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authorSteven Whitehouse <swhiteho@redhat.com>2007-10-17 12:04:24 +0400
committerSteven Whitehouse <swhiteho@redhat.com>2008-01-25 11:07:28 +0300
commitb8e7cbb65bcc99630e123422c6829ce3c0fcdf14 (patch)
treea9f68259b90e9e65ea7f0369f448d580a8944f06 /fs/gfs2/log.c
parent9ff8ec32e58875022447af619bec6e5aee7c77e4 (diff)
downloadlinux-b8e7cbb65bcc99630e123422c6829ce3c0fcdf14.tar.xz
[GFS2] Add writepages for GFS2 jdata
This patch resolves a lock ordering issue where we had been getting a transaction lock in the wrong order with respect to the page lock. By using writepages rather than just writepage, it is then possible to start a transaction before locking the page, and thus matching the locking order elsewhere in the code. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/log.c')
-rw-r--r--fs/gfs2/log.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 70b404d2774b..1e1fe8def375 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -650,7 +650,7 @@ static void gfs2_ordered_write(struct gfs2_sbd *sdp)
get_bh(bh);
gfs2_log_unlock(sdp);
lock_buffer(bh);
- if (test_clear_buffer_dirty(bh)) {
+ if (buffer_mapped(bh) && test_clear_buffer_dirty(bh)) {
bh->b_end_io = end_buffer_write_sync;
submit_bh(WRITE, bh);
} else {