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authorKay Sievers <kay.sievers@vrfy.org>2011-07-31 22:08:04 +0200
committerJens Axboe <jaxboe@fusionio.com>2011-07-31 22:08:04 +0200
commitd134b00b9acca3fb054d7c88a5f5d562ecbb42d1 (patch)
treeccc63647ec8a551289f26866ec86091e44266bad /drivers/block/Kconfig
parent770fe30a46a12b6fb6b63fbe1737654d28e84844 (diff)
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 <kay.sievers@vrfy.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers/block/Kconfig')
-rw-r--r--drivers/block/Kconfig15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 717d6e4e18d3..57212c5235e2 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