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| author | Mateusz Guzik <mjg@FreeBSD.org> | 2020-11-02 17:39:59 +0000 |
|---|---|---|
| committer | Mateusz Guzik <mjg@FreeBSD.org> | 2020-11-02 17:39:59 +0000 |
| commit | 36639c3942f587e652d2aba6a71ad45b64c2ce47 (patch) | |
| tree | 285302123930366c65e4580f85d3ab787ddb9731 | |
| parent | e1b6a7f83f144a03685f53b235c197ee0c24ae3a (diff) | |
| download | src-36639c3942f587e652d2aba6a71ad45b64c2ce47.tar.gz src-36639c3942f587e652d2aba6a71ad45b64c2ce47.zip | |
zfs: zstd: short-circuit cleaning buffers if none exist
This avoids a barrage of locking every minute.
Notes
Notes:
svn path=/head/; revision=367276
| -rw-r--r-- | sys/contrib/openzfs/module/zstd/zfs_zstd.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/contrib/openzfs/module/zstd/zfs_zstd.c b/sys/contrib/openzfs/module/zstd/zfs_zstd.c index 5c896478f970..3d1805f49cca 100644 --- a/sys/contrib/openzfs/module/zstd/zfs_zstd.c +++ b/sys/contrib/openzfs/module/zstd/zfs_zstd.c @@ -700,6 +700,13 @@ zstd_mempool_deinit(void) void zfs_zstd_cache_reap_now(void) { + + /* + * Short-circuit if there are no buffers to begin with. + */ + if (ZSTDSTAT(zstd_stat_buffers) == 0) + return; + /* * calling alloc with zero size seeks * and releases old unused objects |