~dvdhrm/linux - Private linux-kernel wip tree

Age	Commit message (Collapse)	Author	Files	Lines
2008-10-27	scsi: make sure that scsi_init_shared_tag_map() doesn't overwrite existing map	Jens Axboe	1	-2/+12
	Right now callers have to check whether scsi_host->bqt is already set up, it's much cleaner to just have scsi_init_shared_tag_map() does this check on its own. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-10-04	[PATCH] helper function for retrieving scsi_cmd given host based block layer tag	David C Somayajulu	1	-0/+20
	This was necessitated by the need for a function to get back to a scsi_cmnd, when an hba the posts its (corresponding) completion interrupt with a block layer tag as its reference. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-09-30	[PATCH] BLOCK: Make it possible to disable the block layer [try #6]	David Howells	1	-1/+2
	Make it possible to disable the block layer. Not all embedded devices require it, some can make do with just JFFS2, NFS, ramfs, etc - none of which require the block layer to be present. This patch does the following: () Introduces CONFIG_BLOCK to disable the block layer, buffering and blockdev support. () Adds dependencies on CONFIG_BLOCK to any configuration item that controls an item that uses the block layer. This includes: () Block I/O tracing. () Disk partition code. () All filesystems that are block based, eg: Ext3, ReiserFS, ISOFS. () The SCSI layer. As far as I can tell, even SCSI chardevs use the block layer to do scheduling. Some drivers that use SCSI facilities - such as USB storage - end up disabled indirectly from this. () Various block-based device drivers, such as IDE and the old CDROM drivers. () MTD blockdev handling and FTL. () JFFS - which uses set_bdev_super(), something it could avoid doing by taking a leaf out of JFFS2's book. () Makes most of the contents of linux/blkdev.h, linux/buffer_head.h and linux/elevator.h contingent on CONFIG_BLOCK being set. sector_div() is, however, still used in places, and so is still available. () Also made contingent are the contents of linux/mpage.h, linux/genhd.h and parts of linux/fs.h. () Makes a number of files in fs/ contingent on CONFIG_BLOCK. () Makes mm/bounce.c (bounce buffering) contingent on CONFIG_BLOCK. () set_page_dirty() doesn't call __set_page_dirty_buffers() if CONFIG_BLOCK is not enabled. () fs/no-block.c is created to hold out-of-line stubs and things that are required when CONFIG_BLOCK is not set: () Default blockdev file operations (to give error ENODEV on opening). () Makes some /proc changes: () /proc/devices does not list any blockdevs. () /proc/diskstats and /proc/partitions are contingent on CONFIG_BLOCK. () Makes some compat ioctl handling contingent on CONFIG_BLOCK. () If CONFIG_BLOCK is not defined, makes sys_quotactl() return -ENODEV if given command other than Q_SYNC or if a special device is specified. () In init/do_mounts.c, no reference is made to the blockdev routines if CONFIG_BLOCK is not defined. This does not prohibit NFS roots or JFFS2. () The bdflush, ioprio_set and ioprio_get syscalls can now be absent (return error ENOSYS by way of cond_syscall if so). () The seclvl_bd_claim() and seclvl_bd_release() security calls do nothing if CONFIG_BLOCK is not set, since they can't then happen. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2006-09-30	[PATCH] Split struct request ->flags into two parts	Jens Axboe	1	-1/+1
	Right now ->flags is a bit of a mess: some are request types, and others are just modifiers. Clean this up by splitting it into ->cmd_type and ->cmd_flags. This allows introduction of generic Linux block message types, useful for sending generic Linux commands to block devices. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-09-02	[SCSI] add failure return to scsi_init_shared_tag_map()	James Bottomley	1	-1/+2
	And use it in the stex driver. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-31	[SCSI] add shared tag map helpers	James Bottomley	1	-1/+13
	This patch adds support for sharing tag maps at the host level (i.e. either every queue [LUN] has its own tag map or there's a single one for the entire host). This formulation is primarily intended to help single issue queue hardware, like the aic7xxx Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-04-16	Linux-2.6.12-rc2v2.6.12-rc2	Linus Torvalds	1	-0/+134
	Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!