154 Commits

Author	SHA1	Message	Date
Tejun Heo	407df2aa29	[BLOCK] elevator: run queue in elevator_switch ... elevator_dispatch needs to run queue after forced dispatching; otherwise, the queue might stall. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>	2005-11-12 10:55:37 +01:00
Zachary Amsden	cff3ba2204	[BLOCK] elevator init fixes #2 ... In addition to the first patch, which is probably goodness, I found the cause of my panic - applying this patch fixes it and now I am booting. If the chosen_elevator[] is not found, fall back to noop. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jens Axboe <axboe@suse.de>	2005-11-12 10:55:05 +01:00
Zachary Amsden	b8ea2cb512	[BLOCK] elevator init fixes ... I got a panic in the elevator code, backtrace : Unable to handle kernel NULL pointer dereference at virtual address 00000060 .. EIP is at elevator_put+0x0/0x30 (null elevator_type passed) .. elevator_init+0x38 blk_init_queu_node+0xc9 floppy_init+0xdb do_initcalls+0x23 init+0x10a init+0x0 Clearly if the kmalloc here fails, e->elevator_type is not yet set; this appears to be the correct fix, but I think I probably hit the second case due to a race condition. Someone more familiar with the elevator code should look at this more closely until I can determine if I can reproduce. Signed-off-by: Zachary Amsden <zach@vmware.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jens Axboe <axboe@suse.de>	2005-11-12 10:54:48 +01:00
Jens Axboe	3a65dfe8c0	[BLOCK] Move all core block layer code to new block/ directory ... drivers/block/ is right now a mix of core and driver parts. Lets move the core parts to a new top level directory. Al will move the fs/ related block parts to block/ next. Signed-off-by: Jens Axboe <axboe@suse.de>	2005-11-04 08:43:35 +01:00