zig

commit 3d2de6cfbacb139ee101202e786b9355be92f960 (tree)
parent 69a55fc560dab477222f2ad104050b443647faa5
Author: Joran Dirk Greef <joran@ronomon.com>
Date:   Sun,  4 Oct 2020 13:14:57 +0200

Use load relaxed semantics when reading the SQPOLL wakeup flag

Diffstat:
M
lib/std/os/linux/io_uring.zig
 | 
2
+-

1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/std/os/linux/io_uring.zig b/lib/std/os/linux/io_uring.zig
@@ -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;
         }