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Mon, 27 Jan 2020 10:37:02 +0000 (UTC) From: Maxim Levitsky To: qemu-devel@nongnu.org Subject: [PATCH v3 04/13] monitor/hmp: move hmp_drive_del and hmp_commit to block-hmp-cmds.c Date: Mon, 27 Jan 2020 12:36:38 +0200 Message-Id: <20200127103647.17761-5-mlevitsk@redhat.com> In-Reply-To: <20200127103647.17761-1-mlevitsk@redhat.com> References: <20200127103647.17761-1-mlevitsk@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-MC-Unique: A1kRoboMOU6J1SjHfU4WIA-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 207.211.31.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , qemu-block@nongnu.org, Markus Armbruster , "Dr. David Alan Gilbert" , Max Reitz , Gerd Hoffmann , Maxim Levitsky Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Maxim Levitsky --- block/monitor/block-hmp-cmds.c | 97 +++++++++++++++++++++++++++++- blockdev.c | 95 ----------------------------- include/block/block-hmp-commands.h | 3 + include/sysemu/blockdev.h | 4 -- 4 files changed, 99 insertions(+), 100 deletions(-) diff --git a/block/monitor/block-hmp-cmds.c b/block/monitor/block-hmp-cmds.= c index c65aaa86ea..9614c67e77 100644 --- a/block/monitor/block-hmp-cmds.c +++ b/block/monitor/block-hmp-cmds.c @@ -12,6 +12,7 @@ #include "hw/boards.h" #include "sysemu/block-backend.h" #include "sysemu/blockdev.h" +#include "qapi/qapi-commands-block.h" #include "qapi/qmp/qdict.h" #include "qapi/error.h" #include "qemu/config-file.h" @@ -21,7 +22,6 @@ #include "block/block_int.h" #include "block/block-hmp-commands.h" =20 - void hmp_drive_add(Monitor *mon, const QDict *qdict) { Error *err =3D NULL; @@ -69,3 +69,98 @@ err: blk_unref(blk); } } + +void hmp_drive_del(Monitor *mon, const QDict *qdict) +{ + const char *id =3D qdict_get_str(qdict, "id"); + BlockBackend *blk; + BlockDriverState *bs; + AioContext *aio_context; + Error *local_err =3D NULL; + + bs =3D bdrv_find_node(id); + if (bs) { + qmp_blockdev_del(id, &local_err); + if (local_err) { + error_report_err(local_err); + } + return; + } + + blk =3D blk_by_name(id); + if (!blk) { + error_report("Device '%s' not found", id); + return; + } + + if (!blk_legacy_dinfo(blk)) { + error_report("Deleting device added with blockdev-add" + " is not supported"); + return; + } + + aio_context =3D blk_get_aio_context(blk); + aio_context_acquire(aio_context); + + bs =3D blk_bs(blk); + if (bs) { + if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_DRIVE_DEL, &local_err)) { + error_report_err(local_err); + aio_context_release(aio_context); + return; + } + + blk_remove_bs(blk); + } + + /* Make the BlockBackend and the attached BlockDriverState anonymous *= / + monitor_remove_blk(blk); + + /* 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)) { + /* Further I/O must not pause the guest */ + blk_set_on_error(blk, BLOCKDEV_ON_ERROR_REPORT, + BLOCKDEV_ON_ERROR_REPORT); + } else { + blk_unref(blk); + } + + aio_context_release(aio_context); +} + +void hmp_commit(Monitor *mon, const QDict *qdict) +{ + const char *device =3D qdict_get_str(qdict, "device"); + BlockBackend *blk; + int ret; + + if (!strcmp(device, "all")) { + ret =3D blk_commit_all(); + } else { + BlockDriverState *bs; + AioContext *aio_context; + + blk =3D blk_by_name(device); + if (!blk) { + error_report("Device '%s' not found", device); + return; + } + if (!blk_is_available(blk)) { + error_report("Device '%s' has no medium", device); + return; + } + + bs =3D blk_bs(blk); + aio_context =3D bdrv_get_aio_context(bs); + aio_context_acquire(aio_context); + + ret =3D bdrv_commit(bs); + + aio_context_release(aio_context); + } + if (ret < 0) { + error_report("'commit' error for '%s': %s", device, strerror(-ret)= ); + } +} diff --git a/blockdev.c b/blockdev.c index 8e029e9c01..df43e0aaef 100644 --- a/blockdev.c +++ b/blockdev.c @@ -1074,41 +1074,6 @@ static BlockBackend *qmp_get_blk(const char *blk_nam= e, const char *qdev_id, return blk; } =20 -void hmp_commit(Monitor *mon, const QDict *qdict) -{ - const char *device =3D qdict_get_str(qdict, "device"); - BlockBackend *blk; - int ret; - - if (!strcmp(device, "all")) { - ret =3D blk_commit_all(); - } else { - BlockDriverState *bs; - AioContext *aio_context; - - blk =3D blk_by_name(device); - if (!blk) { - error_report("Device '%s' not found", device); - return; - } - if (!blk_is_available(blk)) { - error_report("Device '%s' has no medium", device); - return; - } - - bs =3D blk_bs(blk); - aio_context =3D bdrv_get_aio_context(bs); - aio_context_acquire(aio_context); - - ret =3D bdrv_commit(bs); - - aio_context_release(aio_context); - } - if (ret < 0) { - error_report("'commit' error for '%s': %s", device, strerror(-ret)= ); - } -} - static void blockdev_do_action(TransactionAction *action, Error **errp) { TransactionActionList list; @@ -3101,66 +3066,6 @@ BlockDirtyBitmapSha256 *qmp_x_debug_block_dirty_bitm= ap_sha256(const char *node, return ret; } =20 -void hmp_drive_del(Monitor *mon, const QDict *qdict) -{ - const char *id =3D qdict_get_str(qdict, "id"); - BlockBackend *blk; - BlockDriverState *bs; - AioContext *aio_context; - Error *local_err =3D NULL; - - bs =3D bdrv_find_node(id); - if (bs) { - qmp_blockdev_del(id, &local_err); - if (local_err) { - error_report_err(local_err); - } - return; - } - - blk =3D blk_by_name(id); - if (!blk) { - error_report("Device '%s' not found", id); - return; - } - - if (!blk_legacy_dinfo(blk)) { - error_report("Deleting device added with blockdev-add" - " is not supported"); - return; - } - - aio_context =3D blk_get_aio_context(blk); - aio_context_acquire(aio_context); - - bs =3D blk_bs(blk); - if (bs) { - if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_DRIVE_DEL, &local_err)) { - error_report_err(local_err); - aio_context_release(aio_context); - return; - } - - blk_remove_bs(blk); - } - - /* Make the BlockBackend and the attached BlockDriverState anonymous *= / - monitor_remove_blk(blk); - - /* 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)) { - /* Further I/O must not pause the guest */ - blk_set_on_error(blk, BLOCKDEV_ON_ERROR_REPORT, - BLOCKDEV_ON_ERROR_REPORT); - } else { - blk_unref(blk); - } - - aio_context_release(aio_context); -} - void qmp_block_resize(bool has_device, const char *device, bool has_node_name, const char *node_name, int64_t size, Error **errp) diff --git a/include/block/block-hmp-commands.h b/include/block/block-hmp-c= ommands.h index 4f9033a8a6..c5e394c0fc 100644 --- a/include/block/block-hmp-commands.h +++ b/include/block/block-hmp-commands.h @@ -5,4 +5,7 @@ =20 void hmp_drive_add(Monitor *mon, const QDict *qdict); =20 +void hmp_commit(Monitor *mon, const QDict *qdict); +void hmp_drive_del(Monitor *mon, const QDict *qdict); + #endif diff --git a/include/sysemu/blockdev.h b/include/sysemu/blockdev.h index d34c4920dc..a86d99b3d8 100644 --- a/include/sysemu/blockdev.h +++ b/include/sysemu/blockdev.h @@ -57,8 +57,4 @@ QemuOpts *drive_add(BlockInterfaceType type, int index, c= onst char *file, DriveInfo *drive_new(QemuOpts *arg, BlockInterfaceType block_default_type, Error **errp); =20 -/* device-hotplug */ - -void hmp_commit(Monitor *mon, const QDict *qdict); -void hmp_drive_del(Monitor *mon, const QDict *qdict); #endif --=20 2.17.2