The patch titled prevent incorrect oom under split_lru has been removed from the -mm tree. Its filename was vmscan-split-lru-lists-into-anon-file-sets-prevent-incorrect-oom-under-split_lru.patch This patch was dropped because it was folded into vmscan-split-lru-lists-into-anon-file-sets.patch The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: prevent incorrect oom under split_lru From: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> If zone->recent_scanned parameter become inbalanceing anon and file, OOM killer can happened although swappable page exist. So, if priority==0, We should try to reclaim all page for prevent OOM. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Acked-by: Rik van Riel <riel@xxxxxxxxxx> Cc: Lee Schermerhorn <lee.schermerhorn@xxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/vmscan.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff -puN mm/vmscan.c~vmscan-split-lru-lists-into-anon-file-sets-prevent-incorrect-oom-under-split_lru mm/vmscan.c --- a/mm/vmscan.c~vmscan-split-lru-lists-into-anon-file-sets-prevent-incorrect-oom-under-split_lru +++ a/mm/vmscan.c @@ -1292,8 +1292,10 @@ static unsigned long shrink_zone(int pri * kernel will slowly sift through each list. */ scan = zone_page_state(zone, NR_LRU_BASE + l); - scan >>= priority; - scan = (scan * percent[file]) / 100; + if (priority) { + scan >>= priority; + scan = (scan * percent[file]) / 100; + } zone->lru[l].nr_scan += scan + 1; nr[l] = zone->lru[l].nr_scan; if (nr[l] >= sc->swap_cluster_max) _ Patches currently in -mm which might be from kosaki.motohiro@xxxxxxxxxxxxxx are origin.patch vmscan-use-an-indexed-array-for-lru-variables.patch swap-use-an-array-for-the-lru-pagevecs.patch vmscan-split-lru-lists-into-anon-file-sets.patch vmscan-split-lru-lists-into-anon-file-sets-prevent-incorrect-oom-under-split_lru.patch vmscan-split-lru-lists-into-anon-file-sets-split_lru-fix-pagevec_move_tail-doesnt-treat-unevictable-page.patch vmscan-split-lru-lists-into-anon-file-sets-splitlru-memcg-swapbacked-pages-active.patch vmscan-split-lru-lists-into-anon-file-sets-splitlru-bdi_cap_swap_backed.patch vmscan-second-chance-replacement-for-anonymous-pages.patch vmscan-second-chance-replacement-for-anonymous-pages-fix.patch vmscan-second-chance-replacement-for-anonymous-pages-memcg-lru-scan-fix.patch unevictable-lru-infrastructure.patch unevictable-lru-infrastructure-fix.patch unevictable-lru-infrastructure-remove-redundant-page-mapping-check.patch unevictable-lru-infrastructure-putback_lru_page-unevictable-page-handling-rework.patch unevictable-lru-infrastructure-kill-unnecessary-lock_page-in-vmscanc.patch unevictable-lru-infrastructure-revert-migration-change-of-unevictable-lru-infrastructure.patch unevictable-lru-page-statistics.patch unevictable-lru-page-statistics-fix-printk-in-show_free_areas.patch unevictable-lru-page-statistics-units-fix.patch shm_locked-pages-are-unevictable.patch shm_locked-pages-are-unevictable-revert-shm-change-of-shm_locked-pages-are-unevictable-patch.patch mlock-mlocked-pages-are-unevictable.patch mlock-mlocked-pages-are-unevictable-fix.patch mlock-mlocked-pages-are-unevictable-fix-fix.patch mlock-mlocked-pages-are-unevictable-fix-3.patch mlock-mlocked-pages-are-unevictable-fix-fix-munlock-page-table-walk-now-requires-mm.patch mlock-mlocked-pages-are-unevictable-restore-patch-failure-hunk-of-mlock-mlocked-pages-are-unevictablepatch.patch mlock-mlocked-pages-are-unevictable-fix-truncate-race-and-sevaral-comments.patch mmap-handle-mlocked-pages-during-map-remap-unmap.patch mmap-handle-mlocked-pages-during-map-remap-unmap-cleanup.patch fix-double-unlock_page-in-2626-rc5-mm3-kernel-bug-at-mm-filemapc-575.patch introduce-__get_user_pages.patch introduce-__get_user_pages-fix.patch split-lru-munlock-rework.patch revert-to-unevictable-lru-infrastructure-kconfig-fixpatch.patch vmstat-mlocked-pages-statistics.patch vmstat-mlocked-pages-statistics-fix-incorrect-mlocked-field-of-proc-meminfo.patch vmstat-mlocked-pages-statistics-fix.patch swap-cull-unevictable-pages-in-fault-path-fix.patch vmstat-unevictable-and-mlocked-pages-vm-events.patch restore-patch-failure-of-vmstat-unevictable-and-mlocked-pages-vm-eventspatch.patch vmscan-unevictable-lru-scan-sysctl.patch vmscan-unevictable-lru-scan-sysctl-nommu-fix.patch vmscan-unevictable-lru-scan-sysctl-add-sys_device-parameter.patch vmscam-kill-unused-lru-functions.patch mm-more-likely-reclaim-madv_sequential-mappings.patch make-mm-rmapc-anon_vma_cachep-static.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html