diff options
author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-06-28 18:11:46 -0400 |
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committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-06-28 18:26:04 -0400 |
commit | 34b5654d9eb1999704e75d964645e3aa9b78e249 (patch) | |
tree | 27269b040f9128cf33155a9ca47038703efc5606 /include/linux/closure.h | |
parent | b0eb3c29304f9a4ca39c8534bb6476b170b2a7d0 (diff) |
Update bcachefs sources to 9404a01d3dc5 bcachefs: Make read_only a mount option again, but hiddenv1.9.2
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'include/linux/closure.h')
-rw-r--r-- | include/linux/closure.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/linux/closure.h b/include/linux/closure.h index 99155df1..59b8c06b 100644 --- a/include/linux/closure.h +++ b/include/linux/closure.h @@ -285,6 +285,21 @@ static inline void closure_get(struct closure *cl) } /** + * closure_get_not_zero + */ +static inline bool closure_get_not_zero(struct closure *cl) +{ + unsigned old = atomic_read(&cl->remaining); + do { + if (!(old & CLOSURE_REMAINING_MASK)) + return false; + + } while (!atomic_try_cmpxchg_acquire(&cl->remaining, &old, old + 1)); + + return true; +} + +/** * closure_init - Initialize a closure, setting the refcount to 1 * @cl: closure to initialize * @parent: parent of the new closure. cl will take a refcount on it for its @@ -310,6 +325,12 @@ static inline void closure_init_stack(struct closure *cl) atomic_set(&cl->remaining, CLOSURE_REMAINING_INITIALIZER); } +static inline void closure_init_stack_release(struct closure *cl) +{ + memset(cl, 0, sizeof(struct closure)); + atomic_set_release(&cl->remaining, CLOSURE_REMAINING_INITIALIZER); +} + /** * closure_wake_up - wake up all closures on a wait list, * with memory barrier @@ -355,6 +376,8 @@ do { \ */ #define closure_return(_cl) continue_at((_cl), NULL, NULL) +void closure_return_sync(struct closure *cl); + /** * continue_at_nobarrier - jump to another function without barrier * |