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| author | Tariq Saeed <tariq.x.saeed@oracle.com> | 2014-04-03 23:47:03 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-04 01:20:55 +0200 |
| commit | 3ed2be719eb9770139da791342b190b20a7a9270 (patch) | |
| tree | 1d8bfe464b454651400aef7158de91ff07cbab3a /fs/ocfs2 | |
| parent | ocfs2: fix deadlock risk when kmalloc failed in dlm_query_region_handler (diff) | |
| download | linux-3ed2be719eb9770139da791342b190b20a7a9270.tar.xz linux-3ed2be719eb9770139da791342b190b20a7a9270.zip | |
ocfs2: allow for more than one data extent when creating xattr
Orabug: 18108070
ocfs2_xattr_extend_allocation() hits panic when creating xattr during
data extent alloc phase. The problem occurs if due to local alloc
fragmentation, clusters are spread over multiple extents. In this case
ocfs2_add_clusters_in_btree() finds no space to store more than one
extent record and therefore fails returning RESTART_META. The situation
is anticipated for xattr update case but not xattr create case. This
fix simply ports that code to create case.
Signed-off-by: Tariq Saeed <tariq.x.saeed@oracle.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2')
| -rw-r--r-- | fs/ocfs2/xattr.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c index 185fa3b7f962..4217fedb2c11 100644 --- a/fs/ocfs2/xattr.c +++ b/fs/ocfs2/xattr.c @@ -3200,8 +3200,15 @@ meta_guess: clusters_add += 1; } } else { - meta_add += 1; credits += OCFS2_XATTR_BLOCK_CREATE_CREDITS; + if (xi->xi_value_len > OCFS2_XATTR_INLINE_SIZE) { + struct ocfs2_extent_list *el = &def_xv.xv.xr_list; + meta_add += ocfs2_extend_meta_needed(el); + credits += ocfs2_calc_extend_credits(inode->i_sb, + el); + } else { + meta_add += 1; + } } out: if (clusters_need) |