diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2013-07-11 12:52:34 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2013-10-11 16:50:01 +0200 |
| commit | 326642bc7f0ff95a0c08db527861a9a114a109da (patch) | |
| tree | f0bd11e35ced3f2bc251250e69efff7b9dda28b5 | |
| parent | d26c9a15738147a8dccc451c6f6d1ddc2305713d (diff) | |
| download | qemu-326642bc7f0ff95a0c08db527861a9a114a109da.tar.gz | |
blockdev: Separate ID generation from DriveInfo creation
blockdev-add shouldn't automatically generate IDs, but will keep most of
the DriveInfo creation code.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
| -rw-r--r-- | blockdev.c | 32 | ||||
| -rw-r--r-- | include/qemu/option.h | 1 | ||||
| -rw-r--r-- | util/qemu-option.c | 6 |
3 files changed, 24 insertions, 15 deletions
diff --git a/blockdev.c b/blockdev.c index 9929d781a5..c1fcd3c8d3 100644 --- a/blockdev.c +++ b/blockdev.c @@ -600,23 +600,25 @@ static DriveInfo *blockdev_init(QemuOpts *all_opts, return NULL; } - /* init */ - - dinfo = g_malloc0(sizeof(*dinfo)); - if ((buf = qemu_opts_id(opts)) != NULL) { - dinfo->id = g_strdup(buf); - } else { - /* no id supplied -> create one */ - dinfo->id = g_malloc0(32); - if (type == IF_IDE || type == IF_SCSI) + /* no id supplied -> create one */ + if (qemu_opts_id(opts) == NULL) { + char *new_id; + if (type == IF_IDE || type == IF_SCSI) { mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd"; - if (max_devs) - snprintf(dinfo->id, 32, "%s%i%s%i", - if_name[type], bus_id, mediastr, unit_id); - else - snprintf(dinfo->id, 32, "%s%s%i", - if_name[type], mediastr, unit_id); + } + if (max_devs) { + new_id = g_strdup_printf("%s%i%s%i", if_name[type], bus_id, + mediastr, unit_id); + } else { + new_id = g_strdup_printf("%s%s%i", if_name[type], + mediastr, unit_id); + } + qemu_opts_set_id(opts, new_id); } + + /* init */ + dinfo = g_malloc0(sizeof(*dinfo)); + dinfo->id = g_strdup(qemu_opts_id(opts)); dinfo->bdrv = bdrv_new(dinfo->id); dinfo->bdrv->open_flags = snapshot ? BDRV_O_SNAPSHOT : 0; dinfo->bdrv->read_only = ro; diff --git a/include/qemu/option.h b/include/qemu/option.h index 63db4ccb9a..5c0c6dd294 100644 --- a/include/qemu/option.h +++ b/include/qemu/option.h @@ -142,6 +142,7 @@ void qemu_opts_loc_restore(QemuOpts *opts); int qemu_opts_set(QemuOptsList *list, const char *id, const char *name, const char *value); const char *qemu_opts_id(QemuOpts *opts); +void qemu_opts_set_id(QemuOpts *opts, char *id); void qemu_opts_del(QemuOpts *opts); void qemu_opts_validate(QemuOpts *opts, const QemuOptDesc *desc, Error **errp); int qemu_opts_do_parse(QemuOpts *opts, const char *params, const char *firstname); diff --git a/util/qemu-option.c b/util/qemu-option.c index e0844a966c..efcb5dcfcb 100644 --- a/util/qemu-option.c +++ b/util/qemu-option.c @@ -834,6 +834,12 @@ const char *qemu_opts_id(QemuOpts *opts) return opts->id; } +/* The id string will be g_free()d by qemu_opts_del */ +void qemu_opts_set_id(QemuOpts *opts, char *id) +{ + opts->id = id; +} + void qemu_opts_del(QemuOpts *opts) { QemuOpt *opt; |