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generic-ipi: Kill unnecessary variable - csd_flags 

After commit 8969a5ede0
("generic-ipi: remove kmalloc()"), wait = 0 can be guaranteed,
and all callsites of generic_exec_single() do an unconditional
csd_lock() now.

So csd_flags is unnecessary now. Remove it.

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Link: http://lkml.kernel.org/r/51F72DA1.7010401@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Xie XiuQi 2013-07-30 11:06:09 +08:00 committed by Ingo Molnar
parent 323f54ed0f
commit 46591962cb
1 changed files with 1 additions and 13 deletions
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14
kernel/smp.c
View File

@ -186,25 +186,13 @@ void generic_smp_call_function_single_interrupt(void)
while (!list_empty(&list)) {
struct call_single_data *csd;
unsigned int csd_flags;
csd = list_entry(list.next, struct call_single_data, list);
list_del(&csd->list);
/*
* 'csd' can be invalid after this call if flags == 0
* (when called through generic_exec_single()),
* so save them away before making the call:
*/
csd_flags = csd->flags;
csd->func(csd->info);
/*
* Unlocked CSDs are valid through generic_exec_single():
*/
if (csd_flags & CSD_FLAG_LOCK)
csd_unlock(csd);
csd_unlock(csd);
}
}