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| author | Bob Peterson <rpeterso@redhat.com> | 2017-01-05 16:01:45 -0500 |
|---|---|---|
| committer | Bob Peterson <rpeterso@redhat.com> | 2017-01-05 16:01:45 -0500 |
| commit | f07b352021483a3a38f081dc284928400a9c1d2c (patch) | |
| tree | feef7f57a98a0fc58ebfa693d7c435f2029c68bb /fs/gfs2/log.c | |
| parent | 2fcf5cc3be06126f9aa2430ca6d739c8b3c5aaf5 (diff) | |
| download | blackbird-op-linux-f07b352021483a3a38f081dc284928400a9c1d2c.tar.gz blackbird-op-linux-f07b352021483a3a38f081dc284928400a9c1d2c.zip | |
GFS2: Made logd daemon take into account log demand
Before this patch, the logd daemon only tried to flush things when
the log blocks pinned exceeded a certain threshold. But when we're
deleting very large files, it may require a huge number of journal
blocks, and that, in turn, may exceed the threshold. This patch
factors that into account.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'fs/gfs2/log.c')
| -rw-r--r-- | fs/gfs2/log.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c index e58ccef09c91..4df349c7f022 100644 --- a/fs/gfs2/log.c +++ b/fs/gfs2/log.c @@ -349,6 +349,7 @@ int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks) if (gfs2_assert_warn(sdp, blks) || gfs2_assert_warn(sdp, blks <= sdp->sd_jdesc->jd_blocks)) return -EINVAL; + atomic_add(blks, &sdp->sd_log_blks_needed); retry: free_blocks = atomic_read(&sdp->sd_log_blks_free); if (unlikely(free_blocks <= wanted)) { @@ -370,6 +371,7 @@ retry: wake_up(&sdp->sd_reserving_log_wait); goto retry; } + atomic_sub(blks, &sdp->sd_log_blks_needed); trace_gfs2_log_blocks(sdp, -blks); /* @@ -891,13 +893,16 @@ void gfs2_log_shutdown(struct gfs2_sbd *sdp) static inline int gfs2_jrnl_flush_reqd(struct gfs2_sbd *sdp) { - return (atomic_read(&sdp->sd_log_pinned) >= atomic_read(&sdp->sd_log_thresh1)); + return (atomic_read(&sdp->sd_log_pinned) + + atomic_read(&sdp->sd_log_blks_needed) >= + atomic_read(&sdp->sd_log_thresh1)); } static inline int gfs2_ail_flush_reqd(struct gfs2_sbd *sdp) { unsigned int used_blocks = sdp->sd_jdesc->jd_blocks - atomic_read(&sdp->sd_log_blks_free); - return used_blocks >= atomic_read(&sdp->sd_log_thresh2); + return used_blocks + atomic_read(&sdp->sd_log_blks_needed) >= + atomic_read(&sdp->sd_log_thresh2); } /** |
