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authorBenjamin Marzinski <bmarzins@redhat.com>2007-06-01 14:21:38 -0500
committerSteven Whitehouse <swhiteho@redhat.com>2007-07-09 08:23:08 +0100
commitddf4b426aababdae4cb96326d7aeb9d119f42c50 (patch)
tree26aceb619f34e7b58e50a0ad0dc4db4e69664edc /fs/gfs2/lops.c
parentafb853fb4eec380b492a3c369f837359359c28e8 (diff)
downloadop-kernel-dev-ddf4b426aababdae4cb96326d7aeb9d119f42c50.zip
op-kernel-dev-ddf4b426aababdae4cb96326d7aeb9d119f42c50.tar.gz
[GFS2] fix jdata issues
This is a patch for the first three issues of RHBZ #238162 The first issue is that when you allocate a new page for a file, it will not start off uptodate. This makes sense, since you haven't written anything to that part of the file yet. Unfortunately, gfs2_pin() checks to make sure that the buffers are uptodate. The solution to this is to mark the buffers uptodate in gfs2_commit_write(), after they have been zeroed out and have the data written into them. I'm pretty confident with this fix, although it's not completely obvious that there is no problem with marking the buffers uptodate here. The second issue is simply that you can try to pin a data buffer that is already on the incore log, and thus, already pinned. This patch checks to see if this buffer is already on the log, and exits databuf_lo_add() if it is, just like buf_lo_add() does. The third issue is that gfs2_log_flush() doesn't do it's block accounting correctly. Both metadata and journaled data are logged, but gfs2_log_flush() only compares the number of metadata blocks with the number of blocks to commit to the ondisk journal. This patch also counts the journaled data blocks. Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/lops.c')
-rw-r--r--fs/gfs2/lops.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
index f82d84d..3e971f2 100644
--- a/fs/gfs2/lops.c
+++ b/fs/gfs2/lops.c
@@ -475,6 +475,8 @@ static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
tr->tr_num_buf++;
list_add(&bd->bd_list_tr, &tr->tr_list_buf);
gfs2_log_unlock(sdp);
+ if (!list_empty(&le->le_list))
+ return;
gfs2_pin(sdp, bd->bd_bh);
tr->tr_num_buf_new++;
} else {
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