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authorBob Peterson <rpeterso@redhat.com>2020-08-20 08:53:29 -0500
committerAndreas Gruenbacher <agruenba@redhat.com>2020-10-15 14:29:03 +0200
commit77650bdbd293ac56807b8a3f24ca8152035eb2e3 (patch)
tree44e1a425851519bb922d0bf83140ddf3eacf8c74 /fs/gfs2
parent21b6924bb70e77c83d508b0d188d88f5e403f1f5 (diff)
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gfs2: add missing log_blocks trace points in gfs2_write_revokes
Function gfs2_write_revokes was incrementing and decrementing the number of log blocks free, but there was never a log_blocks trace point for it. Thus, the free blocks from a log_blocks trace would jump around mysteriously. This patch adds the missing trace points so the trace makes more sense. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/log.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index a83e6426e26e..3712059f19f9 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -716,16 +716,24 @@ void gfs2_write_revokes(struct gfs2_sbd *sdp)
atomic_dec(&sdp->sd_log_blks_free);
/* If no blocks have been reserved, we need to also
* reserve a block for the header */
- if (!sdp->sd_log_blks_reserved)
+ if (!sdp->sd_log_blks_reserved) {
atomic_dec(&sdp->sd_log_blks_free);
+ trace_gfs2_log_blocks(sdp, -2);
+ } else {
+ trace_gfs2_log_blocks(sdp, -1);
+ }
}
gfs2_ail1_empty(sdp, max_revokes);
gfs2_log_unlock(sdp);
if (!sdp->sd_log_num_revoke) {
atomic_inc(&sdp->sd_log_blks_free);
- if (!sdp->sd_log_blks_reserved)
+ if (!sdp->sd_log_blks_reserved) {
atomic_inc(&sdp->sd_log_blks_free);
+ trace_gfs2_log_blocks(sdp, 2);
+ } else {
+ trace_gfs2_log_blocks(sdp, 1);
+ }
}
}