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ocfs2: wait for page writeback to provide stable pages 

When stable pages are required, we have to wait if the page is just
going to disk and we want to modify it.  Add proper callback to
ocfs2_grab_pages_for_write().

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Artem Bityutskiy <dedekind1@gmail.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Ron Minnich <rminnich@sandia.gov>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Kara 2013-02-21 16:42:57 -08:00 committed by Linus Torvalds
parent ffecfd1a72
commit 1269529bda
1 changed files with 1 additions and 0 deletions
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1
fs/ocfs2/aops.c
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@ -1194,6 +1194,7 @@ static int ocfs2_grab_pages_for_write(struct address_space *mapping,
goto out; goto out;
} }
} }
wait_for_stable_page(wc->w_pages[i]);
if (index == target_index) if (index == target_index)
wc->w_target_page = wc->w_pages[i]; wc->w_target_page = wc->w_pages[i];