| commit | c3f0327f8e9d7a503f0d64573c311eddd61f197d | |
| author | Konstantin Khlebnikov <khlebnikov@openvz.org> | |
| Wed, 21 Mar 2012 23:33:48 +0000 (21 16:33 -0700) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Thu, 22 Mar 2012 00:54:55 +0000 (21 17:54 -0700) | ||
| tree | ebc59003d3bef08dd41d073eced2b53970e13662 | treesnapshot (tar.gz zip) |
| parent | dc3f21eadeea6d9898271ff32d35d5e00c6872ea | commitdiff |
mm: add rss counters consistency check
Warn about non-zero rss counters at final mmdrop.
This check will prevent reoccurences of bugs such as that fixed in "mm:
fix rss count leakage during migration".
I didn't hide this check under CONFIG_VM_DEBUG because it rather small and
rss counters cover whole page-table management, so this is a good
invariant.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Warn about non-zero rss counters at final mmdrop.
This check will prevent reoccurences of bugs such as that fixed in "mm:
fix rss count leakage during migration".
I didn't hide this check under CONFIG_VM_DEBUG because it rather small and
rss counters cover whole page-table management, so this is a good
invariant.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| kernel/fork.c | diffblobblamehistory |