diff options
Diffstat (limited to 'include/uapi/linux/mempolicy.h')
| -rw-r--r-- | include/uapi/linux/mempolicy.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/uapi/linux/mempolicy.h b/include/uapi/linux/mempolicy.h index 1f9bb10d1a47..8fbbe613611a 100644 --- a/include/uapi/linux/mempolicy.h +++ b/include/uapi/linux/mempolicy.h @@ -66,10 +66,16 @@ enum { #define MPOL_F_MORON (1 << 4) /* Migrate On protnone Reference On Node */ /* - * These bit locations are exposed in the vm.zone_reclaim_mode sysctl - * ABI. New bits are OK, but existing bits can never change. + * Enabling zone reclaim means the page allocator will attempt to fulfill + * the allocation request on the current node by triggering reclaim and + * trying to shrink the current node. + * Fallback allocations on the next candidates in the zonelist are considered + * when reclaim fails to free up enough memory in the current node/zone. + * + * These bit locations are exposed in the vm.zone_reclaim_mode sysctl. + * New bits are OK, but existing bits should not be changed. */ -#define RECLAIM_ZONE (1<<0) /* Run shrink_inactive_list on the zone */ +#define RECLAIM_ZONE (1<<0) /* Enable zone reclaim */ #define RECLAIM_WRITE (1<<1) /* Writeout pages during reclaim */ #define RECLAIM_UNMAP (1<<2) /* Unmap pages during reclaim */ |