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After discussions in the thread titled:
[PATCH] scsi_debug: illegal blocking memory allocation
here is a patch containing the discussed fix and some other
fixes and additions. The patch is against lk 2.6.20-rc3 .
The version is bumped to 1.81 .
ChangeLog:
- Change several GFP_KERNEL allocations to GFP_ATOMIC
as they can be called from queuecommand() context
- check above allocation returns and if out of memory
report DID_REQUEUE in two cases, DID_NO_CONNECT in
another, and fail slave configure() in another
- add support for WRITE BUFFER command
- add aborted_command error injection support
(opts mask 0x10), similar mechanism to
recovered_error injection.
Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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This patch adds support for REPORT TARGET PORT GROUPS. This is used
eg for the multipathing priority callout to determine the path
priority.
With this patch multipath-tools can use the existing mpath_prio_alua
callout to exercise the path priority grouping.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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See http://www.torque.net/sg/sdebug26.html for more
information on the scsi_debug driver.
ChangeLog:
- add 'vpd_use_hostno' parameter to allow simulated hosts
to see the same set of targets (and luns). For testing
multipath software.
- add 'fake_rw' parameter to ignore the data in READ and
WRITE commands
- add support for log subpages (new in SPC-4)
- yield appropriate block descriptor for MODE SENSE
commands (only for pdt=0 (i.e. disks))
- REQUEST SENSE response no longer shows the stopped
power condition (SAT changed to agree with SPC-3)
Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Check all __must_check warnings in scsi_debug.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Conflicts:
drivers/scsi/nsp32.c
drivers/scsi/pcmcia/nsp_cs.c
Removal of randomness flag conflicts with SA_ -> IRQF_ global
replacement.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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- add 'virtual_gb' parameter to simulate large storage
(by wrapping in dev_size_mb megabytes of actual ram)
- add 'no_lun_0' parameter to skip lun 0 on each target
(but still respond as required to INQUIRY + REPORT LUNS)
- add well know lu support
- add MODE SELECT commands support [pages: 0xa and 0x1c]
- add LOG SENSE command support [pages: 0xd and 0x2f]
- add READ CAPACITY (16) support
- increase number of mode pages supported (to read),
mainly transport specific (SAS) mode (sub)pages
- add more VPD pages and extend others, including
ATA information VPD page
- START STOP UNIT now maintains a state machine
- READ (16) and WRITE (16) cope with lbas larger
than 32 bits (needed for the 'virtual_gb' parameter)
- allow single command transfers up to 32 MB
- more precise error (sense data) messages
Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Change the core SCSI code to use kzalloc rather than kmalloc+memset
where possible.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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This patch removes almost all inclusions of linux/version.h. The 3
#defines are unused in most of the touched files.
A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is
unfortunatly in linux/version.h.
There are also lots of #ifdef for long obsolete kernels, this was not
touched. In a few places, the linux/version.h include was move to where
the LINUX_VERSION_CODE was used.
quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'`
search pattern:
/UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h
Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Wrap a highly common idiom. Makes the code easier to read, helps pave
the way for sdev->{id,channel} removal, and adds a token that can easily
by grepped-for in the future.
There are a couple sdev_id() and scmd_printk() updates thrown in as well.
Rejections fixed up and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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rejections fixed and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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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>
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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!
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Douglas Gilbert
Hannes Reinecke
Randy Dunlap
James Bottomley
Jörn Engel
Jes Sorensen
Russell King
James Bottomley
Christoph Hellwig
Olaf Hering
Jeff Garzik
Adrian Bunk
Linus Torvalds