diff mbox

[v4,02/17] block: Use blk_next() in block-backend.c

Message ID 1458154485-32536-3-git-send-email-mreitz@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Max Reitz March 16, 2016, 6:54 p.m. UTC 
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>
---
 block/block-backend.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
diff mbox

Patch

diff --git a/block/block-backend.c b/block/block-backend.c
index 03e71b4..7a04e10 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -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;
         }