kernel.git/drivers/scsi/sr.c, branch linux-2.6.19.y

[SCSI] hide EH backup data outside the scsi_cmnd

2006-07-09T16:56:44Z

Currently struct scsi_cmnd has various fields that are used to backup original data after the corresponding fields have been overridden for EH commands. This means drivers can easily get at it and misuse it. Due to the old_ naming this doesn't happen for most of them, but two that have different names have been used wrong a lot (see previous patch). Another downside is that they unessecarily bloat the scsi_cmnd size. This patch moves them onstack in scsi_send_eh_cmnd to fix those two issues aswell as allowing future EH fixes like moving the EH command submissions to use SG lists like everything else. Signed-off-by: Christoph Hellwig Signed-off-by: James Bottomley

[SCSI] sd/scsi_lib simplify sd_rw_intr and scsi_io_completion

2006-06-26T15:00:20Z

This patch simplifies "good_bytes" computation in sd_rw_intr(). sd: "good_bytes" computation is always done in terms of the resolution of the device's medium, since after that it is the number of good bytes we pass around and other layers/contexts (as opposed ot sd) can translate that to their own resolution (block layer:512). It also makes scsi_io_completion() processing more straightforward, eliminating the 3rd argument to the function. It also fixes a couple of bugs like not checking return value, using "break" instead of "return;", etc. I've been running with this patch for some time now on a test (do-it-all) system. Signed-off-by: Luben Tuikov Signed-off-by: James Bottomley

[SCSI] fix up request buffer reference in various scsi drivers

2006-06-06T15:07:25Z

Various scsi drivers use scsi_cmnd.buffer and scsi_cmnd.bufflen in their queuecommand functions. Those fields are internal storage for the midlayer only and are used to restore the original payload after request_buffer and request_bufflen have been overwritten for EH. Using the buffer and bufflen fields means they do very broken things in error handling. Signed-off-by: Christoph Hellwig Signed-off-by: James Bottomley

[PATCH] kill cdrom ->dev_ioctl method

2006-03-23T15:38:09Z

Since early 2.4.x all cdrom drivers implement the block_device methods themselves, so they can handle additional ioctls directly instead of going through the cdrom layer. Signed-off-by: Christoph Hellwig Acked-by: Jens Axboe Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[SCSI] MODULE_ALIAS_{BLOCK,CHAR}DEV_MAJOR for drivers/scsi

2006-03-12T15:11:16Z

Add device-major aliases in drivers/scsi, allowing kmod autoload: MODULE_ALIAS_CHARDEV_MAJOR(SCSI_CHANGER_MAJOR) MODULE_ALIAS_CHARDEV_MAJOR(OSST_MAJOR) MODULE_ALIAS_CHARDEV_MAJOR(SCSI_TAPE_MAJOR) MODULE_ALIAS_BLOCKDEV_MAJOR(SCSI_CDROM_MAJOR) MODULE_ALIAS_BLOCKDEV_MAJOR(SCSI_DISKN_MAJOR) Signed-off-by: Andrew Morton Acked-by: Kai Makisara Signed-off-by: James Bottomley

[SCSI] Remove devfs support from the SCSI subsystem

2006-02-28T04:55:04Z

As devfs has been disabled from the kernel tree for a number of months now (5 to be exact), here's a patch against 2.6.16-rc1-git1 that removes support for it from the SCSI subsystem. The patch also removes the scsi_disk devfs_name field as it's no longer needed. Signed-off-by: Greg Kroah-Hartman Signed-off-by: James Bottomley

[SCSI] SCSI core kmalloc2kzalloc

2006-02-28T04:55:02Z

Change the core SCSI code to use kzalloc rather than kmalloc+memset where possible. Signed-off-by: Jes Sorensen Signed-off-by: James Bottomley

[PATCH] Unlinline a bunch of other functions

2006-01-15T02:27:06Z

Remove the "inline" keyword from a bunch of big functions in the kernel with the goal of shrinking it by 30kb to 40kb Signed-off-by: Arjan van de Ven Signed-off-by: Ingo Molnar Acked-by: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[SCSI] always handle REQ_BLOCK_PC requests in common code

2006-01-14T16:54:45Z

LLDDs should never see REQ_BLOCK_PC requests, we can handle them just fine in the core code. There is a small behaviour change in that some check in sr's rw_intr are bypassed, but I consider the old behaviour a bug. Mike found this cleanup opportunity and provdided early patches, so all the credit goes to him, even if I redid the patches from scratch beause that was easier than forward-porting the old patches. Signed-off-by: Christoph Hellwig Signed-off-by: James Bottomley

[SCSI] Mask capabilities for SCSI-1 CD drive

2006-01-12T17:56:01Z

SCSI-1 CD drives can't do MRW or be opened for writing, so mask off those capabilities. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Acked-by: Jens Axboe Signed-off-by: James Bottomley