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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2021-07-23 11:29:01 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2021-07-23 11:37:28 +0000 |
| commit | a7283ab143d4e95e8f5f22b58c61cb4e2f604749 (patch) | |
| tree | 3ec5165ac7f1299f5c0dc3e41d7560a06e6267f5 /include/spinlock/fas.h | |
| parent | Adding debian version 0.6.0-2. (diff) | |
| download | ck-a7283ab143d4e95e8f5f22b58c61cb4e2f604749.tar.xz ck-a7283ab143d4e95e8f5f22b58c61cb4e2f604749.zip | |
Merging upstream version 0.7.1 (Closes: #991419).
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; |