diff options
Diffstat (limited to 'fs/proc/kcore.c')
| -rw-r--r-- | fs/proc/kcore.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c index b0b9a76f28d6..e83f15a4f66d 100644 --- a/fs/proc/kcore.c +++ b/fs/proc/kcore.c @@ -118,7 +118,7 @@ static void __kcore_update_ram(struct list_head *list) LIST_HEAD(garbage); write_lock(&kclist_lock); - if (kcore_need_update) { + if (xchg(&kcore_need_update, 0)) { list_for_each_entry_safe(pos, tmp, &kclist_head, list) { if (pos->type == KCORE_RAM || pos->type == KCORE_VMEMMAP) @@ -127,7 +127,6 @@ static void __kcore_update_ram(struct list_head *list) list_splice_tail(list, &kclist_head); } else list_splice(list, &garbage); - kcore_need_update = 0; proc_root_kcore->size = get_kcore_size(&nphdr, &size); write_unlock(&kclist_lock); @@ -593,9 +592,8 @@ static int __meminit kcore_callback(struct notifier_block *self, switch (action) { case MEM_ONLINE: case MEM_OFFLINE: - write_lock(&kclist_lock); kcore_need_update = 1; - write_unlock(&kclist_lock); + break; } return NOTIFY_OK; } |