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block: make bdrv_delete() static

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Manage BlockDriverState lifecycle with refcnt, so bdrv_delete() is no
longer public and should be called by bdrv_unref() if refcnt is
decreased to 0.

This is an identical change because effectively, there's no multiple
reference of BDS now: no caller of bdrv_ref() yet, only bdrv_new() sets
bs->refcnt to 1, so all bdrv_unref() now actually delete the BDS.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Fam Zheng 2013-08-23 09:14:47 +08:00 • committed by Stefan Hajnoczi
parent 9fcb025146
commit 4f6fd3491c
19 changed files with 58 additions and 58 deletions
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26
qemu-img.c
View file

@ -300,7 +300,7 @@ static BlockDriverState *bdrv_new_open(const char *filename,
return bs;
fail:
if (bs) {
bdrv_delete(bs);
bdrv_unref(bs);
}
return NULL;
}
@ -654,7 +654,7 @@ static int img_check(int argc, char **argv)
fail:
qapi_free_ImageCheck(check);
bdrv_delete(bs);
bdrv_unref(bs);
return ret;
}
@ -724,7 +724,7 @@ static int img_commit(int argc, char **argv)
break;
}
bdrv_delete(bs);
bdrv_unref(bs);
if (ret) {
return 1;
}
@ -1106,11 +1106,11 @@ static int img_compare(int argc, char **argv)
ret = 0;
out:
bdrv_delete(bs2);
bdrv_unref(bs2);
qemu_vfree(buf1);
qemu_vfree(buf2);
out2:
bdrv_delete(bs1);
bdrv_unref(bs1);
out3:
qemu_progress_end();
return ret;
@ -1561,12 +1561,12 @@ out:
free_option_parameters(param);
qemu_vfree(buf);
if (out_bs) {
bdrv_delete(out_bs);
bdrv_unref(out_bs);
}
if (bs) {
for (bs_i = 0; bs_i < bs_n; bs_i++) {
if (bs[bs_i]) {
bdrv_delete(bs[bs_i]);
bdrv_unref(bs[bs_i]);
}
}
g_free(bs);
@ -1704,7 +1704,7 @@ static ImageInfoList *collect_image_info_list(const char *filename,
*last = elem;
last = &elem->next;
bdrv_delete(bs);
bdrv_unref(bs);
filename = fmt = NULL;
if (chain) {
@ -1918,7 +1918,7 @@ static int img_snapshot(int argc, char **argv)
}
/* Cleanup */
bdrv_delete(bs);
bdrv_unref(bs);
if (ret) {
return 1;
}
@ -2193,14 +2193,14 @@ out:
/* Cleanup */
if (!unsafe) {
if (bs_old_backing != NULL) {
bdrv_delete(bs_old_backing);
bdrv_unref(bs_old_backing);
}
if (bs_new_backing != NULL) {
bdrv_delete(bs_new_backing);
bdrv_unref(bs_new_backing);
}
}
bdrv_delete(bs);
bdrv_unref(bs);
if (ret) {
return 1;
}
@ -2323,7 +2323,7 @@ static int img_resize(int argc, char **argv)
}
out:
if (bs) {
bdrv_delete(bs);
bdrv_unref(bs);
}
if (ret) {
return 1;