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authorPaolo Bonzini <pbonzini@redhat.com>2011-10-21 13:16:28 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2011-12-22 11:53:57 +0100
commit2c7989a9b13a45963548cf4d89535fe90d809cac (patch)
tree141af5d1af68d61d6d7d2c595e832c9a94f5e77a /block
parentadcf6302de40e50a8010e7f2c79b3dac2eea6e0c (diff)
nbd: add support for NBD_CMD_FLAG_FUA
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'block')
-rw-r--r--block/nbd.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/block/nbd.c b/block/nbd.c
index 3f693e3ffa..2f483cddde 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -352,6 +352,10 @@ static int nbd_co_writev_1(BlockDriverState *bs, int64_t sector_num,
struct nbd_reply reply;
request.type = NBD_CMD_WRITE;
+ if (!bdrv_enable_write_cache(bs) && (s->nbdflags & NBD_FLAG_SEND_FUA)) {
+ request.type |= NBD_CMD_FLAG_FUA;
+ }
+
request.from = sector_num * 512;
request.len = nb_sectors * 512;