diff options
| author | Cody P Schafer <cody@linux.vnet.ibm.com> | 2013-07-03 15:02:09 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-03 16:07:29 -0700 |
| commit | 114d4b79f7e561fd76fb98eba79e18df7cdd60f0 (patch) | |
| tree | 20d1e2b060b4272e9a18894538d6beb551d5b7c8 /include/linux/mmzone.h | |
| parent | 72c3b51bda557ab38d6c5b2af750c27cba15f828 (diff) | |
mmzone: note that node_size_lock should be manipulated via pgdat_resize_lock()
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/mmzone.h')
| -rw-r--r-- | include/linux/mmzone.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 9ec7cffcae21..e511f9429f1e 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -733,6 +733,9 @@ typedef struct pglist_data { * or node_spanned_pages stay constant. Holding this will also * guarantee that any pfn_valid() stays that way. * + * pgdat_resize_lock() and pgdat_resize_unlock() are provided to + * manipulate node_size_lock without checking for CONFIG_MEMORY_HOTPLUG. + * * Nests above zone->lock and zone->span_seqlock */ spinlock_t node_size_lock; |