The patch titled
Subject: kernel, cpuset: remove exception for __GFP_THISNODE
has been added to the -mm tree. Its filename is
kernel-cpuset-remove-exception-for-__gfp_thisnode.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kernel-cpuset-remove-exception-for-__gfp_thisnode.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kernel-cpuset-remove-exception-for-__gfp_thisnode.patch
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From: David Rientjes <rientjes@xxxxxxxxxx>
Subject: kernel, cpuset: remove exception for __GFP_THISNODE
Nothing calls __cpuset_node_allowed() with __GFP_THISNODE set anymore, so
remove the obscure comment about it and its special-case exception.
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Pravin Shelar <pshelar@xxxxxxxxxx>
Cc: Jarno Rajahalme <jrajahalme@xxxxxxxxxx>
Cc: Li Zefan <lizefan@xxxxxxxxxx>
Cc: Greg Thelen <gthelen@xxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/cpuset.c | 18 +++++-------------
1 file changed, 5 insertions(+), 13 deletions(-)
diff -puN kernel/cpuset.c~kernel-cpuset-remove-exception-for-__gfp_thisnode kernel/cpuset.c
--- a/kernel/cpuset.c~kernel-cpuset-remove-exception-for-__gfp_thisnode
+++ a/kernel/cpuset.c
@@ -2445,20 +2445,12 @@ static struct cpuset *nearest_hardwall_a
* @node: is this an allowed node?
* @gfp_mask: memory allocation flags
*
- * If we're in interrupt, yes, we can always allocate. If __GFP_THISNODE is
- * set, yes, we can always allocate. If node is in our task's mems_allowed,
- * yes. If it's not a __GFP_HARDWALL request and this node is in the nearest
- * hardwalled cpuset ancestor to this task's cpuset, yes. If the task has been
- * OOM killed and has access to memory reserves as specified by the TIF_MEMDIE
- * flag, yes.
+ * If we're in interrupt, yes, we can always allocate. If @node is set in
+ * current's mems_allowed, yes. If it's not a __GFP_HARDWALL request and this
+ * node is set in the nearest hardwalled cpuset ancestor to current's cpuset,
+ * yes. If current has access to memory reserves due to TIF_MEMDIE, yes.
* Otherwise, no.
*
- * The __GFP_THISNODE placement logic is really handled elsewhere,
- * by forcibly using a zonelist starting at a specified node, and by
- * (in get_page_from_freelist()) refusing to consider the zones for
- * any node on the zonelist except the first. By the time any such
- * calls get to this routine, we should just shut up and say 'yes'.
- *
* GFP_USER allocations are marked with the __GFP_HARDWALL bit,
* and do not allow allocations outside the current tasks cpuset
* unless the task has been OOM killed as is marked TIF_MEMDIE.
@@ -2494,7 +2486,7 @@ int __cpuset_node_allowed(int node, gfp_
int allowed; /* is allocation in zone z allowed? */
unsigned long flags;
- if (in_interrupt() || (gfp_mask & __GFP_THISNODE))
+ if (in_interrupt())
return 1;
if (node_isset(node, current->mems_allowed))
return 1;
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
origin.patch
mm-hugetlb-close-race-when-setting-pagetail-for-gigantic-pages.patch
mm-slub-parse-slub_debug-o-option-in-switch-statement.patch
mm-rename-foll_mlock-to-foll_populate.patch
mm-rename-__mlock_vma_pages_range-to-populate_vma_page_range.patch
mm-move-gup-posix-mlock-error-conversion-out-of-__mm_populate.patch
mm-move-mm_populate-related-code-to-mm-gupc.patch
mm-hotplug-fix-concurrent-memory-hot-add-deadlock.patch
mm-cma-change-fallback-behaviour-for-cma-freepage.patch
mm-page_alloc-factor-out-fallback-freepage-checking.patch
mm-compaction-enhance-compaction-finish-condition.patch
mm-compaction-enhance-compaction-finish-condition-fix.patch
mm-incorporate-zero-pages-into-transparent-huge-pages.patch
mm-incorporate-zero-pages-into-transparent-huge-pages-fix.patch
mm-completely-remove-dumping-per-cpu-lists-from-show_mem.patch
mm-mempolicy-migrate_to_node-should-only-migrate-to-node.patch
mm-remove-gfp_thisnode.patch
mm-thp-really-limit-transparent-hugepage-allocation-to-local-node.patch
kernel-cpuset-remove-exception-for-__gfp_thisnode.patch
mm-utilc-add-kstrimdup.patch
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