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(parent: 6ad4c18) | patch
sched: Protect task->cpus_allowed access in sched_getaffinity()
authorThomas Gleixner <tglx@linutronix.de>
Tue, 8 Dec 2009 20:24:16 +0000 (20:24 +0000)
committerIngo Molnar <mingo@elte.hu>
Wed, 9 Dec 2009 09:01:06 +0000 (10:01 +0100)
commit3160568371da441b7f2fb57f2f1225404207e8f2
treebf717db23c352fe14138863157433a79f5edf3e6tree | snapshot
parent6ad4c18884e864cf4c77f9074d3d1816063f99cdcommit | diff
sched: Protect task->cpus_allowed access in sched_getaffinity()

sched_getaffinity() is not protected against a concurrent
modification of the tasks affinity.

Serialize the access with task_rq_lock(task).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20091208202026.769251187@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/sched.c diff | blob | history
Full containers within linux kernel