]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
hugetlbfs: add minimum size accounting to subpools
authorMike Kravetz <mike.kravetz@oracle.com>
Wed, 15 Apr 2015 23:13:39 +0000 (16:13 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 15 Apr 2015 23:35:17 +0000 (16:35 -0700)
commit1c5ecae3a93fa1ab51a784d77e9c9ed54e67c65f
treedf351d81d1fc493470d87cda2044d592e06195a9
parentc6a918200c4f4ebf74b7e1ae4fea9115c7b297f8
hugetlbfs: add minimum size accounting to subpools

The same routines that perform subpool maximum size accounting
hugepage_subpool_get/put_pages() are modified to also perform minimum size
accounting.  When a delta value is passed to these routines, calculate how
global reservations must be adjusted to maintain the subpool minimum size.
 The routines now return this global reserve count adjustment.  This
global reserve count adjustment is then passed to the global accounting
routine hugetlb_acct_memory().

Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/hugetlb.c