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block: Use writeback in .bdrv_create() implementations 

There's no reason to use a writethrough cache mode while creating an
image.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2016-03-04 14:53:50 +01:00
parent 2073d410ce
commit 6340472c54
8 changed files with 22 additions and 11 deletions
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3
block/parallels.c
View File

@ -479,7 +479,8 @@ static int parallels_create(const char *filename, QemuOpts *opts, Error **errp)
file = NULL;
ret = bdrv_open(&file, filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_PROTOCOL, &local_err);
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (ret < 0) {
error_propagate(errp, local_err);
return ret;

3
block/qcow.c
View File

@ -798,7 +798,8 @@ static int qcow_create(const char *filename, QemuOpts *opts, Error **errp)
qcow_bs = NULL;
ret = bdrv_open(&qcow_bs, filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_PROTOCOL, &local_err);
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (ret < 0) {
error_propagate(errp, local_err);
goto cleanup;

3
block/qcow2.c
View File

@ -2173,7 +2173,8 @@ static int qcow2_create2(const char *filename, int64_t total_size,
}
bs = NULL;
ret = bdrv_open(&bs, filename, NULL, NULL, BDRV_O_RDWR | BDRV_O_PROTOCOL,
ret = bdrv_open(&bs, filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (ret < 0) {
error_propagate(errp, local_err);

6
block/sheepdog.c
View File

@ -1645,7 +1645,8 @@ static int sd_prealloc(const char *filename, Error **errp)
void *buf = NULL;
int ret;
ret = bdrv_open(&bs, filename, NULL, NULL, BDRV_O_RDWR | BDRV_O_PROTOCOL,
ret = bdrv_open(&bs, filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
errp);
if (ret < 0) {
goto out_with_err_set;
@ -1838,7 +1839,8 @@ static int sd_create(const char *filename, QemuOpts *opts,
}
bs = NULL;
ret = bdrv_open(&bs, backing_file, NULL, NULL, BDRV_O_PROTOCOL, errp);
ret = bdrv_open(&bs, backing_file, NULL, NULL,
BDRV_O_PROTOCOL | BDRV_O_CACHE_WB, errp);
if (ret < 0) {
goto out;
}

3
block/vdi.c
View File

@ -766,7 +766,8 @@ static int vdi_create(const char *filename, QemuOpts *opts, Error **errp)
error_propagate(errp, local_err);
goto exit;
}
ret = bdrv_open(&bs, filename, NULL, NULL, BDRV_O_RDWR | BDRV_O_PROTOCOL,
ret = bdrv_open(&bs, filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (ret < 0) {
error_propagate(errp, local_err);

3
block/vhdx.c
View File

@ -1838,7 +1838,8 @@ static int vhdx_create(const char *filename, QemuOpts *opts, Error **errp)
}
bs = NULL;
ret = bdrv_open(&bs, filename, NULL, NULL, BDRV_O_RDWR | BDRV_O_PROTOCOL,
ret = bdrv_open(&bs, filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (ret < 0) {
error_propagate(errp, local_err);

9
block/vmdk.c
View File

@ -1664,7 +1664,8 @@ static int vmdk_create_extent(const char *filename, int64_t filesize,
}
assert(bs == NULL);
ret = bdrv_open(&bs, filename, NULL, NULL, BDRV_O_RDWR | BDRV_O_PROTOCOL,
ret = bdrv_open(&bs, filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (ret < 0) {
error_propagate(errp, local_err);
@ -1944,7 +1945,8 @@ static int vmdk_create(const char *filename, QemuOpts *opts, Error **errp)
ret = -ENOENT;
goto exit;
}
ret = bdrv_open(&bs, full_backing, NULL, NULL, BDRV_O_NO_BACKING, errp);
ret = bdrv_open(&bs, full_backing, NULL, NULL,
BDRV_O_NO_BACKING | BDRV_O_CACHE_WB, errp);
g_free(full_backing);
if (ret != 0) {
goto exit;
@ -2015,7 +2017,8 @@ static int vmdk_create(const char *filename, QemuOpts *opts, Error **errp)
}
assert(new_bs == NULL);
ret = bdrv_open(&new_bs, filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_PROTOCOL, &local_err);
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (ret < 0) {
error_propagate(errp, local_err);
goto exit;

3
block/vpc.c
View File

@ -886,7 +886,8 @@ static int vpc_create(const char *filename, QemuOpts *opts, Error **errp)
error_propagate(errp, local_err);
goto out;
}
ret = bdrv_open(&bs, filename, NULL, NULL, BDRV_O_RDWR | BDRV_O_PROTOCOL,
ret = bdrv_open(&bs, filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (ret < 0) {
error_propagate(errp, local_err);