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| author | Joonsoo Kim <iamjoonsoo.kim@lge.com> | 2013-09-11 14:21:58 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-11 15:57:45 -0700 |
| commit | 07443a85ad90c7b62fbe11dcd3d6a1de1e10516f (patch) | |
| tree | 2193cff9bf1cb0f8d9f90dd2039e068f4cb67823 /mm/migrate.c | |
| parent | 8312034f3604bc0339c40545c538116f4ddad152 (diff) | |
| download | linux-07443a85ad90c7b62fbe11dcd3d6a1de1e10516f.tar.bz2 | |
mm, hugetlb: return a reserved page to a reserved pool if failed
If we fail with a reserved page, just calling put_page() is not
sufficient, because put_page() invoke free_huge_page() at last step and it
doesn't know whether a page comes from a reserved pool or not. So it
doesn't do anything related to reserved count. This makes reserve count
lower than how we need, because reserve count already decrease in
dequeue_huge_page_vma(). This patch fix this situation.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/migrate.c')
0 files changed, 0 insertions, 0 deletions