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| author | Bob Peterson <rpeterso@redhat.com> | 2007-08-22 11:15:29 -0500 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2007-10-10 08:55:43 +0100 |
| commit | ec217e0ece60f2240772e6f08e0529775846c627 (patch) | |
| tree | 2b06b31dbb9165cf086580fe589249e8a54313c2 /fs/gfs2/lops.c | |
| parent | a947e0335699a1d387c3826e5b8eff9e0afe505e (diff) | |
| download | op-kernel-dev-ec217e0ece60f2240772e6f08e0529775846c627.zip op-kernel-dev-ec217e0ece60f2240772e6f08e0529775846c627.tar.gz | |
[GFS2] Patch to protect sd_log_num_jdata
This is a patch to GFS2 to protect sd_log_num_jdata with the
gfs2_log_lock. Without this patch, there is a timing window
where you can get hit the following assert from function
gfs2_log_flush():
gfs2_assert_withdraw(sdp,
sdp->sd_log_num_buf + sdp->sd_log_num_jdata ==
sdp->sd_log_commited_buf +
sdp->sd_log_commited_databuf);
I've tested it on my roth cluster and it fixes the problem.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/lops.c')
| -rw-r--r-- | fs/gfs2/lops.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c index a0371f8..7ef3356 100644 --- a/fs/gfs2/lops.c +++ b/fs/gfs2/lops.c @@ -492,11 +492,12 @@ static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) gfs2_trans_add_gl(bd->bd_gl); if (gfs2_is_jdata(ip)) { - sdp->sd_log_num_jdata++; gfs2_pin(sdp, bd->bd_bh); tr->tr_num_databuf_new++; } gfs2_log_lock(sdp); + if (gfs2_is_jdata(ip)) + sdp->sd_log_num_jdata++; sdp->sd_log_num_databuf++; list_add(&le->le_list, &sdp->sd_log_le_databuf); gfs2_log_unlock(sdp); |
