From afa027f3f568c9647fd596026f6fb803d3d2887c Mon Sep 17 00:00:00 2001 From: mav Date: Tue, 18 Feb 2014 14:56:44 +0000 Subject: [PATCH] MFC r260236: In dmu_zfetch_stream_reclaim() replace division with multiplication and move it out of the loop and lock. --- sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c index 647ad9e0441c..d51a981c1273 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c @@ -604,14 +604,16 @@ static zstream_t * dmu_zfetch_stream_reclaim(zfetch_t *zf) { zstream_t *zs; + clock_t ticks; + ticks = zfetch_min_sec_reap * hz; if (! rw_tryenter(&zf->zf_rwlock, RW_WRITER)) return (0); for (zs = list_head(&zf->zf_stream); zs; zs = list_next(&zf->zf_stream, zs)) { - if (((ddi_get_lbolt() - zs->zst_last)/hz) > zfetch_min_sec_reap) + if (ddi_get_lbolt() - zs->zst_last > ticks) break; }