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authorKent Overstreet <kent.overstreet@linux.dev>2023-03-04 02:39:39 -0500
committerKent Overstreet <kent.overstreet@linux.dev>2023-03-13 11:34:52 -0400
commitf31cd70e4d2dfd30a3d8ab85b95eb3ff0179da32 (patch)
treec6658858b13ade59ccc2f623d80ad4aee5848f90
parentbaf0afc90750366a9221dc9917b09b78d1f70ef6 (diff)
closures: closure_nr_remaining()
Factor out a new helper, which returns the number of events outstanding. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
-rw-r--r--include/linux/closure.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/closure.h b/include/linux/closure.h
index 36b4a83f9b77..722a586bb224 100644
--- a/include/linux/closure.h
+++ b/include/linux/closure.h
@@ -172,6 +172,11 @@ void __closure_wake_up(struct closure_waitlist *list);
bool closure_wait(struct closure_waitlist *list, struct closure *cl);
void __closure_sync(struct closure *cl);
+static inline unsigned closure_nr_remaining(struct closure *cl)
+{
+ return atomic_read(&cl->remaining) & CLOSURE_REMAINING_MASK;
+}
+
/**
* closure_sync - sleep until a closure a closure has nothing left to wait on
*
@@ -180,7 +185,7 @@ void __closure_sync(struct closure *cl);
*/
static inline void closure_sync(struct closure *cl)
{
- if ((atomic_read(&cl->remaining) & CLOSURE_REMAINING_MASK) != 1)
+ if (closure_nr_remaining(cl) != 1)
__closure_sync(cl);
}