diff options
| author | Dmitry Monakhov <dmonakhov@openvz.org> | 2014-08-18 12:49:08 +0400 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-08-21 20:42:01 -0500 |
| commit | aeac31819475ad0980cb3a13d5599f5a1127e83d (patch) | |
| tree | 4ba8ca3d8212e6396b1235e8277fe7a7cfb6ca27 /drivers/block/brd.c | |
| parent | ffb5db73ebe9b5c37fd741e1684833dd674372bd (diff) | |
brd: add ram disk visibility option
Currenly ram disk is not visiable inside /proc/partitions. This was
done for compatibility reasons here: 53978d0a7a27. But some utilities
expect disk presents in /proc/partitions.
Let's add module's option and let's administrator chose visibility behaviour.
By default, old behaviour preserved.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block/brd.c')
| -rw-r--r-- | drivers/block/brd.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/block/brd.c b/drivers/block/brd.c index c7d138eca73..3598110d2ce 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -442,12 +442,15 @@ static int rd_nr; int rd_size = CONFIG_BLK_DEV_RAM_SIZE; static int max_part; static int part_shift; +static int part_show = 0; module_param(rd_nr, int, S_IRUGO); MODULE_PARM_DESC(rd_nr, "Maximum number of brd devices"); module_param(rd_size, int, S_IRUGO); MODULE_PARM_DESC(rd_size, "Size of each RAM disk in kbytes."); module_param(max_part, int, S_IRUGO); MODULE_PARM_DESC(max_part, "Maximum number of partitions per RAM disk"); +module_param(part_show, int, S_IRUGO); +MODULE_PARM_DESC(part_show, "Control RAM disk visibility in /proc/partitions"); MODULE_LICENSE("GPL"); MODULE_ALIAS_BLOCKDEV_MAJOR(RAMDISK_MAJOR); MODULE_ALIAS("rd"); @@ -501,7 +504,8 @@ static struct brd_device *brd_alloc(int i) disk->fops = &brd_fops; disk->private_data = brd; disk->queue = brd->brd_queue; - disk->flags |= GENHD_FL_SUPPRESS_PARTITION_INFO; + if (!part_show) + disk->flags |= GENHD_FL_SUPPRESS_PARTITION_INFO; sprintf(disk->disk_name, "ram%d", i); set_capacity(disk, rd_size * 2); |