https://github.com/torvalds/linux
Revision dd9daa221e77f642954849a795fa7c59533a9b2f authored by Oleg Nesterov on 13 September 2006, 03:35:55 UTC, committed by Linus Torvalds on 13 September 2006, 14:32:14 UTC
rcu_do_batch() decrements rdp->qlen with irqs enabled.  This is not good,
it can also be modified by call_rcu() from interrupt.

Decrement ->qlen once with irqs disabled, after a main loop.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Dipankar Sarma <dipankar@in.ibm.com>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1 parent 7fbb364
History
Tip revision: dd9daa221e77f642954849a795fa7c59533a9b2f authored by Oleg Nesterov on 13 September 2006, 03:35:55 UTC
[PATCH] rcu_do_batch: make ->qlen decrement irq safe
Tip revision: dd9daa2
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