From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37274) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1agGbJ-0001E8-G2 for qemu-devel@nongnu.org; Wed, 16 Mar 2016 14:55:25 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1agGbG-0005co-9A for qemu-devel@nongnu.org; Wed, 16 Mar 2016 14:55:21 -0400 From: Max Reitz Date: Wed, 16 Mar 2016 19:54:39 +0100 Message-Id: <1458154485-32536-12-git-send-email-mreitz@redhat.com> In-Reply-To: <1458154485-32536-1-git-send-email-mreitz@redhat.com> References: <1458154485-32536-1-git-send-email-mreitz@redhat.com> Subject: [Qemu-devel] [PATCH v4 11/17] blockdev: Remove blk_hide_on_behalf_of_hmp_drive_del() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org Cc: Kevin Wolf , Markus Armbruster , qemu-devel@nongnu.org, Stefan Hajnoczi , Max Reitz 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 --- block/block-backend.c | 17 ----------------- blockdev.c | 11 ++++++----- include/sysemu/block-backend.h | 2 -- 3 files changed, 6 insertions(+), 24 deletions(-) diff --git a/block/block-backend.c b/block/block-backend.c index 9ed3912..68f3662 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -386,23 +386,6 @@ BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo) } /* - * 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. */ void blk_remove_bs(BlockBackend *blk) diff --git a/blockdev.c b/blockdev.c index d0e3d9c..b6d2444 100644 --- a/blockdev.c +++ b/blockdev.c @@ -2865,15 +2865,16 @@ void hmp_drive_del(Monitor *mon, const QDict *qdict) blk_remove_bs(blk); } + /* Make the BlockBackend and the attached BlockDriverState anonymous */ monitor_remove_blk(blk); + if (blk_bs(blk)) { + bdrv_make_anon(blk_bs(blk)); + } - /* if we have a device attached to this BlockDriverState - * then we need to make the drive anonymous until the device - * 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 this BlockBackend has a device attached to it, its refcount will be + * decremented when the device is removed; otherwise we have to do so here. */ if (blk_get_attached_dev(blk)) { - blk_hide_on_behalf_of_hmp_drive_del(blk); /* Further I/O must not pause the guest */ blk_set_on_error(blk, BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT); diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index 5edc427..60c4b07 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -77,8 +77,6 @@ BlockDriverState *blk_bs(BlockBackend *blk); void blk_remove_bs(BlockBackend *blk); 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_iostatus_enable(BlockBackend *blk); bool blk_iostatus_is_enabled(const BlockBackend *blk); -- 2.7.3