diff options
| author | Nishanth Aravamudan <nacc@us.ibm.com> | 2008-02-08 04:18:18 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-02-25 16:18:32 -0800 |
| commit | 091a61f602b7db7f4d1fdcb41e6ff9a97a6e0cce (patch) | |
| tree | 7fc9bcea67c3491bbdc10aa3310ca08f498aa1aa /kernel | |
| parent | 0cc3ec3d1add90d860786382dc5abe7ca94d242e (diff) | |
hugetlb: add locking for overcommit sysctl
patch a3d0c6aa1bb342b9b2c7b123b52ac2f48a4d4d0a in mainline.
When I replaced hugetlb_dynamic_pool with nr_overcommit_hugepages I used
proc_doulongvec_minmax() directly. However, hugetlb.c's locking rules
require that all counter modifications occur under the hugetlb_lock. Add a
callback into the hugetlb code similar to the one for nr_hugepages. Grab
the lock around the manipulation of nr_overcommit_hugepages in
proc_doulongvec_minmax().
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Acked-by: Adam Litke <agl@us.ibm.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sysctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index c68f68dcc605..e3e0ee388857 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -910,7 +910,7 @@ static struct ctl_table vm_table[] = { .data = &nr_overcommit_huge_pages, .maxlen = sizeof(nr_overcommit_huge_pages), .mode = 0644, - .proc_handler = &proc_doulongvec_minmax, + .proc_handler = &hugetlb_overcommit_handler, }, #endif { |