| commit | 1e50df39f6e2c3a4a3394df62baa8a213df16c54 | |
| author | KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | |
| Thu, 13 Jan 2011 23:46:14 +0000 (13 15:46 -0800) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Fri, 14 Jan 2011 01:32:36 +0000 (13 17:32 -0800) | ||
| tree | d437981aec4fc5cf84178f7afcca83f0ef40aea1 | treesnapshot (tar.gz zip) |
| parent | 53a7706d5ed8f1a53ba062b318773160cc476dde | commitdiff |
mempolicy: remove tasklist_lock from migrate_pages
Today, tasklist_lock in migrate_pages doesn't protect anything.
rcu_read_lock() provide enough protection from pid hash walk.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reported-by: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Today, tasklist_lock in migrate_pages doesn't protect anything.
rcu_read_lock() provide enough protection from pid hash walk.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reported-by: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| mm/mempolicy.c | diffblobblamehistory |