The patch titled
Subject: ocfs2: rollback the cleared bits if error occurs after ocfs2_block_group_clear_bits
has been added to the -mm tree. Its filename is
ocfs2-rollback-the-cleared-bits-if-error-occurs-after-ocfs2_block_group_clear_bits.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ocfs2-rollback-the-cleared-bits-if-error-occurs-after-ocfs2_block_group_clear_bits.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ocfs2-rollback-the-cleared-bits-if-error-occurs-after-ocfs2_block_group_clear_bits.patch
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------------------------------------------------------
From: Joseph Qi <joseph.qi@xxxxxxxxxx>
Subject: ocfs2: rollback the cleared bits if error occurs after ocfs2_block_group_clear_bits
ocfs2_block_group_clear_bits will clear bits in block group bitmap.
Once it succeeds but fails in the following step, it will cause block
group bitmap mismatch the corresponding count recorded in dinode.
So rollback the cleared bits if error occurs.
Signed-off-by: Joseph Qi <joseph.qi@xxxxxxxxxx>
Cc: Mark Fasheh <mfasheh@xxxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ocfs2/suballoc.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN fs/ocfs2/suballoc.c~ocfs2-rollback-the-cleared-bits-if-error-occurs-after-ocfs2_block_group_clear_bits fs/ocfs2/suballoc.c
--- a/fs/ocfs2/suballoc.c~ocfs2-rollback-the-cleared-bits-if-error-occurs-after-ocfs2_block_group_clear_bits
+++ a/fs/ocfs2/suballoc.c
@@ -2499,6 +2499,8 @@ static int _ocfs2_free_suballoc_bits(han
alloc_bh, OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
+ ocfs2_block_group_set_bits(handle, alloc_inode, group, group_bh,
+ start_bit, count);
goto bail;
}
_
Patches currently in -mm which might be from joseph.qi@xxxxxxxxxx are
ocfs2-fix-a-typing-error-in-ocfs2_direct_io_write.patch
ocfs2-no-need-get-dinode-bh-when-zeroing-extend.patch
ocfs2-take-inode-lock-when-get-clusters.patch
ocfs2-do-not-use-ocfs2_zero_extend-during-direct-io.patch
ocfs2-fix-typo-in-ocfs2_reserve_local_alloc_bits.patch
ocfs2-use-actual-name-length-when-find-entry-in-ocfs2_orphan_del.patch
ocfs2-use-enoent-instead-of-eexist-when-get-system-file-fails.patch
ocfs2-rollback-the-cleared-bits-if-error-occurs-after-ocfs2_block_group_clear_bits.patch
ocfs2-avoid-access-invalid-address-when-read-o2dlm-debug-messages.patch
ocfs2-avoid-access-invalid-address-when-read-o2dlm-debug-messages-v3.patch
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