From: Mike Snitzer Date: Tue, 11 May 2010 06:57:42 +0000 (+0200) Subject: block: allow initialization of previously allocated request_queue X-Git-Tag: v2.6.35-rc1~442^2~58 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=01effb0dc1451fad55925873ffbfb88fa4eadce0;p=pandora-kernel.git block: allow initialization of previously allocated request_queue blk_init_queue() allocates the request_queue structure and then initializes it as needed (request_fn, elevator, etc). Split initialization out to blk_init_allocated_queue_node. Introduce blk_init_allocated_queue wrapper function to model existing blk_init_queue and blk_init_queue_node interfaces. Export elv_register_queue to allow a newly added elevator to be registered with sysfs. Export elv_unregister_queue for symmetry. These changes allow DM to initialize a device's request_queue with more precision. In particular, DM no longer unconditionally initializes a full request_queue (elevator et al). It only does so for a request-based DM device. Signed-off-by: Mike Snitzer Signed-off-by: Jens Axboe --- Reading git-diff-tree failed