apfs/linux-apfs
0
0
Fork 0
mirror of https://github.com/linux-apfs/linux-apfs.git synced 2026-05-01 15:00:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

brd: add ram disk visibility option

Browse Source 
Currenly ram disk is not visiable inside /proc/partitions. This was
done for compatibility reasons here: 53978d0a7a. 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>
This commit is contained in:
Dmitry Monakhov
2014-08-18 12:49:08 +04:00
committed by Jens Axboe
parent ffb5db73eb
commit aeac318194
1 changed files with 5 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/block/brd.c
+5 -1
View File
@@ -442,12 +442,15 @@ static int rd_nr;
int rd_size = CONFIG_BLK_DEV_RAM_SIZE; int rd_size = CONFIG_BLK_DEV_RAM_SIZE;
static int max_part; static int max_part;
static int part_shift; static int part_shift;
static int part_show = 0;
module_param(rd_nr, int, S_IRUGO); module_param(rd_nr, int, S_IRUGO);
MODULE_PARM_DESC(rd_nr, "Maximum number of brd devices"); MODULE_PARM_DESC(rd_nr, "Maximum number of brd devices");
module_param(rd_size, int, S_IRUGO); module_param(rd_size, int, S_IRUGO);
MODULE_PARM_DESC(rd_size, "Size of each RAM disk in kbytes."); MODULE_PARM_DESC(rd_size, "Size of each RAM disk in kbytes.");
module_param(max_part, int, S_IRUGO); module_param(max_part, int, S_IRUGO);
MODULE_PARM_DESC(max_part, "Maximum number of partitions per RAM disk"); 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_LICENSE("GPL");
MODULE_ALIAS_BLOCKDEV_MAJOR(RAMDISK_MAJOR); MODULE_ALIAS_BLOCKDEV_MAJOR(RAMDISK_MAJOR);
MODULE_ALIAS("rd"); MODULE_ALIAS("rd");
@@ -501,7 +504,8 @@ static struct brd_device *brd_alloc(int i)
disk->fops = &brd_fops; disk->fops = &brd_fops;
disk->private_data = brd; disk->private_data = brd;
disk->queue = brd->brd_queue; 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); sprintf(disk->disk_name, "ram%d", i);
set_capacity(disk, rd_size * 2); set_capacity(disk, rd_size * 2);