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>
parent
53a7706d
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