From: Stefano Garzarella <[email protected]>
libblkio supports BLKIO_REQ_FUA with write zeros requests only since
version 1.4.0, so let's inform the block layer that the blkio driver
supports it only in this case. Otherwise we can have runtime errors
as reported in https://issues.redhat.com/browse/RHEL-32878
Fixes: fd66dbd424 ("blkio: add libblkio block driver")
Cc: [email protected]
Buglink: https://issues.redhat.com/browse/RHEL-32878
Signed-off-by: Stefano Garzarella <[email protected]>
Reviewed-by: Eric Blake <[email protected]>
Reviewed-by: Philippe Mathieu-Daudé <[email protected]>
Message-id: [email protected]
Signed-off-by: Stefan Hajnoczi <[email protected]>
(cherry picked from commit 547c4e50929ec6c091d9c16a7b280e829b12b463)
Signed-off-by: Michael Tokarev <[email protected]>
(Mjt: meson.build fixup for the lack of
v8.0.0-1489-g98b126f5e3 "qapi: add '@fdset' feature for
BlockdevOptionsVirtioBlkVhostVdpa")
diff --git a/block/blkio.c b/block/blkio.c
index cb66160268..1fd47c434c 100644
--- a/block/blkio.c
+++ b/block/blkio.c
@@ -808,8 +808,10 @@ static int blkio_file_open(BlockDriverState *bs, QDict
*options, int flags,
}
bs->supported_write_flags = BDRV_REQ_FUA | BDRV_REQ_REGISTERED_BUF;
- bs->supported_zero_flags = BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP |
- BDRV_REQ_NO_FALLBACK;
+ bs->supported_zero_flags = BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK;
+#ifdef CONFIG_BLKIO_WRITE_ZEROS_FUA
+ bs->supported_zero_flags |= BDRV_REQ_FUA;
+#endif
qemu_mutex_init(&s->blkio_lock);
qemu_co_mutex_init(&s->bounce_lock);
diff --git a/meson.build b/meson.build
index 787f91855e..16dc9627e0 100644
--- a/meson.build
+++ b/meson.build
@@ -1831,6 +1831,10 @@ config_host_data.set('CONFIG_LZO', lzo.found())
config_host_data.set('CONFIG_MPATH', mpathpersist.found())
config_host_data.set('CONFIG_MPATH_NEW_API', mpathpersist_new_api)
config_host_data.set('CONFIG_BLKIO', blkio.found())
+if blkio.found()
+ config_host_data.set('CONFIG_BLKIO_WRITE_ZEROS_FUA',
+ blkio.version().version_compare('>=1.4.0'))
+endif
config_host_data.set('CONFIG_CURL', curl.found())
config_host_data.set('CONFIG_CURSES', curses.found())
config_host_data.set('CONFIG_GBM', gbm.found())
--
2.39.2
