Subject: + mm-hugetlb-move-up-the-code-which-check-availability-of-free-huge-page.patch added to -mm tree
To: iamjoonsoo.kim@xxxxxxx,aneesh.kumar@xxxxxxxxxxxxxxxxxx,david@xxxxxxxxxxxxxxxxxxxxx,davidlohr.bueso@xxxxxx,dhillf@xxxxxxxxx,hughd@xxxxxxxxxx,kamezawa.hiroyu@xxxxxxxxxxxxxx,liwanp@xxxxxxxxxxxxxxxxxx,mgorman@xxxxxxx,mhocko@xxxxxxx,n-horiguchi@xxxxxxxxxxxxx,riel@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Mon, 29 Jul 2013 15:07:45 -0700
The patch titled
Subject: mm, hugetlb: move up the code which check availability of free huge page
has been added to the -mm tree. Its filename is
mm-hugetlb-move-up-the-code-which-check-availability-of-free-huge-page.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlb-move-up-the-code-which-check-availability-of-free-huge-page.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-hugetlb-move-up-the-code-which-check-availability-of-free-huge-page.patch
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------------------------------------------------------
From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Subject: mm, hugetlb: move up the code which check availability of free huge page
In this time we are holding a hugetlb_lock, so hstate values can't be
changed. If we don't have any usable free huge page in this time, we
don't need to proceede the processing. So move this code up.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxx>
Reviewed-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Cc: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Acked-by: Hillf Danton <dhillf@xxxxxxxxx>
Cc: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Davidlohr Bueso <davidlohr.bueso@xxxxxx>
Cc: David Gibson <david@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/hugetlb.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff -puN mm/hugetlb.c~mm-hugetlb-move-up-the-code-which-check-availability-of-free-huge-page mm/hugetlb.c
--- a/mm/hugetlb.c~mm-hugetlb-move-up-the-code-which-check-availability-of-free-huge-page
+++ a/mm/hugetlb.c
@@ -539,10 +539,6 @@ static struct page *dequeue_huge_page_vm
struct zoneref *z;
unsigned int cpuset_mems_cookie;
-retry_cpuset:
- cpuset_mems_cookie = get_mems_allowed();
- zonelist = huge_zonelist(vma, address,
- htlb_alloc_mask, &mpol, &nodemask);
/*
* A child process with MAP_PRIVATE mappings created by their parent
* have no page reserves. This check ensures that reservations are
@@ -556,6 +552,11 @@ retry_cpuset:
if (avoid_reserve && h->free_huge_pages - h->resv_huge_pages == 0)
goto err;
+retry_cpuset:
+ cpuset_mems_cookie = get_mems_allowed();
+ zonelist = huge_zonelist(vma, address,
+ htlb_alloc_mask, &mpol, &nodemask);
+
for_each_zone_zonelist_nodemask(zone, z, zonelist,
MAX_NR_ZONES - 1, nodemask) {
if (cpuset_zone_allowed_softwall(zone, htlb_alloc_mask)) {
@@ -574,7 +575,6 @@ retry_cpuset:
return page;
err:
- mpol_cond_put(mpol);
return NULL;
}
_
Patches currently in -mm which might be from iamjoonsoo.kim@xxxxxxx are
mm-hugetlb-move-up-the-code-which-check-availability-of-free-huge-page.patch
mm-hugetlb-trivial-commenting-fix.patch
mm-hugetlb-clean-up-alloc_huge_page.patch
mm-hugetlb-fix-and-clean-up-node-iteration-code-to-alloc-or-free.patch
mm-hugetlb-remove-redundant-list_empty-check-in-gather_surplus_pages.patch
mm-hugetlb-do-not-use-a-page-in-page-cache-for-cow-optimization.patch
mm-hugetlb-add-vm_noreserve-check-in-vma_has_reserves.patch
mm-hugetlb-remove-decrement_hugepage_resv_vma.patch
mm-hugetlb-decrement-reserve-count-if-vm_noreserve-alloc-page-cache.patch
mm-hugetlb-decrement-reserve-count-if-vm_noreserve-alloc-page-cache-fix.patch
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