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 <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Aneesh Kumar <[email protected]>
Cc: Joonsoo Kim <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Rientjes <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions