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Diffstat (limited to 'qemu-img.c')
-rw-r--r--qemu-img.c125
1 files changed, 59 insertions, 66 deletions
diff --git a/qemu-img.c b/qemu-img.c
index bdb95a4a3f..5548637444 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -284,20 +284,19 @@ static int print_block_option_help(const char *filename, const char *fmt)
return 0;
}
-static BlockDriverState *bdrv_new_open(const char *id,
- const char *filename,
- const char *fmt,
- int flags,
- bool require_io,
- bool quiet)
+static BlockBackend *img_open(const char *id, const char *filename,
+ const char *fmt, int flags,
+ bool require_io, bool quiet)
{
+ BlockBackend *blk;
BlockDriverState *bs;
BlockDriver *drv;
char password[256];
Error *local_err = NULL;
int ret;
- bs = bdrv_new_root(id, &error_abort);
+ blk = blk_new_with_bs(id, &error_abort);
+ bs = blk_bs(blk);
if (fmt) {
drv = bdrv_find_format(fmt);
@@ -328,9 +327,10 @@ static BlockDriverState *bdrv_new_open(const char *id,
goto fail;
}
}
- return bs;
+ return blk;
fail:
bdrv_unref(bs);
+ blk_unref(blk);
return NULL;
}
@@ -580,7 +580,7 @@ static int img_check(int argc, char **argv)
BlockDriverState *bs;
int fix = 0;
int flags = BDRV_O_FLAGS | BDRV_O_CHECK;
- ImageCheck *check = NULL;
+ ImageCheck *check;
bool quiet = false;
fmt = NULL;
@@ -651,12 +651,11 @@ static int img_check(int argc, char **argv)
return 1;
}
- blk = blk_new("image", &error_abort);
- bs = bdrv_new_open("image", filename, fmt, flags, true, quiet);
- if (!bs) {
- ret = 1;
- goto fail;
+ blk = img_open("image", filename, fmt, flags, true, quiet);
+ if (!blk) {
+ return 1;
}
+ bs = blk_bs(blk);
check = g_new0(ImageCheck, 1);
ret = collect_image_check(bs, check, filename, fmt, fix);
@@ -762,12 +761,12 @@ static int img_commit(int argc, char **argv)
return 1;
}
- blk = blk_new("image", &error_abort);
- bs = bdrv_new_open("image", filename, fmt, flags, true, quiet);
- if (!bs) {
- ret = -1;
- goto out;
+ blk = img_open("image", filename, fmt, flags, true, quiet);
+ if (!blk) {
+ return 1;
}
+ bs = blk_bs(blk);
+
ret = bdrv_commit(bs);
switch(ret) {
case 0:
@@ -787,7 +786,6 @@ static int img_commit(int argc, char **argv)
break;
}
-out:
bdrv_unref(bs);
blk_unref(blk);
if (ret) {
@@ -1022,21 +1020,21 @@ static int img_compare(int argc, char **argv)
goto out3;
}
- blk1 = blk_new("image_1", &error_abort);
- bs1 = bdrv_new_open("image_1", filename1, fmt1, flags, true, quiet);
- if (!bs1) {
+ blk1 = img_open("image_1", filename1, fmt1, flags, true, quiet);
+ if (!blk1) {
error_report("Can't open file %s", filename1);
ret = 2;
- goto out2;
+ goto out3;
}
+ bs1 = blk_bs(blk1);
- blk2 = blk_new("image_2", &error_abort);
- bs2 = bdrv_new_open("image_2", filename2, fmt2, flags, true, quiet);
- if (!bs2) {
+ blk2 = img_open("image_2", filename2, fmt2, flags, true, quiet);
+ if (!blk2) {
error_report("Can't open file %s", filename2);
ret = 2;
- goto out1;
+ goto out2;
}
+ bs2 = blk_bs(blk2);
buf1 = qemu_blockalign(bs1, IO_BUF_SIZE);
buf2 = qemu_blockalign(bs2, IO_BUF_SIZE);
@@ -1198,7 +1196,6 @@ static int img_compare(int argc, char **argv)
out:
qemu_vfree(buf1);
qemu_vfree(buf2);
-out1:
bdrv_unref(bs2);
blk_unref(blk2);
out2:
@@ -1379,15 +1376,15 @@ static int img_convert(int argc, char **argv)
for (bs_i = 0; bs_i < bs_n; bs_i++) {
char *id = bs_n > 1 ? g_strdup_printf("source_%d", bs_i)
: g_strdup("source");
- blk[bs_i] = blk_new(id, &error_abort);
- bs[bs_i] = bdrv_new_open(id, argv[optind + bs_i], fmt, src_flags,
- true, quiet);
+ blk[bs_i] = img_open(id, argv[optind + bs_i], fmt, src_flags,
+ true, quiet);
g_free(id);
- if (!bs[bs_i]) {
+ if (!blk[bs_i]) {
error_report("Could not open '%s'", argv[optind + bs_i]);
ret = -1;
goto out;
}
+ bs[bs_i] = blk_bs(blk[bs_i]);
bs_sectors[bs_i] = bdrv_nb_sectors(bs[bs_i]);
if (bs_sectors[bs_i] < 0) {
error_report("Could not get size of %s: %s",
@@ -1505,12 +1502,12 @@ static int img_convert(int argc, char **argv)
goto out;
}
- out_blk = blk_new("target", &error_abort);
- out_bs = bdrv_new_open("target", out_filename, out_fmt, flags, true, quiet);
- if (!out_bs) {
+ out_blk = img_open("target", out_filename, out_fmt, flags, true, quiet);
+ if (!out_blk) {
ret = -1;
goto out;
}
+ out_bs = blk_bs(out_blk);
bs_i = 0;
bs_offset = 0;
@@ -1895,13 +1892,12 @@ static ImageInfoList *collect_image_info_list(const char *filename,
}
g_hash_table_insert(filenames, (gpointer)filename, NULL);
- blk = blk_new("image", &error_abort);
- bs = bdrv_new_open("image", filename, fmt,
- BDRV_O_FLAGS | BDRV_O_NO_BACKING, false, false);
- if (!bs) {
- blk_unref(blk);
+ blk = img_open("image", filename, fmt,
+ BDRV_O_FLAGS | BDRV_O_NO_BACKING, false, false);
+ if (!blk) {
goto err;
}
+ bs = blk_bs(blk);
bdrv_query_image_info(bs, &info, &err);
if (err) {
@@ -2161,12 +2157,11 @@ static int img_map(int argc, char **argv)
return 1;
}
- blk = blk_new("image", &error_abort);
- bs = bdrv_new_open("image", filename, fmt, BDRV_O_FLAGS, true, false);
- if (!bs) {
- ret = -1;
- goto out;
+ blk = img_open("image", filename, fmt, BDRV_O_FLAGS, true, false);
+ if (!blk) {
+ return 1;
}
+ bs = blk_bs(blk);
if (output_format == OFORMAT_HUMAN) {
printf("%-16s%-16s%-16s%s\n", "Offset", "Length", "Mapped to", "File");
@@ -2285,12 +2280,11 @@ static int img_snapshot(int argc, char **argv)
filename = argv[optind++];
/* Open the image */
- blk = blk_new("image", &error_abort);
- bs = bdrv_new_open("image", filename, NULL, bdrv_oflags, true, quiet);
- if (!bs) {
- ret = -1;
- goto out;
+ blk = img_open("image", filename, NULL, bdrv_oflags, true, quiet);
+ if (!blk) {
+ return 1;
}
+ bs = blk_bs(blk);
/* Perform the requested action */
switch(action) {
@@ -2333,7 +2327,6 @@ static int img_snapshot(int argc, char **argv)
}
/* Cleanup */
-out:
bdrv_unref(bs);
blk_unref(blk);
if (ret) {
@@ -2433,12 +2426,12 @@ static int img_rebase(int argc, char **argv)
* Ignore the old backing file for unsafe rebase in case we want to correct
* the reference to a renamed or moved backing file.
*/
- blk = blk_new("image", &error_abort);
- bs = bdrv_new_open("image", filename, fmt, flags, true, quiet);
- if (!bs) {
+ blk = img_open("image", filename, fmt, flags, true, quiet);
+ if (!blk) {
ret = -1;
goto out;
}
+ bs = blk_bs(blk);
/* Find the right drivers for the backing files */
old_backing_drv = NULL;
@@ -2466,8 +2459,8 @@ static int img_rebase(int argc, char **argv)
if (!unsafe) {
char backing_name[1024];
- blk_old_backing = blk_new("old_backing", &error_abort);
- bs_old_backing = bdrv_new_root("old_backing", &error_abort);
+ blk_old_backing = blk_new_with_bs("old_backing", &error_abort);
+ bs_old_backing = blk_bs(blk_old_backing);
bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name));
ret = bdrv_open(&bs_old_backing, backing_name, NULL, NULL, src_flags,
old_backing_drv, &local_err);
@@ -2478,8 +2471,8 @@ static int img_rebase(int argc, char **argv)
goto out;
}
if (out_baseimg[0]) {
- blk_new_backing = blk_new("new_backing", &error_abort);
- bs_new_backing = bdrv_new_root("new_backing", &error_abort);
+ blk_new_backing = blk_new_with_bs("new_backing", &error_abort);
+ bs_new_backing = blk_bs(blk_new_backing);
ret = bdrv_open(&bs_new_backing, out_baseimg, NULL, NULL, src_flags,
new_backing_drv, &local_err);
if (ret) {
@@ -2755,13 +2748,13 @@ static int img_resize(int argc, char **argv)
n = qemu_opt_get_size(param, BLOCK_OPT_SIZE, 0);
qemu_opts_del(param);
- blk = blk_new("image", &error_abort);
- bs = bdrv_new_open("image", filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR,
- true, quiet);
- if (!bs) {
+ blk = img_open("image", filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR,
+ true, quiet);
+ if (!blk) {
ret = -1;
goto out;
}
+ bs = blk_bs(blk);
if (relative) {
total_size = bdrv_getlength(bs) + n * relative;
@@ -2873,13 +2866,13 @@ static int img_amend(int argc, char **argv)
goto out;
}
- blk = blk_new("image", &error_abort);
- bs = bdrv_new_open("image", filename, fmt, flags, true, quiet);
- if (!bs) {
+ blk = img_open("image", filename, fmt, flags, true, quiet);
+ if (!blk) {
error_report("Could not open image '%s'", filename);
ret = -1;
goto out;
}
+ bs = blk_bs(blk);
fmt = bs->drv->format_name;
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-24 00:29:39 +0000