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loop: replace linked list of allocated devices with an idr index

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Replace the linked list, that keeps track of allocated devices, with an
idr index to allow a more efficient lookup of devices.

Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Kay Sievers
2011-07-31 22:08:04 +02:00
committed by Jens Axboe
parent aa387cc895
commit 34dd82afd2
2 changed files with 80 additions and 73 deletions
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include/linux/loop.h
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@ -64,7 +64,6 @@ struct loop_device {
struct request_queue *lo_queue;
struct gendisk *lo_disk;
struct list_head lo_list;
};
#endif /* __KERNEL__ */