cluster: RHEL510 - fsck.gfs2: fsck.gfs2: Duplicate ref processing for leaf blocks
Bob Peterson
rpeterso at fedoraproject.org
Fri Apr 5 13:45:27 UTC 2013
Gitweb: http://git.fedorahosted.org/git/?p=cluster.git;a=commitdiff;h=758e195b7abff40e57aa79a840bbc28fb3634f6e
Commit: 758e195b7abff40e57aa79a840bbc28fb3634f6e
Parent: f4de877fc268b6915c92653230a279e60dfd560c
Author: Bob Peterson <rpeterso at redhat.com>
AuthorDate: Tue Aug 9 09:33:08 2011 -0500
Committer: Bob Peterson <rpeterso at redhat.com>
CommitterDate: Fri Apr 5 06:25:00 2013 -0700
fsck.gfs2: fsck.gfs2: Duplicate ref processing for leaf blocks
This patch adds checks for duplicate block references to the leaf block
processing.
rhbz#877150
---
gfs2/fsck/pass1.c | 20 ++++++++++++++++++++
1 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/gfs2/fsck/pass1.c b/gfs2/fsck/pass1.c
index c7b24a7..92bc1e6 100644
--- a/gfs2/fsck/pass1.c
+++ b/gfs2/fsck/pass1.c
@@ -349,7 +349,27 @@ static int check_num_ptrs(struct gfs2_inode *ip, uint64_t leafno,
static int check_leaf(struct gfs2_inode *ip, uint64_t block, void *private)
{
struct block_count *bc = (struct block_count *) private;
+ uint8_t q;
+ /* Note if we've gotten this far, the block has already passed the
+ check in metawalk: gfs2_check_meta(lbh, GFS2_METATYPE_LF).
+ So we know it's a leaf block. */
+ q = block_type(block);
+ if (q != gfs2_block_free) {
+ log_err( _("Found duplicate block %llu (0x%llx) referenced "
+ "as a directory leaf in dinode "
+ "%llu (0x%llx) - was marked %d (%s)\n"),
+ (unsigned long long)block,
+ (unsigned long long)block,
+ (unsigned long long)ip->i_di.di_num.no_addr,
+ (unsigned long long)ip->i_di.di_num.no_addr, q,
+ block_type_string(q));
+ add_duplicate_ref(ip, block, ref_as_meta, 0, INODE_VALID);
+ if (q == gfs2_leaf_blk) /* If the previous reference also saw
+ this as a leaf, it was already
+ checked, so don't check again. */
+ return -EEXIST;
+ }
fsck_blockmap_set(ip, block, _("directory leaf"), gfs2_leaf_blk);
bc->indir_count++;
return 0;
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