[Qemu-devel] [PATCH 05/21] block: Remove per-BDS close notifiers

[Max Reitz <mreitz@redhat.com>]

They are unused, and bdrv_close_all() is a perfectly valid replacement.

Signed-off-by: Max Reitz <mreitz@redhat.com>
---
 block.c                        | 7 -------
 block/block-backend.c          | 7 -------
 include/block/block.h          | 1 -
 include/block/block_int.h      | 2 --
 include/sysemu/block-backend.h | 1 -
 5 files changed, 18 deletions(-)

diff --git a/block.c b/block.c
index 3adb724..0c6ab96 100644
--- a/block.c
+++ b/block.c
@@ -374,7 +374,6 @@ BlockDriverState *bdrv_new(void)
     for (i = 0; i < BLOCK_OP_TYPE_MAX; i++) {
         QLIST_INIT(&bs->op_blockers[i]);
     }
-    notifier_list_init(&bs->close_notifiers);
     notifier_with_return_list_init(&bs->before_write_notifiers);
     qemu_co_queue_init(&bs->throttled_reqs[0]);
     qemu_co_queue_init(&bs->throttled_reqs[1]);
@@ -384,11 +383,6 @@ BlockDriverState *bdrv_new(void)
     return bs;
 }
 
-void bdrv_add_close_notifier(BlockDriverState *bs, Notifier *notify)
-{
-    notifier_list_add(&bs->close_notifiers, notify);
-}
-
 BlockDriver *bdrv_find_format(const char *format_name)
 {
     BlockDriver *drv1;
@@ -1866,7 +1860,6 @@ void bdrv_close(BlockDriverState *bs)
     bdrv_drain_all(); /* complete I/O */
     bdrv_flush(bs);
     bdrv_drain_all(); /* in case flush left pending I/O */
-    notifier_list_notify(&bs->close_notifiers, bs);
 
     if (bs->drv) {
         if (bs->backing_hd) {
diff --git a/block/block-backend.c b/block/block-backend.c
index 9f14f9b..b825d8e 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1098,13 +1098,6 @@ void blk_remove_aio_context_notifier(BlockBackend *blk,
     }
 }
 
-void blk_add_close_notifier(BlockBackend *blk, Notifier *notify)
-{
-    if (blk->bs) {
-        bdrv_add_close_notifier(blk->bs, notify);
-    }
-}
-
 void blk_io_plug(BlockBackend *blk)
 {
     if (blk->bs) {
diff --git a/include/block/block.h b/include/block/block.h
index 301baac..2b7b3d6 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -192,7 +192,6 @@ int bdrv_reopen_prepare(BDRVReopenState *reopen_state,
 void bdrv_reopen_commit(BDRVReopenState *reopen_state);
 void bdrv_reopen_abort(BDRVReopenState *reopen_state);
 void bdrv_close(BlockDriverState *bs);
-void bdrv_add_close_notifier(BlockDriverState *bs, Notifier *notify);
 int bdrv_read(BlockDriverState *bs, int64_t sector_num,
               uint8_t *buf, int nb_sectors);
 int bdrv_read_unthrottled(BlockDriverState *bs, int64_t sector_num,
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 91d21c5..9842655 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -350,8 +350,6 @@ struct BlockDriverState {
     BlockDriverState *backing_hd;
     BlockDriverState *file;
 
-    NotifierList close_notifiers;
-
     /* Callback before write request is processed */
     NotifierWithReturnList before_write_notifiers;
 
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index 12a05df..f1da495 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -159,7 +159,6 @@ void blk_remove_aio_context_notifier(BlockBackend *blk,
                                                                   void *),
                                      void (*detach_aio_context)(void *),
                                      void *opaque);
-void blk_add_close_notifier(BlockBackend *blk, Notifier *notify);
 void blk_io_plug(BlockBackend *blk);
 void blk_io_unplug(BlockBackend *blk);
 BlockAcctStats *blk_get_stats(BlockBackend *blk);
-- 
2.1.0