ShuriZma
/
xemu
mirror of https://github.com/xemu-project/xemu.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

block: Add blk_add_close_notifier() for BB 

Adding something like a "delete notifier" to a BlockBackend would not
make much sense, because whoever is interested in registering there will
probably hold a reference to that BlockBackend; therefore, the notifier
will never be called (or only when the notifiee already relinquished its
reference and thus most probably is no longer interested in that
notification).

Therefore, this patch just passes through the close notifier interface
of the root BDS. This will be called when the device is ejected, for
instance, and therefore does make sense.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1416309679-333-4-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2014-11-18 12:21:16 +01:00 committed by Kevin Wolf
parent 2019ba0a01
commit 2c28b21f7c
2 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
block/block-backend.c
View File

@ -642,6 +642,11 @@ void blk_remove_aio_context_notifier(BlockBackend *blk,
detach_aio_context, opaque);
}
void blk_add_close_notifier(BlockBackend *blk, Notifier *notify)
{
bdrv_add_close_notifier(blk->bs, notify);
}
void blk_io_plug(BlockBackend *blk)
{
bdrv_io_plug(blk->bs);

1
include/sysemu/block-backend.h
View File

@ -143,6 +143,7 @@ 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);