Date: Mon, 2 Nov 2020 17:39:59 +0000 (UTC) From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r367276 - head/sys/contrib/openzfs/module/zstd Message-ID: <202011021739.0A2HdxI5054782@repo.freebsd.org>
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Author: mjg Date: Mon Nov 2 17:39:59 2020 New Revision: 367276 URL: https://svnweb.freebsd.org/changeset/base/367276 Log: zfs: zstd: short-circuit cleaning buffers if none exist This avoids a barrage of locking every minute. Modified: head/sys/contrib/openzfs/module/zstd/zfs_zstd.c Modified: head/sys/contrib/openzfs/module/zstd/zfs_zstd.c ============================================================================== --- head/sys/contrib/openzfs/module/zstd/zfs_zstd.c Mon Nov 2 17:39:15 2020 (r367275) +++ head/sys/contrib/openzfs/module/zstd/zfs_zstd.c Mon Nov 2 17:39:59 2020 (r367276) @@ -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
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