be*_add_cpu conversion
[GFS2] Fix bug where we called drop_bh incorrectly
...
diff --git a/fs/gfs2/Kconfig b/fs/gfs2/Kconfig
index de8e64c..7f7947e 100644
--- a/fs/gfs2/Kconfig
+++ b/fs/gfs2/Kconfig
@@ -1,6 +1,6 @@
config GFS2_FS
tristate "GFS2 file system support"
- depends on EXPERIMENTAL
+ depends on EXPERIMENTAL && (64BIT || (LSF && LBD))
select FS_POSIX_ACL
select CRC32
help
diff --git a/fs/gfs2/Makefile b/fs/gfs2/Makefile
index 8fff110..e2350df 100644
--- a/fs/gfs2/Makefile
+++ b/fs/gfs2/Makefile
@@ -1,6 +1,6 @@
obj-$(CONFIG_GFS2_FS) += gfs2.o
gfs2-y := acl.o bmap.o daemon.o dir.o eaops.o eattr.o glock.o \
- glops.o inode.o lm.o log.o lops.o locking.o main.o meta_io.o \
+ glops.o inode.o log.o lops.o locking.o main.o meta_io.o \
mount.o ops_address.o ops_dentry.o ops_export.o ops_file.o \
ops_fstype.o ops_inode.o ops_super.o quota.o \
recovery.o rgrp.o super.o sys.o trans.o util.o
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index 1047a8c..3e9bd46 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -116,7 +116,7 @@
goto out;
er.er_data_len = GFS2_EA_DATA_LEN(el->el_ea);
- er.er_data = kmalloc(er.er_data_len, GFP_KERNEL);
+ er.er_data = kmalloc(er.er_data_len, GFP_NOFS);
error = -ENOMEM;
if (!er.er_data)
goto out;
@@ -222,7 +222,7 @@
return error;
}
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ clone = posix_acl_clone(acl, GFP_NOFS);
error = -ENOMEM;
if (!clone)
goto out;
@@ -272,7 +272,7 @@
if (!acl)
return gfs2_setattr_simple(ip, attr);
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ clone = posix_acl_clone(acl, GFP_NOFS);
error = -ENOMEM;
if (!clone)
goto out;
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index e9456eb..c19184f 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -33,6 +33,7 @@
* keep it small.
*/
struct metapath {
+ struct buffer_head *mp_bh[GFS2_MAX_META_HEIGHT];
__u16 mp_list[GFS2_MAX_META_HEIGHT];
};
@@ -135,9 +136,10 @@
/* Get a free block, fill it with the stuffed data,
and write it out to disk */
+ unsigned int n = 1;
+ block = gfs2_alloc_block(ip, &n);
if (isdir) {
- block = gfs2_alloc_meta(ip);
-
+ gfs2_trans_add_unrevoke(GFS2_SB(&ip->i_inode), block, 1);
error = gfs2_dir_get_new_buffer(ip, block, &bh);
if (error)
goto out_brelse;
@@ -145,8 +147,6 @@
dibh, sizeof(struct gfs2_dinode));
brelse(bh);
} else {
- block = gfs2_alloc_data(ip);
-
error = gfs2_unstuffer_page(ip, dibh, block, page);
if (error)
goto out_brelse;
@@ -161,12 +161,11 @@
if (ip->i_di.di_size) {
*(__be64 *)(di + 1) = cpu_to_be64(block);
- ip->i_di.di_blocks++;
- gfs2_set_inode_blocks(&ip->i_inode);
- di->di_blocks = cpu_to_be64(ip->i_di.di_blocks);
+ gfs2_add_inode_blocks(&ip->i_inode, 1);
+ di->di_blocks = cpu_to_be64(gfs2_get_inode_blocks(&ip->i_inode));
}
- ip->i_di.di_height = 1;
+ ip->i_height = 1;
di->di_height = cpu_to_be16(1);
out_brelse:
@@ -176,114 +175,13 @@
return error;
}
-/**
- * calc_tree_height - Calculate the height of a metadata tree
- * @ip: The GFS2 inode
- * @size: The proposed size of the file
- *
- * Work out how tall a metadata tree needs to be in order to accommodate a
- * file of a particular size. If size is less than the current size of
- * the inode, then the current size of the inode is used instead of the
- * supplied one.
- *
- * Returns: the height the tree should be
- */
-
-static unsigned int calc_tree_height(struct gfs2_inode *ip, u64 size)
-{
- struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
- u64 *arr;
- unsigned int max, height;
-
- if (ip->i_di.di_size > size)
- size = ip->i_di.di_size;
-
- if (gfs2_is_dir(ip)) {
- arr = sdp->sd_jheightsize;
- max = sdp->sd_max_jheight;
- } else {
- arr = sdp->sd_heightsize;
- max = sdp->sd_max_height;
- }
-
- for (height = 0; height < max; height++)
- if (arr[height] >= size)
- break;
-
- return height;
-}
-
-/**
- * build_height - Build a metadata tree of the requested height
- * @ip: The GFS2 inode
- * @height: The height to build to
- *
- *
- * Returns: errno
- */
-
-static int build_height(struct inode *inode, unsigned height)
-{
- struct gfs2_inode *ip = GFS2_I(inode);
- unsigned new_height = height - ip->i_di.di_height;
- struct buffer_head *dibh;
- struct buffer_head *blocks[GFS2_MAX_META_HEIGHT];
- struct gfs2_dinode *di;
- int error;
- __be64 *bp;
- u64 bn;
- unsigned n;
-
- if (height <= ip->i_di.di_height)
- return 0;
-
- error = gfs2_meta_inode_buffer(ip, &dibh);
- if (error)
- return error;
-
- for(n = 0; n < new_height; n++) {
- bn = gfs2_alloc_meta(ip);
- blocks[n] = gfs2_meta_new(ip->i_gl, bn);
- gfs2_trans_add_bh(ip->i_gl, blocks[n], 1);
- }
-
- n = 0;
- bn = blocks[0]->b_blocknr;
- if (new_height > 1) {
- for(; n < new_height-1; n++) {
- gfs2_metatype_set(blocks[n], GFS2_METATYPE_IN,
- GFS2_FORMAT_IN);
- gfs2_buffer_clear_tail(blocks[n],
- sizeof(struct gfs2_meta_header));
- bp = (__be64 *)(blocks[n]->b_data +
- sizeof(struct gfs2_meta_header));
- *bp = cpu_to_be64(blocks[n+1]->b_blocknr);
- brelse(blocks[n]);
- blocks[n] = NULL;
- }
- }
- gfs2_metatype_set(blocks[n], GFS2_METATYPE_IN, GFS2_FORMAT_IN);
- gfs2_buffer_copy_tail(blocks[n], sizeof(struct gfs2_meta_header),
- dibh, sizeof(struct gfs2_dinode));
- brelse(blocks[n]);
- gfs2_trans_add_bh(ip->i_gl, dibh, 1);
- di = (struct gfs2_dinode *)dibh->b_data;
- gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
- *(__be64 *)(di + 1) = cpu_to_be64(bn);
- ip->i_di.di_height += new_height;
- ip->i_di.di_blocks += new_height;
- gfs2_set_inode_blocks(&ip->i_inode);
- di->di_height = cpu_to_be16(ip->i_di.di_height);
- di->di_blocks = cpu_to_be64(ip->i_di.di_blocks);
- brelse(dibh);
- return error;
-}
/**
* find_metapath - Find path through the metadata tree
- * @ip: The inode pointer
+ * @sdp: The superblock
* @mp: The metapath to return the result in
* @block: The disk block to look up
+ * @height: The pre-calculated height of the metadata tree
*
* This routine returns a struct metapath structure that defines a path
* through the metadata of inode "ip" to get to block "block".
@@ -338,21 +236,29 @@
*
*/
-static void find_metapath(struct gfs2_inode *ip, u64 block,
- struct metapath *mp)
+static void find_metapath(const struct gfs2_sbd *sdp, u64 block,
+ struct metapath *mp, unsigned int height)
{
- struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
- u64 b = block;
unsigned int i;
- for (i = ip->i_di.di_height; i--;)
- mp->mp_list[i] = do_div(b, sdp->sd_inptrs);
+ for (i = height; i--;)
+ mp->mp_list[i] = do_div(block, sdp->sd_inptrs);
}
+static inline unsigned int zero_metapath_length(const struct metapath *mp,
+ unsigned height)
+{
+ unsigned int i;
+ for (i = 0; i < height - 1; i++) {
+ if (mp->mp_list[i] != 0)
+ return i;
+ }
+ return height;
+}
+
/**
* metapointer - Return pointer to start of metadata in a buffer
- * @bh: The buffer
* @height: The metadata height (0 = dinode)
* @mp: The metapath
*
@@ -361,93 +267,302 @@
* metadata tree.
*/
-static inline __be64 *metapointer(struct buffer_head *bh, int *boundary,
- unsigned int height, const struct metapath *mp)
+static inline __be64 *metapointer(unsigned int height, const struct metapath *mp)
{
+ struct buffer_head *bh = mp->mp_bh[height];
unsigned int head_size = (height > 0) ?
sizeof(struct gfs2_meta_header) : sizeof(struct gfs2_dinode);
- __be64 *ptr;
- *boundary = 0;
- ptr = ((__be64 *)(bh->b_data + head_size)) + mp->mp_list[height];
- if (ptr + 1 == (__be64 *)(bh->b_data + bh->b_size))
- *boundary = 1;
- return ptr;
+ return ((__be64 *)(bh->b_data + head_size)) + mp->mp_list[height];
}
/**
- * lookup_block - Get the next metadata block in metadata tree
- * @ip: The GFS2 inode
- * @bh: Buffer containing the pointers to metadata blocks
- * @height: The height of the tree (0 = dinode)
+ * lookup_metapath - Walk the metadata tree to a specific point
+ * @ip: The inode
* @mp: The metapath
- * @create: Non-zero if we may create a new meatdata block
- * @new: Used to indicate if we did create a new metadata block
- * @block: the returned disk block number
*
- * Given a metatree, complete to a particular height, checks to see if the next
- * height of the tree exists. If not the next height of the tree is created.
- * The block number of the next height of the metadata tree is returned.
+ * Assumes that the inode's buffer has already been looked up and
+ * hooked onto mp->mp_bh[0] and that the metapath has been initialised
+ * by find_metapath().
*
+ * If this function encounters part of the tree which has not been
+ * allocated, it returns the current height of the tree at the point
+ * at which it found the unallocated block. Blocks which are found are
+ * added to the mp->mp_bh[] list.
+ *
+ * Returns: error or height of metadata tree
*/
-static int lookup_block(struct gfs2_inode *ip, struct buffer_head *bh,
- unsigned int height, struct metapath *mp, int create,
- int *new, u64 *block)
+static int lookup_metapath(struct gfs2_inode *ip, struct metapath *mp)
{
- int boundary;
- __be64 *ptr = metapointer(bh, &boundary, height, mp);
+ unsigned int end_of_metadata = ip->i_height - 1;
+ unsigned int x;
+ __be64 *ptr;
+ u64 dblock;
+ int ret;
- if (*ptr) {
- *block = be64_to_cpu(*ptr);
- return boundary;
+ for (x = 0; x < end_of_metadata; x++) {
+ ptr = metapointer(x, mp);
+ dblock = be64_to_cpu(*ptr);
+ if (!dblock)
+ return x + 1;
+
+ ret = gfs2_meta_indirect_buffer(ip, x+1, dblock, 0, &mp->mp_bh[x+1]);
+ if (ret)
+ return ret;
}
- *block = 0;
-
- if (!create)
- return 0;
-
- if (height == ip->i_di.di_height - 1 && !gfs2_is_dir(ip))
- *block = gfs2_alloc_data(ip);
- else
- *block = gfs2_alloc_meta(ip);
-
- gfs2_trans_add_bh(ip->i_gl, bh, 1);
-
- *ptr = cpu_to_be64(*block);
- ip->i_di.di_blocks++;
- gfs2_set_inode_blocks(&ip->i_inode);
-
- *new = 1;
- return 0;
+ return ip->i_height;
}
-static inline void bmap_lock(struct inode *inode, int create)
+static inline void release_metapath(struct metapath *mp)
{
- struct gfs2_inode *ip = GFS2_I(inode);
+ int i;
+
+ for (i = 0; i < GFS2_MAX_META_HEIGHT; i++) {
+ if (mp->mp_bh[i] == NULL)
+ break;
+ brelse(mp->mp_bh[i]);
+ }
+}
+
+/**
+ * gfs2_extent_length - Returns length of an extent of blocks
+ * @start: Start of the buffer
+ * @len: Length of the buffer in bytes
+ * @ptr: Current position in the buffer
+ * @limit: Max extent length to return (0 = unlimited)
+ * @eob: Set to 1 if we hit "end of block"
+ *
+ * If the first block is zero (unallocated) it will return the number of
+ * unallocated blocks in the extent, otherwise it will return the number
+ * of contiguous blocks in the extent.
+ *
+ * Returns: The length of the extent (minimum of one block)
+ */
+
+static inline unsigned int gfs2_extent_length(void *start, unsigned int len, __be64 *ptr, unsigned limit, int *eob)
+{
+ const __be64 *end = (start + len);
+ const __be64 *first = ptr;
+ u64 d = be64_to_cpu(*ptr);
+
+ *eob = 0;
+ do {
+ ptr++;
+ if (ptr >= end)
+ break;
+ if (limit && --limit == 0)
+ break;
+ if (d)
+ d++;
+ } while(be64_to_cpu(*ptr) == d);
+ if (ptr >= end)
+ *eob = 1;
+ return (ptr - first);
+}
+
+static inline void bmap_lock(struct gfs2_inode *ip, int create)
+{
if (create)
down_write(&ip->i_rw_mutex);
else
down_read(&ip->i_rw_mutex);
}
-static inline void bmap_unlock(struct inode *inode, int create)
+static inline void bmap_unlock(struct gfs2_inode *ip, int create)
{
- struct gfs2_inode *ip = GFS2_I(inode);
if (create)
up_write(&ip->i_rw_mutex);
else
up_read(&ip->i_rw_mutex);
}
+static inline __be64 *gfs2_indirect_init(struct metapath *mp,
+ struct gfs2_glock *gl, unsigned int i,
+ unsigned offset, u64 bn)
+{
+ __be64 *ptr = (__be64 *)(mp->mp_bh[i - 1]->b_data +
+ ((i > 1) ? sizeof(struct gfs2_meta_header) :
+ sizeof(struct gfs2_dinode)));
+ BUG_ON(i < 1);
+ BUG_ON(mp->mp_bh[i] != NULL);
+ mp->mp_bh[i] = gfs2_meta_new(gl, bn);
+ gfs2_trans_add_bh(gl, mp->mp_bh[i], 1);
+ gfs2_metatype_set(mp->mp_bh[i], GFS2_METATYPE_IN, GFS2_FORMAT_IN);
+ gfs2_buffer_clear_tail(mp->mp_bh[i], sizeof(struct gfs2_meta_header));
+ ptr += offset;
+ *ptr = cpu_to_be64(bn);
+ return ptr;
+}
+
+enum alloc_state {
+ ALLOC_DATA = 0,
+ ALLOC_GROW_DEPTH = 1,
+ ALLOC_GROW_HEIGHT = 2,
+ /* ALLOC_UNSTUFF = 3, TBD and rather complicated */
+};
+
+/**
+ * gfs2_bmap_alloc - Build a metadata tree of the requested height
+ * @inode: The GFS2 inode
+ * @lblock: The logical starting block of the extent
+ * @bh_map: This is used to return the mapping details
+ * @mp: The metapath
+ * @sheight: The starting height (i.e. whats already mapped)
+ * @height: The height to build to
+ * @maxlen: The max number of data blocks to alloc
+ *
+ * In this routine we may have to alloc:
+ * i) Indirect blocks to grow the metadata tree height
+ * ii) Indirect blocks to fill in lower part of the metadata tree
+ * iii) Data blocks
+ *
+ * The function is in two parts. The first part works out the total
+ * number of blocks which we need. The second part does the actual
+ * allocation asking for an extent at a time (if enough contiguous free
+ * blocks are available, there will only be one request per bmap call)
+ * and uses the state machine to initialise the blocks in order.
+ *
+ * Returns: errno on error
+ */
+
+static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
+ struct buffer_head *bh_map, struct metapath *mp,
+ const unsigned int sheight,
+ const unsigned int height,
+ const unsigned int maxlen)
+{
+ struct gfs2_inode *ip = GFS2_I(inode);
+ struct gfs2_sbd *sdp = GFS2_SB(inode);
+ struct buffer_head *dibh = mp->mp_bh[0];
+ u64 bn, dblock = 0;
+ unsigned n, i, blks, alloced = 0, iblks = 0, zmpl = 0;
+ unsigned dblks = 0;
+ unsigned ptrs_per_blk;
+ const unsigned end_of_metadata = height - 1;
+ int eob = 0;
+ enum alloc_state state;
+ __be64 *ptr;
+ __be64 zero_bn = 0;
+
+ BUG_ON(sheight < 1);
+ BUG_ON(dibh == NULL);
+
+ gfs2_trans_add_bh(ip->i_gl, dibh, 1);
+
+ if (height == sheight) {
+ struct buffer_head *bh;
+ /* Bottom indirect block exists, find unalloced extent size */
+ ptr = metapointer(end_of_metadata, mp);
+ bh = mp->mp_bh[end_of_metadata];
+ dblks = gfs2_extent_length(bh->b_data, bh->b_size, ptr, maxlen,
+ &eob);
+ BUG_ON(dblks < 1);
+ state = ALLOC_DATA;
+ } else {
+ /* Need to allocate indirect blocks */
+ ptrs_per_blk = height > 1 ? sdp->sd_inptrs : sdp->sd_diptrs;
+ dblks = min(maxlen, ptrs_per_blk - mp->mp_list[end_of_metadata]);
+ if (height == ip->i_height) {
+ /* Writing into existing tree, extend tree down */
+ iblks = height - sheight;
+ state = ALLOC_GROW_DEPTH;
+ } else {
+ /* Building up tree height */
+ state = ALLOC_GROW_HEIGHT;
+ iblks = height - ip->i_height;
+ zmpl = zero_metapath_length(mp, height);
+ iblks -= zmpl;
+ iblks += height;
+ }
+ }
+
+ /* start of the second part of the function (state machine) */
+
+ blks = dblks + iblks;
+ i = sheight;
+ do {
+ n = blks - alloced;
+ bn = gfs2_alloc_block(ip, &n);
+ alloced += n;
+ if (state != ALLOC_DATA || gfs2_is_jdata(ip))
+ gfs2_trans_add_unrevoke(sdp, bn, n);
+ switch (state) {
+ /* Growing height of tree */
+ case ALLOC_GROW_HEIGHT:
+ if (i == 1) {
+ ptr = (__be64 *)(dibh->b_data +
+ sizeof(struct gfs2_dinode));
+ zero_bn = *ptr;
+ }
+ for (; i - 1 < height - ip->i_height && n > 0; i++, n--)
+ gfs2_indirect_init(mp, ip->i_gl, i, 0, bn++);
+ if (i - 1 == height - ip->i_height) {
+ i--;
+ gfs2_buffer_copy_tail(mp->mp_bh[i],
+ sizeof(struct gfs2_meta_header),
+ dibh, sizeof(struct gfs2_dinode));
+ gfs2_buffer_clear_tail(dibh,
+ sizeof(struct gfs2_dinode) +
+ sizeof(__be64));
+ ptr = (__be64 *)(mp->mp_bh[i]->b_data +
+ sizeof(struct gfs2_meta_header));
+ *ptr = zero_bn;
+ state = ALLOC_GROW_DEPTH;
+ for(i = zmpl; i < height; i++) {
+ if (mp->mp_bh[i] == NULL)
+ break;
+ brelse(mp->mp_bh[i]);
+ mp->mp_bh[i] = NULL;
+ }
+ i = zmpl;
+ }
+ if (n == 0)
+ break;
+ /* Branching from existing tree */
+ case ALLOC_GROW_DEPTH:
+ if (i > 1 && i < height)
+ gfs2_trans_add_bh(ip->i_gl, mp->mp_bh[i-1], 1);
+ for (; i < height && n > 0; i++, n--)
+ gfs2_indirect_init(mp, ip->i_gl, i,
+ mp->mp_list[i-1], bn++);
+ if (i == height)
+ state = ALLOC_DATA;
+ if (n == 0)
+ break;
+ /* Tree complete, adding data blocks */
+ case ALLOC_DATA:
+ BUG_ON(n > dblks);
+ BUG_ON(mp->mp_bh[end_of_metadata] == NULL);
+ gfs2_trans_add_bh(ip->i_gl, mp->mp_bh[end_of_metadata], 1);
+ dblks = n;
+ ptr = metapointer(end_of_metadata, mp);
+ dblock = bn;
+ while (n-- > 0)
+ *ptr++ = cpu_to_be64(bn++);
+ break;
+ }
+ } while (state != ALLOC_DATA);
+
+ ip->i_height = height;
+ gfs2_add_inode_blocks(&ip->i_inode, alloced);
+ gfs2_dinode_out(ip, mp->mp_bh[0]->b_data);
+ map_bh(bh_map, inode->i_sb, dblock);
+ bh_map->b_size = dblks << inode->i_blkbits;
+ set_buffer_new(bh_map);
+ return 0;
+}
+
/**
* gfs2_block_map - Map a block from an inode to a disk block
* @inode: The inode
* @lblock: The logical block number
* @bh_map: The bh to be mapped
+ * @create: True if its ok to alloc blocks to satify the request
*
- * Find the block number on the current device which corresponds to an
- * inode's block. If the block had to be created, "new" will be set.
+ * Sets buffer_mapped() if successful, sets buffer_boundary() if a
+ * read of metadata will be required before the next block can be
+ * mapped. Sets buffer_new() if new blocks were allocated.
*
* Returns: errno
*/
@@ -457,97 +572,78 @@
{
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_sbd *sdp = GFS2_SB(inode);
- struct buffer_head *bh;
- unsigned int bsize;
- unsigned int height;
- unsigned int end_of_metadata;
- unsigned int x;
- int error = 0;
- int new = 0;
- u64 dblock = 0;
- int boundary;
- unsigned int maxlen = bh_map->b_size >> inode->i_blkbits;
- struct metapath mp;
+ unsigned int bsize = sdp->sd_sb.sb_bsize;
+ const unsigned int maxlen = bh_map->b_size >> inode->i_blkbits;
+ const u64 *arr = sdp->sd_heightsize;
+ __be64 *ptr;
u64 size;
- struct buffer_head *dibh = NULL;
+ struct metapath mp;
+ int ret;
+ int eob;
+ unsigned int len;
+ struct buffer_head *bh;
+ u8 height;
BUG_ON(maxlen == 0);
- if (gfs2_assert_warn(sdp, !gfs2_is_stuffed(ip)))
- return 0;
-
- bmap_lock(inode, create);
+ memset(mp.mp_bh, 0, sizeof(mp.mp_bh));
+ bmap_lock(ip, create);
clear_buffer_mapped(bh_map);
clear_buffer_new(bh_map);
clear_buffer_boundary(bh_map);
- bsize = gfs2_is_dir(ip) ? sdp->sd_jbsize : sdp->sd_sb.sb_bsize;
+ if (gfs2_is_dir(ip)) {
+ bsize = sdp->sd_jbsize;
+ arr = sdp->sd_jheightsize;
+ }
+
+ ret = gfs2_meta_inode_buffer(ip, &mp.mp_bh[0]);
+ if (ret)
+ goto out;
+
+ height = ip->i_height;
size = (lblock + 1) * bsize;
+ while (size > arr[height])
+ height++;
+ find_metapath(sdp, lblock, &mp, height);
+ ret = 1;
+ if (height > ip->i_height || gfs2_is_stuffed(ip))
+ goto do_alloc;
+ ret = lookup_metapath(ip, &mp);
+ if (ret < 0)
+ goto out;
+ if (ret != ip->i_height)
+ goto do_alloc;
+ ptr = metapointer(ip->i_height - 1, &mp);
+ if (*ptr == 0)
+ goto do_alloc;
+ map_bh(bh_map, inode->i_sb, be64_to_cpu(*ptr));
+ bh = mp.mp_bh[ip->i_height - 1];
+ len = gfs2_extent_length(bh->b_data, bh->b_size, ptr, maxlen, &eob);
+ bh_map->b_size = (len << inode->i_blkbits);
+ if (eob)
+ set_buffer_boundary(bh_map);
+ ret = 0;
+out:
+ release_metapath(&mp);
+ bmap_unlock(ip, create);
+ return ret;
- if (size > ip->i_di.di_size) {
- height = calc_tree_height(ip, size);
- if (ip->i_di.di_height < height) {
- if (!create)
- goto out_ok;
-
- error = build_height(inode, height);
- if (error)
- goto out_fail;
- }
+do_alloc:
+ /* All allocations are done here, firstly check create flag */
+ if (!create) {
+ BUG_ON(gfs2_is_stuffed(ip));
+ ret = 0;
+ goto out;
}
- find_metapath(ip, lblock, &mp);
- end_of_metadata = ip->i_di.di_height - 1;
- error = gfs2_meta_inode_buffer(ip, &bh);
- if (error)
- goto out_fail;
- dibh = bh;
- get_bh(dibh);
-
- for (x = 0; x < end_of_metadata; x++) {
- lookup_block(ip, bh, x, &mp, create, &new, &dblock);
- brelse(bh);
- if (!dblock)
- goto out_ok;
-
- error = gfs2_meta_indirect_buffer(ip, x+1, dblock, new, &bh);
- if (error)
- goto out_fail;
- }
-
- boundary = lookup_block(ip, bh, end_of_metadata, &mp, create, &new, &dblock);
- if (dblock) {
- map_bh(bh_map, inode->i_sb, dblock);
- if (boundary)
- set_buffer_boundary(bh_map);
- if (new) {
- gfs2_trans_add_bh(ip->i_gl, dibh, 1);
- gfs2_dinode_out(ip, dibh->b_data);
- set_buffer_new(bh_map);
- goto out_brelse;
- }
- while(--maxlen && !buffer_boundary(bh_map)) {
- u64 eblock;
-
- mp.mp_list[end_of_metadata]++;
- boundary = lookup_block(ip, bh, end_of_metadata, &mp, 0, &new, &eblock);
- if (eblock != ++dblock)
- break;
- bh_map->b_size += (1 << inode->i_blkbits);
- if (boundary)
- set_buffer_boundary(bh_map);
- }
- }
-out_brelse:
- brelse(bh);
-out_ok:
- error = 0;
-out_fail:
- if (dibh)
- brelse(dibh);
- bmap_unlock(inode, create);
- return error;
+ /* At this point ret is the tree depth of already allocated blocks */
+ ret = gfs2_bmap_alloc(inode, lblock, bh_map, &mp, ret, height, maxlen);
+ goto out;
}
+/*
+ * Deprecated: do not use in new code
+ */
int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsigned *extlen)
{
struct buffer_head bh = { .b_state = 0, .b_blocknr = 0 };
@@ -558,7 +654,7 @@
BUG_ON(!dblock);
BUG_ON(!new);
- bh.b_size = 1 << (inode->i_blkbits + 5);
+ bh.b_size = 1 << (inode->i_blkbits + (create ? 0 : 5));
ret = gfs2_block_map(inode, lblock, &bh, create);
*extlen = bh.b_size >> inode->i_blkbits;
*dblock = bh.b_blocknr;
@@ -621,7 +717,7 @@
if (error)
goto out;
- if (height < ip->i_di.di_height - 1)
+ if (height < ip->i_height - 1)
for (; top < bottom; top++, first = 0) {
if (!*top)
continue;
@@ -679,7 +775,7 @@
sm->sm_first = 0;
}
- metadata = (height != ip->i_di.di_height - 1);
+ metadata = (height != ip->i_height - 1);
if (metadata)
revokes = (height) ? sdp->sd_inptrs : sdp->sd_diptrs;
@@ -713,7 +809,7 @@
else
goto out; /* Nothing to do */
- gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE, 0);
+ gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE);
for (x = 0; x < rlist.rl_rgrps; x++) {
struct gfs2_rgrpd *rgd;
@@ -760,10 +856,7 @@
}
*p = 0;
- if (!ip->i_di.di_blocks)
- gfs2_consist_inode(ip);
- ip->i_di.di_blocks--;
- gfs2_set_inode_blocks(&ip->i_inode);
+ gfs2_add_inode_blocks(&ip->i_inode, -1);
}
if (bstart) {
if (metadata)
@@ -804,19 +897,16 @@
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct gfs2_alloc *al;
struct buffer_head *dibh;
- unsigned int h;
int error;
al = gfs2_alloc_get(ip);
+ if (!al)
+ return -ENOMEM;
- error = gfs2_quota_lock(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
+ error = gfs2_quota_lock_check(ip);
if (error)
goto out;
- error = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid);
- if (error)
- goto out_gunlock_q;
-
al->al_requested = sdp->sd_max_height + RES_DATA;
error = gfs2_inplace_reserve(ip);
@@ -829,34 +919,25 @@
if (error)
goto out_ipres;
+ error = gfs2_meta_inode_buffer(ip, &dibh);
+ if (error)
+ goto out_end_trans;
+
if (size > sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode)) {
if (gfs2_is_stuffed(ip)) {
error = gfs2_unstuff_dinode(ip, NULL);
if (error)
- goto out_end_trans;
- }
-
- h = calc_tree_height(ip, size);
- if (ip->i_di.di_height < h) {
- down_write(&ip->i_rw_mutex);
- error = build_height(&ip->i_inode, h);
- up_write(&ip->i_rw_mutex);
- if (error)
- goto out_end_trans;
+ goto out_brelse;
}
}
ip->i_di.di_size = size;
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
-
- error = gfs2_meta_inode_buffer(ip, &dibh);
- if (error)
- goto out_end_trans;
-
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
- brelse(dibh);
+out_brelse:
+ brelse(dibh);
out_end_trans:
gfs2_trans_end(sdp);
out_ipres:
@@ -986,7 +1067,8 @@
static int trunc_dealloc(struct gfs2_inode *ip, u64 size)
{
- unsigned int height = ip->i_di.di_height;
+ struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+ unsigned int height = ip->i_height;
u64 lblock;
struct metapath mp;
int error;
@@ -994,10 +1076,11 @@
if (!size)
lblock = 0;
else
- lblock = (size - 1) >> GFS2_SB(&ip->i_inode)->sd_sb.sb_bsize_shift;
+ lblock = (size - 1) >> sdp->sd_sb.sb_bsize_shift;
- find_metapath(ip, lblock, &mp);
- gfs2_alloc_get(ip);
+ find_metapath(sdp, lblock, &mp, ip->i_height);
+ if (!gfs2_alloc_get(ip))
+ return -ENOMEM;
error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
if (error)
@@ -1037,10 +1120,8 @@
goto out;
if (!ip->i_di.di_size) {
- ip->i_di.di_height = 0;
- ip->i_di.di_goal_meta =
- ip->i_di.di_goal_data =
- ip->i_no_addr;
+ ip->i_height = 0;
+ ip->i_goal = ip->i_no_addr;
gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
}
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
@@ -1197,10 +1278,9 @@
unsigned int len, int *alloc_required)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
- u64 lblock, lblock_stop, dblock;
- u32 extlen;
- int new = 0;
- int error = 0;
+ struct buffer_head bh;
+ unsigned int shift;
+ u64 lblock, lblock_stop, size;
*alloc_required = 0;
@@ -1214,6 +1294,8 @@
return 0;
}
+ *alloc_required = 1;
+ shift = sdp->sd_sb.sb_bsize_shift;
if (gfs2_is_dir(ip)) {
unsigned int bsize = sdp->sd_jbsize;
lblock = offset;
@@ -1221,27 +1303,25 @@
lblock_stop = offset + len + bsize - 1;
do_div(lblock_stop, bsize);
} else {
- unsigned int shift = sdp->sd_sb.sb_bsize_shift;
u64 end_of_file = (ip->i_di.di_size + sdp->sd_sb.sb_bsize - 1) >> shift;
lblock = offset >> shift;
lblock_stop = (offset + len + sdp->sd_sb.sb_bsize - 1) >> shift;
- if (lblock_stop > end_of_file) {
- *alloc_required = 1;
+ if (lblock_stop > end_of_file)
return 0;
- }
}
- for (; lblock < lblock_stop; lblock += extlen) {
- error = gfs2_extent_map(&ip->i_inode, lblock, &new, &dblock, &extlen);
- if (error)
- return error;
-
- if (!dblock) {
- *alloc_required = 1;
+ size = (lblock_stop - lblock) << shift;
+ do {
+ bh.b_state = 0;
+ bh.b_size = size;
+ gfs2_block_map(&ip->i_inode, lblock, &bh, 0);
+ if (!buffer_mapped(&bh))
return 0;
- }
- }
+ size -= bh.b_size;
+ lblock += (bh.b_size >> ip->i_inode.i_blkbits);
+ } while(size > 0);
+ *alloc_required = 0;
return 0;
}
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index c347095..eed040d 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -159,6 +159,7 @@
unsigned int o;
int copied = 0;
int error = 0;
+ int new = 0;
if (!size)
return 0;
@@ -183,7 +184,6 @@
while (copied < size) {
unsigned int amount;
struct buffer_head *bh;
- int new = 0;
amount = size - copied;
if (amount > sdp->sd_sb.sb_bsize - o)
@@ -757,7 +757,7 @@
if (ip->i_di.di_flags & GFS2_DIF_EXHASH) {
struct gfs2_leaf *leaf;
- unsigned hsize = 1 << ip->i_di.di_depth;
+ unsigned hsize = 1 << ip->i_depth;
unsigned index;
u64 ln;
if (hsize * sizeof(u64) != ip->i_di.di_size) {
@@ -765,7 +765,7 @@
return ERR_PTR(-EIO);
}
- index = name->hash >> (32 - ip->i_di.di_depth);
+ index = name->hash >> (32 - ip->i_depth);
error = get_first_leaf(ip, index, &bh);
if (error)
return ERR_PTR(error);
@@ -803,14 +803,15 @@
static struct gfs2_leaf *new_leaf(struct inode *inode, struct buffer_head **pbh, u16 depth)
{
struct gfs2_inode *ip = GFS2_I(inode);
- u64 bn = gfs2_alloc_meta(ip);
+ unsigned int n = 1;
+ u64 bn = gfs2_alloc_block(ip, &n);
struct buffer_head *bh = gfs2_meta_new(ip->i_gl, bn);
struct gfs2_leaf *leaf;
struct gfs2_dirent *dent;
struct qstr name = { .name = "", .len = 0, .hash = 0 };
if (!bh)
return NULL;
-
+ gfs2_trans_add_unrevoke(GFS2_SB(inode), bn, 1);
gfs2_trans_add_bh(ip->i_gl, bh, 1);
gfs2_metatype_set(bh, GFS2_METATYPE_LF, GFS2_FORMAT_LF);
leaf = (struct gfs2_leaf *)bh->b_data;
@@ -905,12 +906,11 @@
*lp = cpu_to_be64(bn);
dip->i_di.di_size = sdp->sd_sb.sb_bsize / 2;
- dip->i_di.di_blocks++;
- gfs2_set_inode_blocks(&dip->i_inode);
+ gfs2_add_inode_blocks(&dip->i_inode, 1);
dip->i_di.di_flags |= GFS2_DIF_EXHASH;
for (x = sdp->sd_hash_ptrs, y = -1; x; x >>= 1, y++) ;
- dip->i_di.di_depth = y;
+ dip->i_depth = y;
gfs2_dinode_out(dip, dibh->b_data);
@@ -941,7 +941,7 @@
int x, moved = 0;
int error;
- index = name->hash >> (32 - dip->i_di.di_depth);
+ index = name->hash >> (32 - dip->i_depth);
error = get_leaf_nr(dip, index, &leaf_no);
if (error)
return error;
@@ -952,7 +952,7 @@
return error;
oleaf = (struct gfs2_leaf *)obh->b_data;
- if (dip->i_di.di_depth == be16_to_cpu(oleaf->lf_depth)) {
+ if (dip->i_depth == be16_to_cpu(oleaf->lf_depth)) {
brelse(obh);
return 1; /* can't split */
}
@@ -967,10 +967,10 @@
bn = nbh->b_blocknr;
/* Compute the start and len of leaf pointers in the hash table. */
- len = 1 << (dip->i_di.di_depth - be16_to_cpu(oleaf->lf_depth));
+ len = 1 << (dip->i_depth - be16_to_cpu(oleaf->lf_depth));
half_len = len >> 1;
if (!half_len) {
- printk(KERN_WARNING "di_depth %u lf_depth %u index %u\n", dip->i_di.di_depth, be16_to_cpu(oleaf->lf_depth), index);
+ printk(KERN_WARNING "i_depth %u lf_depth %u index %u\n", dip->i_depth, be16_to_cpu(oleaf->lf_depth), index);
gfs2_consist_inode(dip);
error = -EIO;
goto fail_brelse;
@@ -997,7 +997,7 @@
kfree(lp);
/* Compute the divider */
- divider = (start + half_len) << (32 - dip->i_di.di_depth);
+ divider = (start + half_len) << (32 - dip->i_depth);
/* Copy the entries */
dirent_first(dip, obh, &dent);
@@ -1021,13 +1021,13 @@
new->de_inum = dent->de_inum; /* No endian worries */
new->de_type = dent->de_type; /* No endian worries */
- nleaf->lf_entries = cpu_to_be16(be16_to_cpu(nleaf->lf_entries)+1);
+ be16_add_cpu(&nleaf->lf_entries, 1);
dirent_del(dip, obh, prev, dent);
if (!oleaf->lf_entries)
gfs2_consist_inode(dip);
- oleaf->lf_entries = cpu_to_be16(be16_to_cpu(oleaf->lf_entries)-1);
+ be16_add_cpu(&oleaf->lf_entries, -1);
if (!prev)
prev = dent;
@@ -1044,8 +1044,7 @@
error = gfs2_meta_inode_buffer(dip, &dibh);
if (!gfs2_assert_withdraw(GFS2_SB(&dip->i_inode), !error)) {
gfs2_trans_add_bh(dip->i_gl, dibh, 1);
- dip->i_di.di_blocks++;
- gfs2_set_inode_blocks(&dip->i_inode);
+ gfs2_add_inode_blocks(&dip->i_inode, 1);
gfs2_dinode_out(dip, dibh->b_data);
brelse(dibh);
}
@@ -1082,7 +1081,7 @@
int x;
int error = 0;
- hsize = 1 << dip->i_di.di_depth;
+ hsize = 1 << dip->i_depth;
if (hsize * sizeof(u64) != dip->i_di.di_size) {
gfs2_consist_inode(dip);
return -EIO;
@@ -1090,7 +1089,7 @@
/* Allocate both the "from" and "to" buffers in one big chunk */
- buf = kcalloc(3, sdp->sd_hash_bsize, GFP_KERNEL | __GFP_NOFAIL);
+ buf = kcalloc(3, sdp->sd_hash_bsize, GFP_NOFS | __GFP_NOFAIL);
for (block = dip->i_di.di_size >> sdp->sd_hash_bsize_shift; block--;) {
error = gfs2_dir_read_data(dip, (char *)buf,
@@ -1125,7 +1124,7 @@
error = gfs2_meta_inode_buffer(dip, &dibh);
if (!gfs2_assert_withdraw(sdp, !error)) {
- dip->i_di.di_depth++;
+ dip->i_depth++;
gfs2_dinode_out(dip, dibh->b_data);
brelse(dibh);
}
@@ -1370,16 +1369,16 @@
int error = 0;
unsigned depth = 0;
- hsize = 1 << dip->i_di.di_depth;
+ hsize = 1 << dip->i_depth;
if (hsize * sizeof(u64) != dip->i_di.di_size) {
gfs2_consist_inode(dip);
return -EIO;
}
hash = gfs2_dir_offset2hash(*offset);
- index = hash >> (32 - dip->i_di.di_depth);
+ index = hash >> (32 - dip->i_depth);
- lp = kmalloc(sdp->sd_hash_bsize, GFP_KERNEL);
+ lp = kmalloc(sdp->sd_hash_bsize, GFP_NOFS);
if (!lp)
return -ENOMEM;
@@ -1405,7 +1404,7 @@
if (error)
break;
- len = 1 << (dip->i_di.di_depth - depth);
+ len = 1 << (dip->i_depth - depth);
index = (index & ~(len - 1)) + len;
}
@@ -1444,7 +1443,7 @@
error = -ENOMEM;
/* 96 is max number of dirents which can be stuffed into an inode */
- darr = kmalloc(96 * sizeof(struct gfs2_dirent *), GFP_KERNEL);
+ darr = kmalloc(96 * sizeof(struct gfs2_dirent *), GFP_NOFS);
if (darr) {
g.pdent = darr;
g.offset = 0;
@@ -1549,7 +1548,7 @@
u32 index;
u64 bn;
- index = name->hash >> (32 - ip->i_di.di_depth);
+ index = name->hash >> (32 - ip->i_depth);
error = get_first_leaf(ip, index, &obh);
if (error)
return error;
@@ -1579,8 +1578,7 @@
if (error)
return error;
gfs2_trans_add_bh(ip->i_gl, bh, 1);
- ip->i_di.di_blocks++;
- gfs2_set_inode_blocks(&ip->i_inode);
+ gfs2_add_inode_blocks(&ip->i_inode, 1);
gfs2_dinode_out(ip, bh->b_data);
brelse(bh);
return 0;
@@ -1616,7 +1614,7 @@
dent->de_type = cpu_to_be16(type);
if (ip->i_di.di_flags & GFS2_DIF_EXHASH) {
leaf = (struct gfs2_leaf *)bh->b_data;
- leaf->lf_entries = cpu_to_be16(be16_to_cpu(leaf->lf_entries) + 1);
+ be16_add_cpu(&leaf->lf_entries, 1);
}
brelse(bh);
error = gfs2_meta_inode_buffer(ip, &bh);
@@ -1641,7 +1639,7 @@
continue;
if (error < 0)
break;
- if (ip->i_di.di_depth < GFS2_DIR_MAX_DEPTH) {
+ if (ip->i_depth < GFS2_DIR_MAX_DEPTH) {
error = dir_double_exhash(ip);
if (error)
break;
@@ -1785,13 +1783,13 @@
u64 leaf_no;
int error = 0;
- hsize = 1 << dip->i_di.di_depth;
+ hsize = 1 << dip->i_depth;
if (hsize * sizeof(u64) != dip->i_di.di_size) {
gfs2_consist_inode(dip);
return -EIO;
}
- lp = kmalloc(sdp->sd_hash_bsize, GFP_KERNEL);
+ lp = kmalloc(sdp->sd_hash_bsize, GFP_NOFS);
if (!lp)
return -ENOMEM;
@@ -1817,7 +1815,7 @@
if (error)
goto out;
leaf = (struct gfs2_leaf *)bh->b_data;
- len = 1 << (dip->i_di.di_depth - be16_to_cpu(leaf->lf_depth));
+ len = 1 << (dip->i_depth - be16_to_cpu(leaf->lf_depth));
brelse(bh);
error = lc(dip, index, len, leaf_no, data);
@@ -1866,15 +1864,18 @@
memset(&rlist, 0, sizeof(struct gfs2_rgrp_list));
- ht = kzalloc(size, GFP_KERNEL);
+ ht = kzalloc(size, GFP_NOFS);
if (!ht)
return -ENOMEM;
- gfs2_alloc_get(dip);
+ if (!gfs2_alloc_get(dip)) {
+ error = -ENOMEM;
+ goto out;
+ }
error = gfs2_quota_hold(dip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
if (error)
- goto out;
+ goto out_put;
error = gfs2_rindex_hold(sdp, &dip->i_alloc->al_ri_gh);
if (error)
@@ -1894,7 +1895,7 @@
l_blocks++;
}
- gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE, 0);
+ gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE);
for (x = 0; x < rlist.rl_rgrps; x++) {
struct gfs2_rgrpd *rgd;
@@ -1921,11 +1922,7 @@
brelse(bh);
gfs2_free_meta(dip, blk, 1);
-
- if (!dip->i_di.di_blocks)
- gfs2_consist_inode(dip);
- dip->i_di.di_blocks--;
- gfs2_set_inode_blocks(&dip->i_inode);
+ gfs2_add_inode_blocks(&dip->i_inode, -1);
}
error = gfs2_dir_write_data(dip, ht, index * sizeof(u64), size);
@@ -1952,8 +1949,9 @@
gfs2_glock_dq_uninit(&dip->i_alloc->al_ri_gh);
out_qs:
gfs2_quota_unhold(dip);
-out:
+out_put:
gfs2_alloc_put(dip);
+out:
kfree(ht);
return error;
}
diff --git a/fs/gfs2/eattr.c b/fs/gfs2/eattr.c
index bee9970..e3f76f4 100644
--- a/fs/gfs2/eattr.c
+++ b/fs/gfs2/eattr.c
@@ -277,10 +277,7 @@
}
*dataptrs = 0;
- if (!ip->i_di.di_blocks)
- gfs2_consist_inode(ip);
- ip->i_di.di_blocks--;
- gfs2_set_inode_blocks(&ip->i_inode);
+ gfs2_add_inode_blocks(&ip->i_inode, -1);
}
if (bstart)
gfs2_free_meta(ip, bstart, blen);
@@ -321,6 +318,8 @@
int error;
al = gfs2_alloc_get(ip);
+ if (!al)
+ return -ENOMEM;
error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
if (error)
@@ -449,7 +448,7 @@
unsigned int x;
int error = 0;
- bh = kcalloc(nptrs, sizeof(struct buffer_head *), GFP_KERNEL);
+ bh = kcalloc(nptrs, sizeof(struct buffer_head *), GFP_NOFS);
if (!bh)
return -ENOMEM;
@@ -582,10 +581,11 @@
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct gfs2_ea_header *ea;
+ unsigned int n = 1;
u64 block;
- block = gfs2_alloc_meta(ip);
-
+ block = gfs2_alloc_block(ip, &n);
+ gfs2_trans_add_unrevoke(sdp, block, 1);
*bhp = gfs2_meta_new(ip->i_gl, block);
gfs2_trans_add_bh(ip->i_gl, *bhp, 1);
gfs2_metatype_set(*bhp, GFS2_METATYPE_EA, GFS2_FORMAT_EA);
@@ -597,8 +597,7 @@
ea->ea_flags = GFS2_EAFLAG_LAST;
ea->ea_num_ptrs = 0;
- ip->i_di.di_blocks++;
- gfs2_set_inode_blocks(&ip->i_inode);
+ gfs2_add_inode_blocks(&ip->i_inode, 1);
return 0;
}
@@ -642,15 +641,15 @@
struct buffer_head *bh;
u64 block;
int mh_size = sizeof(struct gfs2_meta_header);
+ unsigned int n = 1;
- block = gfs2_alloc_meta(ip);
-
+ block = gfs2_alloc_block(ip, &n);
+ gfs2_trans_add_unrevoke(sdp, block, 1);
bh = gfs2_meta_new(ip->i_gl, block);
gfs2_trans_add_bh(ip->i_gl, bh, 1);
gfs2_metatype_set(bh, GFS2_METATYPE_ED, GFS2_FORMAT_ED);
- ip->i_di.di_blocks++;
- gfs2_set_inode_blocks(&ip->i_inode);
+ gfs2_add_inode_blocks(&ip->i_inode, 1);
copy = data_len > sdp->sd_jbsize ? sdp->sd_jbsize :
data_len;
@@ -684,15 +683,13 @@
int error;
al = gfs2_alloc_get(ip);
+ if (!al)
+ return -ENOMEM;
- error = gfs2_quota_lock(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
+ error = gfs2_quota_lock_check(ip);
if (error)
goto out;
- error = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid);
- if (error)
- goto out_gunlock_q;
-
al->al_requested = blks;
error = gfs2_inplace_reserve(ip);
@@ -966,9 +963,9 @@
gfs2_trans_add_bh(ip->i_gl, indbh, 1);
} else {
u64 blk;
-
- blk = gfs2_alloc_meta(ip);
-
+ unsigned int n = 1;
+ blk = gfs2_alloc_block(ip, &n);
+ gfs2_trans_add_unrevoke(sdp, blk, 1);
indbh = gfs2_meta_new(ip->i_gl, blk);
gfs2_trans_add_bh(ip->i_gl, indbh, 1);
gfs2_metatype_set(indbh, GFS2_METATYPE_IN, GFS2_FORMAT_IN);
@@ -978,8 +975,7 @@
*eablk = cpu_to_be64(ip->i_di.di_eattr);
ip->i_di.di_eattr = blk;
ip->i_di.di_flags |= GFS2_DIF_EA_INDIRECT;
- ip->i_di.di_blocks++;
- gfs2_set_inode_blocks(&ip->i_inode);
+ gfs2_add_inode_blocks(&ip->i_inode, 1);
eablk++;
}
@@ -1210,7 +1206,7 @@
unsigned int x;
int error;
- bh = kcalloc(nptrs, sizeof(struct buffer_head *), GFP_KERNEL);
+ bh = kcalloc(nptrs, sizeof(struct buffer_head *), GFP_NOFS);
if (!bh)
return -ENOMEM;
@@ -1347,7 +1343,7 @@
else
goto out;
- gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE, 0);
+ gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE);
for (x = 0; x < rlist.rl_rgrps; x++) {
struct gfs2_rgrpd *rgd;
@@ -1387,10 +1383,7 @@
}
*eablk = 0;
- if (!ip->i_di.di_blocks)
- gfs2_consist_inode(ip);
- ip->i_di.di_blocks--;
- gfs2_set_inode_blocks(&ip->i_inode);
+ gfs2_add_inode_blocks(&ip->i_inode, -1);
}
if (bstart)
gfs2_free_meta(ip, bstart, blen);
@@ -1442,10 +1435,7 @@
gfs2_free_meta(ip, ip->i_di.di_eattr, 1);
ip->i_di.di_eattr = 0;
- if (!ip->i_di.di_blocks)
- gfs2_consist_inode(ip);
- ip->i_di.di_blocks--;
- gfs2_set_inode_blocks(&ip->i_inode);
+ gfs2_add_inode_blocks(&ip->i_inode, -1);
error = gfs2_meta_inode_buffer(ip, &dibh);
if (!error) {
@@ -1474,6 +1464,8 @@
int error;
al = gfs2_alloc_get(ip);
+ if (!al)
+ return -ENOMEM;
error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
if (error)
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 7175a4d..d636b3e 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -1,6 +1,6 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
@@ -35,7 +35,6 @@
#include "glock.h"
#include "glops.h"
#include "inode.h"
-#include "lm.h"
#include "lops.h"
#include "meta_io.h"
#include "quota.h"
@@ -183,7 +182,8 @@
struct gfs2_sbd *sdp = gl->gl_sbd;
struct inode *aspace = gl->gl_aspace;
- gfs2_lm_put_lock(sdp, gl->gl_lock);
+ if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+ sdp->sd_lockstruct.ls_ops->lm_put_lock(gl->gl_lock);
if (aspace)
gfs2_aspace_put(aspace);
@@ -197,7 +197,7 @@
*
*/
-void gfs2_glock_hold(struct gfs2_glock *gl)
+static void gfs2_glock_hold(struct gfs2_glock *gl)
{
atomic_inc(&gl->gl_ref);
}
@@ -293,6 +293,16 @@
gfs2_glock_put(gl);
}
+static int gfs2_lm_get_lock(struct gfs2_sbd *sdp, struct lm_lockname *name,
+ void **lockp)
+{
+ int error = -EIO;
+ if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+ error = sdp->sd_lockstruct.ls_ops->lm_get_lock(
+ sdp->sd_lockstruct.ls_lockspace, name, lockp);
+ return error;
+}
+
/**
* gfs2_glock_get() - Get a glock, or create one if one doesn't exist
* @sdp: The GFS2 superblock
@@ -338,8 +348,6 @@
gl->gl_ip = 0;
gl->gl_ops = glops;
gl->gl_req_gh = NULL;
- gl->gl_req_bh = NULL;
- gl->gl_vn = 0;
gl->gl_stamp = jiffies;
gl->gl_tchange = jiffies;
gl->gl_object = NULL;
@@ -595,11 +603,12 @@
blocked = rq_mutex(gh);
} else if (test_bit(GLF_DEMOTE, &gl->gl_flags)) {
blocked = rq_demote(gl);
- if (gl->gl_waiters2 && !blocked) {
+ if (test_bit(GLF_WAITERS2, &gl->gl_flags) &&
+ !blocked) {
set_bit(GLF_DEMOTE, &gl->gl_flags);
gl->gl_demote_state = LM_ST_UNLOCKED;
}
- gl->gl_waiters2 = 0;
+ clear_bit(GLF_WAITERS2, &gl->gl_flags);
} else if (!list_empty(&gl->gl_waiters3)) {
gh = list_entry(gl->gl_waiters3.next,
struct gfs2_holder, gh_list);
@@ -710,7 +719,7 @@
} else if (gl->gl_demote_state != LM_ST_UNLOCKED &&
gl->gl_demote_state != state) {
if (test_bit(GLF_DEMOTE_IN_PROGRESS, &gl->gl_flags))
- gl->gl_waiters2 = 1;
+ set_bit(GLF_WAITERS2, &gl->gl_flags);
else
gl->gl_demote_state = LM_ST_UNLOCKED;
}
@@ -743,6 +752,43 @@
}
/**
+ * drop_bh - Called after a lock module unlock completes
+ * @gl: the glock
+ * @ret: the return status
+ *
+ * Doesn't wake up the process waiting on the struct gfs2_holder (if any)
+ * Doesn't drop the reference on the glock the top half took out
+ *
+ */
+
+static void drop_bh(struct gfs2_glock *gl, unsigned int ret)
+{
+ struct gfs2_sbd *sdp = gl->gl_sbd;
+ struct gfs2_holder *gh = gl->gl_req_gh;
+
+ gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
+ gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
+ gfs2_assert_warn(sdp, !ret);
+
+ state_change(gl, LM_ST_UNLOCKED);
+
+ if (test_and_clear_bit(GLF_CONV_DEADLK, &gl->gl_flags)) {
+ spin_lock(&gl->gl_spin);
+ gh->gh_error = 0;
+ spin_unlock(&gl->gl_spin);
+ gfs2_glock_xmote_th(gl, gl->gl_req_gh);
+ gfs2_glock_put(gl);
+ return;
+ }
+
+ spin_lock(&gl->gl_spin);
+ gfs2_demote_wake(gl);
+ clear_bit(GLF_LOCK, &gl->gl_flags);
+ spin_unlock(&gl->gl_spin);
+ gfs2_glock_put(gl);
+}
+
+/**
* xmote_bh - Called after the lock module is done acquiring a lock
* @gl: The glock in question
* @ret: the int returned from the lock module
@@ -754,25 +800,19 @@
struct gfs2_sbd *sdp = gl->gl_sbd;
const struct gfs2_glock_operations *glops = gl->gl_ops;
struct gfs2_holder *gh = gl->gl_req_gh;
- int prev_state = gl->gl_state;
int op_done = 1;
+ if (!gh && (ret & LM_OUT_ST_MASK) == LM_ST_UNLOCKED) {
+ drop_bh(gl, ret);
+ return;
+ }
+
gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
gfs2_assert_warn(sdp, !(ret & LM_OUT_ASYNC));
state_change(gl, ret & LM_OUT_ST_MASK);
- if (prev_state != LM_ST_UNLOCKED && !(ret & LM_OUT_CACHEABLE)) {
- if (glops->go_inval)
- glops->go_inval(gl, DIO_METADATA);
- } else if (gl->gl_state == LM_ST_DEFERRED) {
- /* We might not want to do this here.
- Look at moving to the inode glops. */
- if (glops->go_inval)
- glops->go_inval(gl, 0);
- }
-
/* Deal with each possible exit condition */
if (!gh) {
@@ -782,7 +822,6 @@
} else {
spin_lock(&gl->gl_spin);
if (gl->gl_state != gl->gl_demote_state) {
- gl->gl_req_bh = NULL;
spin_unlock(&gl->gl_spin);
gfs2_glock_drop_th(gl);
gfs2_glock_put(gl);
@@ -793,6 +832,14 @@
}
} else {
spin_lock(&gl->gl_spin);
+ if (ret & LM_OUT_CONV_DEADLK) {
+ gh->gh_error = 0;
+ set_bit(GLF_CONV_DEADLK, &gl->gl_flags);
+ spin_unlock(&gl->gl_spin);
+ gfs2_glock_drop_th(gl);
+ gfs2_glock_put(gl);
+ return;
+ }
list_del_init(&gh->gh_list);
gh->gh_error = -EIO;
if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
@@ -824,7 +871,6 @@
if (op_done) {
spin_lock(&gl->gl_spin);
gl->gl_req_gh = NULL;
- gl->gl_req_bh = NULL;
clear_bit(GLF_LOCK, &gl->gl_flags);
spin_unlock(&gl->gl_spin);
}
@@ -835,6 +881,17 @@
gfs2_holder_wake(gh);
}
+static unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, void *lock,
+ unsigned int cur_state, unsigned int req_state,
+ unsigned int flags)
+{
+ int ret = 0;
+ if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+ ret = sdp->sd_lockstruct.ls_ops->lm_lock(lock, cur_state,
+ req_state, flags);
+ return ret;
+}
+
/**
* gfs2_glock_xmote_th - Call into the lock module to acquire or change a glock
* @gl: The glock in question
@@ -856,6 +913,8 @@
if (glops->go_xmote_th)
glops->go_xmote_th(gl);
+ if (state == LM_ST_DEFERRED && glops->go_inval)
+ glops->go_inval(gl, DIO_METADATA);
gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
@@ -863,7 +922,6 @@
gfs2_assert_warn(sdp, state != gl->gl_state);
gfs2_glock_hold(gl);
- gl->gl_req_bh = xmote_bh;
lck_ret = gfs2_lm_lock(sdp, gl->gl_lock, gl->gl_state, state, lck_flags);
@@ -876,49 +934,13 @@
xmote_bh(gl, lck_ret);
}
-/**
- * drop_bh - Called after a lock module unlock completes
- * @gl: the glock
- * @ret: the return status
- *
- * Doesn't wake up the process waiting on the struct gfs2_holder (if any)
- * Doesn't drop the reference on the glock the top half took out
- *
- */
-
-static void drop_bh(struct gfs2_glock *gl, unsigned int ret)
+static unsigned int gfs2_lm_unlock(struct gfs2_sbd *sdp, void *lock,
+ unsigned int cur_state)
{
- struct gfs2_sbd *sdp = gl->gl_sbd;
- const struct gfs2_glock_operations *glops = gl->gl_ops;
- struct gfs2_holder *gh = gl->gl_req_gh;
-
- gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
- gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
- gfs2_assert_warn(sdp, !ret);
-
- state_change(gl, LM_ST_UNLOCKED);
-
- if (glops->go_inval)
- glops->go_inval(gl, DIO_METADATA);
-
- if (gh) {
- spin_lock(&gl->gl_spin);
- list_del_init(&gh->gh_list);
- gh->gh_error = 0;
- spin_unlock(&gl->gl_spin);
- }
-
- spin_lock(&gl->gl_spin);
- gfs2_demote_wake(gl);
- gl->gl_req_gh = NULL;
- gl->gl_req_bh = NULL;
- clear_bit(GLF_LOCK, &gl->gl_flags);
- spin_unlock(&gl->gl_spin);
-
- gfs2_glock_put(gl);
-
- if (gh)
- gfs2_holder_wake(gh);
+ int ret = 0;
+ if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+ ret = sdp->sd_lockstruct.ls_ops->lm_unlock(lock, cur_state);
+ return ret;
}
/**
@@ -935,13 +957,14 @@
if (glops->go_xmote_th)
glops->go_xmote_th(gl);
+ if (glops->go_inval)
+ glops->go_inval(gl, DIO_METADATA);
gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
gfs2_assert_warn(sdp, gl->gl_state != LM_ST_UNLOCKED);
gfs2_glock_hold(gl);
- gl->gl_req_bh = drop_bh;
ret = gfs2_lm_unlock(sdp, gl->gl_lock, gl->gl_state);
@@ -964,16 +987,17 @@
static void do_cancels(struct gfs2_holder *gh)
{
struct gfs2_glock *gl = gh->gh_gl;
+ struct gfs2_sbd *sdp = gl->gl_sbd;
spin_lock(&gl->gl_spin);
while (gl->gl_req_gh != gh &&
!test_bit(HIF_HOLDER, &gh->gh_iflags) &&
!list_empty(&gh->gh_list)) {
- if (gl->gl_req_bh && !(gl->gl_req_gh &&
- (gl->gl_req_gh->gh_flags & GL_NOCANCEL))) {
+ if (!(gl->gl_req_gh && (gl->gl_req_gh->gh_flags & GL_NOCANCEL))) {
spin_unlock(&gl->gl_spin);
- gfs2_lm_cancel(gl->gl_sbd, gl->gl_lock);
+ if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+ sdp->sd_lockstruct.ls_ops->lm_cancel(gl->gl_lock);
msleep(100);
spin_lock(&gl->gl_spin);
} else {
@@ -1041,7 +1065,6 @@
spin_lock(&gl->gl_spin);
gl->gl_req_gh = NULL;
- gl->gl_req_bh = NULL;
clear_bit(GLF_LOCK, &gl->gl_flags);
run_queue(gl);
spin_unlock(&gl->gl_spin);
@@ -1428,6 +1451,14 @@
gfs2_glock_dq_uninit(&ghs[x]);
}
+static int gfs2_lm_hold_lvb(struct gfs2_sbd *sdp, void *lock, char **lvbp)
+{
+ int error = -EIO;
+ if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+ error = sdp->sd_lockstruct.ls_ops->lm_hold_lvb(lock, lvbp);
+ return error;
+}
+
/**
* gfs2_lvb_hold - attach a LVB from a glock
* @gl: The glock in question
@@ -1463,12 +1494,15 @@
void gfs2_lvb_unhold(struct gfs2_glock *gl)
{
+ struct gfs2_sbd *sdp = gl->gl_sbd;
+
gfs2_glock_hold(gl);
gfs2_glmutex_lock(gl);
gfs2_assert(gl->gl_sbd, atomic_read(&gl->gl_lvb_count) > 0);
if (atomic_dec_and_test(&gl->gl_lvb_count)) {
- gfs2_lm_unhold_lvb(gl->gl_sbd, gl->gl_lock, gl->gl_lvb);
+ if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+ sdp->sd_lockstruct.ls_ops->lm_unhold_lvb(gl->gl_lock, gl->gl_lvb);
gl->gl_lvb = NULL;
gfs2_glock_put(gl);
}
@@ -1534,8 +1568,7 @@
gl = gfs2_glock_find(sdp, &async->lc_name);
if (gfs2_assert_warn(sdp, gl))
return;
- if (!gfs2_assert_warn(sdp, gl->gl_req_bh))
- gl->gl_req_bh(gl, async->lc_ret);
+ xmote_bh(gl, async->lc_ret);
if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
gfs2_glock_put(gl);
up_read(&gfs2_umount_flush_sem);
@@ -1594,10 +1627,10 @@
gfs2_glock_hold(gl);
list_add(&gl->gl_reclaim, &sdp->sd_reclaim_list);
atomic_inc(&sdp->sd_reclaim_count);
- }
- spin_unlock(&sdp->sd_reclaim_lock);
-
- wake_up(&sdp->sd_reclaim_wq);
+ spin_unlock(&sdp->sd_reclaim_lock);
+ wake_up(&sdp->sd_reclaim_wq);
+ } else
+ spin_unlock(&sdp->sd_reclaim_lock);
}
/**
@@ -1897,7 +1930,6 @@
print_dbg(gi, " gl_owner = -1\n");
print_dbg(gi, " gl_ip = %lu\n", gl->gl_ip);
print_dbg(gi, " req_gh = %s\n", (gl->gl_req_gh) ? "yes" : "no");
- print_dbg(gi, " req_bh = %s\n", (gl->gl_req_bh) ? "yes" : "no");
print_dbg(gi, " lvb_count = %d\n", atomic_read(&gl->gl_lvb_count));
print_dbg(gi, " object = %s\n", (gl->gl_object) ? "yes" : "no");
print_dbg(gi, " reclaim = %s\n",
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index 2f9c6d1..cdad3e6 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -32,24 +32,23 @@
#define GLR_TRYFAILED 13
#define GLR_CANCELED 14
-static inline int gfs2_glock_is_locked_by_me(struct gfs2_glock *gl)
+static inline struct gfs2_holder *gfs2_glock_is_locked_by_me(struct gfs2_glock *gl)
{
struct gfs2_holder *gh;
- int locked = 0;
struct pid *pid;
/* Look in glock's list of holders for one with current task as owner */
spin_lock(&gl->gl_spin);
pid = task_pid(current);
list_for_each_entry(gh, &gl->gl_holders, gh_list) {
- if (gh->gh_owner_pid == pid) {
- locked = 1;
- break;
- }
+ if (gh->gh_owner_pid == pid)
+ goto out;
}
+ gh = NULL;
+out:
spin_unlock(&gl->gl_spin);
- return locked;
+ return gh;
}
static inline int gfs2_glock_is_held_excl(struct gfs2_glock *gl)
@@ -79,7 +78,6 @@
int gfs2_glock_get(struct gfs2_sbd *sdp,
u64 number, const struct gfs2_glock_operations *glops,
int create, struct gfs2_glock **glp);
-void gfs2_glock_hold(struct gfs2_glock *gl);
int gfs2_glock_put(struct gfs2_glock *gl);
void gfs2_holder_init(struct gfs2_glock *gl, unsigned int state, unsigned flags,
struct gfs2_holder *gh);
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index c663b7a..d31bada 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -1,6 +1,6 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
@@ -126,7 +126,13 @@
return;
gfs2_meta_inval(gl);
- gl->gl_vn++;
+ if (gl->gl_object == GFS2_I(gl->gl_sbd->sd_rindex))
+ gl->gl_sbd->sd_rindex_uptodate = 0;
+ else if (gl->gl_ops == &gfs2_rgrp_glops && gl->gl_object) {
+ struct gfs2_rgrpd *rgd = (struct gfs2_rgrpd *)gl->gl_object;
+
+ rgd->rd_flags &= ~GFS2_RDF_UPTODATE;
+ }
}
/**
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 525dcae..9c2c0b9 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -1,6 +1,6 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
@@ -44,7 +44,6 @@
struct gfs2_log_operations {
void (*lo_add) (struct gfs2_sbd *sdp, struct gfs2_log_element *le);
- void (*lo_incore_commit) (struct gfs2_sbd *sdp, struct gfs2_trans *tr);
void (*lo_before_commit) (struct gfs2_sbd *sdp);
void (*lo_after_commit) (struct gfs2_sbd *sdp, struct gfs2_ail *ai);
void (*lo_before_scan) (struct gfs2_jdesc *jd,
@@ -70,7 +69,6 @@
};
struct gfs2_rgrp_host {
- u32 rg_flags;
u32 rg_free;
u32 rg_dinodes;
u64 rg_igeneration;
@@ -87,17 +85,17 @@
u32 rd_data; /* num of data blocks in rgrp */
u32 rd_bitbytes; /* number of bytes in data bitmaps */
struct gfs2_rgrp_host rd_rg;
- u64 rd_rg_vn;
struct gfs2_bitmap *rd_bits;
unsigned int rd_bh_count;
struct mutex rd_mutex;
u32 rd_free_clone;
struct gfs2_log_element rd_le;
- u32 rd_last_alloc_data;
- u32 rd_last_alloc_meta;
+ u32 rd_last_alloc;
struct gfs2_sbd *rd_sbd;
- unsigned long rd_flags;
-#define GFS2_RDF_CHECK 0x0001 /* Need to check for unlinked inodes */
+ unsigned char rd_flags;
+#define GFS2_RDF_CHECK 0x01 /* Need to check for unlinked inodes */
+#define GFS2_RDF_NOALLOC 0x02 /* rg prohibits allocation */
+#define GFS2_RDF_UPTODATE 0x04 /* rg is up to date */
};
enum gfs2_state_bits {
@@ -168,6 +166,8 @@
GLF_DIRTY = 5,
GLF_DEMOTE_IN_PROGRESS = 6,
GLF_LFLUSH = 7,
+ GLF_WAITERS2 = 8,
+ GLF_CONV_DEADLK = 9,
};
struct gfs2_glock {
@@ -187,18 +187,15 @@
struct list_head gl_holders;
struct list_head gl_waiters1; /* HIF_MUTEX */
struct list_head gl_waiters3; /* HIF_PROMOTE */
- int gl_waiters2; /* GIF_DEMOTE */
const struct gfs2_glock_operations *gl_ops;
struct gfs2_holder *gl_req_gh;
- gfs2_glop_bh_t gl_req_bh;
void *gl_lock;
char *gl_lvb;
atomic_t gl_lvb_count;
- u64 gl_vn;
unsigned long gl_stamp;
unsigned long gl_tchange;
void *gl_object;
@@ -213,6 +210,8 @@
struct delayed_work gl_work;
};
+#define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */
+
struct gfs2_alloc {
/* Quota stuff */
@@ -241,14 +240,9 @@
struct gfs2_dinode_host {
u64 di_size; /* number of bytes in file */
- u64 di_blocks; /* number of blocks in file */
- u64 di_goal_meta; /* rgrp to alloc from next */
- u64 di_goal_data; /* data block goal */
u64 di_generation; /* generation number for NFS */
u32 di_flags; /* GFS2_DIF_... */
- u16 di_height; /* height of metadata */
/* These only apply to directories */
- u16 di_depth; /* Number of bits in the table */
u32 di_entries; /* The number of entries in the directory */
u64 di_eattr; /* extended attribute block number */
};
@@ -265,9 +259,10 @@
struct gfs2_holder i_iopen_gh;
struct gfs2_holder i_gh; /* for prepare/commit_write only */
struct gfs2_alloc *i_alloc;
- u64 i_last_rg_alloc;
-
+ u64 i_goal; /* goal block for allocations */
struct rw_semaphore i_rw_mutex;
+ u8 i_height;
+ u8 i_depth;
};
/*
@@ -490,9 +485,9 @@
u32 sd_qc_per_block;
u32 sd_max_dirres; /* Max blocks needed to add a directory entry */
u32 sd_max_height; /* Max height of a file's metadata tree */
- u64 sd_heightsize[GFS2_MAX_META_HEIGHT];
+ u64 sd_heightsize[GFS2_MAX_META_HEIGHT + 1];
u32 sd_max_jheight; /* Max height of journaled file's meta tree */
- u64 sd_jheightsize[GFS2_MAX_META_HEIGHT];
+ u64 sd_jheightsize[GFS2_MAX_META_HEIGHT + 1];
struct gfs2_args sd_args; /* Mount arguments */
struct gfs2_tune sd_tune; /* Filesystem tuning structure */
@@ -533,7 +528,7 @@
/* Resource group stuff */
- u64 sd_rindex_vn;
+ int sd_rindex_uptodate;
spinlock_t sd_rindex_spin;
struct mutex sd_rindex_mutex;
struct list_head sd_rindex_list;
@@ -637,9 +632,6 @@
/* Counters */
- atomic_t sd_glock_count;
- atomic_t sd_glock_held_count;
- atomic_t sd_inode_count;
atomic_t sd_reclaimed;
char sd_fsname[GFS2_FSNAME_LEN];
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 37725ad..3a9ef52 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1,6 +1,6 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
@@ -149,7 +149,8 @@
} else if (S_ISLNK(mode)) {
inode->i_op = &gfs2_symlink_iops;
} else {
- inode->i_op = &gfs2_dev_iops;
+ inode->i_op = &gfs2_file_iops;
+ init_special_inode(inode, inode->i_mode, inode->i_rdev);
}
unlock_new_inode(inode);
@@ -248,12 +249,10 @@
{
struct gfs2_dinode_host *di = &ip->i_di;
const struct gfs2_dinode *str = buf;
+ u16 height, depth;
- if (ip->i_no_addr != be64_to_cpu(str->di_num.no_addr)) {
- if (gfs2_consist_inode(ip))
- gfs2_dinode_print(ip);
- return -EIO;
- }
+ if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr)))
+ goto corrupt;
ip->i_no_formal_ino = be64_to_cpu(str->di_num.no_formal_ino);
ip->i_inode.i_mode = be32_to_cpu(str->di_mode);
ip->i_inode.i_rdev = 0;
@@ -275,8 +274,7 @@
ip->i_inode.i_nlink = be32_to_cpu(str->di_nlink);
di->di_size = be64_to_cpu(str->di_size);
i_size_write(&ip->i_inode, di->di_size);
- di->di_blocks = be64_to_cpu(str->di_blocks);
- gfs2_set_inode_blocks(&ip->i_inode);
+ gfs2_set_inode_blocks(&ip->i_inode, be64_to_cpu(str->di_blocks));
ip->i_inode.i_atime.tv_sec = be64_to_cpu(str->di_atime);
ip->i_inode.i_atime.tv_nsec = be32_to_cpu(str->di_atime_nsec);
ip->i_inode.i_mtime.tv_sec = be64_to_cpu(str->di_mtime);
@@ -284,15 +282,20 @@
ip->i_inode.i_ctime.tv_sec = be64_to_cpu(str->di_ctime);
ip->i_inode.i_ctime.tv_nsec = be32_to_cpu(str->di_ctime_nsec);
- di->di_goal_meta = be64_to_cpu(str->di_goal_meta);
- di->di_goal_data = be64_to_cpu(str->di_goal_data);
+ ip->i_goal = be64_to_cpu(str->di_goal_meta);
di->di_generation = be64_to_cpu(str->di_generation);
di->di_flags = be32_to_cpu(str->di_flags);
gfs2_set_inode_flags(&ip->i_inode);
- di->di_height = be16_to_cpu(str->di_height);
+ height = be16_to_cpu(str->di_height);
+ if (unlikely(height > GFS2_MAX_META_HEIGHT))
+ goto corrupt;
+ ip->i_height = (u8)height;
- di->di_depth = be16_to_cpu(str->di_depth);
+ depth = be16_to_cpu(str->di_depth);
+ if (unlikely(depth > GFS2_DIR_MAX_DEPTH))
+ goto corrupt;
+ ip->i_depth = (u8)depth;
di->di_entries = be32_to_cpu(str->di_entries);
di->di_eattr = be64_to_cpu(str->di_eattr);
@@ -300,6 +303,10 @@
gfs2_set_aops(&ip->i_inode);
return 0;
+corrupt:
+ if (gfs2_consist_inode(ip))
+ gfs2_dinode_print(ip);
+ return -EIO;
}
/**
@@ -337,13 +344,15 @@
struct gfs2_rgrpd *rgd;
int error;
- if (ip->i_di.di_blocks != 1) {
+ if (gfs2_get_inode_blocks(&ip->i_inode) != 1) {
if (gfs2_consist_inode(ip))
gfs2_dinode_print(ip);
return -EIO;
}
al = gfs2_alloc_get(ip);
+ if (!al)
+ return -ENOMEM;
error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
if (error)
@@ -487,7 +496,7 @@
return dir;
}
- if (gfs2_glock_is_locked_by_me(dip->i_gl) == 0) {
+ if (gfs2_glock_is_locked_by_me(dip->i_gl) == NULL) {
error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, &d_gh);
if (error)
return ERR_PTR(error);
@@ -818,7 +827,8 @@
int error;
munge_mode_uid_gid(dip, &mode, &uid, &gid);
- gfs2_alloc_get(dip);
+ if (!gfs2_alloc_get(dip))
+ return -ENOMEM;
error = gfs2_quota_lock(dip, uid, gid);
if (error)
@@ -853,6 +863,8 @@
int error;
al = gfs2_alloc_get(dip);
+ if (!al)
+ return -ENOMEM;
error = gfs2_quota_lock(dip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
if (error)
@@ -1219,7 +1231,7 @@
x = ip->i_di.di_size + 1;
if (x > *len) {
- *buf = kmalloc(x, GFP_KERNEL);
+ *buf = kmalloc(x, GFP_NOFS);
if (!*buf) {
error = -ENOMEM;
goto out_brelse;
@@ -1391,21 +1403,21 @@
str->di_gid = cpu_to_be32(ip->i_inode.i_gid);
str->di_nlink = cpu_to_be32(ip->i_inode.i_nlink);
str->di_size = cpu_to_be64(di->di_size);
- str->di_blocks = cpu_to_be64(di->di_blocks);
+ str->di_blocks = cpu_to_be64(gfs2_get_inode_blocks(&ip->i_inode));
str->di_atime = cpu_to_be64(ip->i_inode.i_atime.tv_sec);
str->di_mtime = cpu_to_be64(ip->i_inode.i_mtime.tv_sec);
str->di_ctime = cpu_to_be64(ip->i_inode.i_ctime.tv_sec);
- str->di_goal_meta = cpu_to_be64(di->di_goal_meta);
- str->di_goal_data = cpu_to_be64(di->di_goal_data);
+ str->di_goal_meta = cpu_to_be64(ip->i_goal);
+ str->di_goal_data = cpu_to_be64(ip->i_goal);
str->di_generation = cpu_to_be64(di->di_generation);
str->di_flags = cpu_to_be32(di->di_flags);
- str->di_height = cpu_to_be16(di->di_height);
+ str->di_height = cpu_to_be16(ip->i_height);
str->di_payload_format = cpu_to_be32(S_ISDIR(ip->i_inode.i_mode) &&
!(ip->i_di.di_flags & GFS2_DIF_EXHASH) ?
GFS2_FORMAT_DE : 0);
- str->di_depth = cpu_to_be16(di->di_depth);
+ str->di_depth = cpu_to_be16(ip->i_depth);
str->di_entries = cpu_to_be32(di->di_entries);
str->di_eattr = cpu_to_be64(di->di_eattr);
@@ -1423,15 +1435,13 @@
printk(KERN_INFO " no_addr = %llu\n",
(unsigned long long)ip->i_no_addr);
printk(KERN_INFO " di_size = %llu\n", (unsigned long long)di->di_size);
- printk(KERN_INFO " di_blocks = %llu\n",
- (unsigned long long)di->di_blocks);
- printk(KERN_INFO " di_goal_meta = %llu\n",
- (unsigned long long)di->di_goal_meta);
- printk(KERN_INFO " di_goal_data = %llu\n",
- (unsigned long long)di->di_goal_data);
+ printk(KERN_INFO " blocks = %llu\n",
+ (unsigned long long)gfs2_get_inode_blocks(&ip->i_inode));
+ printk(KERN_INFO " i_goal = %llu\n",
+ (unsigned long long)ip->i_goal);
printk(KERN_INFO " di_flags = 0x%.8X\n", di->di_flags);
- printk(KERN_INFO " di_height = %u\n", di->di_height);
- printk(KERN_INFO " di_depth = %u\n", di->di_depth);
+ printk(KERN_INFO " i_height = %u\n", ip->i_height);
+ printk(KERN_INFO " i_depth = %u\n", ip->i_depth);
printk(KERN_INFO " di_entries = %u\n", di->di_entries);
printk(KERN_INFO " di_eattr = %llu\n",
(unsigned long long)di->di_eattr);
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index d446506..580da45 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -10,9 +10,11 @@
#ifndef __INODE_DOT_H__
#define __INODE_DOT_H__
+#include "util.h"
+
static inline int gfs2_is_stuffed(const struct gfs2_inode *ip)
{
- return !ip->i_di.di_height;
+ return !ip->i_height;
}
static inline int gfs2_is_jdata(const struct gfs2_inode *ip)
@@ -37,13 +39,25 @@
return S_ISDIR(ip->i_inode.i_mode);
}
-static inline void gfs2_set_inode_blocks(struct inode *inode)
+static inline void gfs2_set_inode_blocks(struct inode *inode, u64 blocks)
{
- struct gfs2_inode *ip = GFS2_I(inode);
- inode->i_blocks = ip->i_di.di_blocks <<
+ inode->i_blocks = blocks <<
(GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT);
}
+static inline u64 gfs2_get_inode_blocks(const struct inode *inode)
+{
+ return inode->i_blocks >>
+ (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT);
+}
+
+static inline void gfs2_add_inode_blocks(struct inode *inode, s64 change)
+{
+ gfs2_assert(GFS2_SB(inode), (change >= 0 || inode->i_blocks > -change));
+ change *= (GFS2_SB(inode)->sd_sb.sb_bsize/GFS2_BASIC_BLOCK);
+ inode->i_blocks += change;
+}
+
static inline int gfs2_check_inum(const struct gfs2_inode *ip, u64 no_addr,
u64 no_formal_ino)
{
diff --git a/fs/gfs2/lm.c b/fs/gfs2/lm.c
deleted file mode 100644
index cfcc39b..0000000
--- a/fs/gfs2/lm.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/completion.h>
-#include <linux/buffer_head.h>
-#include <linux/delay.h>
-#include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
-
-#include "gfs2.h"
-#include "incore.h"
-#include "glock.h"
-#include "lm.h"
-#include "super.h"
-#include "util.h"
-
-/**
- * gfs2_lm_mount - mount a locking protocol
- * @sdp: the filesystem
- * @args: mount arguements
- * @silent: if 1, don't complain if the FS isn't a GFS2 fs
- *
- * Returns: errno
- */
-
-int gfs2_lm_mount(struct gfs2_sbd *sdp, int silent)
-{
- char *proto = sdp->sd_proto_name;
- char *table = sdp->sd_table_name;
- int flags = 0;
- int error;
-
- if (sdp->sd_args.ar_spectator)
- flags |= LM_MFLAG_SPECTATOR;
-
- fs_info(sdp, "Trying to join cluster \"%s\", \"%s\"\n", proto, table);
-
- error = gfs2_mount_lockproto(proto, table, sdp->sd_args.ar_hostdata,
- gfs2_glock_cb, sdp,
- GFS2_MIN_LVB_SIZE, flags,
- &sdp->sd_lockstruct, &sdp->sd_kobj);
- if (error) {
- fs_info(sdp, "can't mount proto=%s, table=%s, hostdata=%s\n",
- proto, table, sdp->sd_args.ar_hostdata);
- goto out;
- }
-
- if (gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_lockspace) ||
- gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_ops) ||
- gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_lvb_size >=
- GFS2_MIN_LVB_SIZE)) {
- gfs2_unmount_lockproto(&sdp->sd_lockstruct);
- goto out;
- }
-
- if (sdp->sd_args.ar_spectator)
- snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s.s", table);
- else
- snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s.%u", table,
- sdp->sd_lockstruct.ls_jid);
-
- fs_info(sdp, "Joined cluster. Now mounting FS...\n");
-
- if ((sdp->sd_lockstruct.ls_flags & LM_LSFLAG_LOCAL) &&
- !sdp->sd_args.ar_ignore_local_fs) {
- sdp->sd_args.ar_localflocks = 1;
- sdp->sd_args.ar_localcaching = 1;
- }
-
-out:
- return error;
-}
-
-void gfs2_lm_others_may_mount(struct gfs2_sbd *sdp)
-{
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- sdp->sd_lockstruct.ls_ops->lm_others_may_mount(
- sdp->sd_lockstruct.ls_lockspace);
-}
-
-void gfs2_lm_unmount(struct gfs2_sbd *sdp)
-{
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- gfs2_unmount_lockproto(&sdp->sd_lockstruct);
-}
-
-int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...)
-{
- va_list args;
-
- if (test_and_set_bit(SDF_SHUTDOWN, &sdp->sd_flags))
- return 0;
-
- va_start(args, fmt);
- vprintk(fmt, args);
- va_end(args);
-
- fs_err(sdp, "about to withdraw this file system\n");
- BUG_ON(sdp->sd_args.ar_debug);
-
- fs_err(sdp, "telling LM to withdraw\n");
- gfs2_withdraw_lockproto(&sdp->sd_lockstruct);
- fs_err(sdp, "withdrawn\n");
- dump_stack();
-
- return -1;
-}
-
-int gfs2_lm_get_lock(struct gfs2_sbd *sdp, struct lm_lockname *name,
- void **lockp)
-{
- int error = -EIO;
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- error = sdp->sd_lockstruct.ls_ops->lm_get_lock(
- sdp->sd_lockstruct.ls_lockspace, name, lockp);
- return error;
-}
-
-void gfs2_lm_put_lock(struct gfs2_sbd *sdp, void *lock)
-{
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- sdp->sd_lockstruct.ls_ops->lm_put_lock(lock);
-}
-
-unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, void *lock,
- unsigned int cur_state, unsigned int req_state,
- unsigned int flags)
-{
- int ret = 0;
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- ret = sdp->sd_lockstruct.ls_ops->lm_lock(lock, cur_state,
- req_state, flags);
- return ret;
-}
-
-unsigned int gfs2_lm_unlock(struct gfs2_sbd *sdp, void *lock,
- unsigned int cur_state)
-{
- int ret = 0;
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- ret = sdp->sd_lockstruct.ls_ops->lm_unlock(lock, cur_state);
- return ret;
-}
-
-void gfs2_lm_cancel(struct gfs2_sbd *sdp, void *lock)
-{
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- sdp->sd_lockstruct.ls_ops->lm_cancel(lock);
-}
-
-int gfs2_lm_hold_lvb(struct gfs2_sbd *sdp, void *lock, char **lvbp)
-{
- int error = -EIO;
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- error = sdp->sd_lockstruct.ls_ops->lm_hold_lvb(lock, lvbp);
- return error;
-}
-
-void gfs2_lm_unhold_lvb(struct gfs2_sbd *sdp, void *lock, char *lvb)
-{
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- sdp->sd_lockstruct.ls_ops->lm_unhold_lvb(lock, lvb);
-}
-
-int gfs2_lm_plock_get(struct gfs2_sbd *sdp, struct lm_lockname *name,
- struct file *file, struct file_lock *fl)
-{
- int error = -EIO;
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- error = sdp->sd_lockstruct.ls_ops->lm_plock_get(
- sdp->sd_lockstruct.ls_lockspace, name, file, fl);
- return error;
-}
-
-int gfs2_lm_plock(struct gfs2_sbd *sdp, struct lm_lockname *name,
- struct file *file, int cmd, struct file_lock *fl)
-{
- int error = -EIO;
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- error = sdp->sd_lockstruct.ls_ops->lm_plock(
- sdp->sd_lockstruct.ls_lockspace, name, file, cmd, fl);
- return error;
-}
-
-int gfs2_lm_punlock(struct gfs2_sbd *sdp, struct lm_lockname *name,
- struct file *file, struct file_lock *fl)
-{
- int error = -EIO;
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- error = sdp->sd_lockstruct.ls_ops->lm_punlock(
- sdp->sd_lockstruct.ls_lockspace, name, file, fl);
- return error;
-}
-
-void gfs2_lm_recovery_done(struct gfs2_sbd *sdp, unsigned int jid,
- unsigned int message)
-{
- if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
- sdp->sd_lockstruct.ls_ops->lm_recovery_done(
- sdp->sd_lockstruct.ls_lockspace, jid, message);
-}
-
diff --git a/fs/gfs2/lm.h b/fs/gfs2/lm.h
deleted file mode 100644
index 21cdc30..0000000
--- a/fs/gfs2/lm.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#ifndef __LM_DOT_H__
-#define __LM_DOT_H__
-
-struct gfs2_sbd;
-
-#define GFS2_MIN_LVB_SIZE 32
-
-int gfs2_lm_mount(struct gfs2_sbd *sdp, int silent);
-void gfs2_lm_others_may_mount(struct gfs2_sbd *sdp);
-void gfs2_lm_unmount(struct gfs2_sbd *sdp);
-int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...)
- __attribute__ ((format(printf, 2, 3)));
-int gfs2_lm_get_lock(struct gfs2_sbd *sdp, struct lm_lockname *name,
- void **lockp);
-void gfs2_lm_put_lock(struct gfs2_sbd *sdp, void *lock);
-unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, void *lock,
- unsigned int cur_state, unsigned int req_state,
- unsigned int flags);
-unsigned int gfs2_lm_unlock(struct gfs2_sbd *sdp, void *lock,
- unsigned int cur_state);
-void gfs2_lm_cancel(struct gfs2_sbd *sdp, void *lock);
-int gfs2_lm_hold_lvb(struct gfs2_sbd *sdp, void *lock, char **lvbp);
-void gfs2_lm_unhold_lvb(struct gfs2_sbd *sdp, void *lock, char *lvb);
-int gfs2_lm_plock_get(struct gfs2_sbd *sdp, struct lm_lockname *name,
- struct file *file, struct file_lock *fl);
-int gfs2_lm_plock(struct gfs2_sbd *sdp, struct lm_lockname *name,
- struct file *file, int cmd, struct file_lock *fl);
-int gfs2_lm_punlock(struct gfs2_sbd *sdp, struct lm_lockname *name,
- struct file *file, struct file_lock *fl);
-void gfs2_lm_recovery_done(struct gfs2_sbd *sdp, unsigned int jid,
- unsigned int message);
-
-#endif /* __LM_DOT_H__ */
diff --git a/fs/gfs2/locking/dlm/lock.c b/fs/gfs2/locking/dlm/lock.c
index 542a797..cf7ea8a 100644
--- a/fs/gfs2/locking/dlm/lock.c
+++ b/fs/gfs2/locking/dlm/lock.c
@@ -137,7 +137,8 @@
/* Conversion deadlock avoidance by DLM */
- if (!test_bit(LFL_FORCE_PROMOTE, &lp->flags) &&
+ if (!(lp->ls->fsflags & LM_MFLAG_CONV_NODROP) &&
+ !test_bit(LFL_FORCE_PROMOTE, &lp->flags) &&
!(lkf & DLM_LKF_NOQUEUE) &&
cur > DLM_LOCK_NL && req > DLM_LOCK_NL && cur != req)
lkf |= DLM_LKF_CONVDEADLK;
@@ -164,7 +165,7 @@
{
struct gdlm_lock *lp;
- lp = kzalloc(sizeof(struct gdlm_lock), GFP_KERNEL);
+ lp = kzalloc(sizeof(struct gdlm_lock), GFP_NOFS);
if (!lp)
return -ENOMEM;
@@ -382,7 +383,7 @@
{
char *lvb;
- lvb = kzalloc(GDLM_LVB_SIZE, GFP_KERNEL);
+ lvb = kzalloc(GDLM_LVB_SIZE, GFP_NOFS);
if (!lvb)
return -ENOMEM;
diff --git a/fs/gfs2/locking/dlm/lock_dlm.h b/fs/gfs2/locking/dlm/lock_dlm.h
index 9e8265d..58fcf8c 100644
--- a/fs/gfs2/locking/dlm/lock_dlm.h
+++ b/fs/gfs2/locking/dlm/lock_dlm.h
@@ -183,5 +183,10 @@
struct file_lock *);
int gdlm_punlock(void *, struct lm_lockname *, struct file *,
struct file_lock *);
+
+/* mount.c */
+
+extern const struct lm_lockops gdlm_ops;
+
#endif
diff --git a/fs/gfs2/locking/dlm/main.c b/fs/gfs2/locking/dlm/main.c
index a0e7eda..36a2258 100644
--- a/fs/gfs2/locking/dlm/main.c
+++ b/fs/gfs2/locking/dlm/main.c
@@ -11,8 +11,6 @@
#include "lock_dlm.h"
-extern struct lm_lockops gdlm_ops;
-
static int __init init_lock_dlm(void)
{
int error;
diff --git a/fs/gfs2/locking/dlm/sysfs.c b/fs/gfs2/locking/dlm/sysfs.c
index a87b098..8479da4 100644
--- a/fs/gfs2/locking/dlm/sysfs.c
+++ b/fs/gfs2/locking/dlm/sysfs.c
@@ -12,8 +12,6 @@
#include "lock_dlm.h"
-extern struct lm_lockops gdlm_ops;
-
static ssize_t proto_name_show(struct gdlm_ls *ls, char *buf)
{
return sprintf(buf, "%s\n", gdlm_ops.lm_proto_name);
diff --git a/fs/gfs2/locking/dlm/thread.c b/fs/gfs2/locking/dlm/thread.c
index 521694f..e53db6f 100644
--- a/fs/gfs2/locking/dlm/thread.c
+++ b/fs/gfs2/locking/dlm/thread.c
@@ -135,7 +135,15 @@
lp->lksb.sb_status, lp->lockname.ln_type,
(unsigned long long)lp->lockname.ln_number,
lp->flags);
- return;
+ if (lp->lksb.sb_status == -EDEADLOCK &&
+ lp->ls->fsflags & LM_MFLAG_CONV_NODROP) {
+ lp->req = lp->cur;
+ acb.lc_ret |= LM_OUT_CONV_DEADLK;
+ if (lp->cur == DLM_LOCK_IV)
+ lp->lksb.sb_lkid = 0;
+ goto out;
+ } else
+ return;
}
/*
diff --git a/fs/gfs2/locking/nolock/main.c b/fs/gfs2/locking/nolock/main.c
index d3b8ce6..284a5ec 100644
--- a/fs/gfs2/locking/nolock/main.c
+++ b/fs/gfs2/locking/nolock/main.c
@@ -140,7 +140,7 @@
struct nolock_lockspace *nl = lock;
int error = 0;
- *lvbp = kzalloc(nl->nl_lvb_size, GFP_KERNEL);
+ *lvbp = kzalloc(nl->nl_lvb_size, GFP_NOFS);
if (!*lvbp)
error = -ENOMEM;
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 161ab6f..548264b 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -769,8 +769,8 @@
sdp->sd_log_commited_revoke += tr->tr_num_revoke - tr->tr_num_revoke_rm;
gfs2_assert_withdraw(sdp, ((int)sdp->sd_log_commited_revoke) >= 0);
reserved = calc_reserved(sdp);
+ gfs2_assert_withdraw(sdp, sdp->sd_log_blks_reserved + tr->tr_reserved >= reserved);
unused = sdp->sd_log_blks_reserved - reserved + tr->tr_reserved;
- gfs2_assert_withdraw(sdp, unused >= 0);
atomic_add(unused, &sdp->sd_log_blks_free);
gfs2_assert_withdraw(sdp, atomic_read(&sdp->sd_log_blks_free) <=
sdp->sd_jdesc->jd_blocks);
@@ -779,6 +779,21 @@
gfs2_log_unlock(sdp);
}
+static void buf_lo_incore_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
+{
+ struct list_head *head = &tr->tr_list_buf;
+ struct gfs2_bufdata *bd;
+
+ gfs2_log_lock(sdp);
+ while (!list_empty(head)) {
+ bd = list_entry(head->next, struct gfs2_bufdata, bd_list_tr);
+ list_del_init(&bd->bd_list_tr);
+ tr->tr_num_buf--;
+ }
+ gfs2_log_unlock(sdp);
+ gfs2_assert_warn(sdp, !tr->tr_num_buf);
+}
+
/**
* gfs2_log_commit - Commit a transaction to the log
* @sdp: the filesystem
@@ -790,7 +805,7 @@
void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
{
log_refund(sdp, tr);
- lops_incore_commit(sdp, tr);
+ buf_lo_incore_commit(sdp, tr);
sdp->sd_vfs->s_dirt = 1;
up_read(&sdp->sd_log_flush_lock);
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
index fae59d6..4390f6f 100644
--- a/fs/gfs2/lops.c
+++ b/fs/gfs2/lops.c
@@ -152,21 +152,6 @@
unlock_buffer(bd->bd_bh);
}
-static void buf_lo_incore_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
-{
- struct list_head *head = &tr->tr_list_buf;
- struct gfs2_bufdata *bd;
-
- gfs2_log_lock(sdp);
- while (!list_empty(head)) {
- bd = list_entry(head->next, struct gfs2_bufdata, bd_list_tr);
- list_del_init(&bd->bd_list_tr);
- tr->tr_num_buf--;
- }
- gfs2_log_unlock(sdp);
- gfs2_assert_warn(sdp, !tr->tr_num_buf);
-}
-
static void buf_lo_before_commit(struct gfs2_sbd *sdp)
{
struct buffer_head *bh;
@@ -419,8 +404,10 @@
blkno = be64_to_cpu(*(__be64 *)(bh->b_data + offset));
error = gfs2_revoke_add(sdp, blkno, start);
- if (error < 0)
+ if (error < 0) {
+ brelse(bh);
return error;
+ }
else if (error)
sdp->sd_found_revokes++;
@@ -737,7 +724,6 @@
const struct gfs2_log_operations gfs2_buf_lops = {
.lo_add = buf_lo_add,
- .lo_incore_commit = buf_lo_incore_commit,
.lo_before_commit = buf_lo_before_commit,
.lo_after_commit = buf_lo_after_commit,
.lo_before_scan = buf_lo_before_scan,
@@ -763,7 +749,6 @@
const struct gfs2_log_operations gfs2_databuf_lops = {
.lo_add = databuf_lo_add,
- .lo_incore_commit = buf_lo_incore_commit,
.lo_before_commit = databuf_lo_before_commit,
.lo_after_commit = databuf_lo_after_commit,
.lo_scan_elements = databuf_lo_scan_elements,
diff --git a/fs/gfs2/lops.h b/fs/gfs2/lops.h
index 41a00df..3c0b273 100644
--- a/fs/gfs2/lops.h
+++ b/fs/gfs2/lops.h
@@ -1,6 +1,6 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
@@ -57,15 +57,6 @@
le->le_ops->lo_add(sdp, le);
}
-static inline void lops_incore_commit(struct gfs2_sbd *sdp,
- struct gfs2_trans *tr)
-{
- int x;
- for (x = 0; gfs2_log_ops[x]; x++)
- if (gfs2_log_ops[x]->lo_incore_commit)
- gfs2_log_ops[x]->lo_incore_commit(sdp, tr);
-}
-
static inline void lops_before_commit(struct gfs2_sbd *sdp)
{
int x;
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index 9c7765c..053e2eb 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -89,6 +89,12 @@
if (!gfs2_bufdata_cachep)
goto fail;
+ gfs2_rgrpd_cachep = kmem_cache_create("gfs2_rgrpd",
+ sizeof(struct gfs2_rgrpd),
+ 0, 0, NULL);
+ if (!gfs2_rgrpd_cachep)
+ goto fail;
+
error = register_filesystem(&gfs2_fs_type);
if (error)
goto fail;
@@ -108,6 +114,9 @@
fail:
gfs2_glock_exit();
+ if (gfs2_rgrpd_cachep)
+ kmem_cache_destroy(gfs2_rgrpd_cachep);
+
if (gfs2_bufdata_cachep)
kmem_cache_destroy(gfs2_bufdata_cachep);
@@ -133,6 +142,7 @@
unregister_filesystem(&gfs2_fs_type);
unregister_filesystem(&gfs2meta_fs_type);
+ kmem_cache_destroy(gfs2_rgrpd_cachep);
kmem_cache_destroy(gfs2_bufdata_cachep);
kmem_cache_destroy(gfs2_inode_cachep);
kmem_cache_destroy(gfs2_glock_cachep);
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index ac772b6..90a04a6 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -1,6 +1,6 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
@@ -21,7 +21,6 @@
#include <linux/gfs2_ondisk.h>
#include <linux/lm_interface.h>
#include <linux/backing-dev.h>
-#include <linux/pagevec.h>
#include "gfs2.h"
#include "incore.h"
@@ -104,11 +103,9 @@
loff_t i_size = i_size_read(inode);
pgoff_t end_index = i_size >> PAGE_CACHE_SHIFT;
unsigned offset;
- int ret = -EIO;
if (gfs2_assert_withdraw(sdp, gfs2_glock_is_held_excl(ip->i_gl)))
goto out;
- ret = 0;
if (current->journal_info)
goto redirty;
/* Is the page fully outside i_size? (truncate in progress) */
@@ -280,7 +277,7 @@
int i;
int ret;
- ret = gfs2_trans_begin(sdp, nrblocks, 0);
+ ret = gfs2_trans_begin(sdp, nrblocks, nrblocks);
if (ret < 0)
return ret;
@@ -510,23 +507,26 @@
static int gfs2_readpage(struct file *file, struct page *page)
{
struct gfs2_inode *ip = GFS2_I(page->mapping->host);
- struct gfs2_holder gh;
+ struct gfs2_holder *gh;
int error;
- gfs2_holder_init(ip->i_gl, LM_ST_SHARED, GL_ATIME|LM_FLAG_TRY_1CB, &gh);
- error = gfs2_glock_nq_atime(&gh);
- if (unlikely(error)) {
+ gh = gfs2_glock_is_locked_by_me(ip->i_gl);
+ if (!gh) {
+ gh = kmalloc(sizeof(struct gfs2_holder), GFP_NOFS);
+ if (!gh)
+ return -ENOBUFS;
+ gfs2_holder_init(ip->i_gl, LM_ST_SHARED, GL_ATIME, gh);
unlock_page(page);
- goto out;
- }
- error = __gfs2_readpage(file, page);
- gfs2_glock_dq(&gh);
-out:
- gfs2_holder_uninit(&gh);
- if (error == GLR_TRYFAILED) {
- yield();
+ error = gfs2_glock_nq_atime(gh);
+ if (likely(error != 0))
+ goto out;
return AOP_TRUNCATED_PAGE;
}
+ error = __gfs2_readpage(file, page);
+ gfs2_glock_dq(gh);
+out:
+ gfs2_holder_uninit(gh);
+ kfree(gh);
return error;
}
@@ -648,15 +648,15 @@
if (alloc_required) {
al = gfs2_alloc_get(ip);
+ if (!al) {
+ error = -ENOMEM;
+ goto out_unlock;
+ }
- error = gfs2_quota_lock(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
+ error = gfs2_quota_lock_check(ip);
if (error)
goto out_alloc_put;
- error = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid);
- if (error)
- goto out_qunlock;
-
al->al_requested = data_blocks + ind_blocks;
error = gfs2_inplace_reserve(ip);
if (error)
@@ -828,7 +828,7 @@
unsigned int to = from + len;
int ret;
- BUG_ON(gfs2_glock_is_locked_by_me(ip->i_gl) == 0);
+ BUG_ON(gfs2_glock_is_locked_by_me(ip->i_gl) == NULL);
ret = gfs2_meta_inode_buffer(ip, &dibh);
if (unlikely(ret)) {
diff --git a/fs/gfs2/ops_dentry.c b/fs/gfs2/ops_dentry.c
index 793e334..4a5e676 100644
--- a/fs/gfs2/ops_dentry.c
+++ b/fs/gfs2/ops_dentry.c
@@ -43,7 +43,7 @@
struct gfs2_holder d_gh;
struct gfs2_inode *ip = NULL;
int error;
- int had_lock=0;
+ int had_lock = 0;
if (inode) {
if (is_bad_inode(inode))
@@ -54,7 +54,7 @@
if (sdp->sd_args.ar_localcaching)
goto valid;
- had_lock = gfs2_glock_is_locked_by_me(dip->i_gl);
+ had_lock = (gfs2_glock_is_locked_by_me(dip->i_gl) != NULL);
if (!had_lock) {
error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, &d_gh);
if (error)
diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c
index 334c7f8..990d9f4 100644
--- a/fs/gfs2/ops_export.c
+++ b/fs/gfs2/ops_export.c
@@ -204,8 +204,6 @@
inode = gfs2_inode_lookup(sb, DT_UNKNOWN,
inum->no_addr,
0, 0);
- if (!inode)
- goto fail;
if (IS_ERR(inode)) {
error = PTR_ERR(inode);
goto fail;
diff --git a/fs/gfs2/ops_file.c b/fs/gfs2/ops_file.c
index f4842f2..e1b7d52 100644
--- a/fs/gfs2/ops_file.c
+++ b/fs/gfs2/ops_file.c
@@ -30,7 +30,6 @@
#include "glock.h"
#include "glops.h"
#include "inode.h"
-#include "lm.h"
#include "log.h"
#include "meta_io.h"
#include "quota.h"
@@ -39,6 +38,7 @@
#include "util.h"
#include "eaops.h"
#include "ops_address.h"
+#include "ops_inode.h"
/**
* gfs2_llseek - seek to a location in a file
@@ -369,12 +369,9 @@
if (al == NULL)
goto out_unlock;
- ret = gfs2_quota_lock(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
+ ret = gfs2_quota_lock_check(ip);
if (ret)
goto out_alloc_put;
- ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid);
- if (ret)
- goto out_quota_unlock;
al->al_requested = data_blocks + ind_blocks;
ret = gfs2_inplace_reserve(ip);
if (ret)
@@ -596,6 +593,36 @@
return generic_setlease(file, arg, fl);
}
+static int gfs2_lm_plock_get(struct gfs2_sbd *sdp, struct lm_lockname *name,
+ struct file *file, struct file_lock *fl)
+{
+ int error = -EIO;
+ if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+ error = sdp->sd_lockstruct.ls_ops->lm_plock_get(
+ sdp->sd_lockstruct.ls_lockspace, name, file, fl);
+ return error;
+}
+
+static int gfs2_lm_plock(struct gfs2_sbd *sdp, struct lm_lockname *name,
+ struct file *file, int cmd, struct file_lock *fl)
+{
+ int error = -EIO;
+ if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+ error = sdp->sd_lockstruct.ls_ops->lm_plock(
+ sdp->sd_lockstruct.ls_lockspace, name, file, cmd, fl);
+ return error;
+}
+
+static int gfs2_lm_punlock(struct gfs2_sbd *sdp, struct lm_lockname *name,
+ struct file *file, struct file_lock *fl)
+{
+ int error = -EIO;
+ if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+ error = sdp->sd_lockstruct.ls_ops->lm_punlock(
+ sdp->sd_lockstruct.ls_lockspace, name, file, fl);
+ return error;
+}
+
/**
* gfs2_lock - acquire/release a posix lock on a file
* @file: the file pointer
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 4bee6aa..ef9c6c4 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -1,6 +1,6 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
@@ -26,7 +26,6 @@
#include "glock.h"
#include "glops.h"
#include "inode.h"
-#include "lm.h"
#include "mount.h"
#include "ops_fstype.h"
#include "ops_dentry.h"
@@ -363,6 +362,13 @@
return rc;
}
+static void gfs2_lm_others_may_mount(struct gfs2_sbd *sdp)
+{
+ if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+ sdp->sd_lockstruct.ls_ops->lm_others_may_mount(
+ sdp->sd_lockstruct.ls_lockspace);
+}
+
static int init_journal(struct gfs2_sbd *sdp, int undo)
{
struct gfs2_holder ji_gh;
@@ -542,7 +548,7 @@
}
ip = GFS2_I(sdp->sd_rindex);
set_bit(GLF_STICKY, &ip->i_gl->gl_flags);
- sdp->sd_rindex_vn = ip->i_gl->gl_vn - 1;
+ sdp->sd_rindex_uptodate = 0;
/* Read in the quota inode */
sdp->sd_quota_inode = gfs2_lookup_simple(sdp->sd_master_dir, "quota");
@@ -705,6 +711,69 @@
}
/**
+ * gfs2_lm_mount - mount a locking protocol
+ * @sdp: the filesystem
+ * @args: mount arguements
+ * @silent: if 1, don't complain if the FS isn't a GFS2 fs
+ *
+ * Returns: errno
+ */
+
+static int gfs2_lm_mount(struct gfs2_sbd *sdp, int silent)
+{
+ char *proto = sdp->sd_proto_name;
+ char *table = sdp->sd_table_name;
+ int flags = LM_MFLAG_CONV_NODROP;
+ int error;
+
+ if (sdp->sd_args.ar_spectator)
+ flags |= LM_MFLAG_SPECTATOR;
+
+ fs_info(sdp, "Trying to join cluster \"%s\", \"%s\"\n", proto, table);
+
+ error = gfs2_mount_lockproto(proto, table, sdp->sd_args.ar_hostdata,
+ gfs2_glock_cb, sdp,
+ GFS2_MIN_LVB_SIZE, flags,
+ &sdp->sd_lockstruct, &sdp->sd_kobj);
+ if (error) {
+ fs_info(sdp, "can't mount proto=%s, table=%s, hostdata=%s\n",
+ proto, table, sdp->sd_args.ar_hostdata);
+ goto out;
+ }
+
+ if (gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_lockspace) ||
+ gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_ops) ||
+ gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_lvb_size >=
+ GFS2_MIN_LVB_SIZE)) {
+ gfs2_unmount_lockproto(&sdp->sd_lockstruct);
+ goto out;
+ }
+
+ if (sdp->sd_args.ar_spectator)
+ snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s.s", table);
+ else
+ snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s.%u", table,
+ sdp->sd_lockstruct.ls_jid);
+
+ fs_info(sdp, "Joined cluster. Now mounting FS...\n");
+
+ if ((sdp->sd_lockstruct.ls_flags & LM_LSFLAG_LOCAL) &&
+ !sdp->sd_args.ar_ignore_local_fs) {
+ sdp->sd_args.ar_localflocks = 1;
+ sdp->sd_args.ar_localcaching = 1;
+ }
+
+out:
+ return error;
+}
+
+void gfs2_lm_unmount(struct gfs2_sbd *sdp)
+{
+ if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+ gfs2_unmount_lockproto(&sdp->sd_lockstruct);
+}
+
+/**
* fill_super - Read in superblock
* @sb: The VFS superblock
* @data: Mount options
@@ -874,7 +943,6 @@
{
struct kstat stat;
struct nameidata nd;
- struct file_system_type *fstype;
struct super_block *sb = NULL, *s;
int error;
@@ -886,8 +954,7 @@
}
error = vfs_getattr(nd.path.mnt, nd.path.dentry, &stat);
- fstype = get_fs_type("gfs2");
- list_for_each_entry(s, &fstype->fs_supers, s_instances) {
+ list_for_each_entry(s, &gfs2_fs_type.fs_supers, s_instances) {
if ((S_ISBLK(stat.mode) && s->s_dev == stat.rdev) ||
(S_ISDIR(stat.mode) &&
s == nd.path.dentry->d_inode->i_sb)) {
@@ -931,7 +998,6 @@
error = PTR_ERR(new);
goto error;
}
- module_put(fs_type->owner);
new->s_flags = flags;
strlcpy(new->s_id, sb->s_id, sizeof(new->s_id));
sb_set_blocksize(new, sb->s_blocksize);
diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index e874129..2686ad4 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -200,15 +200,15 @@
if (alloc_required) {
struct gfs2_alloc *al = gfs2_alloc_get(dip);
+ if (!al) {
+ error = -ENOMEM;
+ goto out_gunlock;
+ }
- error = gfs2_quota_lock(dip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
+ error = gfs2_quota_lock_check(dip);
if (error)
goto out_alloc;
- error = gfs2_quota_check(dip, dip->i_inode.i_uid, dip->i_inode.i_gid);
- if (error)
- goto out_gunlock_q;
-
al->al_requested = sdp->sd_max_dirres;
error = gfs2_inplace_reserve(dip);
@@ -716,15 +716,15 @@
if (alloc_required) {
struct gfs2_alloc *al = gfs2_alloc_get(ndip);
+ if (!al) {
+ error = -ENOMEM;
+ goto out_gunlock;
+ }
- error = gfs2_quota_lock(ndip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
+ error = gfs2_quota_lock_check(ndip);
if (error)
goto out_alloc;
- error = gfs2_quota_check(ndip, ndip->i_inode.i_uid, ndip->i_inode.i_gid);
- if (error)
- goto out_gunlock_q;
-
al->al_requested = sdp->sd_max_dirres;
error = gfs2_inplace_reserve(ndip);
@@ -898,7 +898,7 @@
int error;
int unlock = 0;
- if (gfs2_glock_is_locked_by_me(ip->i_gl) == 0) {
+ if (gfs2_glock_is_locked_by_me(ip->i_gl) == NULL) {
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh);
if (error)
return error;
@@ -953,7 +953,8 @@
if (!(attr->ia_valid & ATTR_GID) || ogid == ngid)
ogid = ngid = NO_QUOTA_CHANGE;
- gfs2_alloc_get(ip);
+ if (!gfs2_alloc_get(ip))
+ return -ENOMEM;
error = gfs2_quota_lock(ip, nuid, ngid);
if (error)
@@ -981,8 +982,9 @@
brelse(dibh);
if (ouid != NO_QUOTA_CHANGE || ogid != NO_QUOTA_CHANGE) {
- gfs2_quota_change(ip, -ip->i_di.di_blocks, ouid, ogid);
- gfs2_quota_change(ip, ip->i_di.di_blocks, nuid, ngid);
+ u64 blocks = gfs2_get_inode_blocks(&ip->i_inode);
+ gfs2_quota_change(ip, -blocks, ouid, ogid);
+ gfs2_quota_change(ip, blocks, nuid, ngid);
}
out_end_trans:
@@ -1064,7 +1066,7 @@
int error;
int unlock = 0;
- if (gfs2_glock_is_locked_by_me(ip->i_gl) == 0) {
+ if (gfs2_glock_is_locked_by_me(ip->i_gl) == NULL) {
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh);
if (error)
return error;
@@ -1148,16 +1150,6 @@
.removexattr = gfs2_removexattr,
};
-const struct inode_operations gfs2_dev_iops = {
- .permission = gfs2_permission,
- .setattr = gfs2_setattr,
- .getattr = gfs2_getattr,
- .setxattr = gfs2_setxattr,
- .getxattr = gfs2_getxattr,
- .listxattr = gfs2_listxattr,
- .removexattr = gfs2_removexattr,
-};
-
const struct inode_operations gfs2_dir_iops = {
.create = gfs2_create,
.lookup = gfs2_lookup,
diff --git a/fs/gfs2/ops_inode.h b/fs/gfs2/ops_inode.h
index fd8cee2..14b4b79 100644
--- a/fs/gfs2/ops_inode.h
+++ b/fs/gfs2/ops_inode.h
@@ -15,7 +15,6 @@
extern const struct inode_operations gfs2_file_iops;
extern const struct inode_operations gfs2_dir_iops;
extern const struct inode_operations gfs2_symlink_iops;
-extern const struct inode_operations gfs2_dev_iops;
extern const struct file_operations gfs2_file_fops;
extern const struct file_operations gfs2_dir_fops;
extern const struct file_operations gfs2_file_fops_nolock;
diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c
index 5e52421..2278c68 100644
--- a/fs/gfs2/ops_super.c
+++ b/fs/gfs2/ops_super.c
@@ -25,7 +25,6 @@
#include "incore.h"
#include "glock.h"
#include "inode.h"
-#include "lm.h"
#include "log.h"
#include "mount.h"
#include "ops_super.h"
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index a08dabd..56aaf91 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -94,7 +94,7 @@
struct gfs2_quota_data *qd;
int error;
- qd = kzalloc(sizeof(struct gfs2_quota_data), GFP_KERNEL);
+ qd = kzalloc(sizeof(struct gfs2_quota_data), GFP_NOFS);
if (!qd)
return -ENOMEM;
@@ -616,16 +616,9 @@
s64 value;
int err = -EIO;
- if (gfs2_is_stuffed(ip)) {
- struct gfs2_alloc *al = NULL;
- al = gfs2_alloc_get(ip);
- /* just request 1 blk */
- al->al_requested = 1;
- gfs2_inplace_reserve(ip);
+ if (gfs2_is_stuffed(ip))
gfs2_unstuff_dinode(ip, NULL);
- gfs2_inplace_release(ip);
- gfs2_alloc_put(ip);
- }
+
page = grab_cache_page(mapping, index);
if (!page)
return -ENOMEM;
@@ -690,14 +683,14 @@
unsigned int qx, x;
struct gfs2_quota_data *qd;
loff_t offset;
- unsigned int nalloc = 0;
+ unsigned int nalloc = 0, blocks;
struct gfs2_alloc *al = NULL;
int error;
gfs2_write_calc_reserv(ip, sizeof(struct gfs2_quota),
&data_blocks, &ind_blocks);
- ghs = kcalloc(num_qd, sizeof(struct gfs2_holder), GFP_KERNEL);
+ ghs = kcalloc(num_qd, sizeof(struct gfs2_holder), GFP_NOFS);
if (!ghs)
return -ENOMEM;
@@ -727,30 +720,33 @@
nalloc++;
}
- if (nalloc) {
- al = gfs2_alloc_get(ip);
-
- al->al_requested = nalloc * (data_blocks + ind_blocks);
-
- error = gfs2_inplace_reserve(ip);
- if (error)
- goto out_alloc;
-
- error = gfs2_trans_begin(sdp,
- al->al_rgd->rd_length +
- num_qd * data_blocks +
- nalloc * ind_blocks +
- RES_DINODE + num_qd +
- RES_STATFS, 0);
- if (error)
- goto out_ipres;
- } else {
- error = gfs2_trans_begin(sdp,
- num_qd * data_blocks +
- RES_DINODE + num_qd, 0);
- if (error)
- goto out_gunlock;
+ al = gfs2_alloc_get(ip);
+ if (!al) {
+ error = -ENOMEM;
+ goto out_gunlock;
}
+ /*
+ * 1 blk for unstuffing inode if stuffed. We add this extra
+ * block to the reservation unconditionally. If the inode
+ * doesn't need unstuffing, the block will be released to the
+ * rgrp since it won't be allocated during the transaction
+ */
+ al->al_requested = 1;
+ /* +1 in the end for block requested above for unstuffing */
+ blocks = num_qd * data_blocks + RES_DINODE + num_qd + 1;
+
+ if (nalloc)
+ al->al_requested += nalloc * (data_blocks + ind_blocks);
+ error = gfs2_inplace_reserve(ip);
+ if (error)
+ goto out_alloc;
+
+ if (nalloc)
+ blocks += al->al_rgd->rd_length + nalloc * ind_blocks + RES_STATFS;
+
+ error = gfs2_trans_begin(sdp, blocks, 0);
+ if (error)
+ goto out_ipres;
for (x = 0; x < num_qd; x++) {
qd = qda[x];
@@ -769,11 +765,9 @@
out_end_trans:
gfs2_trans_end(sdp);
out_ipres:
- if (nalloc)
- gfs2_inplace_release(ip);
+ gfs2_inplace_release(ip);
out_alloc:
- if (nalloc)
- gfs2_alloc_put(ip);
+ gfs2_alloc_put(ip);
out_gunlock:
gfs2_glock_dq_uninit(&i_gh);
out:
@@ -1124,12 +1118,12 @@
error = -ENOMEM;
sdp->sd_quota_bitmap = kcalloc(sdp->sd_quota_chunks,
- sizeof(unsigned char *), GFP_KERNEL);
+ sizeof(unsigned char *), GFP_NOFS);
if (!sdp->sd_quota_bitmap)
return error;
for (x = 0; x < sdp->sd_quota_chunks; x++) {
- sdp->sd_quota_bitmap[x] = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ sdp->sd_quota_bitmap[x] = kzalloc(PAGE_SIZE, GFP_NOFS);
if (!sdp->sd_quota_bitmap[x])
goto fail;
}
diff --git a/fs/gfs2/quota.h b/fs/gfs2/quota.h
index a8be141..3b7f4b0 100644
--- a/fs/gfs2/quota.h
+++ b/fs/gfs2/quota.h
@@ -32,4 +32,21 @@
void gfs2_quota_scan(struct gfs2_sbd *sdp);
void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
+static inline int gfs2_quota_lock_check(struct gfs2_inode *ip)
+{
+ struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+ int ret;
+ if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
+ return 0;
+ ret = gfs2_quota_lock(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
+ if (ret)
+ return ret;
+ if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
+ return 0;
+ ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid);
+ if (ret)
+ gfs2_quota_unlock(ip);
+ return ret;
+}
+
#endif /* __QUOTA_DOT_H__ */
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index 6fb07d6..2888e4b 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -20,7 +20,6 @@
#include "bmap.h"
#include "glock.h"
#include "glops.h"
-#include "lm.h"
#include "lops.h"
#include "meta_io.h"
#include "recovery.h"
@@ -69,7 +68,7 @@
return 0;
}
- rr = kmalloc(sizeof(struct gfs2_revoke_replay), GFP_KERNEL);
+ rr = kmalloc(sizeof(struct gfs2_revoke_replay), GFP_NOFS);
if (!rr)
return -ENOMEM;
@@ -150,7 +149,7 @@
struct gfs2_log_header_host *head)
{
struct buffer_head *bh;
- struct gfs2_log_header_host lh;
+ struct gfs2_log_header_host uninitialized_var(lh);
const u32 nothing = 0;
u32 hash;
int error;
@@ -425,6 +424,16 @@
return error;
}
+
+static void gfs2_lm_recovery_done(struct gfs2_sbd *sdp, unsigned int jid,
+ unsigned int message)
+{
+ if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+ sdp->sd_lockstruct.ls_ops->lm_recovery_done(
+ sdp->sd_lockstruct.ls_lockspace, jid, message);
+}
+
+
/**
* gfs2_recover_journal - recovery a given journal
* @jd: the struct gfs2_jdesc describing the journal
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 3552110..7e8f0b1 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1,6 +1,6 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
@@ -14,6 +14,7 @@
#include <linux/fs.h>
#include <linux/gfs2_ondisk.h>
#include <linux/lm_interface.h>
+#include <linux/prefetch.h>
#include "gfs2.h"
#include "incore.h"
@@ -33,6 +34,16 @@
#define BFITNOENT ((u32)~0)
#define NO_BLOCK ((u64)~0)
+#if BITS_PER_LONG == 32
+#define LBITMASK (0x55555555UL)
+#define LBITSKIP55 (0x55555555UL)
+#define LBITSKIP00 (0x00000000UL)
+#else
+#define LBITMASK (0x5555555555555555UL)
+#define LBITSKIP55 (0x5555555555555555UL)
+#define LBITSKIP00 (0x0000000000000000UL)
+#endif
+
/*
* These routines are used by the resource group routines (rgrp.c)
* to keep track of block allocation. Each block is represented by two
@@ -53,7 +64,8 @@
};
static u32 rgblk_search(struct gfs2_rgrpd *rgd, u32 goal,
- unsigned char old_state, unsigned char new_state);
+ unsigned char old_state, unsigned char new_state,
+ unsigned int *n);
/**
* gfs2_setbit - Set a bit in the bitmaps
@@ -64,26 +76,32 @@
*
*/
-static void gfs2_setbit(struct gfs2_rgrpd *rgd, unsigned char *buffer,
- unsigned int buflen, u32 block,
- unsigned char new_state)
+static inline void gfs2_setbit(struct gfs2_rgrpd *rgd, unsigned char *buf1,
+ unsigned char *buf2, unsigned int offset,
+ unsigned int buflen, u32 block,
+ unsigned char new_state)
{
- unsigned char *byte, *end, cur_state;
- unsigned int bit;
+ unsigned char *byte1, *byte2, *end, cur_state;
+ const unsigned int bit = (block % GFS2_NBBY) * GFS2_BIT_SIZE;
- byte = buffer + (block / GFS2_NBBY);
- bit = (block % GFS2_NBBY) * GFS2_BIT_SIZE;
- end = buffer + buflen;
+ byte1 = buf1 + offset + (block / GFS2_NBBY);
+ end = buf1 + offset + buflen;
- gfs2_assert(rgd->rd_sbd, byte < end);
+ BUG_ON(byte1 >= end);
- cur_state = (*byte >> bit) & GFS2_BIT_MASK;
+ cur_state = (*byte1 >> bit) & GFS2_BIT_MASK;
- if (valid_change[new_state * 4 + cur_state]) {
- *byte ^= cur_state << bit;
- *byte |= new_state << bit;
- } else
+ if (unlikely(!valid_change[new_state * 4 + cur_state])) {
gfs2_consist_rgrpd(rgd);
+ return;
+ }
+ *byte1 ^= (cur_state ^ new_state) << bit;
+
+ if (buf2) {
+ byte2 = buf2 + offset + (block / GFS2_NBBY);
+ cur_state = (*byte2 >> bit) & GFS2_BIT_MASK;
+ *byte2 ^= (cur_state ^ new_state) << bit;
+ }
}
/**
@@ -94,10 +112,12 @@
*
*/
-static unsigned char gfs2_testbit(struct gfs2_rgrpd *rgd, unsigned char *buffer,
- unsigned int buflen, u32 block)
+static inline unsigned char gfs2_testbit(struct gfs2_rgrpd *rgd,
+ const unsigned char *buffer,
+ unsigned int buflen, u32 block)
{
- unsigned char *byte, *end, cur_state;
+ const unsigned char *byte, *end;
+ unsigned char cur_state;
unsigned int bit;
byte = buffer + (block / GFS2_NBBY);
@@ -126,47 +146,66 @@
* Return: the block number (bitmap buffer scope) that was found
*/
-static u32 gfs2_bitfit(unsigned char *buffer, unsigned int buflen, u32 goal,
- unsigned char old_state)
+static u32 gfs2_bitfit(const u8 *buffer, unsigned int buflen, u32 goal,
+ u8 old_state)
{
- unsigned char *byte;
- u32 blk = goal;
- unsigned int bit, bitlong;
- unsigned long *plong, plong55;
+ const u8 *byte, *start, *end;
+ int bit, startbit;
+ u32 g1, g2, misaligned;
+ unsigned long *plong;
+ unsigned long lskipval;
- byte = buffer + (goal / GFS2_NBBY);
- plong = (unsigned long *)(buffer + (goal / GFS2_NBBY));
- bit = (goal % GFS2_NBBY) * GFS2_BIT_SIZE;
- bitlong = bit;
-#if BITS_PER_LONG == 32
- plong55 = 0x55555555;
-#else
- plong55 = 0x5555555555555555;
-#endif
- while (byte < buffer + buflen) {
-
- if (bitlong == 0 && old_state == 0 && *plong == plong55) {
- plong++;
- byte += sizeof(unsigned long);
- blk += sizeof(unsigned long) * GFS2_NBBY;
- continue;
+ lskipval = (old_state & GFS2_BLKST_USED) ? LBITSKIP00 : LBITSKIP55;
+ g1 = (goal / GFS2_NBBY);
+ start = buffer + g1;
+ byte = start;
+ end = buffer + buflen;
+ g2 = ALIGN(g1, sizeof(unsigned long));
+ plong = (unsigned long *)(buffer + g2);
+ startbit = bit = (goal % GFS2_NBBY) * GFS2_BIT_SIZE;
+ misaligned = g2 - g1;
+ if (!misaligned)
+ goto ulong_aligned;
+/* parse the bitmap a byte at a time */
+misaligned:
+ while (byte < end) {
+ if (((*byte >> bit) & GFS2_BIT_MASK) == old_state) {
+ return goal +
+ (((byte - start) * GFS2_NBBY) +
+ ((bit - startbit) >> 1));
}
- if (((*byte >> bit) & GFS2_BIT_MASK) == old_state)
- return blk;
bit += GFS2_BIT_SIZE;
- if (bit >= 8) {
+ if (bit >= GFS2_NBBY * GFS2_BIT_SIZE) {
bit = 0;
byte++;
+ misaligned--;
+ if (!misaligned) {
+ plong = (unsigned long *)byte;
+ goto ulong_aligned;
+ }
}
- bitlong += GFS2_BIT_SIZE;
- if (bitlong >= sizeof(unsigned long) * 8) {
- bitlong = 0;
- plong++;
- }
-
- blk++;
}
+ return BFITNOENT;
+/* parse the bitmap a unsigned long at a time */
+ulong_aligned:
+ /* Stop at "end - 1" or else prefetch can go past the end and segfault.
+ We could "if" it but we'd lose some of the performance gained.
+ This way will only slow down searching the very last 4/8 bytes
+ depending on architecture. I've experimented with several ways
+ of writing this section such as using an else before the goto
+ but this one seems to be the fastest. */
+ while ((unsigned char *)plong < end - 1) {
+ prefetch(plong + 1);
+ if (((*plong) & LBITMASK) != lskipval)
+ break;
+ plong++;
+ }
+ if ((unsigned char *)plong < end) {
+ byte = (const u8 *)plong;
+ misaligned += sizeof(unsigned long) - 1;
+ goto misaligned;
+ }
return BFITNOENT;
}
@@ -179,14 +218,14 @@
* Returns: The number of bits
*/
-static u32 gfs2_bitcount(struct gfs2_rgrpd *rgd, unsigned char *buffer,
- unsigned int buflen, unsigned char state)
+static u32 gfs2_bitcount(struct gfs2_rgrpd *rgd, const u8 *buffer,
+ unsigned int buflen, u8 state)
{
- unsigned char *byte = buffer;
- unsigned char *end = buffer + buflen;
- unsigned char state1 = state << 2;
- unsigned char state2 = state << 4;
- unsigned char state3 = state << 6;
+ const u8 *byte = buffer;
+ const u8 *end = buffer + buflen;
+ const u8 state1 = state << 2;
+ const u8 state2 = state << 4;
+ const u8 state3 = state << 6;
u32 count = 0;
for (; byte < end; byte++) {
@@ -353,7 +392,7 @@
}
kfree(rgd->rd_bits);
- kfree(rgd);
+ kmem_cache_free(gfs2_rgrpd_cachep, rgd);
}
}
@@ -516,7 +555,7 @@
return error;
}
- rgd = kzalloc(sizeof(struct gfs2_rgrpd), GFP_NOFS);
+ rgd = kmem_cache_zalloc(gfs2_rgrpd_cachep, GFP_NOFS);
error = -ENOMEM;
if (!rgd)
return error;
@@ -539,7 +578,7 @@
return error;
rgd->rd_gl->gl_object = rgd;
- rgd->rd_rg_vn = rgd->rd_gl->gl_vn - 1;
+ rgd->rd_flags &= ~GFS2_RDF_UPTODATE;
rgd->rd_flags |= GFS2_RDF_CHECK;
return error;
}
@@ -575,7 +614,7 @@
}
}
- sdp->sd_rindex_vn = ip->i_gl->gl_vn;
+ sdp->sd_rindex_uptodate = 1;
return 0;
}
@@ -609,7 +648,7 @@
}
}
- sdp->sd_rindex_vn = ip->i_gl->gl_vn;
+ sdp->sd_rindex_uptodate = 1;
return 0;
}
@@ -642,9 +681,9 @@
return error;
/* Read new copy from disk if we don't have the latest */
- if (sdp->sd_rindex_vn != gl->gl_vn) {
+ if (!sdp->sd_rindex_uptodate) {
mutex_lock(&sdp->sd_rindex_mutex);
- if (sdp->sd_rindex_vn != gl->gl_vn) {
+ if (!sdp->sd_rindex_uptodate) {
error = gfs2_ri_update(ip);
if (error)
gfs2_glock_dq_uninit(ri_gh);
@@ -655,21 +694,31 @@
return error;
}
-static void gfs2_rgrp_in(struct gfs2_rgrp_host *rg, const void *buf)
+static void gfs2_rgrp_in(struct gfs2_rgrpd *rgd, const void *buf)
{
const struct gfs2_rgrp *str = buf;
+ struct gfs2_rgrp_host *rg = &rgd->rd_rg;
+ u32 rg_flags;
- rg->rg_flags = be32_to_cpu(str->rg_flags);
+ rg_flags = be32_to_cpu(str->rg_flags);
+ if (rg_flags & GFS2_RGF_NOALLOC)
+ rgd->rd_flags |= GFS2_RDF_NOALLOC;
+ else
+ rgd->rd_flags &= ~GFS2_RDF_NOALLOC;
rg->rg_free = be32_to_cpu(str->rg_free);
rg->rg_dinodes = be32_to_cpu(str->rg_dinodes);
rg->rg_igeneration = be64_to_cpu(str->rg_igeneration);
}
-static void gfs2_rgrp_out(const struct gfs2_rgrp_host *rg, void *buf)
+static void gfs2_rgrp_out(struct gfs2_rgrpd *rgd, void *buf)
{
struct gfs2_rgrp *str = buf;
+ struct gfs2_rgrp_host *rg = &rgd->rd_rg;
+ u32 rg_flags = 0;
- str->rg_flags = cpu_to_be32(rg->rg_flags);
+ if (rgd->rd_flags & GFS2_RDF_NOALLOC)
+ rg_flags |= GFS2_RGF_NOALLOC;
+ str->rg_flags = cpu_to_be32(rg_flags);
str->rg_free = cpu_to_be32(rg->rg_free);
str->rg_dinodes = cpu_to_be32(rg->rg_dinodes);
str->__pad = cpu_to_be32(0);
@@ -726,9 +775,9 @@
}
}
- if (rgd->rd_rg_vn != gl->gl_vn) {
- gfs2_rgrp_in(&rgd->rd_rg, (rgd->rd_bits[0].bi_bh)->b_data);
- rgd->rd_rg_vn = gl->gl_vn;
+ if (!(rgd->rd_flags & GFS2_RDF_UPTODATE)) {
+ gfs2_rgrp_in(rgd, (rgd->rd_bits[0].bi_bh)->b_data);
+ rgd->rd_flags |= GFS2_RDF_UPTODATE;
}
spin_lock(&sdp->sd_rindex_spin);
@@ -840,7 +889,7 @@
struct gfs2_sbd *sdp = rgd->rd_sbd;
int ret = 0;
- if (rgd->rd_rg.rg_flags & GFS2_RGF_NOALLOC)
+ if (rgd->rd_flags & GFS2_RDF_NOALLOC)
return 0;
spin_lock(&sdp->sd_rindex_spin);
@@ -866,13 +915,15 @@
u32 goal = 0, block;
u64 no_addr;
struct gfs2_sbd *sdp = rgd->rd_sbd;
+ unsigned int n;
for(;;) {
if (goal >= rgd->rd_data)
break;
down_write(&sdp->sd_log_flush_lock);
+ n = 1;
block = rgblk_search(rgd, goal, GFS2_BLKST_UNLINKED,
- GFS2_BLKST_UNLINKED);
+ GFS2_BLKST_UNLINKED, &n);
up_write(&sdp->sd_log_flush_lock);
if (block == BFITNOENT)
break;
@@ -904,24 +955,20 @@
static struct gfs2_rgrpd *recent_rgrp_first(struct gfs2_sbd *sdp,
u64 rglast)
{
- struct gfs2_rgrpd *rgd = NULL;
+ struct gfs2_rgrpd *rgd;
spin_lock(&sdp->sd_rindex_spin);
- if (list_empty(&sdp->sd_rindex_recent_list))
- goto out;
-
- if (!rglast)
- goto first;
-
- list_for_each_entry(rgd, &sdp->sd_rindex_recent_list, rd_recent) {
- if (rgd->rd_addr == rglast)
- goto out;
+ if (rglast) {
+ list_for_each_entry(rgd, &sdp->sd_rindex_recent_list, rd_recent) {
+ if (rgrp_contains_block(rgd, rglast))
+ goto out;
+ }
}
-
-first:
- rgd = list_entry(sdp->sd_rindex_recent_list.next, struct gfs2_rgrpd,
- rd_recent);
+ rgd = NULL;
+ if (!list_empty(&sdp->sd_rindex_recent_list))
+ rgd = list_entry(sdp->sd_rindex_recent_list.next,
+ struct gfs2_rgrpd, rd_recent);
out:
spin_unlock(&sdp->sd_rindex_spin);
return rgd;
@@ -1067,7 +1114,7 @@
/* Try recently successful rgrps */
- rgd = recent_rgrp_first(sdp, ip->i_last_rg_alloc);
+ rgd = recent_rgrp_first(sdp, ip->i_goal);
while (rgd) {
rg_locked = 0;
@@ -1151,8 +1198,6 @@
}
out:
- ip->i_last_rg_alloc = rgd->rd_addr;
-
if (begin) {
recent_rgrp_add(rgd);
rgd = gfs2_rgrpd_get_next(rgd);
@@ -1275,6 +1320,7 @@
* @goal: the goal block within the RG (start here to search for avail block)
* @old_state: GFS2_BLKST_XXX the before-allocation state to find
* @new_state: GFS2_BLKST_XXX the after-allocation block state
+ * @n: The extent length
*
* Walk rgrp's bitmap to find bits that represent a block in @old_state.
* Add the found bitmap buffer to the transaction.
@@ -1290,13 +1336,17 @@
*/
static u32 rgblk_search(struct gfs2_rgrpd *rgd, u32 goal,
- unsigned char old_state, unsigned char new_state)
+ unsigned char old_state, unsigned char new_state,
+ unsigned int *n)
{
struct gfs2_bitmap *bi = NULL;
- u32 length = rgd->rd_length;
+ const u32 length = rgd->rd_length;
u32 blk = 0;
unsigned int buf, x;
+ const unsigned int elen = *n;
+ const u8 *buffer;
+ *n = 0;
/* Find bitmap block that contains bits for goal block */
for (buf = 0; buf < length; buf++) {
bi = rgd->rd_bits + buf;
@@ -1317,12 +1367,11 @@
for (x = 0; x <= length; x++) {
/* The GFS2_BLKST_UNLINKED state doesn't apply to the clone
bitmaps, so we must search the originals for that. */
+ buffer = bi->bi_bh->b_data + bi->bi_offset;
if (old_state != GFS2_BLKST_UNLINKED && bi->bi_clone)
- blk = gfs2_bitfit(bi->bi_clone + bi->bi_offset,
- bi->bi_len, goal, old_state);
- else
- blk = gfs2_bitfit(bi->bi_bh->b_data + bi->bi_offset,
- bi->bi_len, goal, old_state);
+ buffer = bi->bi_clone + bi->bi_offset;
+
+ blk = gfs2_bitfit(buffer, bi->bi_len, goal, old_state);
if (blk != BFITNOENT)
break;
@@ -1333,12 +1382,23 @@
}
if (blk != BFITNOENT && old_state != new_state) {
+ *n = 1;
gfs2_trans_add_bh(rgd->rd_gl, bi->bi_bh, 1);
- gfs2_setbit(rgd, bi->bi_bh->b_data + bi->bi_offset,
+ gfs2_setbit(rgd, bi->bi_bh->b_data, bi->bi_clone, bi->bi_offset,
bi->bi_len, blk, new_state);
- if (bi->bi_clone)
- gfs2_setbit(rgd, bi->bi_clone + bi->bi_offset,
- bi->bi_len, blk, new_state);
+ goal = blk;
+ while (*n < elen) {
+ goal++;
+ if (goal >= (bi->bi_len * GFS2_NBBY))
+ break;
+ if (gfs2_testbit(rgd, buffer, bi->bi_len, goal) !=
+ GFS2_BLKST_FREE)
+ break;
+ gfs2_setbit(rgd, bi->bi_bh->b_data, bi->bi_clone,
+ bi->bi_offset, bi->bi_len, goal,
+ new_state);
+ (*n)++;
+ }
}
return (blk == BFITNOENT) ? blk : (bi->bi_start * GFS2_NBBY) + blk;
@@ -1393,7 +1453,7 @@
bi->bi_len);
}
gfs2_trans_add_bh(rgd->rd_gl, bi->bi_bh, 1);
- gfs2_setbit(rgd, bi->bi_bh->b_data + bi->bi_offset,
+ gfs2_setbit(rgd, bi->bi_bh->b_data, NULL, bi->bi_offset,
bi->bi_len, buf_blk, new_state);
}
@@ -1401,13 +1461,13 @@
}
/**
- * gfs2_alloc_data - Allocate a data block
- * @ip: the inode to allocate the data block for
+ * gfs2_alloc_block - Allocate a block
+ * @ip: the inode to allocate the block for
*
* Returns: the allocated block
*/
-u64 gfs2_alloc_data(struct gfs2_inode *ip)
+u64 gfs2_alloc_block(struct gfs2_inode *ip, unsigned int *n)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct gfs2_alloc *al = ip->i_alloc;
@@ -1415,77 +1475,31 @@
u32 goal, blk;
u64 block;
- if (rgrp_contains_block(rgd, ip->i_di.di_goal_data))
- goal = ip->i_di.di_goal_data - rgd->rd_data0;
+ if (rgrp_contains_block(rgd, ip->i_goal))
+ goal = ip->i_goal - rgd->rd_data0;
else
- goal = rgd->rd_last_alloc_data;
+ goal = rgd->rd_last_alloc;
- blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, GFS2_BLKST_USED);
+ blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, GFS2_BLKST_USED, n);
BUG_ON(blk == BFITNOENT);
- rgd->rd_last_alloc_data = blk;
+ rgd->rd_last_alloc = blk;
block = rgd->rd_data0 + blk;
- ip->i_di.di_goal_data = block;
+ ip->i_goal = block;
- gfs2_assert_withdraw(sdp, rgd->rd_rg.rg_free);
- rgd->rd_rg.rg_free--;
+ gfs2_assert_withdraw(sdp, rgd->rd_rg.rg_free >= *n);
+ rgd->rd_rg.rg_free -= *n;
gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
- gfs2_rgrp_out(&rgd->rd_rg, rgd->rd_bits[0].bi_bh->b_data);
+ gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
- al->al_alloced++;
+ al->al_alloced += *n;
- gfs2_statfs_change(sdp, 0, -1, 0);
- gfs2_quota_change(ip, +1, ip->i_inode.i_uid, ip->i_inode.i_gid);
+ gfs2_statfs_change(sdp, 0, -*n, 0);
+ gfs2_quota_change(ip, *n, ip->i_inode.i_uid, ip->i_inode.i_gid);
spin_lock(&sdp->sd_rindex_spin);
- rgd->rd_free_clone--;
- spin_unlock(&sdp->sd_rindex_spin);
-
- return block;
-}
-
-/**
- * gfs2_alloc_meta - Allocate a metadata block
- * @ip: the inode to allocate the metadata block for
- *
- * Returns: the allocated block
- */
-
-u64 gfs2_alloc_meta(struct gfs2_inode *ip)
-{
- struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
- struct gfs2_alloc *al = ip->i_alloc;
- struct gfs2_rgrpd *rgd = al->al_rgd;
- u32 goal, blk;
- u64 block;
-
- if (rgrp_contains_block(rgd, ip->i_di.di_goal_meta))
- goal = ip->i_di.di_goal_meta - rgd->rd_data0;
- else
- goal = rgd->rd_last_alloc_meta;
-
- blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, GFS2_BLKST_USED);
- BUG_ON(blk == BFITNOENT);
- rgd->rd_last_alloc_meta = blk;
-
- block = rgd->rd_data0 + blk;
- ip->i_di.di_goal_meta = block;
-
- gfs2_assert_withdraw(sdp, rgd->rd_rg.rg_free);
- rgd->rd_rg.rg_free--;
-
- gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
- gfs2_rgrp_out(&rgd->rd_rg, rgd->rd_bits[0].bi_bh->b_data);
-
- al->al_alloced++;
-
- gfs2_statfs_change(sdp, 0, -1, 0);
- gfs2_quota_change(ip, +1, ip->i_inode.i_uid, ip->i_inode.i_gid);
- gfs2_trans_add_unrevoke(sdp, block);
-
- spin_lock(&sdp->sd_rindex_spin);
- rgd->rd_free_clone--;
+ rgd->rd_free_clone -= *n;
spin_unlock(&sdp->sd_rindex_spin);
return block;
@@ -1505,12 +1519,13 @@
struct gfs2_rgrpd *rgd = al->al_rgd;
u32 blk;
u64 block;
+ unsigned int n = 1;
- blk = rgblk_search(rgd, rgd->rd_last_alloc_meta,
- GFS2_BLKST_FREE, GFS2_BLKST_DINODE);
+ blk = rgblk_search(rgd, rgd->rd_last_alloc,
+ GFS2_BLKST_FREE, GFS2_BLKST_DINODE, &n);
BUG_ON(blk == BFITNOENT);
- rgd->rd_last_alloc_meta = blk;
+ rgd->rd_last_alloc = blk;
block = rgd->rd_data0 + blk;
@@ -1519,12 +1534,12 @@
rgd->rd_rg.rg_dinodes++;
*generation = rgd->rd_rg.rg_igeneration++;
gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
- gfs2_rgrp_out(&rgd->rd_rg, rgd->rd_bits[0].bi_bh->b_data);
+ gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
al->al_alloced++;
gfs2_statfs_change(sdp, 0, -1, +1);
- gfs2_trans_add_unrevoke(sdp, block);
+ gfs2_trans_add_unrevoke(sdp, block, 1);
spin_lock(&sdp->sd_rindex_spin);
rgd->rd_free_clone--;
@@ -1553,7 +1568,7 @@
rgd->rd_rg.rg_free += blen;
gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
- gfs2_rgrp_out(&rgd->rd_rg, rgd->rd_bits[0].bi_bh->b_data);
+ gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
gfs2_trans_add_rg(rgd);
@@ -1581,7 +1596,7 @@
rgd->rd_rg.rg_free += blen;
gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
- gfs2_rgrp_out(&rgd->rd_rg, rgd->rd_bits[0].bi_bh->b_data);
+ gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
gfs2_trans_add_rg(rgd);
@@ -1601,7 +1616,7 @@
if (!rgd)
return;
gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
- gfs2_rgrp_out(&rgd->rd_rg, rgd->rd_bits[0].bi_bh->b_data);
+ gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
gfs2_trans_add_rg(rgd);
}
@@ -1621,7 +1636,7 @@
rgd->rd_rg.rg_free++;
gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
- gfs2_rgrp_out(&rgd->rd_rg, rgd->rd_bits[0].bi_bh->b_data);
+ gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
gfs2_statfs_change(sdp, 0, +1, -1);
gfs2_trans_add_rg(rgd);
@@ -1699,8 +1714,7 @@
*
*/
-void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state,
- int flags)
+void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state)
{
unsigned int x;
@@ -1708,7 +1722,7 @@
GFP_NOFS | __GFP_NOFAIL);
for (x = 0; x < rlist->rl_rgrps; x++)
gfs2_holder_init(rlist->rl_rgd[x]->rd_gl,
- state, flags,
+ state, 0,
&rlist->rl_ghs[x]);
}
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h
index 149bb16..3181c7e 100644
--- a/fs/gfs2/rgrp.h
+++ b/fs/gfs2/rgrp.h
@@ -1,6 +1,6 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
@@ -46,8 +46,7 @@
unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block);
-u64 gfs2_alloc_data(struct gfs2_inode *ip);
-u64 gfs2_alloc_meta(struct gfs2_inode *ip);
+u64 gfs2_alloc_block(struct gfs2_inode *ip, unsigned int *n);
u64 gfs2_alloc_di(struct gfs2_inode *ip, u64 *generation);
void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
@@ -64,8 +63,7 @@
void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,
u64 block);
-void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state,
- int flags);
+void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state);
void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
u64 gfs2_ri_total(struct gfs2_sbd *sdp);
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index ef0562c..7aeacbc 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -210,7 +210,7 @@
struct page *page;
struct bio *bio;
- page = alloc_page(GFP_KERNEL);
+ page = alloc_page(GFP_NOFS);
if (unlikely(!page))
return -ENOBUFS;
@@ -218,7 +218,7 @@
ClearPageDirty(page);
lock_page(page);
- bio = bio_alloc(GFP_KERNEL, 1);
+ bio = bio_alloc(GFP_NOFS, 1);
if (unlikely(!bio)) {
__free_page(page);
return -ENOBUFS;
@@ -316,6 +316,7 @@
sdp->sd_heightsize[x] = space;
}
sdp->sd_max_height = x;
+ sdp->sd_heightsize[x] = ~0;
gfs2_assert(sdp, sdp->sd_max_height <= GFS2_MAX_META_HEIGHT);
sdp->sd_jheightsize[0] = sdp->sd_sb.sb_bsize -
@@ -334,6 +335,7 @@
sdp->sd_jheightsize[x] = space;
}
sdp->sd_max_jheight = x;
+ sdp->sd_jheightsize[x] = ~0;
gfs2_assert(sdp, sdp->sd_max_jheight <= GFS2_MAX_META_HEIGHT);
return 0;
diff --git a/fs/gfs2/super.h b/fs/gfs2/super.h
index 60a870e..44361ec 100644
--- a/fs/gfs2/super.h
+++ b/fs/gfs2/super.h
@@ -17,6 +17,7 @@
int gfs2_check_sb(struct gfs2_sbd *sdp, struct gfs2_sb_host *sb, int silent);
int gfs2_read_sb(struct gfs2_sbd *sdp, struct gfs2_glock *gl, int silent);
int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector);
+void gfs2_lm_unmount(struct gfs2_sbd *sdp);
static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp)
{
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index eaa3b7b..9ab9fc8 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -20,7 +20,6 @@
#include "gfs2.h"
#include "incore.h"
-#include "lm.h"
#include "sys.h"
#include "super.h"
#include "glock.h"
@@ -328,15 +327,9 @@
} \
static struct counters_attr counters_attr_##name = __ATTR_RO(name)
-COUNTERS_ATTR(glock_count, "%u\n");
-COUNTERS_ATTR(glock_held_count, "%u\n");
-COUNTERS_ATTR(inode_count, "%u\n");
COUNTERS_ATTR(reclaimed, "%u\n");
static struct attribute *counters_attrs[] = {
- &counters_attr_glock_count.attr,
- &counters_attr_glock_held_count.attr,
- &counters_attr_inode_count.attr,
&counters_attr_reclaimed.attr,
NULL,
};
diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c
index 73e5d92..f677b8a 100644
--- a/fs/gfs2/trans.c
+++ b/fs/gfs2/trans.c
@@ -146,30 +146,25 @@
lops_add(sdp, &bd->bd_le);
}
-void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno)
+void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len)
{
- struct gfs2_bufdata *bd;
- int found = 0;
+ struct gfs2_bufdata *bd, *tmp;
+ struct gfs2_trans *tr = current->journal_info;
+ unsigned int n = len;
gfs2_log_lock(sdp);
-
- list_for_each_entry(bd, &sdp->sd_log_le_revoke, bd_le.le_list) {
- if (bd->bd_blkno == blkno) {
+ list_for_each_entry_safe(bd, tmp, &sdp->sd_log_le_revoke, bd_le.le_list) {
+ if ((bd->bd_blkno >= blkno) && (bd->bd_blkno < (blkno + len))) {
list_del_init(&bd->bd_le.le_list);
gfs2_assert_withdraw(sdp, sdp->sd_log_num_revoke);
sdp->sd_log_num_revoke--;
- found = 1;
- break;
+ kmem_cache_free(gfs2_bufdata_cachep, bd);
+ tr->tr_num_revoke_rm++;
+ if (--n == 0)
+ break;
}
}
-
gfs2_log_unlock(sdp);
-
- if (found) {
- struct gfs2_trans *tr = current->journal_info;
- kmem_cache_free(gfs2_bufdata_cachep, bd);
- tr->tr_num_revoke_rm++;
- }
}
void gfs2_trans_add_rg(struct gfs2_rgrpd *rgd)
diff --git a/fs/gfs2/trans.h b/fs/gfs2/trans.h
index e826f0d..edf9d4b 100644
--- a/fs/gfs2/trans.h
+++ b/fs/gfs2/trans.h
@@ -32,7 +32,7 @@
void gfs2_trans_add_bh(struct gfs2_glock *gl, struct buffer_head *bh, int meta);
void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
-void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno);
+void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len);
void gfs2_trans_add_rg(struct gfs2_rgrpd *rgd);
#endif /* __TRANS_DOT_H__ */
diff --git a/fs/gfs2/util.c b/fs/gfs2/util.c
index 424a077..d31e355 100644
--- a/fs/gfs2/util.c
+++ b/fs/gfs2/util.c
@@ -19,12 +19,12 @@
#include "gfs2.h"
#include "incore.h"
#include "glock.h"
-#include "lm.h"
#include "util.h"
struct kmem_cache *gfs2_glock_cachep __read_mostly;
struct kmem_cache *gfs2_inode_cachep __read_mostly;
struct kmem_cache *gfs2_bufdata_cachep __read_mostly;
+struct kmem_cache *gfs2_rgrpd_cachep __read_mostly;
void gfs2_assert_i(struct gfs2_sbd *sdp)
{
@@ -32,6 +32,28 @@
sdp->sd_fsname);
}
+int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...)
+{
+ va_list args;
+
+ if (test_and_set_bit(SDF_SHUTDOWN, &sdp->sd_flags))
+ return 0;
+
+ va_start(args, fmt);
+ vprintk(fmt, args);
+ va_end(args);
+
+ fs_err(sdp, "about to withdraw this file system\n");
+ BUG_ON(sdp->sd_args.ar_debug);
+
+ fs_err(sdp, "telling LM to withdraw\n");
+ gfs2_withdraw_lockproto(&sdp->sd_lockstruct);
+ fs_err(sdp, "withdrawn\n");
+ dump_stack();
+
+ return -1;
+}
+
/**
* gfs2_assert_withdraw_i - Cause the machine to withdraw if @assertion is false
* Returns: -1 if this call withdrew the machine,
diff --git a/fs/gfs2/util.h b/fs/gfs2/util.h
index 28938a4..509c5d6 100644
--- a/fs/gfs2/util.h
+++ b/fs/gfs2/util.h
@@ -147,6 +147,7 @@
extern struct kmem_cache *gfs2_glock_cachep;
extern struct kmem_cache *gfs2_inode_cachep;
extern struct kmem_cache *gfs2_bufdata_cachep;
+extern struct kmem_cache *gfs2_rgrpd_cachep;
static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
unsigned int *p)
@@ -163,6 +164,7 @@
void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap,
unsigned int bit, int new_value);
+int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...);
#endif /* __UTIL_DOT_H__ */
diff --git a/include/linux/lm_interface.h b/include/linux/lm_interface.h
index 1418fdc..f274997 100644
--- a/include/linux/lm_interface.h
+++ b/include/linux/lm_interface.h
@@ -21,9 +21,15 @@
* modify the filesystem. The lock module shouldn't assign a journal to the FS
* mount. It shouldn't send recovery callbacks to the FS mount. If the node
* dies or withdraws, all locks can be wiped immediately.
+ *
+ * LM_MFLAG_CONV_NODROP
+ * Do not allow the dlm to internally resolve conversion deadlocks by demoting
+ * the lock to unlocked and then reacquiring it in the requested mode. Instead,
+ * it should cancel the request and return LM_OUT_CONV_DEADLK.
*/
#define LM_MFLAG_SPECTATOR 0x00000001
+#define LM_MFLAG_CONV_NODROP 0x00000002
/*
* lm_lockstruct flags
@@ -110,6 +116,9 @@
*
* LM_OUT_ASYNC
* The result of the request will be returned in an LM_CB_ASYNC callback.
+ *
+ * LM_OUT_CONV_DEADLK
+ * The lock request was canceled do to a conversion deadlock.
*/
#define LM_OUT_ST_MASK 0x00000003
@@ -117,6 +126,7 @@
#define LM_OUT_CANCELED 0x00000008
#define LM_OUT_ASYNC 0x00000080
#define LM_OUT_ERROR 0x00000100
+#define LM_OUT_CONV_DEADLK 0x00000200
/*
* lm_callback_t types