[Ocfs2-devel] [PATCH 5/6] ocfs2: Wait for page writeback to provide stable pages
Darrick J. Wong
darrick.wong at oracle.com
Mon Jan 14 21:43:13 PST 2013
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().
CC: ocfs2-devel at oss.oracle.com
CC: Joel Becker <jlbec at evilplan.org>
CC: Mark Fasheh <mfasheh at suse.com>
From: Jan Kara <jack at suse.cz>
Signed-off-by: Jan Kara <jack at suse.cz>
---
fs/ocfs2/aops.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 6577432..9796330 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -1194,6 +1194,7 @@ static int ocfs2_grab_pages_for_write(struct address_space *mapping,
goto out;
}
}
+ wait_for_stable_page(wc->w_pages[i]);
if (index == target_index)
wc->w_target_page = wc->w_pages[i];
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