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| author | Kevin Wolf <kwolf@redhat.com> | 2025-03-07 23:16:31 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2025-03-13 17:57:23 +0100 |
| commit | 2f3b6e61f692bade441230dd25c1c0f101bd2eef (patch) | |
| tree | 63283cfcb67474a2b057f5255aaf2592372362b9 /util/async.c | |
| parent | 984a32f17e8dab0dc3d2328c46cb3e0c0a472a73 (diff) | |
| download | focaccia-qemu-2f3b6e61f692bade441230dd25c1c0f101bd2eef.tar.gz focaccia-qemu-2f3b6e61f692bade441230dd25c1c0f101bd2eef.zip | |
block/io: Ignore FUA with cache.no-flush=on
For block drivers that don't advertise FUA support, we already call bdrv_co_flush(), which considers BDRV_O_NO_FLUSH. However, drivers that do support FUA still see the FUA flag with BDRV_O_NO_FLUSH and get the associated performance penalty that cache.no-flush=on was supposed to avoid. Clear FUA for write requests if BDRV_O_NO_FLUSH is set. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-ID: <20250307221634.71951-3-kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'util/async.c')
0 files changed, 0 insertions, 0 deletions