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[PATCH] reiserfs: reiserfs write_ordered_buffers should not oops on dirty non-uptodate bh

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write_ordered_buffers should handle dirty non-uptodate buffers without a
BUG()

Signed-off-by: Chris Mason <mason@suse.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Chris Mason 2006-02-01 03:06:49 -08:00 committed by Linus Torvalds
parent e0e851cf30
commit 3d4492f81d
1 changed files with 13 additions and 2 deletions
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15
fs/reiserfs/journal.c
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@ -846,6 +846,14 @@ static int write_ordered_buffers(spinlock_t * lock,
spin_lock(lock);
goto loop_next;
}
/* in theory, dirty non-uptodate buffers should never get here,
* but the upper layer io error paths still have a few quirks.
* Handle them here as gracefully as we can
*/
if (!buffer_uptodate(bh) && buffer_dirty(bh)) {
clear_buffer_dirty(bh);
ret = -EIO;
}
if (buffer_dirty(bh)) {
list_del_init(&jh->list);
list_add(&jh->list, &tmp);
@ -1030,9 +1038,12 @@ static int flush_commit_list(struct super_block *s,
}
if (!list_empty(&jl->j_bh_list)) {
int ret;
unlock_kernel();
write_ordered_buffers(&journal->j_dirty_buffers_lock,
journal, jl, &jl->j_bh_list);
ret = write_ordered_buffers(&journal->j_dirty_buffers_lock,
journal, jl, &jl->j_bh_list);
if (ret < 0 && retval == 0)
retval = ret;
lock_kernel();
}
BUG_ON(!list_empty(&jl->j_bh_list));