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| author | Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> | 2015-09-23 00:59:14 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-23 01:09:53 +0300 |
| commit | 3aaa76e125c1dd58c9b599baa8c6021896874c12 (patch) | |
| tree | d733e970440cbe96dc3fe78cbaf56b1581eb036b /drivers/firmware | |
| parent | 8a04446ab0cf4f35d9f583cd6adcbf7c534e4995 (diff) | |
| download | linux-3aaa76e125c1dd58c9b599baa8c6021896874c12.tar.xz | |
mm: migrate: hugetlb: putback destination hugepage to active list
Since commit bcc54222309c ("mm: hugetlb: introduce page_huge_active")
each hugetlb page maintains its active flag to avoid a race condition
betwe= en multiple calls of isolate_huge_page(), but current kernel
doesn't set the f= lag on a hugepage allocated by migration because the
proper putback routine isn= 't called. This means that users could
still encounter the race referred to by bcc54222309c in this special
case, so this patch fixes it.
Fixes: bcc54222309c ("mm: hugetlb: introduce page_huge_active")
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org> [4.1.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/firmware')
0 files changed, 0 insertions, 0 deletions