[PATCH 0/4] brd: sanity checks and dynamic ram disk creation/destroying

From: Hannes Frederic Sowa
Date: Sat Oct 20 2012 - 14:32:33 EST


While toying around with a library which needs small block devices for
quorum management, I came up with these patches to dynamically create
and destroy ram disks (I wanted to have non-swappable backed devices).

Feedback is appreciated!

Change log (since RFC patch <20121014024836.GB27966@xxxxxxxxxxxxxxxxxxxxxxxxx>):
1) module parameters(rd_nr, rd_size, max_part) are now unsigned ints
2) check for active users of ram disk before BLKFLSBUFing
3) switched from lists to idrs for device management

The patches apply against v3.6.

Documentation/ioctl/ioctl-number.txt | 1 +
block/partition-generic.c | 1 +
drivers/block/brd.c | 360 +++++++++++++++++++++++++++++------
include/linux/Kbuild | 1 +
include/linux/brd.h | 12 ++
include/linux/miscdevice.h | 1 +
6 files changed, 313 insertions(+), 63 deletions(-)



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