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Re: [PATCH v3 04/13] monitor/hmp: move hmp_drive_del and hmp_commit to b
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [PATCH v3 04/13] monitor/hmp: move hmp_drive_del and hmp_commit to block-hmp-cmds.c |
Date: |
Tue, 28 Jan 2020 17:51:47 +0000 |
User-agent: |
Mutt/1.13.3 (2020-01-12) |
* Maxim Levitsky (address@hidden) wrote:
> Signed-off-by: Maxim Levitsky <address@hidden>
Reviewed-by: Dr. David Alan Gilbert <address@hidden>
(It's easier to compare if you keep the function order the same)
> ---
> 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"
>
> -
> void hmp_drive_add(Monitor *mon, const QDict *qdict)
> {
> Error *err = NULL;
> @@ -69,3 +69,98 @@ err:
> blk_unref(blk);
> }
> }
> +
> +void hmp_drive_del(Monitor *mon, const QDict *qdict)
> +{
> + const char *id = qdict_get_str(qdict, "id");
> + BlockBackend *blk;
> + BlockDriverState *bs;
> + AioContext *aio_context;
> + Error *local_err = NULL;
> +
> + bs = bdrv_find_node(id);
> + if (bs) {
> + qmp_blockdev_del(id, &local_err);
> + if (local_err) {
> + error_report_err(local_err);
> + }
> + return;
> + }
> +
> + blk = 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 = blk_get_aio_context(blk);
> + aio_context_acquire(aio_context);
> +
> + bs = 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 = qdict_get_str(qdict, "device");
> + BlockBackend *blk;
> + int ret;
> +
> + if (!strcmp(device, "all")) {
> + ret = blk_commit_all();
> + } else {
> + BlockDriverState *bs;
> + AioContext *aio_context;
> +
> + blk = 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 = blk_bs(blk);
> + aio_context = bdrv_get_aio_context(bs);
> + aio_context_acquire(aio_context);
> +
> + ret = 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_name,
> const char *qdev_id,
> return blk;
> }
>
> -void hmp_commit(Monitor *mon, const QDict *qdict)
> -{
> - const char *device = qdict_get_str(qdict, "device");
> - BlockBackend *blk;
> - int ret;
> -
> - if (!strcmp(device, "all")) {
> - ret = blk_commit_all();
> - } else {
> - BlockDriverState *bs;
> - AioContext *aio_context;
> -
> - blk = 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 = blk_bs(blk);
> - aio_context = bdrv_get_aio_context(bs);
> - aio_context_acquire(aio_context);
> -
> - ret = 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_bitmap_sha256(const char *node,
> return ret;
> }
>
> -void hmp_drive_del(Monitor *mon, const QDict *qdict)
> -{
> - const char *id = qdict_get_str(qdict, "id");
> - BlockBackend *blk;
> - BlockDriverState *bs;
> - AioContext *aio_context;
> - Error *local_err = NULL;
> -
> - bs = bdrv_find_node(id);
> - if (bs) {
> - qmp_blockdev_del(id, &local_err);
> - if (local_err) {
> - error_report_err(local_err);
> - }
> - return;
> - }
> -
> - blk = 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 = blk_get_aio_context(blk);
> - aio_context_acquire(aio_context);
> -
> - bs = 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-commands.h
> index 4f9033a8a6..c5e394c0fc 100644
> --- a/include/block/block-hmp-commands.h
> +++ b/include/block/block-hmp-commands.h
> @@ -5,4 +5,7 @@
>
> void hmp_drive_add(Monitor *mon, const QDict *qdict);
>
> +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,
> const char *file,
> DriveInfo *drive_new(QemuOpts *arg, BlockInterfaceType block_default_type,
> Error **errp);
>
> -/* device-hotplug */
> -
> -void hmp_commit(Monitor *mon, const QDict *qdict);
> -void hmp_drive_del(Monitor *mon, const QDict *qdict);
> #endif
> --
> 2.17.2
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK
[PATCH v3 04/13] monitor/hmp: move hmp_drive_del and hmp_commit to block-hmp-cmds.c, Maxim Levitsky, 2020/01/27
- Re: [PATCH v3 04/13] monitor/hmp: move hmp_drive_del and hmp_commit to block-hmp-cmds.c,
Dr. David Alan Gilbert <=
[PATCH v3 05/13] monitor/hmp: move hmp_drive_mirror and hmp_drive_backup to block-hmp-cmds.c, Maxim Levitsky, 2020/01/27
[PATCH v3 06/13] monitor/hmp: move hmp_block_job* to block-hmp-cmds.c, Maxim Levitsky, 2020/01/27
[PATCH v3 07/13] monitor/hmp: move hmp_snapshot_* to block-hmp-cmds.c, Maxim Levitsky, 2020/01/27
[PATCH v3 08/13] monitor/hmp: move hmp_nbd_server* to block-hmp-cmds.c, Maxim Levitsky, 2020/01/27