09 Dec, 2006
7 commits
-
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] Poison init section before freeing it.
[S390] Use add_active_range() and free_area_init_nodes().
[S390] Virtual memmap for s390.
[S390] Update documentation for dynamic subchannel mapping.
[S390] Use dev->groups for adding/removing the subchannel attribute group.
[S390] Support for disconnected devices reappearing on another subchannel.
[S390] subchannel lock conversion.
[S390] Some preparations for the dynamic subchannel mapping patch.
[S390] runtime switch for qdio performance statistics
[S390] New DASD feature for ERP related logging
[S390] add reset call handler to the ap bus.
[S390] more workqueue fixes.
[S390] workqueue fixes.
[S390] uaccess_pt: add missing down_read() and convert to is_init(). -
This patch adds a new ioctl range for the mbxfb driver.
Signed-off-by: Raphael Assenat
Cc: "Antonino A. Daplas"
Acked-by: James Simmons
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Correct, disambiguate, and reformat documentation.
Signed-off-by: Don Mullis
Cc: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch provides stacktrace filtering feature.
The stacktrace filter allows failing only for the caller you are
interested in.For example someone may want to inject kmalloc() failures into
only e100 module. they want to inject not only direct kmalloc() call,
but also indirect allocation, too.- e100_poll --> netif_receive_skb --> packet_rcv_spkt --> skb_clone
--> kmem_cache_allocThis patch enables to detect function calls like this by stacktrace
and inject failures. The script Documentaion/fault-injection/failmodule.sh
helps it.The range of text section of loaded e100 is expected to be
[/sys/module/e100/sections/.text, /sys/module/e100/sections/.exit.text)So failmodule.sh stores these values into /debug/failslab/address-start
and /debug/failslab/address-end. The maximum stacktrace depth is specified
by /debug/failslab/stacktrace-depth.Please see the example that demonstrates how to inject slab allocation
failures only for a specific module
in Documentation/fault-injection/fault-injection.txt[dwm@meer.net: reject failure if any caller lies within specified range]
Signed-off-by: Akinobu Mita
Signed-off-by: Don Mullis
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch provides fault-injection capability for kmalloc.
Boot option:
failslab=,,,
-- specifies the interval of failures.
-- specifies how often it should fail in percent.
-- specifies the size of free space where memory can be
allocated safely in bytes.-- specifies how many times failures may happen at most.
Debugfs:
/debug/failslab/interval
/debug/failslab/probability
/debug/failslab/specifies
/debug/failslab/times
/debug/failslab/ignore-gfp-highmem
/debug/failslab/ignore-gfp-waitExample:
failslab=10,100,0,-1
slab allocation (kmalloc(), kmem_cache_alloc(),..) fails once per 10 times.
Cc: Pekka Enberg
Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch set provides some fault-injection capabilities.
- kmalloc() failures
- alloc_pages() failures
- disk IO errors
We can see what really happens if those failures happen.
In order to enable these fault-injection capabilities:
1. Enable relevant config options (CONFIG_FAILSLAB, CONFIG_PAGE_ALLOC,
CONFIG_MAKE_REQUEST) and if you want to configure them via debugfs,
enable CONFIG_FAULT_INJECTION_DEBUG_FS.2. Build and boot with this kernel
3. Configure fault-injection capabilities behavior by boot option or debugfs
- Boot option
failslab=
fail_page_alloc=
fail_make_request=- Debugfs
/debug/failslab/*
/debug/fail_page_alloc/*
/debug/fail_make_request/*Please refer to the Documentation/fault-injection/fault-injection.txt
for details.4. See what really happens.
Signed-off-by: Akinobu Mita
Signed-off-by: Don Mullis
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add a sysfs and debugfs interface to the pktcdvd driver.
Look into the Documentation/ABI/testing/* files in the patch for more info.
Signed-off-by: Thomas Maier
Signed-off-by: Peter Osterlund
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Dec, 2006
29 commits
-
Signed-off-by: Cornelia Huck
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Martin Schwidefsky -
Conflicts:
drivers/usb/input/hid.h
-
Follow-up to patch "Consolidate driver registering":
Since I plan the lifetime of Linux 2.6.20 to be the deprecation phase
of CONFIG_IEEE1394_EXPORT_FULL_API, it seems fair to keep all previously
exported symbols available with this option until this phase is over.Signed-off-by: Stefan Richter
-
There is no manpower available to reform oui.db into a library for use
in more kernel subsystems. The low ratio of usefulness to size and the
occasional need to update oui.db from IEEE's official list suggest to
drop oui.db. I plan to make a userspace script available which
translates the remaining numeric sysfs attributes to names of
organizations.Signed-off-by: Stefan Richter
-
This also means that former parts of ieee1394's API will be subject to
change or removal.Signed-off-by: Stefan Richter
-
Signed-off-by: Stefan Richter
-
Known to be affected:
- libdc1394: prefers video1394 for now, old-style raw1394 support might
be dropped eventually
- OpenH323 PWLib, AVC video input module: uses libraw1394's old APISigned-off-by: Stefan Richter
-
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (48 commits)
[NETFILTER]: Fix non-ANSI func. decl.
[TG3]: Identify Serdes devices more clearly.
[TG3]: Use msleep.
[TG3]: Use netif_msg_*.
[TG3]: Allow partial speed advertisement.
[TG3]: Add TG3_FLG2_IS_NIC flag.
[TG3]: Add 5787F device ID.
[TG3]: Fix Phy loopback.
[WANROUTER]: Kill kmalloc debugging code.
[TCP] inet_twdr_hangman: Delete unnecessary memory barrier().
[NET]: Memory barrier cleanups
[IPSEC]: Fix inetpeer leak in ipv4 xfrm dst entries.
audit: disable ipsec auditing when CONFIG_AUDITSYSCALL=n
audit: Add auditing to ipsec
[IRDA] irlan: Fix compile warning when CONFIG_PROC_FS=n
[IrDA]: Incorrect TTP header reservation
[IrDA]: PXA FIR code device model conversion
[GENETLINK]: Fix misplaced command flags.
[NETLIK]: Add a pointer to the Generic Netlink wiki page.
[IPV6] RAW: Don't release unlocked sock.
... -
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (156 commits)
[PATCH] x86-64: Export smp_call_function_single
[PATCH] i386: Clean up smp_tune_scheduling()
[PATCH] unwinder: move .eh_frame to RODATA
[PATCH] unwinder: fully support linker generated .eh_frame_hdr section
[PATCH] x86-64: don't use set_irq_regs()
[PATCH] x86-64: check vector in setup_ioapic_dest to verify if need setup_IO_APIC_irq
[PATCH] x86-64: Make ix86 default to HIGHMEM4G instead of NOHIGHMEM
[PATCH] i386: replace kmalloc+memset with kzalloc
[PATCH] x86-64: remove remaining pc98 code
[PATCH] x86-64: remove unused variable
[PATCH] x86-64: Fix constraints in atomic_add_return()
[PATCH] x86-64: fix asm constraints in i386 atomic_add_return
[PATCH] x86-64: Correct documentation for bzImage protocol v2.05
[PATCH] x86-64: replace kmalloc+memset with kzalloc in MTRR code
[PATCH] x86-64: Fix numaq build error
[PATCH] x86-64: include/asm-x86_64/cpufeature.h isn't a userspace header
[PATCH] unwinder: Add debugging output to the Dwarf2 unwinder
[PATCH] x86-64: Clarify error message in GART code
[PATCH] x86-64: Fix interrupt race in idle callback (3rd try)
[PATCH] x86-64: Remove unwind stack pointer alignment forcing again
...Fixed conflict in include/linux/uaccess.h manually
Signed-off-by: Linus Torvalds
-
Add the ability to hot add and remove interfaces in the ipmi_si driver. Any
users who have the device open will get errors if they try to send a message.Signed-off-by: Corey Minyard
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This modifies the IPMI driver so that a lower-level interface can be
dynamically removed while in use so it can support hot-removal of hardware.It also adds the ability to specify and dynamically change the IPMI interface
the watchdog timer and the poweroff code use.Signed-off-by: Corey Minyard
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Sometimes the kernel prints something interesting while userspace bootup
keeps messages turned off via loglevel. Enable the printing of /all/
kernel messages via the "ignore_loglevel" boot option. Off by default.Signed-off-by: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
[jengelh@linux01.gwdg.de: cleanups]
Signed-off-by: Jan Engelhardt
Acked-by: Torben Mathiasen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove two different changelog files from fs/sysv/ and merges the INTRO
file into Documentation/filesystems/sysv-fs.txtSigned-off-by: Adrian Bunk
Cc: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pass struct dev pointer to dma_cache_sync()
dma_cache_sync() is ill-designed in that it does not have a struct device
pointer argument which makes proper support for systems that consist of a
mix of coherent and non-coherent DMA devices hard. Change dma_cache_sync
to take a struct device pointer as first argument and fix all its callers
to pass it.Signed-off-by: Ralf Baechle
Cc: James Bottomley
Cc: "David S. Miller"
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
dma_is_consistent() is ill-designed in that it does not have a struct
device pointer argument which makes proper support for systems that consist
of a mix of coherent and non-coherent DMA devices hard. Change
dma_is_consistent to take a struct device pointer as first argument and fix
the sole caller to pass it.Signed-off-by: Ralf Baechle
Cc: James Bottomley
Cc: "David S. Miller"
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove the videodev chapter from the kernel-api book. It's done much better
in the videobook kernel-doc.Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add Fusion and I2O message-based device interfaces to kernel-api book.
Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Implement prof=sleep profiling. TASK_UNINTERRUPTIBLE sleeps will be taken
as a profile hit, and every millisecond spent sleeping causes a profile-hit
for the call site that initiated the sleep.Sample readprofile output on i386:
306 ps2_sendbyte 1.3973
432 call_usermodehelper_keys 1.9548
484 ps2_command 0.6453
790 __driver_attach 4.7879
1593 msleep 44.2500
3976 sync_buffer 64.1290
4076 do_lookup 12.4648
8587 sync_page 122.6714
20820 total 0.0067(NOTE: architectures need to check whether get_wchan() can be called from
deep within the wakeup path.)akpm: we need to mark more functions __sched. lock_sock(), msleep(), others..
akpm: the contention in do_lookup() is a surprise. Presumably doing disk
reads for directory contents while holding i_mutex.[akpm@osdl.org: various fixes]
Signed-off-by: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fixed long-lived typo: remount_fs() needs BKL
Signed-off-by: Vasily Averin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This allows a hyphenated range of positive numbers in the string passed
to command line helper function, get_options.Currently the command line option "isolcpus=" takes as its argument a
list of cpus.Format: ,...,
Valid values of include all cpus, 0 to "number of CPUs in
system - 1". This can get extremely long when isolating the majority of
cpus on a large system. The kernel isolcpus code would not need any
changing to use this feature. To use it, the change would be in the
command line format for 'isolcpus='
Format:
,...,
or
- (must be a positive range in ascending
order.)
or a mixture
,...,-Signed-off-by: Derek Fults
Cc: "Randy.Dunlap"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Documentation update, adding references to CFQ scheduler and to another
document about selecting IO Schedulers.Signed-off-by: Filipe Lautert
Cc: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add 'blksize' option for block device based filesystems. During
initialization this is used to set the block size on the device and the super
block. The default block size is 512bytes.Signed-off-by: Miklos Szeredi
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
I never intended this, but people started using fuse to implement block device
based "real" filesystems (ntfs-3g, zfs).The following four patches add better support for these kinds of filesystems.
Unlike "normal" fuse filesystems, using this feature should require superuser
privileges (enforced by the fusermount utility).Thanks to Szabolcs Szakacsits for the input and testing.
This patch adds a 'fuseblk' filesystem type, which is only different from the
'fuse' filesystem type in how the 'dev_name' mount argument is interpreted.Signed-off-by: Miklos Szeredi
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Linus posted quite nice TRACE_RESUME how-to, and I think it is too nice to
be hidden in archives of mailing list, so I turned it into Documentation
piece.Signed-off-by: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The swsusp userland interface has recently changed for a couple of times, but
the changes have not been documented. Fix this, and document the
SNAPSHOT_SET_SWAP_AREA ioctl().Signed-off-by: Rafael J. Wysocki
Acked-by: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Document the "resume_offset=" command line parameter as well as the way in
which swap files are supported by swsusp.Signed-off-by: Rafael J. Wysocki
Cc: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Replace all uses of kmem_cache_t with struct kmem_cache.
The patch was generated using the following script:
#!/bin/sh
#
# Replace one string by another in all the kernel sources.
#set -e
for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
quilt add $file
sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
mv /tmp/$$ $file
quilt refresh
doneThe script was run like this
sh replace kmem_cache_t "struct kmem_cache"
Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When using numa=fake on non-NUMA hardware there is no benefit to having the
alien caches, and they consume much memory.Add a kernel boot option to disable them.
Christoph sayeth "This is good to have even on large NUMA. The problem is
that the alien caches grow by the square of the size of the system in terms of
nodes."Cc: Christoph Lameter
Cc: Pekka Enberg
Cc: Manfred Spraul
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Dec, 2006
4 commits
-
Add a pointer to the OSDL wiki page on Generic Netlink.
Signed-off-by: Paul Moore
Signed-off-by: David S. Miller -
Correct the documentation for bzImage protocol extension due to relocatable
bzImage.Signed-off-by: Vivek Goyal
Signed-off-by: Andi Kleen
Cc: Andi Kleen
Acked-by: "H. Peter Anvin"
Signed-off-by: Andrew Morton -
Add debugging printks to the unwinder to allow easier debugging
when something goes wrong with it.This can be controlled with the new unwinder_debug=N option
Most output is given by N=1AK: Added documentation of unwinder_debug=
Signed-off-by: Jan Beulich
Signed-off-by: Andi Kleen -
-mregparm=3 has been enabled by default for some time on i386, and AFAIK
there aren't any problems with it left.This patch removes the REGPARM config option and sets -mregparm=3
unconditionally.Signed-off-by: Adrian Bunk
Signed-off-by: Andi Kleen
