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authorBob Peterson <rpeterso@redhat.com>2017-01-25 20:50:47 +0300
committerBob Peterson <rpeterso@redhat.com>2017-01-27 16:20:13 +0300
commit9862ca056e654633e521b303f74fb123f7f17e98 (patch)
tree313e2ce19c02ded366c2974f9480fc94e96cb430 /fs/gfs2/log.c
parentb63f5e84826b3e1ae81e051a6a7c5a94b657aecb (diff)
downloadlinux-9862ca056e654633e521b303f74fb123f7f17e98.tar.xz
GFS2: Switch tr_touched to flag in transaction
This patch eliminates the int variable tr_touched in favor of a new flag in the transaction. This is a step toward reducing contention on the gfs2_log_lock spin_lock. Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'fs/gfs2/log.c')
-rw-r--r--fs/gfs2/log.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 5028a9d00c17..4fb76c04e65b 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -799,7 +799,7 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl,
static void gfs2_merge_trans(struct gfs2_trans *old, struct gfs2_trans *new)
{
- WARN_ON_ONCE(old->tr_attached != 1);
+ WARN_ON_ONCE(!test_bit(TR_ATTACHED, &old->tr_flags));
old->tr_num_buf_new += new->tr_num_buf_new;
old->tr_num_databuf_new += new->tr_num_databuf_new;
@@ -823,9 +823,9 @@ static void log_refund(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
if (sdp->sd_log_tr) {
gfs2_merge_trans(sdp->sd_log_tr, tr);
} else if (tr->tr_num_buf_new || tr->tr_num_databuf_new) {
- gfs2_assert_withdraw(sdp, tr->tr_alloced);
+ gfs2_assert_withdraw(sdp, test_bit(TR_ALLOCED, &tr->tr_flags));
sdp->sd_log_tr = tr;
- tr->tr_attached = 1;
+ set_bit(TR_ATTACHED, &tr->tr_flags);
}
sdp->sd_log_commited_revoke += tr->tr_num_revoke - tr->tr_num_revoke_rm;