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authorKevin Wolf <kwolf@redhat.com>2020-09-24 17:26:55 +0200
committerKevin Wolf <kwolf@redhat.com>2020-10-02 15:46:40 +0200
commitfefee85da055e100ea86d15274106f78502c2819 (patch)
tree20dba3571907c5afbdcaca686646b7bad6dca476 /blockdev-nbd.c
parent1c8222b014484145d66740d0597ae86b4a989b73 (diff)
nbd: Add writethrough to block-export-add
qemu-nbd allows use of writethrough cache modes, which mean that write requests made through NBD will cause a flush before they complete. Expose the same functionality in block-export-add. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200924152717.287415-10-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'blockdev-nbd.c')
-rw-r--r--blockdev-nbd.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/blockdev-nbd.c b/blockdev-nbd.c
index 41d5542987..09247a8ded 100644
--- a/blockdev-nbd.c
+++ b/blockdev-nbd.c
@@ -216,9 +216,13 @@ BlockExport *nbd_export_create(BlockExportOptions *exp_args, Error **errp)
goto out;
}
+ if (!exp_args->has_writethrough) {
+ exp_args->writethrough = false;
+ }
+
exp = nbd_export_new(bs, arg->name, arg->description, arg->bitmap,
!arg->writable, !arg->writable,
- NULL, false, errp);
+ NULL, exp_args->writethrough, errp);
if (!exp) {
goto out;
}