diff options
Diffstat (limited to 'module/zfs/arc.c')
| -rw-r--r-- | module/zfs/arc.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/module/zfs/arc.c b/module/zfs/arc.c index 11839af59..cbc9b9fee 100644 --- a/module/zfs/arc.c +++ b/module/zfs/arc.c @@ -2332,6 +2332,7 @@ void arc_shrink(uint64_t bytes) { if (arc_c > arc_c_min) { + uint64_t arc_p_min; uint64_t to_free; to_free = bytes ? bytes : arc_c >> zfs_arc_shrink_shift; @@ -2341,7 +2342,14 @@ arc_shrink(uint64_t bytes) else arc_c = arc_c_min; - atomic_add_64(&arc_p, -(arc_p >> zfs_arc_shrink_shift)); + arc_p_min = (arc_c >> zfs_arc_p_min_shift); + to_free = bytes ? bytes : arc_p >> zfs_arc_shrink_shift; + + if (arc_p > arc_p_min + to_free) + atomic_add_64(&arc_p, -to_free); + else + arc_p = arc_p_min; + if (arc_c > arc_size) arc_c = MAX(arc_size, arc_c_min); if (arc_p > arc_c) |