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authorBob Peterson <rpeterso@redhat.com>2010-09-30 10:34:00 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2010-09-30 17:23:03 +0100
commit46290341cd649c2bfb69e5067c1804c0395c83a1 (patch)
tree1ef4a9c1d158ec182645d4be4cb3357a52a4404d /fs/gfs2/ops_inode.c
parentfeb47ca9314666d920855b8a235032dea2b2caa4 (diff)
GFS2 fatal: filesystem consistency error on rename
This patch fixes a GFS2 problem whereby the first rename after a mount can result in a file system consistency error being flagged improperly and cause the file system to withdraw. The problem is that the rename code tries to run the rgrp list with function gfs2_blk2rgrpd before the rgrp list is guaranteed to be read in from disk. The patch makes the rename function hold the rindex glock (as the gfs2_unlink code does today) which reads in the rgrp list if need be. There were a total of three places in the rename code that improperly referenced the rgrp list without the rindex glock and this patch fixes all three. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/ops_inode.c')
-rw-r--r--fs/gfs2/ops_inode.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index fba00171d915..0534510200d5 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -736,7 +736,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
struct gfs2_inode *ip = GFS2_I(odentry->d_inode);
struct gfs2_inode *nip = NULL;
struct gfs2_sbd *sdp = GFS2_SB(odir);
- struct gfs2_holder ghs[5], r_gh = { .gh_gl = NULL, };
+ struct gfs2_holder ghs[5], r_gh = { .gh_gl = NULL, }, ri_gh;
struct gfs2_rgrpd *nrgd;
unsigned int num_gh;
int dir_rename = 0;
@@ -750,6 +750,9 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
return 0;
}
+ error = gfs2_rindex_hold(sdp, &ri_gh);
+ if (error)
+ return error;
if (odip != ndip) {
error = gfs2_glock_nq_init(sdp->sd_rename_gl, LM_ST_EXCLUSIVE,
@@ -879,7 +882,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
al->al_requested = sdp->sd_max_dirres;
- error = gfs2_inplace_reserve(ndip);
+ error = gfs2_inplace_reserve_ri(ndip);
if (error)
goto out_gunlock_q;
@@ -961,6 +964,7 @@ out_gunlock_r:
if (r_gh.gh_gl)
gfs2_glock_dq_uninit(&r_gh);
out:
+ gfs2_glock_dq_uninit(&ri_gh);
return error;
}