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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2021-07-23 11:28:52 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2021-07-23 11:28:52 +0000 |
commit | cca122ce9a0e5c8ebe745b6ae785b5b5c80f4fc6 (patch) | |
tree | ed241f8b8e5344df624226d5217cccec5e84329a /include/spinlock/fas.h | |
parent | Adding upstream version 0.6.0. (diff) | |
download | ck-cca122ce9a0e5c8ebe745b6ae785b5b5c80f4fc6.tar.xz ck-cca122ce9a0e5c8ebe745b6ae785b5b5c80f4fc6.zip |
Adding upstream version 0.7.1.upstream/0.7.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/spinlock/fas.h')
-rw-r--r-- | include/spinlock/fas.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/spinlock/fas.h b/include/spinlock/fas.h index 4e6c123..bfe91fe 100644 --- a/include/spinlock/fas.h +++ b/include/spinlock/fas.h @@ -77,10 +77,11 @@ CK_CC_INLINE static void ck_spinlock_fas_lock(struct ck_spinlock_fas *lock) { - while (ck_pr_fas_uint(&lock->value, true) == true) { - while (ck_pr_load_uint(&lock->value) == true) - ck_pr_stall(); - } + while (CK_CC_UNLIKELY(ck_pr_fas_uint(&lock->value, true) == true)) { + do { + ck_pr_stall(); + } while (ck_pr_load_uint(&lock->value) == true); + } ck_pr_fence_lock(); return; |