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parallels: Use BB functions in .bdrv_create()

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All users of the block layers are supposed to go through a BlockBackend.
The .bdrv_create() implementation is one such user, so this patch
converts it.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2016-03-08 15:57:05 +01:00
parent c10c9d9615
commit 8942764f54
1 changed files with 14 additions and 11 deletions
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21
block/parallels.c
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@ -30,6 +30,7 @@
#include "qemu/osdep.h" #include "qemu/osdep.h"
#include "qemu-common.h" #include "qemu-common.h"
#include "block/block_int.h" #include "block/block_int.h"
#include "sysemu/block-backend.h"
#include "qemu/module.h" #include "qemu/module.h"
#include "qemu/bitmap.h" #include "qemu/bitmap.h"
#include "qapi/util.h" #include "qapi/util.h"
@ -461,7 +462,7 @@ static int parallels_create(const char *filename, QemuOpts *opts, Error **errp)
int64_t total_size, cl_size; int64_t total_size, cl_size;
uint8_t tmp[BDRV_SECTOR_SIZE]; uint8_t tmp[BDRV_SECTOR_SIZE];
Error *local_err = NULL; Error *local_err = NULL;
BlockDriverState *file; BlockBackend *file;
uint32_t bat_entries, bat_sectors; uint32_t bat_entries, bat_sectors;
ParallelsHeader header; ParallelsHeader header;
int ret; int ret;
@ -477,15 +478,17 @@ static int parallels_create(const char *filename, QemuOpts *opts, Error **errp)
return ret; return ret;
} }
file = NULL; file = blk_new_open("image", filename, NULL, NULL,
ret = bdrv_open(&file, filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL, BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err); &local_err);
if (ret < 0) { if (file == NULL) {
error_propagate(errp, local_err); error_propagate(errp, local_err);
return ret; return -EIO;
} }
ret = bdrv_truncate(file, 0);
blk_set_allow_write_beyond_eof(file, true);
ret = blk_truncate(file, 0);
if (ret < 0) { if (ret < 0) {
goto exit; goto exit;
} }
@ -509,18 +512,18 @@ static int parallels_create(const char *filename, QemuOpts *opts, Error **errp)
memset(tmp, 0, sizeof(tmp)); memset(tmp, 0, sizeof(tmp));
memcpy(tmp, &header, sizeof(header)); memcpy(tmp, &header, sizeof(header));
ret = bdrv_pwrite(file, 0, tmp, BDRV_SECTOR_SIZE); ret = blk_pwrite(file, 0, tmp, BDRV_SECTOR_SIZE);
if (ret < 0) { if (ret < 0) {
goto exit; goto exit;
} }
ret = bdrv_write_zeroes(file, 1, bat_sectors - 1, 0); ret = blk_write_zeroes(file, 1, bat_sectors - 1, 0);
if (ret < 0) { if (ret < 0) {
goto exit; goto exit;
} }
ret = 0; ret = 0;
done: done:
bdrv_unref(file); blk_unref(file);
return ret; return ret;
exit: exit: