diff options
| -rw-r--r-- | include/linux/fence.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/include/linux/fence.h b/include/linux/fence.h index 0d763053f97a..fcb69f99d717 100644 --- a/include/linux/fence.h +++ b/include/linux/fence.h @@ -281,6 +281,19 @@ fence_is_signaled(struct fence *fence) } /** + * __fence_is_later - return if f1 is chronologically later than f2 + * @f1: [in] the first fence's seqno + * @f2: [in] the second fence's seqno from the same context + * + * Returns true if f1 is chronologically later than f2. Both fences must be + * from the same context, since a seqno is not common across contexts. + */ +static inline bool __fence_is_later(u32 f1, u32 f2) +{ + return (int)(f1 - f2) > 0; +} + +/** * fence_is_later - return if f1 is chronologically later than f2 * @f1: [in] the first fence from the same context * @f2: [in] the second fence from the same context @@ -293,7 +306,7 @@ static inline bool fence_is_later(struct fence *f1, struct fence *f2) if (WARN_ON(f1->context != f2->context)) return false; - return (int)(f1->seqno - f2->seqno) > 0; + return __fence_is_later(f1->seqno, f2->seqno); } /** |