07 Jan, 2006
36 commits
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Signed-off-by: Markus Lidel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- make i2o_iop_free() static inline (from Adrian Bunk)
- changed kmalloc() + memset(0) into kzalloc()
Signed-off-by: Markus Lidel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix some typos and minor code beautifying.
Signed-off-by: Markus Lidel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- Removed some kmalloc's with __GFP_ZERO and replace it with memset()
because it didn't work properly.- Fixed returned message frame in i2o_cfg_passthru() which caused raidutils
to display wrong error message in case a disk was missing.- Fixed size of printk() in i2o_scsi.c.
- Fixed get_device() and put_device() in probing of the I2O controller.
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Removed wrong I2O device class, which was only needed to add sysfs attributes.
Signed-off-by: Markus Lidel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix lot of BE LE bugs which prevent it from working on SPARC.
Signed-off-by: Markus Lidel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Changed the I2O API to create I2O messages first in kernel memory and then
transfer it at once over the PCI bus instead of sending each quad-word over
the PCI bus.Signed-off-by: Markus Lidel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Sanitize some s390 Kconfig options. We have ARCH_S390, ARCH_S390X,
ARCH_S390_31, 64BIT, S390_SUPPORT and COMPAT. Replace these 6 options by
S390, 64BIT and COMPAT.Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When the sclp_cpi module is loaded on a system which does not support the
required SCLP call (e.g. on z/VM), ENOSUPP is returned to user space. The
correct return value is EOPNOTSUPP.Signed-off-by: Peter Oberparleiter
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- Use kzalloc() in blacklist.c.
- Kill unwanted casts in blacklist.c.
- Provide release function for struct channel_subsystem.Signed-off-by: Cornelia Huck
Cc: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Eric Rossman
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add support for multiple subchannel sets. Works with arbitrary devices in
subchannel set 1 and is transparent to device drivers. Although currently
only two subchannel sets are available, this will work with the architectured
maximum number of subchannel sets as well.Signed-off-by: Cornelia Huck
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Convert /proc/cio_ignore to a sequential file. This makes multiple subchannel
sets support easier.Signed-off-by: Cornelia Huck
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
struct channel_subsystem encapsulates several per channel subsystem
properties, like status of chpids or the global path group id.Signed-off-by: Cornelia Huck
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
for_each_subchannel() is an iterator calling a function for every possible
subchannel id until non-zero is returned. Convert the current iterating
functions to it.Signed-off-by: Cornelia Huck
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch introduces a struct subchannel_id containing the subchannel number
(formerly referred to as "irq") and switches code formerly relying on the
subchannel number over to it.While we're touching inline assemblies anyway, make sure they have correct
memory constraints.Signed-off-by: Cornelia Huck
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
New feature V=V qdio pass-through.
QDIO and HiperSockets processing in z/VM V=V guest environments (as well as
V=R with z/VM running in LPAR mode) requires shadowing of all QDIO
architecture queue elements. Especially the shadowing of SBALs and SLSBs
structures in the hypervisor, and the need to issue SIGA SYNC operations to
observe state changes, eventually causes significant CPU processing overhead
in the hypervisor.The QDIO pass-through support for V=V guests avoids the shadowing of SBALs and
SLSBs. This significantly reduces the hypervisor overhead for QDIO based I/O.Signed-off-by: Frank Pavlic
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
To properly support multipath-failover handling, the linux block layer has
introduced a special request flag, 'REQ_FAILFAST'. This flag is now used to
return requests immediately in case the device is not operational.Signed-off-by: Horst Hummel
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The IOCTL BIODASDPRRD had no return code for 'profiling is inactive' and
therefore tunedasd wrote misleading message for request-counter = 0.
Introduce return-code EIO for inactive profiling.Signed-off-by: Horst Hummel
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Extract the s390_root_dev_* functions from the common I/O layer as they are
also used by non-ccw device drivers.Signed-off-by: Carsten Otte
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
If we receive path not operational indications (pnom in pmcw nonzero), we
switch off those paths. To catch them becoming available again, we have to
recalculate the lpm from the pmcw each time we start path verification.Signed-off-by: Cornelia Huck
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Moved definition of CMS volume label to vtoc.h and modify partitions/ibm.c to
use this volume label definition instead of anonymous array.Signed-off-by: Peter Oberparleiter
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Hugh Dickins
Fix the broken atomic_cmpxchg primitive. Add atomic_sub_and_test,
atomic64_sub_return, atomic64_sub_and_test, atomic64_cmpxchg,
atomic64_add_unless and atomic64_inc_not_zero. Replace old style
atomic_compare_and_swap by atomic_cmpxchg. Shorten the whole header by
defining most primitives with the two inline functions atomic_add_return and
atomic_sub_return.In addition this patch contains the s390 related fixes of Hugh's "mm: fill
arch atomic64 gaps" patch.Signed-off-by: Martin Schwidefsky
Signed-off-by: Hugh Dickins
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We had a report from one loony user who tried out suspend to disk using a
swap partition on a firewire drive. As the firewire thread was put to
sleep it didn't work out too well.Signed-off-by: Dave Jones
Cc: Pavel Machek
Cc: Ben Collins
Cc: Jody McIntyre
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add support to hw_random for the Geode LX HRNG device.
Signed-off-by: Jordan Crouse
Cc: Alan Cox
Cc: Jeff Garzik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
PnP BIOS data, code, and 32-bit entry segments all have fixed limits as well;
set them in the GDT rather than adding more code. It would be nice to add
these fixups to the boot GDT rather than setting the GDT for each CPU; perhaps
I can wiggle this in later, but getting it in before the subsys init looks
tricky.Also, make some progress on deprecating the ugly Q_SET_SEL macros.
Signed-off-by: Zachary Amsden
Cc: "Seth, Rohit"
Cc: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The one remaining caller of set_limit, the PnP BIOS code, calls into the PnP
BIOS, passing kernel parameters in and out. These parameteres may be passed
from arbitrary kernel virtual memory, so they deserve strict protection to
stop a bad BIOS from smashing beyond the object size.Unfortunately, the use of set_limit was badly botching this by setting the
limit in terms of pages, when it really should have byte granularity.When doing this, I discovered my BIOS had the buggy code during the "get
system device node" call:mov ax, es:[bx]
Which is harmless, but has a trivial workaround.
Signed-off-by: Zachary Amsden
Cc: "Seth, Rohit"
Cc: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Move PnP BIOS segment definitions into segment.h; the segments are reserved
here, so they might as well be defined here as well.Note I didn't do this for APM BIOS, as Macintosh and other systems use those
values to emulate APM in some scary way I don't want to understand.Signed-off-by: Zachary Amsden
Acked-by: "Seth, Rohit"
Cc: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make GDT page aligned and page padded to support running inside of a
hypervisor. This prevents false sharing of the GDT page with other hot
data, which is not allowed in Xen, and causes performance problems in
VMware.Rather than go back to the old method of statically allocating the GDT
(which wastes unneded space for non-present CPUs), the GDT for APs is
allocated dynamically.Signed-off-by: Zachary Amsden
Cc: "Seth, Rohit"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Only output the messages about fan speed changes with a verbose=1 module
param.Signed-off-by: Fabio M. Di Nitto
Signed-off-by: Ben Collins
Cc: Benjamin Herrenschmidt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Before this patch we were just using the "classic" /dev/ttySx devices.
However when another on the system is loaded that uses those (like drivers for
serial PCMCIA), that creates a conflict for the minors. Therefore, we now use
/dev/ttyPSC[0:5] (note the 0-based numbering !) with some minors we've been
assigned in the "Low Density Serial port major"Signed-off-by: Sylvain Munaut
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Wolfgang Denk
Signed-off-by: Sylvain Munaut
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
therm_pm72.c and windfarm_lm75_sensor.c both store the return from
i2c_add_driver() but do no further processing on the result. Simply return
what i2c_add_driver() did, instead.Signed-off-by: Arthur Othieno
Acked-by: Benjamin Herrenschmidt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
register_memory is global and declared so in linux/memory.h. Update the
HOTPLUG specific definition to match. This fixes a compile warning when
HOTPLUG is enabled.Signed-off-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Both register_memory_notifer and unregister_memory_notifier are global and
declared so in linux/memory.h. Update the HOTPLUG specific definitions to
match. This fixes a compile warning when HOTPLUG is enabled.Signed-off-by: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Janos Haar of First NetCenter Bt. reported numerous crashes involving the
NBD driver. With his help, this was tracked down to bogus bio vectors
which in turn was the result of a race condition between the
receive/transmit routines in the NBD driver.The bug manifests itself like this:
CPU0 CPU1
do_nbd_request
add req to queuelist
nbd_send_request
send req head
for each bio
kmap
send
nbd_read_stat
nbd_find_request
nbd_end_request
kunmapWhen CPU1 finishes nbd_end_request, the request and all its associated
bio's are freed. So when CPU0 calls kunmap whose argument is derived from
the last bio, it may crash.Under normal circumstances, the race occurs only on the last bio. However,
if an error is encountered on the remote NBD server (such as an incorrect
magic number in the request), or if there were a bug in the server, it is
possible for the nbd_end_request to occur any time after the request's
addition to the queuelist.The following patch fixes this problem by making sure that requests are not
added to the queuelist until after they have been completed transmission.In order for the receiving side to be ready for responses involving
requests still being transmitted, the patch introduces the concept of the
active request.When a response matches the current active request, its processing is
delayed until after the tranmission has come to a stop.This has been tested by Janos and it has been successful in curing this
race condition.From: Herbert Xu
Here is an updated patch which removes the active_req wait in
nbd_clear_queue and the associated memory barrier.I've also clarified this in the comment.
Signed-off-by: Herbert Xu
Cc:
Cc: Paul Clements
Signed-off-by: Herbert Xu
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
06 Jan, 2006
4 commits
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Add some PCMCIA device IDs for the microdrive found in the Sharp Zaurus
and a different revision of the Socket CF+ Bluetooth card.Signed-off-by: Richard Purdie
Signed-off-by: Dominik Brodowski
