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[Qemu-devel] [PATCH 03/21] block: Add bdrv_close_all() notifiers
From: |
Max Reitz |
Subject: |
[Qemu-devel] [PATCH 03/21] block: Add bdrv_close_all() notifiers |
Date: |
Mon, 26 Jan 2015 14:27:30 -0500 |
This adds a list of notifiers to be invoked on bdrv_close_all().
Signed-off-by: Max Reitz <address@hidden>
---
block.c | 10 ++++++++++
include/block/block.h | 2 ++
2 files changed, 12 insertions(+)
diff --git a/block.c b/block.c
index b7e631c..3adb724 100644
--- a/block.c
+++ b/block.c
@@ -104,6 +104,9 @@ static void bdrv_reset_dirty(BlockDriverState *bs, int64_t
cur_sector,
/* If non-zero, use only whitelisted block drivers */
static int use_bdrv_whitelist;
+static NotifierList close_all_notifiers =
+ NOTIFIER_LIST_INITIALIZER(close_all_notifiers);
+
#ifdef _WIN32
static int is_windows_drive_prefix(const char *filename)
{
@@ -1913,6 +1916,8 @@ void bdrv_close_all(void)
{
BlockDriverState *bs;
+ notifier_list_notify(&close_all_notifiers, NULL);
+
QTAILQ_FOREACH(bs, &bdrv_states, device_list) {
AioContext *aio_context = bdrv_get_aio_context(bs);
@@ -1922,6 +1927,11 @@ void bdrv_close_all(void)
}
}
+void bdrv_add_close_all_notifier(Notifier *notifier)
+{
+ notifier_list_add(&close_all_notifiers, notifier);
+}
+
/* Check if any requests are in-flight (including throttled requests) */
static bool bdrv_requests_pending(BlockDriverState *bs)
{
diff --git a/include/block/block.h b/include/block/block.h
index fa9dfd5..301baac 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -539,4 +539,6 @@ void bdrv_io_plug(BlockDriverState *bs);
void bdrv_io_unplug(BlockDriverState *bs);
void bdrv_flush_io_queue(BlockDriverState *bs);
+void bdrv_add_close_all_notifier(Notifier *notifier);
+
#endif
--
2.1.0
- [Qemu-devel] [PATCH 00/20] block: Rework bdrv_close_all(), Max Reitz, 2015/01/26
- [Qemu-devel] [PATCH 06/21] block: Use blk_remove_bs() in blk_delete(), Max Reitz, 2015/01/26
- [Qemu-devel] [PATCH 07/21] blockdev: Use blk_remove_bs() in do_drive_del(), Max Reitz, 2015/01/26
- [Qemu-devel] [PATCH 01/21] block: Guard remaining unsafe blk_bs() callers, Max Reitz, 2015/01/26
- [Qemu-devel] [PATCH 08/21] block: Make bdrv_close() static, Max Reitz, 2015/01/26
- [Qemu-devel] [PATCH 03/21] block: Add bdrv_close_all() notifiers,
Max Reitz <=
- [Qemu-devel] [PATCH 09/21] block: Add blk_name_taken(), Max Reitz, 2015/01/26
- [Qemu-devel] [PATCH 04/21] block: Add bdrv_close_all() handlers, Max Reitz, 2015/01/26
- Re: [Qemu-devel] [PATCH 04/21] block: Add bdrv_close_all() handlers, Paolo Bonzini, 2015/01/26
- Re: [Qemu-devel] [PATCH 04/21] block: Add bdrv_close_all() handlers, Max Reitz, 2015/01/26
- Re: [Qemu-devel] [PATCH 04/21] block: Add bdrv_close_all() handlers, Paolo Bonzini, 2015/01/26
- Re: [Qemu-devel] [PATCH 04/21] block: Add bdrv_close_all() handlers, Max Reitz, 2015/01/26
- Re: [Qemu-devel] [PATCH 04/21] block: Add bdrv_close_all() handlers, Paolo Bonzini, 2015/01/26
- Re: [Qemu-devel] [PATCH 04/21] block: Add bdrv_close_all() handlers, Eric Blake, 2015/01/28