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blockdev: Remove blk_hide_on_behalf_of_hmp_drive_del() 

We can basically inline it in hmp_drive_del(); monitor_remove_blk() is
called already, so we just need to call bdrv_make_anon(), too.

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 19:54:39 +01:00 committed by Kevin Wolf
parent efaa7c4eeb
commit 7c735873d9
3 changed files with 6 additions and 24 deletions
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17
block/block-backend.c
View File

@ -385,23 +385,6 @@ BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo)
abort(); abort();
} }
/*
* Hide @blk.
* @blk must not have been hidden already.
* Make attached BlockDriverState, if any, anonymous.
* Once hidden, @blk is invisible to all functions that don't receive
* it as argument. For example, blk_by_name() won't return it.
* Strictly for use by do_drive_del().
* TODO get rid of it!
*/
void blk_hide_on_behalf_of_hmp_drive_del(BlockBackend *blk)
{
monitor_remove_blk(blk);
if (blk->bs) {
bdrv_make_anon(blk->bs);
}
}
/* /*
* Disassociates the currently associated BlockDriverState from @blk. * Disassociates the currently associated BlockDriverState from @blk.
*/ */

11
blockdev.c
View File

@ -2865,15 +2865,16 @@ void hmp_drive_del(Monitor *mon, const QDict *qdict)
blk_remove_bs(blk); blk_remove_bs(blk);
} }
/* Make the BlockBackend and the attached BlockDriverState anonymous */
monitor_remove_blk(blk); monitor_remove_blk(blk);
if (blk_bs(blk)) {
bdrv_make_anon(blk_bs(blk));
}
/* if we have a device attached to this BlockDriverState /* If this BlockBackend has a device attached to it, its refcount will be
* then we need to make the drive anonymous until the device * decremented when the device is removed; otherwise we have to do so here.
* can be removed. If this is a drive with no device backing
* then we can just get rid of the block driver state right here.
*/ */
if (blk_get_attached_dev(blk)) { if (blk_get_attached_dev(blk)) {
blk_hide_on_behalf_of_hmp_drive_del(blk);
/* Further I/O must not pause the guest */ /* Further I/O must not pause the guest */
blk_set_on_error(blk, BLOCKDEV_ON_ERROR_REPORT, blk_set_on_error(blk, BLOCKDEV_ON_ERROR_REPORT,
BLOCKDEV_ON_ERROR_REPORT); BLOCKDEV_ON_ERROR_REPORT);

2
include/sysemu/block-backend.h
View File

@ -77,8 +77,6 @@ BlockDriverState *blk_bs(BlockBackend *blk);
void blk_remove_bs(BlockBackend *blk); void blk_remove_bs(BlockBackend *blk);
void blk_insert_bs(BlockBackend *blk, BlockDriverState *bs); void blk_insert_bs(BlockBackend *blk, BlockDriverState *bs);
void blk_hide_on_behalf_of_hmp_drive_del(BlockBackend *blk);
void blk_set_allow_write_beyond_eof(BlockBackend *blk, bool allow); void blk_set_allow_write_beyond_eof(BlockBackend *blk, bool allow);
void blk_iostatus_enable(BlockBackend *blk); void blk_iostatus_enable(BlockBackend *blk);
bool blk_iostatus_is_enabled(const BlockBackend *blk); bool blk_iostatus_is_enabled(const BlockBackend *blk);