diff options
| -rw-r--r-- | module/zfs/arc.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/module/zfs/arc.c b/module/zfs/arc.c index 074163369..c3d88679f 100644 --- a/module/zfs/arc.c +++ b/module/zfs/arc.c @@ -5343,8 +5343,18 @@ arc_init(void) arc_need_free = 0; #endif - /* Set min cache to allow safe operation of arc_adapt() */ + /* + * In userland, there's only the memory pressure that we artificially + * create (see arc_available_memory()). Don't let arc_c get too + * small, because it can cause transactions to be larger than + * arc_c, causing arc_tempreserve_space() to fail. + */ +#ifndef _KERNEL + arc_c_min = arc_c_max / 2; +#else arc_c_min = 2ULL << SPA_MAXBLOCKSHIFT; +#endif + /* Set max to 1/2 of all memory */ arc_c_max = allmem / 2; |