diff options
| author | Emanuele Giuseppe Esposito <eesposit@redhat.com> | 2022-05-24 13:30:54 -0400 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2022-06-24 17:07:06 +0200 |
| commit | 7455ff1aa01564cc175db5b2373e610503ad4411 (patch) | |
| tree | 5a10d1498410ecbd582c7423d305188967600fc2 /block | |
| parent | 9b38fc56c054c7de65fa3bf7cdd82b32654f6b7d (diff) | |
aio_wait_kick: add missing memory barrier
It seems that aio_wait_kick always required a memory barrier
or atomic operation in the caller, but nobody actually
took care of doing it.
Let's put the barrier in the function instead, and pair it
with another one in AIO_WAIT_WHILE. Read aio_wait_kick()
comment for further explanation.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220524173054.12651-1-eesposit@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions