Commit Graph

12 Commits

Author SHA1 Message Date
Christoph Hellwig e02f3f5922 [SCSI] remove target parent limitiation
When James Smart fixed the issue of the userspace scan atributes
crashing the system with the FC transport class he added a patch to
let the transport class check if the parent is valid for a given
transport class.

When adding support for the integrated raid of fusion sas devices
we ran into a problem with that, as it didn't allow adding virtual
raid volumes without the transport class knowing about it.

So this patch adds a user_scan attribute instead, that takes over from
scsi_scan_host_selected if the transport class sets it and thus lets
the transport class control the user-initiated scanning.  As this
plugs the hole about user-initiated scanning the target_parent hook
goes away and we rely on callers of the scanning routines to do
something sensible.

For SAS this meant I had to switch from a spinlock to a mutex to
synchronize the topology linked lists, in FC they were completely
unsynchronized which seems wrong.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-01-14 10:55:05 -06:00
Jens Axboe 1aea6434ee [SCSI] Kill the SCSI softirq handling
This patch moves the SCSI softirq handling to the block layer version.
There should be no functional changes.

Signed-off-by: Jens Axboe <axboe@suse.de>
2006-01-09 16:03:03 +01:00
Mike Christie 6e68af666f [SCSI] Convert SCSI mid-layer to scsi_execute_async
Add scsi helpers to create really-large-requests and convert
scsi-ml to scsi_execute_async().

Per Jens's previous comments, I placed this function in scsi_lib.c.
I made it follow all the queue's limits - I think I did at least :), so
I removed the warning on the function header.

I think the scsi_execute_* functions should eventually take a request_queue
and be placed some place where the dm-multipath hw_handler can use them
if that failover code is going to stay in the kernel. That conversion
patch will be sent in another mail though.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-12-14 19:03:35 -08:00
James Bottomley 7f23e146a1 [SCSI] correct some dropped const compiler warnings
Make the vendor, model and rev fields in scsi_device pointers to const
and update a few prototypes of functions using them.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-12-13 18:12:05 -07:00
Christoph Hellwig 7dfdc9a52b [SCSI] use a completion in scsi_send_eh_cmnd
scsi_send_eh_cmnd currently uses a semaphore and an overload of eh_timer
to either get a completion for a command for a timeout.
Switch to using a completion and wait_for_completion_timeout to simply
the code and not having to deal with the races ourselves.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 12:49:36 -06:00
Alan Stern 903f4fed85 [SCSI] fix callers of scsi_remove_device() who already hold the scan muted
This patch (as544) adds a private entry point to scsi_remove_device, for
use when callers already own the scan_mutex.  The appropriate callers are
modified to use the new entry point.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-09 10:28:17 -05:00
Christoph Hellwig fe1b2d544d [SCSI] unexport scsi_add_timer/scsi_delete_timer
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-06 17:26:37 -05:00
Christoph Hellwig 3111b0d164 [SCSI] remove scsi_eh_eflags_ macros
Just opencoded access to eh_eflags, it's much more readable anyway.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-26 12:17:24 -05:00
Christoph Hellwig b4edcbcafd [SCSI] remove scsi_cmnd->owner
never checked anywhere

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-26 12:15:28 -05:00
Adrian Bunk 52c1da3953 [PATCH] make various thing static
Another rollup of patches which give various symbols static scope

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-24 00:06:43 -07:00
d3a933dc98 [PATCH] scsi: remove unused scsi_cmnd->internal_timeout field
scsi_cmnd->internal_timeout field doesn't have any meaning
anymore.  Kill the field.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-04-18 12:32:47 -05:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
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!
2005-04-16 15:20:36 -07:00