diff options
author | Christoph Hellwig <hch@lst.de> | 2021-11-22 14:06:14 +0100 |
---|---|---|
committer | Jens Axboe <axboe@kernel.dk> | 2021-11-29 06:35:21 -0700 |
commit | 1a827ce1b9f2c740d2c6a228afd972970c18bc21 (patch) | |
tree | 9d3b582342492a6a23bcd2ef39f9d3a46279b81b /drivers/block | |
parent | 1545e0b419ba1d9b9bee4061d4826340afe6b0aa (diff) | |
download | linux-stable-1a827ce1b9f2c740d2c6a228afd972970c18bc21.tar.gz linux-stable-1a827ce1b9f2c740d2c6a228afd972970c18bc21.tar.bz2 linux-stable-1a827ce1b9f2c740d2c6a228afd972970c18bc21.zip |
block: remove GENHD_FL_CD
GENHD_FL_CD marks a gendisk as a vaguely CD-ROM like device.
Besides being used internally inside of sunvdc.c an xen-blkfront it
is used by xen-blkback as a hint to claim a device exported to a
guest is a CD-ROM like device. Just check for disk->cdi instead
which is the right indicator for "real" CD-ROM or DVD drivers. This
will miss the paravirtualized guest drivers, but those make little
sense to report anyway.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211122130625.1136848-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
-rw-r--r-- | drivers/block/sunvdc.c | 17 | ||||
-rw-r--r-- | drivers/block/xen-blkback/xenbus.c | 2 | ||||
-rw-r--r-- | drivers/block/xen-blkfront.c | 26 |
3 files changed, 21 insertions, 24 deletions
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c index 6f45a53f7cbf..2157936de623 100644 --- a/drivers/block/sunvdc.c +++ b/drivers/block/sunvdc.c @@ -143,8 +143,8 @@ static int vdc_getgeo(struct block_device *bdev, struct hd_geometry *geo) static int vdc_ioctl(struct block_device *bdev, fmode_t mode, unsigned command, unsigned long argument) { + struct vdc_port *port = bdev->bd_disk->private_data; int i; - struct gendisk *disk; switch (command) { case CDROMMULTISESSION: @@ -155,12 +155,15 @@ static int vdc_ioctl(struct block_device *bdev, fmode_t mode, return 0; case CDROM_GET_CAPABILITY: - disk = bdev->bd_disk; - - if (bdev->bd_disk && (disk->flags & GENHD_FL_CD)) + if (!vdc_version_supported(port, 1, 1)) + return -EINVAL; + switch (port->vdisk_mtype) { + case VD_MEDIA_TYPE_CD: + case VD_MEDIA_TYPE_DVD: return 0; - return -EINVAL; - + default: + return -EINVAL; + } default: pr_debug(PFX "ioctl %08x not supported\n", command); return -EINVAL; @@ -854,14 +857,12 @@ static int probe_disk(struct vdc_port *port) switch (port->vdisk_mtype) { case VD_MEDIA_TYPE_CD: pr_info(PFX "Virtual CDROM %s\n", port->disk_name); - g->flags |= GENHD_FL_CD; g->flags |= GENHD_FL_REMOVABLE; set_disk_ro(g, 1); break; case VD_MEDIA_TYPE_DVD: pr_info(PFX "Virtual DVD %s\n", port->disk_name); - g->flags |= GENHD_FL_CD; g->flags |= GENHD_FL_REMOVABLE; set_disk_ro(g, 1); break; diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 914587aabca0..62125fd4af4a 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -510,7 +510,7 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle, } vbd->size = vbd_sz(vbd); - if (vbd->bdev->bd_disk->flags & GENHD_FL_CD || cdrom) + if (cdrom || disk_to_cdi(vbd->bdev->bd_disk)) vbd->type |= VDISK_CDROM; if (vbd->bdev->bd_disk->flags & GENHD_FL_REMOVABLE) vbd->type |= VDISK_REMOVABLE; diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 8e3983e456f3..700c765a759a 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -198,6 +198,7 @@ struct blkfront_info struct gendisk *gd; u16 sector_size; unsigned int physical_sector_size; + unsigned long vdisk_info; int vdevice; blkif_vdev_t handle; enum blkif_state connected; @@ -505,6 +506,7 @@ static int blkif_getgeo(struct block_device *bd, struct hd_geometry *hg) static int blkif_ioctl(struct block_device *bdev, fmode_t mode, unsigned command, unsigned long argument) { + struct blkfront_info *info = bdev->bd_disk->private_data; int i; switch (command) { @@ -514,9 +516,9 @@ static int blkif_ioctl(struct block_device *bdev, fmode_t mode, return -EFAULT; return 0; case CDROM_GET_CAPABILITY: - if (bdev->bd_disk->flags & GENHD_FL_CD) - return 0; - return -EINVAL; + if (!(info->vdisk_info & VDISK_CDROM)) + return -EINVAL; + return 0; default: return -EINVAL; } @@ -1057,9 +1059,8 @@ static char *encode_disk_name(char *ptr, unsigned int n) } static int xlvbd_alloc_gendisk(blkif_sector_t capacity, - struct blkfront_info *info, - u16 vdisk_info, u16 sector_size, - unsigned int physical_sector_size) + struct blkfront_info *info, u16 sector_size, + unsigned int physical_sector_size) { struct gendisk *gd; int nr_minors = 1; @@ -1157,15 +1158,11 @@ static int xlvbd_alloc_gendisk(blkif_sector_t capacity, xlvbd_flush(info); - if (vdisk_info & VDISK_READONLY) + if (info->vdisk_info & VDISK_READONLY) set_disk_ro(gd, 1); - - if (vdisk_info & VDISK_REMOVABLE) + if (info->vdisk_info & VDISK_REMOVABLE) gd->flags |= GENHD_FL_REMOVABLE; - if (vdisk_info & VDISK_CDROM) - gd->flags |= GENHD_FL_CD; - return 0; out_free_tag_set: @@ -2304,7 +2301,6 @@ static void blkfront_connect(struct blkfront_info *info) unsigned long long sectors; unsigned long sector_size; unsigned int physical_sector_size; - unsigned int binfo; int err, i; struct blkfront_ring_info *rinfo; @@ -2342,7 +2338,7 @@ static void blkfront_connect(struct blkfront_info *info) err = xenbus_gather(XBT_NIL, info->xbdev->otherend, "sectors", "%llu", §ors, - "info", "%u", &binfo, + "info", "%u", &info->vdisk_info, "sector-size", "%lu", §or_size, NULL); if (err) { @@ -2371,7 +2367,7 @@ static void blkfront_connect(struct blkfront_info *info) } } - err = xlvbd_alloc_gendisk(sectors, info, binfo, sector_size, + err = xlvbd_alloc_gendisk(sectors, info, sector_size, physical_sector_size); if (err) { xenbus_dev_fatal(info->xbdev, err, "xlvbd_add at %s", |