Commit-ID: 90d1098478fb08a1ef166fe91622d8046869e17b Gitweb: http://git.kernel.org/tip/90d1098478fb08a1ef166fe91622d8046869e17b Author: Davidlohr Bueso <d...@stgolabs.net> AuthorDate: Wed, 9 Mar 2016 17:55:35 -0800 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Thu, 10 Mar 2016 10:28:35 +0100
locking/csd_lock: Explicitly inline csd_lock*() helpers While the compiler tends to already to it for us (except for csd_unlock), make it explicit. These helpers mainly deal with the ->flags, are short-lived and can be called, for example, from smp_call_function_many(). Signed-off-by: Davidlohr Bueso <dbu...@suse.de> Acked-by: Peter Zijlstra (Intel) <pet...@infradead.org> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: d...@stgolabs.net Link: http://lkml.kernel.org/r/1457574936-19065-2-git-send-email-dbu...@suse.de Signed-off-by: Ingo Molnar <mi...@kernel.org> --- kernel/smp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/smp.c b/kernel/smp.c index d903c02..5099db1 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -105,13 +105,13 @@ void __init call_function_init(void) * previous function call. For multi-cpu calls its even more interesting * as we'll have to ensure no other cpu is observing our csd. */ -static void csd_lock_wait(struct call_single_data *csd) +static __always_inline void csd_lock_wait(struct call_single_data *csd) { while (smp_load_acquire(&csd->flags) & CSD_FLAG_LOCK) cpu_relax(); } -static void csd_lock(struct call_single_data *csd) +static __always_inline void csd_lock(struct call_single_data *csd) { csd_lock_wait(csd); csd->flags |= CSD_FLAG_LOCK; @@ -124,7 +124,7 @@ static void csd_lock(struct call_single_data *csd) smp_wmb(); } -static void csd_unlock(struct call_single_data *csd) +static __always_inline void csd_unlock(struct call_single_data *csd) { WARN_ON(!(csd->flags & CSD_FLAG_LOCK));
