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block: Use blk_next() in block-backend.c

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Instead of iterating directly through blk_backends, we can use
blk_next() instead. This gives us some abstraction from the list itself
which we can use to rename it, for example.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2016-03-16 19:54:30 +01:00 committed by Kevin Wolf
parent da27a00e27
commit 74d1b8fc27
1 changed files with 6 additions and 6 deletions
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12
block/block-backend.c
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@ -227,9 +227,9 @@ void blk_unref(BlockBackend *blk)
void blk_remove_all_bs(void)
{
BlockBackend *blk;
BlockBackend *blk = NULL;
QTAILQ_FOREACH(blk, &blk_backends, link) {
while ((blk = blk_next(blk)) != NULL) {
AioContext *ctx = blk_get_aio_context(blk);
aio_context_acquire(ctx);
@ -271,10 +271,10 @@ const char *blk_name(BlockBackend *blk)
*/
BlockBackend *blk_by_name(const char *name)
{
BlockBackend *blk;
BlockBackend *blk = NULL;
assert(name);
QTAILQ_FOREACH(blk, &blk_backends, link) {
while ((blk = blk_next(blk)) != NULL) {
if (!strcmp(name, blk->name)) {
return blk;
}
@ -332,9 +332,9 @@ DriveInfo *blk_set_legacy_dinfo(BlockBackend *blk, DriveInfo *dinfo)
*/
BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo)
{
BlockBackend *blk;
BlockBackend *blk = NULL;
QTAILQ_FOREACH(blk, &blk_backends, link) {
while ((blk = blk_next(blk)) != NULL) {
if (blk->legacy_dinfo == dinfo) {
return blk;
}