Subject: + mm-keep-page-cache-radix-tree-nodes-in-check-fix-fix-fix.patch added to -mm tree
To: hannes@xxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 11 Feb 2014 14:26:55 -0800
The patch titled
Subject: mm-keep-page-cache-radix-tree-nodes-in-check-fix-fix-fix
has been added to the -mm tree. Its filename is
mm-keep-page-cache-radix-tree-nodes-in-check-fix-fix-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-keep-page-cache-radix-tree-nodes-in-check-fix-fix-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-keep-page-cache-radix-tree-nodes-in-check-fix-fix-fix.patch
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------------------------------------------------------
From: Johannes Weiner <hannes@xxxxxxxxxxx>
Subject: mm-keep-page-cache-radix-tree-nodes-in-check-fix-fix-fix
document IRQ-disabling around list_lru API calls
Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/workingset.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN mm/workingset.c~mm-keep-page-cache-radix-tree-nodes-in-check-fix-fix-fix mm/workingset.c
--- a/mm/workingset.c~mm-keep-page-cache-radix-tree-nodes-in-check-fix-fix-fix
+++ a/mm/workingset.c
@@ -273,6 +273,7 @@ static unsigned long count_shadow_nodes(
unsigned long max_nodes;
unsigned long pages;
+ /* list_lru lock nests inside IRQ-safe mapping->tree_lock */
local_irq_disable();
shadow_nodes = list_lru_count_node(&workingset_shadow_nodes, sc->nid);
local_irq_enable();
@@ -373,6 +374,7 @@ static unsigned long scan_shadow_nodes(s
{
unsigned long ret;
+ /* list_lru lock nests inside IRQ-safe mapping->tree_lock */
local_irq_disable();
ret = list_lru_walk_node(&workingset_shadow_nodes, sc->nid,
shadow_lru_isolate, NULL, &sc->nr_to_scan);
_
Patches currently in -mm which might be from hannes@xxxxxxxxxxx are
mm-thp-fix-infinite-loop-on-memcg-oom.patch
memcg-change-oom_info_lock-to-mutex.patch
mm-vmscan-respect-numa-policy-mask-when-shrinking-slab-on-direct-reclaim.patch
mm-vmscan-move-call-to-shrink_slab-to-shrink_zones.patch
mm-vmscan-remove-shrink_control-arg-from-do_try_to_free_pages.patch
mm-vmstat-fix-up-zone-state-accounting.patch
mm-vmstat-fix-up-zone-state-accounting-fix.patch
fs-cachefiles-use-add_to_page_cache_lru.patch
lib-radix-tree-radix_tree_delete_item.patch
mm-shmem-save-one-radix-tree-lookup-when-truncating-swapped-pages.patch
mm-filemap-move-radix-tree-hole-searching-here.patch
mm-fs-prepare-for-non-page-entries-in-page-cache-radix-trees.patch
mm-fs-store-shadow-entries-in-page-cache.patch
mm-thrash-detection-based-file-cache-sizing.patch
lib-radix_tree-tree-node-interface.patch
mm-keep-page-cache-radix-tree-nodes-in-check.patch
mm-keep-page-cache-radix-tree-nodes-in-check-fix.patch
mm-keep-page-cache-radix-tree-nodes-in-check-fix-fix.patch
mm-keep-page-cache-radix-tree-nodes-in-check-fix-fix-fix.patch
pagewalk-update-page-table-walker-core.patch
pagewalk-add-walk_page_vma.patch
smaps-redefine-callback-functions-for-page-table-walker.patch
clear_refs-redefine-callback-functions-for-page-table-walker.patch
pagemap-redefine-callback-functions-for-page-table-walker.patch
numa_maps-redefine-callback-functions-for-page-table-walker.patch
memcg-redefine-callback-functions-for-page-table-walker.patch
madvise-redefine-callback-functions-for-page-table-walker.patch
arch-powerpc-mm-subpage-protc-use-walk_page_vma-instead-of-walk_page_range.patch
pagewalk-remove-argument-hmask-from-hugetlb_entry.patch
mempolicy-apply-page-table-walker-on-queue_pages_range.patch
drop_caches-add-some-documentation-and-info-message.patch
linux-next.patch
debugging-keep-track-of-page-owners.patch
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