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authorYounger Liu <younger.liucn@gmail.com>2014-04-03 14:47:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-03 16:20:56 -0700
commitdb66c71577d525c0cd65e66ff675747565783ba4 (patch)
tree94744927610c329533bad994055a37d2e2a3b5d1 /fs/ocfs2/suballoc.h
parente228f6439862359f9b26f9d62634e4fce180b54a (diff)
downloadlinux-db66c71577d525c0cd65e66ff675747565783ba4.tar.bz2
ocfs2: rollback alloc_dinode counts when ocfs2_block_group_set_bits() failed
After updating alloc_dinode counts in ocfs2_alloc_dinode_update_counts(), if ocfs2_alloc_dinode_update_bitmap() failed, there is a rare case that some space may be lost. So, roll back alloc_dinode counts when ocfs2_block_group_set_bits() failed. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Younger Liu <younger.liucn@gmail.com> Reviewed-by: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/suballoc.h')
-rw-r--r--fs/ocfs2/suballoc.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h
index 218d8036b3e7..2d2501767c0c 100644
--- a/fs/ocfs2/suballoc.h
+++ b/fs/ocfs2/suballoc.h
@@ -91,6 +91,10 @@ int ocfs2_alloc_dinode_update_counts(struct inode *inode,
struct buffer_head *di_bh,
u32 num_bits,
u16 chain);
+void ocfs2_rollback_alloc_dinode_counts(struct inode *inode,
+ struct buffer_head *di_bh,
+ u32 num_bits,
+ u16 chain);
int ocfs2_block_group_set_bits(handle_t *handle,
struct inode *alloc_inode,
struct ocfs2_group_desc *bg,