diff options
Diffstat (limited to 'man/io_uring_setup.2')
| -rw-r--r-- | man/io_uring_setup.2 | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/man/io_uring_setup.2 b/man/io_uring_setup.2 index ebaee2d..9ab0143 100644 --- a/man/io_uring_setup.2 +++ b/man/io_uring_setup.2 @@ -97,7 +97,11 @@ call with the following code sequence: .in +4n .EX -read_barrier(); +/* + * Ensure that the wakeup flag is read after the tail pointer has been + * written. + */ +smp_mb(); if (*sq_ring->flags & IORING_SQ_NEED_WAKEUP) io_uring_enter(fd, 0, 0, IORING_ENTER_SQ_WAKEUP); .EE |