From d134b00b9acca3fb054d7c88a5f5d562ecbb42d1 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Sun, 31 Jul 2011 22:08:04 +0200 Subject: loop: add BLK_DEV_LOOP_MIN_COUNT=%i to allow distros 0 pre-allocated loop devices Instead of unconditionally creating a fixed number of dead loop devices which need to be investigated by storage handling services, even when they are never used, we allow distros start with 0 loop devices and have losetup(8) and similar switch to the dynamic /dev/loop-control interface instead of searching /dev/loop%i for free devices. Signed-off-by: Kay Sievers Signed-off-by: Jens Axboe --- drivers/block/Kconfig | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/block/Kconfig') diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index 717d6e4e18d..57212c5235e 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -256,6 +256,21 @@ config BLK_DEV_LOOP Most users will answer N here. +config BLK_DEV_LOOP_MIN_COUNT + int "Number of loop devices to pre-create at init time" + depends on BLK_DEV_LOOP + default 8 + help + Static number of loop devices to be unconditionally pre-created + at init time. + + This default value can be overwritten on the kernel command + line or with module-parameter loop.max_loop. + + The historic default is 8. If a late 2011 version of losetup(8) + is used, it can be set to 0, since needed loop devices can be + dynamically allocated with the /dev/loop-control interface. + config BLK_DEV_CRYPTOLOOP tristate "Cryptoloop Support" select CRYPTO -- cgit v1.2.3-18-g5258 From ea5e116162b7e0cf83a2b8a273440514404604de Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Wed, 3 Aug 2011 11:12:17 -0400 Subject: xen/blkback: Make description more obvious. With the frontend having Xen but the backend not, it just looks odd: <*> Xen virtual block device support <*> Block-device backend driver Fix it to have the 'Xen' in front of it. Reported-by: Sander Eikelenboom Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/block/Kconfig') diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index 717d6e4e18d..a89ebf1b28a 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -471,7 +471,7 @@ config XEN_BLKDEV_FRONTEND in another domain which drives the actual block device. config XEN_BLKDEV_BACKEND - tristate "Block-device backend driver" + tristate "Xen block-device backend driver" depends on XEN_BACKEND help The block-device backend driver allows the kernel to export its -- cgit v1.2.3-18-g5258