tree 15b311da1a9aa36b24f98ae914456ecb90e247f3
parent bae386f7884aa3720cc7880b36a41a1d2b9c327b
author Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> 1149502141 +0200
committer Jens Axboe <axboe@nelson.home.kernel.dk> 1151075438 +0200

[PATCH] blk_start_queue() must be called with irq disabled - add warning

The queue lock can be taken from interrupts so it must always be taken with
irq disabling primitives.  Some primitives already verify this.
blk_start_queue() is called under this lock, so interrupts must be
disabled.

Also document this requirement clearly in blk_init_queue(), where the queue
spinlock is set.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jens Axboe <axboe@suse.de>