After commit:8969a5ede0f9e17da4b943712429aef2c9bcd82b "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. Remote it. Signed-off-by: Xie XiuQi <xiexi...@huawei.com> Cc: Peter Zijlstra <pet...@infradead.org> Link: https://patchwork.kernel.org/patch/2834744/ --- kernel/smp.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/kernel/smp.c b/kernel/smp.c index fe9f773..7332697 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -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); } } -- 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
