diff options
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 159e6c760d8..be4dfe87be0 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -126,6 +126,12 @@ long vm_total_pages; /* The total number of pages which the VM controls */ static LIST_HEAD(shrinker_list); static DECLARE_RWSEM(shrinker_rwsem); +#ifdef CONFIG_CGROUP_MEM_CONT +#define scan_global_lru(sc) (!(sc)->mem_cgroup) +#else +#define scan_global_lru(sc) (1) +#endif + /* * Add a shrinker callback to be called from the vm */ @@ -1280,11 +1286,12 @@ static unsigned long do_try_to_free_pages(struct zone **zones, gfp_t gfp_mask, * Don't shrink slabs when reclaiming memory from * over limit cgroups */ - if (sc->mem_cgroup == NULL) + if (scan_global_lru(sc)) { shrink_slab(sc->nr_scanned, gfp_mask, lru_pages); - if (reclaim_state) { - nr_reclaimed += reclaim_state->reclaimed_slab; - reclaim_state->reclaimed_slab = 0; + if (reclaim_state) { + nr_reclaimed += reclaim_state->reclaimed_slab; + reclaim_state->reclaimed_slab = 0; + } } total_scanned += sc->nr_scanned; if (nr_reclaimed >= sc->swap_cluster_max) { @@ -1311,7 +1318,7 @@ static unsigned long do_try_to_free_pages(struct zone **zones, gfp_t gfp_mask, congestion_wait(WRITE, HZ/10); } /* top priority shrink_caches still had more to do? don't OOM, then */ - if (!sc->all_unreclaimable && sc->mem_cgroup == NULL) + if (!sc->all_unreclaimable && scan_global_lru(sc)) ret = 1; out: /* |