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Use load relaxed semantics when reading the SQPOLL wakeup flag

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Joran Dirk Greef
2020-10-04 13:14:57 +02:00
parent 69a55fc560
commit 3d2de6cfba
1 changed files with 1 additions and 1 deletions
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2
lib/std/os/linux/io_uring.zig
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@@ -241,7 +241,7 @@ pub const IO_Uring = struct {
pub fn sq_ring_needs_enter(self: *IO_Uring, submitted: u32, flags: *u32) bool {
assert(flags.* == 0);
if ((self.flags & linux.IORING_SETUP_SQPOLL) == 0 and submitted > 0) return true;
if ((@atomicLoad(u32, self.sq.flags, .Acquire) & linux.IORING_SQ_NEED_WAKEUP) != 0) {
if ((@atomicLoad(u32, self.sq.flags, .Unordered) & linux.IORING_SQ_NEED_WAKEUP) != 0) {
flags.* |= linux.IORING_ENTER_SQ_WAKEUP;
return true;
}