From: Li Xinhai <lixinhai.lxh@gmail.com>
To: linux-mm@kvack.org
Cc: akpm@linux-foundation.org, Michal Hocko <mhocko@suse.com>,
Mike Kravetz <mike.kravetz@oracle.com>
Subject: [PATCH 1/2] mm/mempolicy: Checking hstate for hugetlbfs page in vma_migratable
Date: Tue, 14 Jan 2020 09:16:17 +0000 [thread overview]
Message-ID: <1578993378-10860-1-git-send-email-lixinhai.lxh@gmail.com> (raw)
Checking hstate at early phase when isolating page, instead of during
unmap and move phase, to avoid useless isolation.
Signed-off-by: Li Xinhai <lixinhai.lxh@gmail.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
---
include/linux/mempolicy.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index 5228c62..986e51d 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -185,10 +185,9 @@ static inline bool vma_migratable(struct vm_area_struct *vma)
if (vma_is_dax(vma))
return false;
-#ifndef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
- if (vma->vm_flags & VM_HUGETLB)
+ if (is_vm_hugetlb_page(vma) &&
+ !hugepage_migration_supported(hstate_vma(vma)))
return false;
-#endif
/*
* Migration allocates pages in the highest zone. If we cannot
--
1.8.3.1
next reply other threads:[~2020-01-14 9:18 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-14 9:16 Li Xinhai [this message]
2020-01-14 9:16 ` [PATCH 2/2] mm/mempolicy: Skip walking HUGETLB vma if MPOL_MF_STRICT is specified alone Li Xinhai
2020-01-14 14:09 ` Li Xinhai
2020-01-14 18:27 ` Yang Shi
2020-01-15 1:07 ` Mike Kravetz
2020-01-15 1:24 ` Yang Shi
2020-01-15 4:28 ` Mike Kravetz
2020-01-15 5:23 ` Yang Shi
2020-01-15 7:36 ` Li Xinhai
2020-01-15 17:16 ` Yang Shi
2020-01-15 21:07 ` Mike Kravetz
2020-01-15 21:30 ` Yang Shi
2020-01-15 21:45 ` Mike Kravetz
2020-01-15 21:59 ` Yang Shi
2020-01-16 8:07 ` HORIGUCHI NAOYA(堀口 直也)
2020-01-16 15:32 ` Li Xinhai
2020-01-16 7:59 ` Michal Hocko
2020-01-16 19:22 ` Mike Kravetz
2020-01-17 2:32 ` Yang Shi
2020-01-17 2:38 ` Li Xinhai
2020-01-17 7:57 ` Michal Hocko
2020-01-17 12:05 ` Li Xinhai
2020-01-17 15:20 ` Michal Hocko
2020-01-17 15:46 ` Li Xinhai
2020-01-20 12:45 ` Michal Hocko
2020-01-21 14:15 ` Li Xinhai
2020-01-21 14:53 ` Michal Hocko
2020-01-22 13:55 ` Li Xinhai
2020-01-14 19:12 ` [PATCH 1/2] mm/mempolicy: Checking hstate for hugetlbfs page in vma_migratable Mike Kravetz
2020-01-15 1:25 ` Andrew Morton
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