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authorSteven Whitehouse <swhiteho@redhat.com>2007-09-17 10:59:52 +0100
committerSteven Whitehouse <swhiteho@redhat.com>2007-10-10 08:56:24 +0100
commit16615be18cadf53ee6f8a4f0bdd647f0753421b1 (patch)
tree670c75e931e6d606211f338ee5e8b1d603c96521 /fs/gfs2/ops_address.c
parent55c0c4ac0be144014651b19e77c9b77f367955de (diff)
[GFS2] Clean up journaled data writing
This patch cleans up the code for writing journaled data into the log. It also removes the need to allocate a small "tag" structure for each block written into the log. Instead we just keep count of the outstanding I/O so that we can be sure that its all been written at the correct time. Another result of this patch is that a number of ll_rw_block() calls have become submit_bh() calls, closing some races at the same time. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/ops_address.c')
-rw-r--r--fs/gfs2/ops_address.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index dd1ea491ddc..b7baf183191 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -414,7 +414,8 @@ static int gfs2_prepare_write(struct file *file, struct page *page,
if (ind_blocks || data_blocks)
rblocks += RES_STATFS + RES_QUOTA;
- error = gfs2_trans_begin(sdp, rblocks, 0);
+ error = gfs2_trans_begin(sdp, rblocks,
+ PAGE_CACHE_SIZE/sdp->sd_sb.sb_bsize);
if (error)
goto out_trans_fail;
@@ -625,10 +626,10 @@ static void gfs2_discard(struct gfs2_sbd *sdp, struct buffer_head *bh)
clear_buffer_dirty(bh);
bd = bh->b_private;
if (bd) {
- if (!list_empty(&bd->bd_le.le_list)) {
- if (!buffer_pinned(bh))
- list_del_init(&bd->bd_le.le_list);
- }
+ if (!list_empty(&bd->bd_le.le_list) && !buffer_pinned(bh))
+ list_del_init(&bd->bd_le.le_list);
+ else
+ gfs2_remove_from_journal(bh, current->journal_info, 0);
}
bh->b_bdev = NULL;
clear_buffer_mapped(bh);