X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2Fdec_and_lock.c;h=e73822aa6e9a68131df955c0a6025c7aa5556fc6;hb=e1c56a82b56c1f26a2de88c848d33bcf71a01812;hp=a65c314555416d9f1ea262455d1da313e1959902;hpb=536ea4e4198eeaa5a73fb734ea675e621609bb7e;p=firefly-linux-kernel-4.4.55.git diff --git a/lib/dec_and_lock.c b/lib/dec_and_lock.c index a65c31455541..e73822aa6e9a 100644 --- a/lib/dec_and_lock.c +++ b/lib/dec_and_lock.c @@ -19,11 +19,10 @@ */ int _atomic_dec_and_lock(atomic_t *atomic, spinlock_t *lock) { -#ifdef CONFIG_SMP /* Subtract 1 from counter unless that drops it to 0 (ie. it was 1) */ if (atomic_add_unless(atomic, -1, 1)) return 0; -#endif + /* Otherwise do it the slow way */ spin_lock(lock); if (atomic_dec_and_test(atomic))