[PULL 10/35] block/qcow2: Use bdrv_pwrite_sync() in qcow2_mark_dirty()

Maintainers: Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, Ari Sundholm <ari@tuxera.com>, Stefan Hajnoczi <stefanha@redhat.com>, John Snow <jsnow@redhat.com>, Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>, Fam Zheng <fam@euphon.net>, "Denis V. Lunev" <den@openvz.org>, Eric Blake <eblake@redhat.com>, Stefan Weil <sw@weilnetz.de>, Jeff Cody <codyprime@gmail.com>, "Daniel P. Berrangé" <berrange@redhat.com>, Niek Linnenbank <nieklinnenbank@gmail.com>, Beniamino Galvani <b.galvani@gmail.com>, Peter Maydell <peter.maydell@linaro.org>, "Cédric Le Goater" <clg@kaod.org>, Andrew Jeffery <andrew@aj.id.au>, Joel Stanley <joel@jms.id.au>, Alistair Francis <alistair@alistair23.me>, "Philippe Mathieu-Daudé" <f4bug@amsat.org>, Laurent Vivier <laurent@vivier.eu>, Bin Meng <bin.meng@windriver.com>, Palmer Dabbelt <palmer@dabbelt.com>, Daniel Henrique Barboza <danielhb413@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Greg Kurz <groug@kaod.org>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Juan Quintela <quintela@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>
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[PULL 10/35] block/qcow2: Use bdrv_pwrite_sync() in qcow2_mark_dirty()
Posted by Hanna Reitz 2 years, 9 months ago
From: Alberto Faria <afaria@redhat.com>

Use bdrv_pwrite_sync() instead of calling bdrv_pwrite() and bdrv_flush()
separately.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220609152744.3891847-11-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
 block/qcow2.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/block/qcow2.c b/block/qcow2.c
index f2fb54c51f..90a2dd406b 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -516,12 +516,9 @@ int qcow2_mark_dirty(BlockDriverState *bs)
     }
 
     val = cpu_to_be64(s->incompatible_features | QCOW2_INCOMPAT_DIRTY);
-    ret = bdrv_pwrite(bs->file, offsetof(QCowHeader, incompatible_features),
-                      sizeof(val), &val, 0);
-    if (ret < 0) {
-        return ret;
-    }
-    ret = bdrv_flush(bs->file->bs);
+    ret = bdrv_pwrite_sync(bs->file,
+                           offsetof(QCowHeader, incompatible_features),
+                           sizeof(val), &val, 0);
     if (ret < 0) {
         return ret;
     }
-- 
2.35.3