ocfs2: Free block to the right block group.
In case the block we are going to free is allocated from
a discontiguous block group, we have to use suballoc_loc
to be the right group.
Signed-off-by: Tao Ma <tao.ma@oracle.com>
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 479d2ec..af2d1bd 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -6203,6 +6203,7 @@
*/
struct ocfs2_cached_block_free {
struct ocfs2_cached_block_free *free_next;
+ u64 free_bg;
u64 free_blk;
unsigned int free_bit;
};
@@ -6249,8 +6250,11 @@
}
while (head) {
- bg_blkno = ocfs2_which_suballoc_group(head->free_blk,
- head->free_bit);
+ if (head->free_bg)
+ bg_blkno = head->free_bg;
+ else
+ bg_blkno = ocfs2_which_suballoc_group(head->free_blk,
+ head->free_bit);
mlog(0, "Free bit: (bit %u, blkno %llu)\n",
head->free_bit, (unsigned long long)head->free_blk);
@@ -6298,7 +6302,7 @@
int ret = 0;
struct ocfs2_cached_block_free *item;
- item = kmalloc(sizeof(*item), GFP_NOFS);
+ item = kzalloc(sizeof(*item), GFP_NOFS);
if (item == NULL) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -6438,8 +6442,8 @@
}
int ocfs2_cache_block_dealloc(struct ocfs2_cached_dealloc_ctxt *ctxt,
- int type, int slot, u64 blkno,
- unsigned int bit)
+ int type, int slot, u64 suballoc,
+ u64 blkno, unsigned int bit)
{
int ret;
struct ocfs2_per_slot_free_list *fl;
@@ -6452,7 +6456,7 @@
goto out;
}
- item = kmalloc(sizeof(*item), GFP_NOFS);
+ item = kzalloc(sizeof(*item), GFP_NOFS);
if (item == NULL) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -6462,6 +6466,7 @@
mlog(0, "Insert: (type %d, slot %u, bit %u, blk %llu)\n",
type, slot, bit, (unsigned long long)blkno);
+ item->free_bg = suballoc;
item->free_blk = blkno;
item->free_bit = bit;
item->free_next = fl->f_first;
@@ -6478,6 +6483,7 @@
{
return ocfs2_cache_block_dealloc(ctxt, EXTENT_ALLOC_SYSTEM_INODE,
le16_to_cpu(eb->h_suballoc_slot),
+ le64_to_cpu(eb->h_suballoc_loc),
le64_to_cpu(eb->h_blkno),
le16_to_cpu(eb->h_suballoc_bit));
}