From: Dmitry Monakhov <dmonakhov@openvz.org>
To: linux-kernel@vger.kernel.org
Cc: axboe@fb.com, Dmitry Monakhov <dmonakhov@openvz.org>
Subject: [PATCH] brd: add ram disk visibility option
Date: Sat, 16 Aug 2014 19:55:30 +0400 [thread overview]
Message-ID: <1408204530-16726-1-git-send-email-dmonakhov@openvz.org> (raw)
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index c7d138e..3598110 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);
--
1.7.1
next reply other threads:[~2014-08-16 15:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-16 15:55 Dmitry Monakhov [this message]
2014-08-17 18:45 ` Jens Axboe
2014-08-18 8:49 ` Dmitry Monakhov
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