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authorJan Kara <jack@suse.cz>2013-02-22 01:42:57 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-22 02:22:20 +0100
commit1269529bda27823ed42798762e896c059ea5e486 (patch)
treedc5432af7aad76161fe4094ec32f8410fd06f7b3 /fs
parentblock: optionally snapshot page contents to provide stable pages during write (diff)
downloadlinux-1269529bda27823ed42798762e896c059ea5e486.tar.xz
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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>
Diffstat (limited to 'fs')
-rw-r--r--fs/ocfs2/aops.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 657743254eb9..9796330d8f04 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];