Subject: [folded-merged] mm-vmscan-do-not-throttle-based-on-pfmemalloc-reserves-if-node-has-no-zone_normal-fix.patch removed from -mm tree To: mgorman@xxxxxxx,mm-commits@xxxxxxxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Wed, 04 Jun 2014 15:26:56 -0700 The patch titled Subject: mm-vmscan-do-not-throttle-based-on-pfmemalloc-reserves-if-node-has-no-zone_normal-fix has been removed from the -mm tree. Its filename was mm-vmscan-do-not-throttle-based-on-pfmemalloc-reserves-if-node-has-no-zone_normal-fix.patch This patch was dropped because it was folded into mm-vmscan-do-not-throttle-based-on-pfmemalloc-reserves-if-node-has-no-zone_normal.patch ------------------------------------------------------ From: Mel Gorman <mgorman@xxxxxxx> Subject: mm-vmscan-do-not-throttle-based-on-pfmemalloc-reserves-if-node-has-no-zone_normal-fix enhance comment Cc: Mel Gorman <mgorman@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/vmscan.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff -puN mm/vmscan.c~mm-vmscan-do-not-throttle-based-on-pfmemalloc-reserves-if-node-has-no-zone_normal-fix mm/vmscan.c --- a/mm/vmscan.c~mm-vmscan-do-not-throttle-based-on-pfmemalloc-reserves-if-node-has-no-zone_normal-fix +++ a/mm/vmscan.c @@ -2595,7 +2595,17 @@ static bool throttle_direct_reclaim(gfp_ /* * Check if the pfmemalloc reserves are ok by finding the first node - * with a usable ZONE_NORMAL or lower zone + * with a usable ZONE_NORMAL or lower zone. The expectation is that + * GFP_KERNEL will be required for allocating network buffers when + * swapping over the network so ZONE_HIGHMEM is unusable. + * + * Throttling is based on the first usable node and throttled processes + * wait on a queue until kswapd makes progress and wakes them. There + * is an affinity then between processes waking up and where reclaim + * progress has been made assuming the process wakes on the same node. + * More importantly, processes running on remote nodes will not compete + * for remote pfmemalloc reserves and processes on different nodes + * should make reasonable progress. */ for_each_zone_zonelist_nodemask(zone, z, zonelist, gfp_mask, nodemask) { _ Patches currently in -mm which might be from mgorman@xxxxxxx are origin.patch x86-require-x86-64-for-automatic-numa-balancing.patch x86-define-_page_numa-by-reusing-software-bits-on-the-pmd-and-pte-levels.patch mm-only-force-scan-in-reclaim-when-none-of-the-lrus-are-big-enough.patch mm-huge_memoryc-complete-conversion-to-pr_foo.patch mm-disable-zone_reclaim_mode-by-default.patch mm-page_alloc-do-not-cache-reclaim-distances.patch mm-page_alloc-prevent-migrate_reserve-pages-from-being-misplaced.patch mm-compaction-clean-up-unused-code-lines.patch mm-compaction-cleanup-isolate_freepages.patch mm-swapc-clean-up-lru_cache_add-functions.patch mm-vmscan-do-not-throttle-based-on-pfmemalloc-reserves-if-node-has-no-zone_normal.patch mm-numa-add-migrated-transhuge-pages-to-lru-the-same-way-as-base-pages.patch mm-swapc-introduce-put_refcounted_compound_page-helpers-for-spliting-put_compound_page.patch mm-swapc-split-put_compound_page-function.patch mm-introdule-compound_head_by_tail.patch mm-x86-pgtable-drop-unneeded-preprocessor-ifdef.patch mm-x86-pgtable-require-x86_64-for-soft-dirty-tracker.patch mm-mempolicyc-parameter-doc-uniformization.patch mm-migration-add-destination-page-freeing-callback.patch mm-compaction-return-failed-migration-target-pages-back-to-freelist.patch mm-compaction-add-per-zone-migration-pfn-cache-for-async-compaction.patch mm-compaction-embed-migration-mode-in-compact_control.patch mm-thp-avoid-excessive-compaction-latency-during-fault.patch mm-thp-avoid-excessive-compaction-latency-during-fault-fix.patch mm-compaction-terminate-async-compaction-when-rescheduling.patch mm-compaction-do-not-count-migratepages-when-unnecessary.patch mm-compaction-avoid-rescanning-pageblocks-in-isolate_freepages.patch swap-change-swap_info-singly-linked-list-to-list_head.patch plist-add-helper-functions.patch plist-add-plist_requeue.patch swap-change-swap_list_head-to-plist-add-swap_avail_head.patch mm-page_alloc-do-not-update-zlc-unless-the-zlc-is-active.patch mm-page_alloc-do-not-treat-a-zone-that-cannot-be-used-for-dirty-pages-as-full.patch jump_label-expose-the-reference-count.patch mm-page_alloc-use-jump-labels-to-avoid-checking-number_of_cpusets.patch mm-page_alloc-use-jump-labels-to-avoid-checking-number_of_cpusets-fix.patch mm-page_alloc-only-check-the-zone-id-check-if-pages-are-buddies.patch mm-page_alloc-only-check-the-alloc-flags-and-gfp_mask-for-dirty-once.patch mm-page_alloc-take-the-alloc_no_watermark-check-out-of-the-fast-path.patch mm-page_alloc-use-word-based-accesses-for-get-set-pageblock-bitmaps.patch mm-page_alloc-reduce-number-of-times-page_to_pfn-is-called.patch mm-page_alloc-lookup-pageblock-migratetype-with-irqs-enabled-during-free.patch mm-page_alloc-use-unsigned-int-for-order-in-more-places.patch mm-page_alloc-convert-hot-cold-parameter-and-immediate-callers-to-bool.patch mm-shmem-avoid-atomic-operation-during-shmem_getpage_gfp.patch mm-do-not-use-atomic-operations-when-releasing-pages.patch mm-do-not-use-unnecessary-atomic-operations-when-adding-pages-to-the-lru.patch fs-buffer-do-not-use-unnecessary-atomic-operations-when-discarding-buffers.patch fs-buffer-do-not-use-unnecessary-atomic-operations-when-discarding-buffers-fix.patch mm-non-atomically-mark-page-accessed-during-page-cache-allocation-where-possible.patch mm-non-atomically-mark-page-accessed-during-page-cache-allocation-where-possiblefix-2.patch mm-page_alloc-calculate-classzone_idx-once-from-the-zonelist-ref.patch mm-page_alloc-calculate-classzone_idx-once-from-the-zonelist-ref-fix.patch mm-avoid-unnecessary-atomic-operations-during-end_page_writeback.patch mm-compaction-properly-signal-and-act-upon-lock-and-need_sched-contention.patch fs-superblock-unregister-sb-shrinker-before-kill_sb.patch fs-superblock-avoid-locking-counting-inodes-and-dentries-before-reclaiming-them.patch mm-vmscan-use-proportional-scanning-during-direct-reclaim-and-full-scan-at-def_priority.patch mm-nominate-faultaround-area-in-bytes-rather-then-page-order.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