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| author | Oleg Nesterov | 2006-03-24 12:15:50 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2006-03-24 16:33:20 +0100 |
| commit | caa9ee771de3195ae85ac6f8cb550f53e9ecdd82 (patch) | |
| tree | 8aa692f337e071718e698baefc631b58b446beff /fs/9p/mux.c | |
| parent | [PATCH] Range checking in do_proc_dointvec_(userhz_)jiffies_conv (diff) | |
| download | kernel-qcow2-linux-caa9ee771de3195ae85ac6f8cb550f53e9ecdd82.tar.gz kernel-qcow2-linux-caa9ee771de3195ae85ac6f8cb550f53e9ecdd82.tar.xz kernel-qcow2-linux-caa9ee771de3195ae85ac6f8cb550f53e9ecdd82.zip | |
[PATCH] rcu_process_callbacks: don't cli() while testing ->nxtlist
__rcu_process_callbacks() disables interrupts to protect itself from
call_rcu() which adds new entries to ->nxtlist.
However we can check "->nxtlist != NULL" with interrupts enabled, we can't
get "false positives" because call_rcu() can only change this condition
from 0 to 1.
Tested with rcutorture.ko.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: 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>
Diffstat (limited to 'fs/9p/mux.c')
0 files changed, 0 insertions, 0 deletions