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| author | Oleg Nesterov <oleg@redhat.com> | 2014-09-21 19:33:41 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-09-24 12:47:04 (GMT) |
| commit | 5bd96ab6fef66ec6b9f54134364e618fd0f8f2f3 (patch) | |
| tree | abb0e7787c12ea0a37e48277b0a6e8f11d21ce69 /arch/ia64/include/asm/processor.h | |
| parent | 3472eaa1f12e217e2b8b0ef658ff861b2308cbbd (diff) | |
| download | linux-5bd96ab6fef66ec6b9f54134364e618fd0f8f2f3.tar.xz | |
sched: print_rq(): Don't use tasklist_lock
read_lock_irqsave(tasklist_lock) in print_rq() looks strange. We do
not need to disable irqs, and they are already disabled by the caller.
And afaics this lock buys nothing, we can rely on rcu_read_lock().
In this case it makes sense to also move rcu_read_lock/unlock from
the caller to print_rq().
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Kirill Tkhai <tkhai@yandex.ru>
Cc: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20140921193341.GA28628@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/ia64/include/asm/processor.h')
0 files changed, 0 insertions, 0 deletions