[GFS2] gfs2_adjust_quota has broken unstuffing code
This patch combines the 2 patches in bug 434736 to correct the lock
ordering in the unstuffing of the quota inode in gfs2_adjust_quota and
adjusting the number of revokes in gfs2_write_jdata_pagevec
Signed-off-by: Abhijith Das <adas@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 636bccf..c71f781 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -616,17 +616,9 @@
s64 value;
int err = -EIO;
- if (gfs2_is_stuffed(ip)) {
- struct gfs2_alloc *al = gfs2_alloc_get(ip);
- if (!al)
- return -ENOMEM;
- /* 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;
@@ -691,7 +683,7 @@
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;
@@ -728,34 +720,33 @@
nalloc++;
}
- if (nalloc) {
- al = gfs2_alloc_get(ip);
- if (!al) {
- error = -ENOMEM;
- goto out_gunlock;
- }
-
- 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];
@@ -774,11 +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: