13 Dec, 2006
1 commit
-
This interface was useless as the LPC ISA-like interface is always
available, is faster, and is more reliable. This cuts the driver
size by some 20%.This change is also required to later convert the it87 driver to a
platform driver, so that we can get rid of i2c-isa in a near future.Signed-off-by: Jean Delvare
10 Dec, 2006
2 commits
-
General compile fixes for 2.6.16 for sun3, and some updates to make the new
bootloader work correctly. Tested on 3/50, 3/60, 3/80.Signed-off-by: Sam Creasey
Signed-off-by: Geert Uytterhoeven
Signed-off-by: Linus Torvalds -
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[NETLINK]: Put {IFA,IFLA}_{RTA,PAYLOAD} macros back for userspace.
[NET_SCHED] sch_htb: turn intermediate classes into leaves
[NET_SCHED] sch_cbq: deactivating when grafting, purging etc.
[XFRM]: Fix XFRMGRP_REPORT to use correct multicast group.
[NET]: Force a cache line split in hh_cache in SMP.
[NETPOLL]: make arp replies through netpoll use mac address of sender
[NETLINK]: Restore API compatibility of address and neighbour bits
[AX.25]: Fix default address and broadcast address initialization.
[AX.25]: Constify ax25 utility functions
[BNX2]: Add an error check.
[NET]: Convert hh_lock to seqlock.
09 Dec, 2006
37 commits
-
GLIBC uses them etc.
They are guarded by ifndef __KERNEL__ so nobody will start
accidently using them in the kernel again, it's just for
userspace.Signed-off-by: David S. Miller
-
XFRMGRP_REPORT uses 0x10 which is a group that belongs
to events. The correct value is 0x20.
We should really be using xfrm_nlgroups going forward; it was tempting
to delete the definition of XFRMGRP_REPORT but it would break at
least iproute2.Signed-off-by: J Hadi Salim
Signed-off-by: David S. Miller -
hh_lock was converted from rwlock to seqlock by Stephen.
To have a 100% benefit of this change, I suggest to place read mostly fields
of hh_cache in a separate cache line, because hh_refcnt may be changed quite
frequently on some busy machines.Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller -
Restore API compatibility due to bits moved from rtnetlink.h to
separate headers.Signed-off-by: Thomas Graf
Signed-off-by: David S. Miller -
Only the callsign but not the SSID part of an AX.25 address is ASCII
based but Linux by initializes the SSID which should be just a 4-bit
number from ASCII anyway.Fix that and convert the code to use a shared constant for both default
addresses. While at it, use the same style for null_ax25_address also.Signed-off-by: Ralf Baechle
Signed-off-by: David S. Miller -
Signed-off-by: Ralf Baechle
Signed-off-by: David S. Miller -
The hard header cache is in the main output path, so using
seqlock instead of reader/writer lock should reduce overhead.Signed-off-by: Stephen Hemminger
Signed-off-by: David S. Miller -
Signed-off-by: Vitaly Wool
Signed-off-by: Ralf Baechle -
Signed-off-by: Thomas Bogendoerfer
Signed-off-by: Ralf Baechle -
* '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(). -
pb_fnmode parameter has to be passed to usbhid, both for compatibility reasons
and also because it logically belongs there.Also removes empty hid-input.c file in drivers/usb/input.
Signed-off-by: Jiri Kosina
Signed-off-by: Marcel Holtmann
Cc: Dmitry Torokhov
Signed-off-by: Greg Kroah-Hartman -
hid_input_report() was needlessly USB-specific in USB HID. This patch
makes the function independent of HID implementation and fixes all
the current users. Bluetooth patches comply with this prototype.Signed-off-by: Jiri Kosina
Signed-off-by: Marcel Holtmann
Cc: Dmitry Torokhov
Signed-off-by: Greg Kroah-Hartman -
- hiddev is USB-only (agreed with Marcel Holtmann that Bluetooth currently
doesn't need it, and future planned interface (rawhid) will be more flexible
and usable)
- both HID and USB-hid can be now compiled as modules (wasn't possible before
hiddev was fully separated from generic HID layer)Signed-off-by: Jiri Kosina
Signed-off-by: Marcel Holtmann
Cc: Dmitry Torokhov
Signed-off-by: Greg Kroah-Hartman -
- 'dev' in struct hid_device changed from struct usb_device to
struct device and fixed all the users
- renamed functions which are part of USB HID API from 'hid_*' to
'usbhid_*'
- force feedback initialization moved from common part into USB-specific
driver
- added usbhid.h header for USB HID API users
- removed USB-specific fields from struct hid_device and moved them
to new usbhid_device, which is pointed to by hid_device->driver_data
- fixed all USB users to use this new structureSigned-off-by: Jiri Kosina
Signed-off-by: Marcel Holtmann
Cc: Dmitry Torokhov
Signed-off-by: Greg Kroah-Hartman -
- fixed generic API (added neccessary EXPORT_SYMBOL, fixed hid.h to provide correct
prototypes)
- extended hid_device with open/close/event function pointers to driver-specific
functions
- added driver specific driver_data to hid_deviceSigned-off-by: Jiri Kosina
Signed-off-by: Marcel Holtmann
Cc: Dmitry Torokhov
Signed-off-by: Greg Kroah-Hartman -
The "big main" split of USB HID code into generic HID code and
USB-transport specific HID handling.Signed-off-by: Jiri Kosina
Signed-off-by: Marcel Holtmann
Cc: Dmitry Torokhov
Signed-off-by: Greg Kroah-Hartman -
In device-mapper I/O is sometimes queued within targets for later processing.
For example the multipath target can be configured to store I/O when no paths
are available instead of returning it -EIO.This patch allows the device-mapper core to instruct a target to transfer the
contents of any such in-target queue back into the core. This frees up the
resources used by the target so the core can replace that target with an
alternative one and then resend the I/O to it. Without this patch the only
way to change the target in such circumstances involves returning the I/O with
an error back to the filesystem/application. In the multipath case, this
patch will let us add new paths for existing I/O to try after all the existing
paths have failed.DMF_NOFLUSH_SUSPENDING
----------------------If the DM_NOFLUSH_FLAG ioctl option is specified at suspend time, the
DMF_NOFLUSH_SUSPENDING flag is set in md->flags during dm_suspend(). It
is always cleared before dm_suspend() returns.The flag must be visible while the target is flushing pending I/Os so it
is set before presuspend where the flush starts and unset after the wait
for md->pending where the flush ends.Target drivers can check this flag by calling dm_noflush_suspending().
DM_MAPIO_REQUEUE / DM_ENDIO_REQUEUE
-----------------------------------A target's map() function can now return DM_MAPIO_REQUEUE to request the
device mapper core queue the bio.Similarly, a target's end_io() function can return DM_ENDIO_REQUEUE to request
the same. This has been labelled 'pushback'.The __map_bio() and clone_endio() functions in the core treat these return
values as errors and call dec_pending() to end the I/O.dec_pending
-----------dec_pending() saves the pushback request in struct dm_io->error. Once all
the split clones have ended, dec_pending() will put the original bio on
the md->pushback list. Note that this supercedes any I/O errors.It is possible for the suspend with DM_NOFLUSH_FLAG to be aborted while
in progress (e.g. by user interrupt). dec_pending() checks for this and
returns -EIO if it happened.pushdback list and pushback_lock
--------------------------------The bio is queued on md->pushback temporarily in dec_pending(), and after
all pending I/Os return, md->pushback is merged into md->deferred in
dm_suspend() for re-issuing at resume time.md->pushback_lock protects md->pushback.
The lock should be held with irq disabled because dec_pending() can be
called from interrupt context.Queueing bios to md->pushback in dec_pending() must be done atomically
with the check for DMF_NOFLUSH_SUSPENDING flag. So md->pushback_lock is
held when checking the flag. Otherwise dec_pending() may queue a bio to
md->pushback after the interrupted dm_suspend() flushes md->pushback.
Then the bio would be left in md->pushback.Flag setting in dm_suspend() can be done without md->pushback_lock because
the flag is checked only after presuspend and the set value is already
made visible via the target's presuspend function.The flag can be checked without md->pushback_lock (e.g. the first part of
the dec_pending() or target drivers), because the flag is checked again
with md->pushback_lock held when the bio is really queued to md->pushback
as described above. So even if the flag is cleared after the lockless
checkings, the bio isn't left in md->pushback but returned to applications
with -EIO.Other notes on the current patch
--------------------------------- md->pushback is added to the struct mapped_device instead of using
md->deferred directly because md->io_lock which protects md->deferred is
rw_semaphore and can't be used in interrupt context like dec_pending(),
and md->io_lock protects the DMF_BLOCK_IO flag of md->flags too.- Don't issue lock_fs() in dm_suspend() if the DM_NOFLUSH_FLAG
ioctl option is specified, because I/Os generated by lock_fs() would be
pushed back and never return if there were no valid devices.- If an error occurs in dm_suspend() after the DMF_NOFLUSH_SUSPENDING
flag is set, md->pushback must be flushed because I/Os may be queued to
the list already. (flush_and_out label in dm_suspend())Test results
------------I have tested using multipath target with the next patch.
The following tests are for regression/compatibility:
- I/Os succeed when valid paths exist;
- I/Os fail when there are no valid paths and queue_if_no_path is not
set;
- I/Os are queued in the multipath target when there are no valid paths and
queue_if_no_path is set;
- The queued I/Os above fail when suspend is issued without the
DM_NOFLUSH_FLAG ioctl option. I/Os spanning 2 multipath targets also
fail.The following tests are for the normal code path of new pushback feature:
- Queued I/Os in the multipath target are flushed from the target
but don't return when suspend is issued with the DM_NOFLUSH_FLAG
ioctl option;
- The I/Os above are queued in the multipath target again when
resume is issued without path recovery;
- The I/Os above succeed when resume is issued after path recovery
or table load;
- Queued I/Os in the multipath target succeed when resume is issued
with the DM_NOFLUSH_FLAG ioctl option after table load. I/Os
spanning 2 multipath targets also succeed.The following tests are for the error paths of the new pushback feature:
- When the bdget_disk() fails in dm_suspend(), the
DMF_NOFLUSH_SUSPENDING flag is cleared and I/Os already queued to the
pushback list are flushed properly.
- When suspend with the DM_NOFLUSH_FLAG ioctl option is interrupted,
o I/Os which had already been queued to the pushback list
at the time don't return, and are re-issued at resume time;
o I/Os which hadn't been returned at the time return with EIO.Signed-off-by: Kiyoshi Ueda
Signed-off-by: Jun'ichi Nomura
Signed-off-by: Alasdair G Kergon
Cc: dm-devel@redhat.com
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Provide a dm ioctl option to request noflush suspending. (See next patch for
what this is for.) As the interface is extended, the version number is
incremented.Other than accepting the new option through the interface, There is no change
to existing behaviour.Test results:
Confirmed the option is given from user-space correctly.Signed-off-by: Kiyoshi Ueda
Signed-off-by: Jun'ichi Nomura
Signed-off-by: Alasdair G Kergon
Cc: dm-devel@redhat.com
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Tighten the use of return values from the target map and end_io functions.
Values of 2 and above are now explictly reserved for future use. There are no
existing targets using such values.The patch has no effect on existing behaviour.
o Reserve return values of 2 and above from target map functions.
Any positive value currently indicates "mapping complete", but all
existing drivers use the value 1. We now make that a requirement
so we can assign new meaning to higher values in future.The new definition of return values from target map functions is:
< 0 : error
= 0 : The target will handle the io (DM_MAPIO_SUBMITTED).
= 1 : Mapping completed (DM_MAPIO_REMAPPED).
> 1 : Reserved (undefined). Previously this was the same as '= 1'.o Reserve return values of 2 and above from target end_io functions
for similar reasons.
DM_ENDIO_INCOMPLETE is introduced for a return value of 1.Test results:
I have tested by using the multipath target.
I/Os succeed when valid paths exist.
I/Os are queued in the multipath target when there are no valid paths and
queue_if_no_path is set.I/Os fail when there are no valid paths and queue_if_no_path is not set.
Signed-off-by: Kiyoshi Ueda
Signed-off-by: Jun'ichi Nomura
Signed-off-by: Alasdair G Kergon
Cc: dm-devel@redhat.com
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Change the interface of dm_suspend() so that we can pass several options
without increasing the number of parameters. The existing 'do_lockfs' integer
parameter is replaced by a flag DM_SUSPEND_LOCKFS_FLAG.There is no functional change to the code.
Test results:
I have tested 'dmsetup suspend' command with/without the '--nolockfs'
option and confirmed the do_lockfs value is correctly set.Signed-off-by: Kiyoshi Ueda
Signed-off-by: Jun'ichi Nomura
Signed-off-by: Alasdair G Kergon
Cc: dm-devel@redhat.com
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Mariusz Kozlowski
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch adds a way to create and use the video plane (YUV overlay) and
scaling video scaling features of the chip.The overlay is configured, resized and modified using a device specific
ioctl.Also included in this patch:
- If no platform data was passed, print an error and exit instead of crashing.
- Added a write_reg(_dly) macro. This improves readability when
manipulating chip registers. (no more udelay() after each write).
- Comments about some issues.Signed-off-by: Raphael Assenat
Cc: "Antonino A. Daplas"
Acked-by: James Simmons
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- Mark the default colormaps read-only, as nobody should be allowed to
modify them- Additionally mark color values as __read_mostly since they will only be
modified (very seldom) by fb_invert_cmaps()- Add named C99-initializers in fb_cmap structs and use the ARRAY_SIZE()
macroSigned-off-by: Helge Deller
Acked-by: James Simmons
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch adds support for stn displays on the s3c2410 arm SoC.
The LCD type is choosen by a new field in the s3c2410fb_mach_info structure
and its value is the value of the PNRMODE bits. This worth to be noted as
a value of 0 means that you configure a 4 bit dual scan stn display.Signed-off-by: Arnaud Patard
Cc: "Antonino A. Daplas"
Cc: Russell King
Cc: Ben Dooks
Acked-by: James Simmons
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This completes IDE except for one use which requires a new core PCI function
and will be polished up at the endSigned-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Assign defaults most likely to please a new user:
1) generate some logging output
(verbose=2)
2) avoid injecting failures likely to lock up UI
(ignore_gfp_wait=1, ignore_gfp_highmem=1)Signed-off-by: Don Mullis
Cc: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use bool-true-false throughout.
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 process filtering feature.
The process filter allows failing only permitted processes
by /proc//make-it-failPlease see the example that demostrates how to inject slab allocation
failures into module init/cleanup code
in Documentation/fault-injection/fault-injection.txtSigned-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch provides fault-injection capability for disk IO.
Boot option:
fail_make_request=,,,
-- specifies the interval of failures.
-- specifies how often it should fail in percent.
-- specifies the size of free space where disk IO can be issued
safely in bytes.-- specifies how many times failures may happen at most.
Debugfs:
/debug/fail_make_request/interval
/debug/fail_make_request/probability
/debug/fail_make_request/specifies
/debug/fail_make_request/timesExample:
fail_make_request=10,100,0,-1
echo 1 > /sys/blocks/hda/hda1/make-it-failgeneric_make_request() on /dev/hda1 fails once per 10 times.
Cc: Jens Axboe
Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch provides base functions implement to fault-injection
capabilities.- The function should_fail() is taken from failmalloc-1.0
(http://www.nongnu.org/failmalloc/)[akpm@osdl.org: cleanups, comments, add __init]
Cc:
Signed-off-by: Akinobu Mita
Signed-off-by: Don Mullis
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- wipe gcc -W warnings by int -> uint conversion
- move 2 global variables into their local placeSigned-off-by: Jiri Slaby
Cc: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use only struct instead of defining a new type .
Signed-off-by: Jiri Slaby
Cc: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- fix `gcc -W' un/signed warnings by converting some ints -> uints.
- move 3 global variables into functions, where are they used.Signed-off-by: Jiri Slaby
Cc: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This turns on the split input/output speed features and arbitary baud rate
handling for the x86-64 platform. Nothing should break if you use existing
standard speeds. If you use the new speed stuff then you may see some
drivers failing to report the speed changes properly in error cases. This
will be worked on further. For the working cases this all seems happy.
I'll post a test suite used to test the basic stuff as well.Patches for i386 will follow when I get a moment but are basically the
same. If people could patch/test-suite other architectures and submit them
that would be great.Signed-off-by: Alan Cox
Cc: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This is the grungy swap all the occurrences in the right places patch that
goes with the updates. At this point we have the same functionality as
before (except that sgttyb() returns speeds not zero) and are ready to
begin turning new stuff on providing nobody reports lots of bugsIf you are a tty driver author converting an out of tree driver the only
impact should be termios->ktermios name changes for the speed/property
setting functions from your upper layers.If you are implementing your own TCGETS function before then your driver
was broken already and its about to get a whole lot more painful for you so
please fix it 8)Also fill in c_ispeed/ospeed on init for most devices, although the current
code will do this for you anyway but I'd like eventually to lose that extra
paranoia[akpm@osdl.org: bluetooth fix]
[mp3@de.ibm.com: sclp fix]
[mp3@de.ibm.com: warning fix for tty3270]
[hugh@veritas.com: fix tty_ioctl powerpc build]
[jdike@addtoit.com: uml: fix ->set_termios declaration]
Signed-off-by: Alan Cox
Signed-off-by: Martin Peschke
Acked-by: Peter Oberparleiter
Cc: Cornelia Huck
Signed-off-by: Hugh Dickins
Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This is the core of the switch to the new framework. I've split it from the
driver patches which are mostly search/replace and would encourage people to
give this one a good hard stare.The references to BOTHER and ISHIFT are the termios values that must be
defined by a platform once it wants to turn on "new style" ioctl support. The
code patches here ensure that providing1. The termios overlays the ktermios in memory
2. The only new kernel only fields are c_ispeed/c_ospeed (or none)the existing behaviour is retained. This is true for the patches at this
point in time.Future patches will define BOTHER, ISHIFT and enable newer termios structures
for each architecture, and once they are all done some of the ifdefs also
vanish.[akpm@osdl.org: warning fix]
[akpm@osdl.org: IRDA fix]
Signed-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
