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2006-04-13[SCSI] unify SCSI_IOCTL_SEND_COMMAND implementationsChristoph Hellwig1-29/+72
We currently have two implementations of this obsolete ioctl, one in the block layer and one in the scsi code. Both of them have drawbacks. This patch kills the scsi layer version after updating the block version with the missing bits: - argument checking - use scatterlist I/O - set number of retries based on the submitted command This is the last user of non-S/G I/O except for the gdth driver, so getting this in ASAP and through the scsi tree would be nie to kill the non-S/G I/O path. Jens, what do you think about adding a check for non-S/G I/O in the midlayer? Thanks to Or Gerlitz for testing this patch. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-08[PATCH] blk: Fix SG_IO ioctl failure retry loopingJens Axboe1-0/+3
When issuing an SG_IO ioctl through sd that resulted in an unrecoverable error, a nearly infinite retry loop was discovered. This is due to the fact that the block layer SG_IO code is not setting up rq->retries. This patch also fixes up the sg_scsi_ioctl path. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: Jens Axboe <axboe@suse.de>
2006-01-12[PATCH] move capable() to capability.hRandy.Dunlap1-0/+1
- Move capable() from sched.h to capability.h; - Use <linux/capability.h> where capable() is used (in include/, block/, ipc/, kernel/, a few drivers/, mm/, security/, & sound/; many more drivers/ to go) Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-09[BLOCK] scsi_ioctl: file can be NULL from ioctl_by_bdev()Jens Axboe1-4/+9
Signed-off-by: Jens Axboe <axboe@suse.de>
2006-01-06[BLOCK] mark some block/ variables consArjan van de Ven1-1/+1
the patch below marks various read-only variables in block/* as const, so that gcc can optimize the use of them; eg gcc will replace the use by the value directly now and will even remove the memory usage of these. Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Jens Axboe <axboe@suse.de>
2006-01-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds1-1/+1
2005-12-20[PATCH] block: Cleanup CDROMEJECT ioctlBen Collins1-14/+31
This is just a basic cleanup. No change in functionality. Signed-off-by: Ben Collins <bcollins@ubuntu.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-16[SCSI] seperate max_sectors from max_hw_sectorsMike Christie1-1/+1
- export __blk_put_request and blk_execute_rq_nowait needed for async REQ_BLOCK_PC requests - seperate max_hw_sectors and max_sectors for block/scsi_ioctl.c and SG_IO bio.c helpers per Jens's last comments. Since block/scsi_ioctl.c SG_IO was already testing against max_sectors and SCSI-ml was setting max_sectors and max_hw_sectors to the same value this does not change any scsi SG_IO behavior. It only prepares ll_rw_blk.c, scsi_ioctl.c and bio.c for when SCSI-ml begins to set a valid max_hw_sectors for all LLDs. Today if a LLD does not set it SCSI-ml sets it to a safe default and some LLDs set it to a artificial low value to overcome memory and feedback issues. Note: Since we now cap max_sectors to BLK_DEF_MAX_SECTORS, which is 1024, drivers that used to call blk_queue_max_sectors with a large value of max_sectors will now see the fs requests capped to BLK_DEF_MAX_SECTORS. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-04[BLOCK] Move all core block layer code to new block/ directoryJens Axboe1-0/+589
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>