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4 Commits

Author SHA1 Message Date
Akinobu Mita fb19974630 block: fix blk_register_queue() return value 
blk_register_queue() returns -ENXIO when queue->request_fn is NULL.  But there
are some block drivers that call blk_register_queue() via add_disk() with
queue->request_fn == NULL.  (For example, brd, loop)

Although no one checks return value of blk_register_queue(), this patch makes
it return 0 instead of -ENXIO when queue->request_fn is NULL,

Also this patch adds warning when blk_register_queue() and
blk_unregister_queue() are called with queue == NULL rather than ignore
invalid usage silently.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
 2008-04-21 09:51:06 +02:00
Jens Axboe 6728cb0e63 block: make core bits checkpatch compliant 
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
 2008-02-01 09:26:33 +01:00
Martin K. Petersen e68b903c6b Expose hardware sector size 
Expose hardware sector size in sysfs queue directory.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
 2008-01-29 21:55:17 +01:00
Jens Axboe 8324aa91d1 block: split tag and sysfs handling from blk-core.c 
Seperates the tag and sysfs handling from ll_rw_blk.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
 2008-01-29 21:55:07 +01:00