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(parent: 2b876f9) | patch
futex: Protect pid lookup in compat code with RCU
authorThomas Gleixner <tglx@linutronix.de>
Tue, 1 Dec 2009 13:02:00 +0000 (14:02 +0100)
committerThomas Gleixner <tglx@linutronix.de>
Wed, 9 Dec 2009 13:22:14 +0000 (14:22 +0100)
commitf409adf5b1db55ece7e80b67a944f9c0d3fe93e9
treeb7bf1b249767764ef8899f8b44cd436a966fe863tree
parent2b876f95d03e226394b5d360c86127cbefaf614bcommit | diff
futex: Protect pid lookup in compat code with RCU

find_task_by_vpid() in compat_sys_get_robust_list() does not require
tasklist_lock. It can be protected with rcu_read_lock as done in
sys_get_robust_list() already.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Darren Hart <dvhltc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
kernel/futex_compat.c diff | blob | history
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