GitHub/LineageOS/android_kernel_motorola_exynos9610.git
18 years ago[PATCH] relative atime
Valerie Henson [Wed, 13 Dec 2006 08:34:34 +0000 (00:34 -0800)]
[PATCH] relative atime

Add "relatime" (relative atime) support.  Relative atime only updates the
atime if the previous atime is older than the mtime or ctime.  Like
noatime, but useful for applications like mutt that need to know when a
file has been read since it was last modified.

A corresponding patch against mount(8) is available at
http://userweb.kernel.org/~akpm/mount-relative-atime.txt

Signed-off-by: Valerie Henson <val_henson@linux.intel.com>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Karel Zak <kzak@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] touch_atime() cleanup
Andrew Morton [Wed, 13 Dec 2006 08:34:33 +0000 (00:34 -0800)]
[PATCH] touch_atime() cleanup

Simplify touch_atime() layout.

Cc: Valerie Henson <val_henson@linux.intel.com>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] Xtensa: Add ktermios and minor filename fix
Chris Zankel [Wed, 13 Dec 2006 08:34:32 +0000 (00:34 -0800)]
[PATCH] Xtensa: Add ktermios and minor filename fix

The kernel termios (ktermios) changes were somehow missed for Xtensa.  This
patch adds the ktermios structure and also includes some minor file name
fix that was missed in the syscall patch.

Signed-off-by: Chris Zankel <chris@zankel.net>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] PM: Fix SMP races in the freezer
Rafael J. Wysocki [Wed, 13 Dec 2006 08:34:30 +0000 (00:34 -0800)]
[PATCH] PM: Fix SMP races in the freezer

Currently, to tell a task that it should go to the refrigerator, we set the
PF_FREEZE flag for it and send a fake signal to it.  Unfortunately there
are two SMP-related problems with this approach.  First, a task running on
another CPU may be updating its flags while the freezer attempts to set
PF_FREEZE for it and this may leave the task's flags in an inconsistent
state.  Second, there is a potential race between freeze_process() and
refrigerator() in which freeze_process() running on one CPU is reading a
task's PF_FREEZE flag while refrigerator() running on another CPU has just
set PF_FROZEN for the same task and attempts to reset PF_FREEZE for it.  If
the refrigerator wins the race, freeze_process() will state that PF_FREEZE
hasn't been set for the task and will set it unnecessarily, so the task
will go to the refrigerator once again after it's been thawed.

To solve first of these problems we need to stop using PF_FREEZE to tell
tasks that they should go to the refrigerator.  Instead, we can introduce a
special TIF_*** flag and use it for this purpose, since it is allowed to
change the other tasks' TIF_*** flags and there are special calls for it.

To avoid the freeze_process()-refrigerator() race we can make
freeze_process() to always check the task's PF_FROZEN flag after it's read
its "freeze" flag.  We should also make sure that refrigerator() will
always reset the task's "freeze" flag after it's set PF_FROZEN for it.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Howells <dhowells@redhat.com>
Cc: Andi Kleen <ak@muc.de>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] PM: Fix freezing of stopped tasks
Rafael J. Wysocki [Wed, 13 Dec 2006 08:34:28 +0000 (00:34 -0800)]
[PATCH] PM: Fix freezing of stopped tasks

Currently, if a task is stopped (ie.  it's in the TASK_STOPPED state), it
is considered by the freezer as unfreezeable.  However, there may be a race
between the freezer and the delivery of the continuation signal to the task
resulting in the task running after we have finished freezing the other
tasks.  This, in turn, may lead to undesirable effects up to and including
data corruption.

To prevent this from happening we first need to make the freezer consider
stopped tasks as freezeable.  For this purpose we need to make freezeable()
stop returning 0 for these tasks and we need to force them to enter the
refrigerator.  However, if there's no continuation signal in the meantime,
the stopped tasks should remain stopped after all processes have been
thawed, so we need to send an additional SIGSTOP to each of them before
waking it up.

Also, a stopped task that has just been woken up should first check if
there's a freezing request for it and go to the refrigerator if that's the
case.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] SLAB: use a multiply instead of a divide in obj_to_index()
Eric Dumazet [Wed, 13 Dec 2006 08:34:27 +0000 (00:34 -0800)]
[PATCH] SLAB: use a multiply instead of a divide in obj_to_index()

When some objects are allocated by one CPU but freed by another CPU we can
consume lot of cycles doing divides in obj_to_index().

(Typical load on a dual processor machine where network interrupts are
handled by one particular CPU (allocating skbufs), and the other CPU is
running the application (consuming and freeing skbufs))

Here on one production server (dual-core AMD Opteron 285), I noticed this
divide took 1.20 % of CPU_CLK_UNHALTED events in kernel.  But Opteron are
quite modern cpus and the divide is much more expensive on oldest
architectures :

On a 200 MHz sparcv9 machine, the division takes 64 cycles instead of 1
cycle for a multiply.

Doing some math, we can use a reciprocal multiplication instead of a divide.

If we want to compute V = (A / B)  (A and B being u32 quantities)
we can instead use :

V = ((u64)A * RECIPROCAL(B)) >> 32 ;

where RECIPROCAL(B) is precalculated to ((1LL << 32) + (B - 1)) / B

Note :

I wrote pure C code for clarity. gcc output for i386 is not optimal but
acceptable :

mull   0x14(%ebx)
mov    %edx,%eax // part of the >> 32
xor     %edx,%edx // useless
mov    %eax,(%esp) // could be avoided
mov    %edx,0x4(%esp) // useless
mov    (%esp),%ebx

[akpm@osdl.org: small cleanups]
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] cpuset: rework cpuset_zone_allowed api
Paul Jackson [Wed, 13 Dec 2006 08:34:25 +0000 (00:34 -0800)]
[PATCH] cpuset: rework cpuset_zone_allowed api

Elaborate the API for calling cpuset_zone_allowed(), so that users have to
explicitly choose between the two variants:

  cpuset_zone_allowed_hardwall()
  cpuset_zone_allowed_softwall()

Until now, whether or not you got the hardwall flavor depended solely on
whether or not you or'd in the __GFP_HARDWALL gfp flag to the gfp_mask
argument.

If you didn't specify __GFP_HARDWALL, you implicitly got the softwall
version.

Unfortunately, this meant that users would end up with the softwall version
without thinking about it.  Since only the softwall version might sleep,
this led to bugs with possible sleeping in interrupt context on more than
one occassion.

The hardwall version requires that the current tasks mems_allowed allows
the node of the specified zone (or that you're in interrupt or that
__GFP_THISNODE is set or that you're on a one cpuset system.)

The softwall version, depending on the gfp_mask, might allow a node if it
was allowed in the nearest enclusing cpuset marked mem_exclusive (which
requires taking the cpuset lock 'callback_mutex' to evaluate.)

This patch removes the cpuset_zone_allowed() call, and forces the caller to
explicitly choose between the hardwall and the softwall case.

If the caller wants the gfp_mask to determine this choice, they should (1)
be sure they can sleep or that __GFP_HARDWALL is set, and (2) invoke the
cpuset_zone_allowed_softwall() routine.

This adds another 100 or 200 bytes to the kernel text space, due to the few
lines of nearly duplicate code at the top of both cpuset_zone_allowed_*
routines.  It should save a few instructions executed for the calls that
turned into calls of cpuset_zone_allowed_hardwall, thanks to not having to
set (before the call) then check (within the call) the __GFP_HARDWALL flag.

For the most critical call, from get_page_from_freelist(), the same
instructions are executed as before -- the old cpuset_zone_allowed()
routine it used to call is the same code as the
cpuset_zone_allowed_softwall() routine that it calls now.

Not a perfect win, but seems worth it, to reduce this chance of hitting a
sleeping with irq off complaint again.

Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] More slab.h cleanups
Christoph Lameter [Wed, 13 Dec 2006 08:34:24 +0000 (00:34 -0800)]
[PATCH] More slab.h cleanups

More cleanups for slab.h

1. Remove tabs from weird locations as suggested by Pekka

2. Drop the check for NUMA and SLAB_DEBUG from the fallback section
   as suggested by Pekka.

3. Uses static inline for the fallback defs as also suggested by Pekka.

4. Make kmem_ptr_valid take a const * argument.

5. Separate the NUMA fallback definitions from the kmalloc_track fallback
   definitions.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] Cleanup slab headers / API to allow easy addition of new slab allocators
Christoph Lameter [Wed, 13 Dec 2006 08:34:23 +0000 (00:34 -0800)]
[PATCH] Cleanup slab headers / API to allow easy addition of new slab allocators

This is a response to an earlier discussion on linux-mm about splitting
slab.h components per allocator.  Patch is against 2.6.19-git11.  See
http://marc.theaimsgroup.com/?l=linux-mm&m=116469577431008&w=2

This patch cleans up the slab header definitions.  We define the common
functions of slob and slab in slab.h and put the extra definitions needed
for slab's kmalloc implementations in <linux/slab_def.h>.  In order to get
a greater set of common functions we add several empty functions to slob.c
and also rename slob's kmalloc to __kmalloc.

Slob does not need any special definitions since we introduce a fallback
case.  If there is no need for a slab implementation to provide its own
kmalloc mess^H^H^Hacros then we simply fall back to __kmalloc functions.
That is sufficient for SLOB.

Sort the function in slab.h according to their functionality.  First the
functions operating on struct kmem_cache * then the kmalloc related
functions followed by special debug and fallback definitions.

Also redo a lot of comments.

Signed-off-by: Christoph Lameter <clameter@sgi.com>?
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] cciss: remove calls to pci_disable_device
Mike Miller [Wed, 13 Dec 2006 08:34:22 +0000 (00:34 -0800)]
[PATCH] cciss: remove calls to pci_disable_device

Remove calls to pci_disable_device except in fail_all_cmds.  The
pci_disable_device function does something nasty to Smart Array controllers
that pci_enable_device does not undo.  So if the driver is unloaded it
cannot be reloaded.

Also, customers can disable any pci device via the ROM Based Setup Utility
(RBSU).  If the customer has disabled the controller we should not try to
blindly enable the card from the driver.  Please consider this for
inclusion.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] cciss: map out more memory for config table
Mike Miller [Wed, 13 Dec 2006 08:34:21 +0000 (00:34 -0800)]
[PATCH] cciss: map out more memory for config table

Map out more memory for our config table.  It's required to reach offset
0x214 to disable DMA on the P600.  I'm not sure how I lost this hunk.
Please consider this for inclusion.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] sx: fix non-PCI build
Jiri Slaby [Wed, 13 Dec 2006 08:34:20 +0000 (00:34 -0800)]
[PATCH] sx: fix non-PCI build

When CONFIG_PCI is not defined (i.e.  PCI bus is disabled), the sx driver
fails to link, since some pci functions are not available.  Fix this
behaviour to be able to compile this driver on machines with no PCI bus
(but with ISA bus support).

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] mxser_new: fix non-PCI build
Jiri Slaby [Wed, 13 Dec 2006 08:34:19 +0000 (00:34 -0800)]
[PATCH] mxser_new: fix non-PCI build

When CONFIG_PCI is not defined (i.e.  PCI bus is disabled), the mxser_new
driver fails to link, since some pci functions are not available.  Fix this
behaviour to be able to compile this driver on machines with no PCI bus
(but with ISA bus support).

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] isicom: fix build with PCI disabled
Randy Dunlap [Wed, 13 Dec 2006 08:34:18 +0000 (00:34 -0800)]
[PATCH] isicom: fix build with PCI disabled

With CONFIG_PCI=n:
drivers/char/isicom.c: In function 'isicom_probe':
drivers/char/isicom.c:1793: warning: implicit declaration of function
'pci_request_region'
drivers/char/isicom.c:1827: warning: implicit declaration of function
'pci_release_region'

Let's CONFIG_ISI depend on CONFIG_PCI.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] w1: Fix for kconfig entry typo
Evgeniy Polyakov [Wed, 13 Dec 2006 08:34:16 +0000 (00:34 -0800)]
[PATCH] w1: Fix for kconfig entry typo

Based on patch from Alexander Rigbo <alexander.rigbo@acgnystrom.se>

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] KVM: Fix vmx hardware_enable() on macbooks
Avi Kivity [Wed, 13 Dec 2006 08:34:16 +0000 (00:34 -0800)]
[PATCH] KVM: Fix vmx hardware_enable() on macbooks

It seems macbooks set bit 2 but not bit 0, which is an "enabled but vmxon will
fault" setting.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Tested-by: Alex Larsson (sometimes testing helps)
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] KVM: Don't touch the virtual apic vt registers on 32-bit
Michael Riepe [Wed, 13 Dec 2006 08:34:15 +0000 (00:34 -0800)]
[PATCH] KVM: Don't touch the virtual apic vt registers on 32-bit

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] KVM: Disallow the kvm-amd module on intel hardware, and vice versa
Avi Kivity [Wed, 13 Dec 2006 08:34:14 +0000 (00:34 -0800)]
[PATCH] KVM: Disallow the kvm-amd module on intel hardware, and vice versa

They're not on speaking terms.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] md: Don't assume that READ==0 and WRITE==1 - use the names explicitly
NeilBrown [Wed, 13 Dec 2006 08:34:13 +0000 (00:34 -0800)]
[PATCH] md: Don't assume that READ==0 and WRITE==1 - use the names explicitly

Thanks Jens for alerting me to this.

Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: <raziebe@gmail.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] Fix crossbuilding checkstack
Jeff Dike [Wed, 13 Dec 2006 08:34:12 +0000 (00:34 -0800)]
[PATCH] Fix crossbuilding checkstack

The previous checkstack fix for UML, which needs to use the host's tools,
was wrong in the crossbuilding case.  It would use the build host's, rather
than the target's, toolchain.

This patch removes the old fix and adds an explicit special case for UML,
leaving everyone else alone.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] slab: fix sleeping in atomic bug
Christoph Lameter [Wed, 13 Dec 2006 08:34:11 +0000 (00:34 -0800)]
[PATCH] slab: fix sleeping in atomic bug

Fallback_alloc() does not do the check for GFP_WAIT as done in
cache_grow().  Thus interrupts are disabled when we call kmem_getpages()
which results in the failure.

Duplicate the handling of GFP_WAIT in cache_grow().

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] reorder struct pipe_buf_operations
Eric Dumazet [Wed, 13 Dec 2006 08:34:10 +0000 (00:34 -0800)]
[PATCH] reorder struct pipe_buf_operations

Fields of struct pipe_buf_operations have not a precise layout (ie not
optimized to fit cache lines nor reduce cache line ping pongs)

The bufs[] array is *large* and is placed near the beginning of the
structure, so all following fields have a large offset.  This is
unfortunate because many archs have smaller instructions when using small
offsets relative to a base register.  On x86 for example, 7 bits offsets
have smaller instruction lengths.

Moving bufs[] at the end of pipe_buf_operations permits all fields to have
small offsets, and reduce text size, and icache pressure.

# size vmlinux.pre vmlinux
    text    data     bss     dec     hex filename
3268989  664356  492196 4425541  438745 vmlinux.pre
3268765  664356  492196 4425317  438665 vmlinux

So this patch reduces text size by 224 bytes on my x86_64 machine. Similar
results on ia32.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] kconfig: set gconf's save-widget's sensitivity according to .config's changed...
Karsten Wiese [Wed, 13 Dec 2006 08:34:09 +0000 (00:34 -0800)]
[PATCH] kconfig: set gconf's save-widget's sensitivity according to .config's changed state

Clean up a little.

Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] kconfig: add "void conf_set_changed_callback(void (*fn)(void))", use it in...
Karsten Wiese [Wed, 13 Dec 2006 08:34:08 +0000 (00:34 -0800)]
[PATCH] kconfig: add "void conf_set_changed_callback(void (*fn)(void))", use it in qconf.cc

Added function sets "void (*conf_changed_callback)(void)".  Call it, if
.config's changed state changes.  Use above in qconf.cc to set gui's
save-widget's sensitvity.

Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] kconfig: make sym_change_count static, let it be altered by 2 functions only
Karsten Wiese [Wed, 13 Dec 2006 08:34:07 +0000 (00:34 -0800)]
[PATCH] kconfig: make sym_change_count static, let it be altered by 2 functions only

Those two functions are
void sym_set_change_count(int count)
and
void sym_add_change_count(int count)

All write accesses to sym_change_count are replaced by calls to above
functions.

Variable and changer-functions are moved to confdata.c.  IMO thats ok, as
sym_change_count is an attribute of the .config's change state.

Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] kconfig: new function "bool conf_get_changed(void)"
Karsten Wiese [Wed, 13 Dec 2006 08:34:06 +0000 (00:34 -0800)]
[PATCH] kconfig: new function "bool conf_get_changed(void)"

Run "make xconfig" on a freshly untarred kernel-tree.  Look at the floppy disk
icon of the qt application, that has just started: Its in a normal, active
state.

Mouse click on it: .config is being saved.

This patch series changes things so taht
after the mouse click on the floppy disk icon, the icon is greyed out.
If you mouse click on it now, nothing happens.

If you change some CONFIG_*, the floppy disk icon returns to "active state",
that is, if you mouse click it now, .config is written.

This patch:

Returns sym_change_count to reflect the .config's change state.
All read only accesses of
sym_change_count
are replaced by calls to
conf_get_changed()
.
mconfig.c is manipulated to ask for saving only when
conf_get_changed() returned true.

Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] vt: fix comments to not refer to kill_proc
Eric W. Biederman [Wed, 13 Dec 2006 08:34:05 +0000 (00:34 -0800)]
[PATCH] vt: fix comments to not refer to kill_proc

The code has been fixed to use kill_pid instead of kill_proc fix the
comments as well.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] Revert "[PATCH] identifier to nsproxy"
Eric W. Biederman [Wed, 13 Dec 2006 08:34:04 +0000 (00:34 -0800)]
[PATCH] Revert "[PATCH] identifier to nsproxy"

This reverts commit 373beb35cd6b625e0ba4ad98baace12310a26aa8.

No one is using this identifier yet.  The purpose of this identifier is to
export nsproxy to user space which is wrong.  nsproxy is an internal
implementation optimization, which should keep our fork times from getting
slower as we increase the number of global namespaces you don't have to
share.

Adding a global identifier like this is inappropriate because it makes
namespaces inherently non-recursive, greatly limiting what we can do with
them in the future.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] constify pipe_buf_operations
Eric Dumazet [Wed, 13 Dec 2006 08:34:04 +0000 (00:34 -0800)]
[PATCH] constify pipe_buf_operations

- pipe/splice should use const pipe_buf_operations and file_operations

- struct pipe_inode_info has an unused field "start" : get rid of it.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] KVM: Add MAINTAINERS entry
Avi Kivity [Wed, 13 Dec 2006 08:34:03 +0000 (00:34 -0800)]
[PATCH] KVM: Add MAINTAINERS entry

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] KVM: MMU: Ignore pcd, pwt, and pat bits on ptes
Avi Kivity [Wed, 13 Dec 2006 08:34:02 +0000 (00:34 -0800)]
[PATCH] KVM: MMU: Ignore pcd, pwt, and pat bits on ptes

The pcd, pwt, and pat bits on page table entries affect the cpu cache.  Since
the cache is a host resource, the guest should not be able to control it.
Moreover, the meaning of these bits changes depending on whether pat is
enabled or not.

So, force these bits to zero on shadow page table entries at all times.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] KVM: Remove extranous put_cpu() from vcpu_put()
Avi Kivity [Wed, 13 Dec 2006 08:34:01 +0000 (00:34 -0800)]
[PATCH] KVM: Remove extranous put_cpu() from vcpu_put()

The arch splitting patchset left an extra put_cpu() in core code, where it can
cause trouble for CONFIG_PREEMPT kernels.

Reported-by: Huihong Luo <huisinro@yahoo.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] KVM: Move find_vmx_entry() to vmx.c
Avi Kivity [Wed, 13 Dec 2006 08:34:01 +0000 (00:34 -0800)]
[PATCH] KVM: Move find_vmx_entry() to vmx.c

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] KVM: Make the GET_SREGS and SET_SREGS ioctls symmetric
Uri Lublin [Wed, 13 Dec 2006 08:34:00 +0000 (00:34 -0800)]
[PATCH] KVM: Make the GET_SREGS and SET_SREGS ioctls symmetric

This makes the SET_SREGS ioctl behave symmetrically to the GET_SREGS ioctl wrt
the segment access rights flag.

Signed-off-by: Uri Lublin <uril@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] Fix section mismatch in parainstructions
Randy Dunlap [Wed, 13 Dec 2006 08:33:57 +0000 (00:33 -0800)]
[PATCH] Fix section mismatch in parainstructions

Section .parainstructions should not warn about section mismatches.

WARNING: drivers/net/hamradio/scc.o - Section mismatch: reference to .exit.text: from .parainstructions after '' (at offset 0x0)
WARNING: drivers/net/hamradio/scc.o - Section mismatch: reference to .exit.text: from .parainstructions after '' (at offset 0x8)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Andi Kleen <ak@suse.de>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] i2o_exec_exit and i2o_driver_exit should not be __exit.
Ralf Baechle [Wed, 13 Dec 2006 08:33:53 +0000 (00:33 -0800)]
[PATCH] i2o_exec_exit and i2o_driver_exit should not be __exit.

i2o_exec_exit and i2o_driver_exit were marked as __exit which is a bug
because both are invoked from __init and __exit functions.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] isdn/gigaset: fix possible missing wakeup
Tilman Schmidt [Wed, 13 Dec 2006 08:33:52 +0000 (00:33 -0800)]
[PATCH] isdn/gigaset: fix possible missing wakeup

Eliminate some possibilities for user processes writing to the Gigaset
character device to be left sleeping indefinitely, by adding wakeup calls
to error paths and properly disposing of pending write requests when the
device is disconnected.

It also removes unnecessary NULL checks before usb_free_urb() and
usb_kill_urb() calls.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] uml: fix net_kern workqueue abuse
Peter Zijlstra [Wed, 13 Dec 2006 08:33:50 +0000 (00:33 -0800)]
[PATCH] uml: fix net_kern workqueue abuse

Fix up the work on stack and exit scope trouble by placing the work_struct
in the uml_net_private data.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] another build fix, header rearrangements (OSK)
David Brownell [Wed, 13 Dec 2006 08:33:49 +0000 (00:33 -0800)]
[PATCH] another build fix, header rearrangements (OSK)

Some of the header file rearrangements broke the build for board-osk.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: <tony@atomide.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] fix more workqueue build breakage (tps65010)
David Brownell [Wed, 13 Dec 2006 08:33:46 +0000 (00:33 -0800)]
[PATCH] fix more workqueue build breakage (tps65010)

More fixes to build breakage from the work_struct changes ...  this updates
the tps65010 driver.  Plus, fix some dependencies related to the way it's
used on the OMAP OSK: force static linking there, since the resulting
kernel can't link.

NOTE that until the i2c core gets fixed to work without SMBUS_QUICK,
kernels needing this driver must still use "tps65010.force=0,0x48" on the
command line.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] KVM: Replace __x86_64__ with CONFIG_X86_64
Avi Kivity [Wed, 13 Dec 2006 08:33:45 +0000 (00:33 -0800)]
[PATCH] KVM: Replace __x86_64__ with CONFIG_X86_64

As per akpm's request.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] KVM: Clean up AMD SVM debug registers load and unload
Avi Kivity [Wed, 13 Dec 2006 08:33:45 +0000 (00:33 -0800)]
[PATCH] KVM: Clean up AMD SVM debug registers load and unload

By letting gcc choose the temporary register for us, we lose arch dependency
and some ugliness.  Conceivably gcc will also generate marginally better code.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] KVM: Put KVM in a new Virtualization menu
Avi Kivity [Wed, 13 Dec 2006 08:33:44 +0000 (00:33 -0800)]
[PATCH] KVM: Put KVM in a new Virtualization menu

Instead of in the main drivers menu.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] KVM: Add missing include
Anthony Liguori [Wed, 13 Dec 2006 08:33:43 +0000 (00:33 -0800)]
[PATCH] KVM: Add missing include

load_TR_desc() lives in asm/desc.h, so #include that file.

Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] tty: export get_current_tty
Heiko Carstens [Wed, 13 Dec 2006 08:33:41 +0000 (00:33 -0800)]
[PATCH] tty: export get_current_tty

24ec839c431eb79bb8f6abc00c4e1eb3b8c4d517 causes this:

WARNING: "get_current_tty" [drivers/s390/char/fs3270.ko] undefined!

Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] arch/i386/kernel/smpboot.c: remove unneeded ifdef
Andrew Morton [Wed, 13 Dec 2006 08:33:40 +0000 (00:33 -0800)]
[PATCH] arch/i386/kernel/smpboot.c: remove unneeded ifdef

#ifdef CONFIG_SMP in a file which isn't compiled in non-SMP kernels.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
Linus Torvalds [Wed, 13 Dec 2006 02:53:48 +0000 (18:53 -0800)]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] kprobe clears qp bits for special instructions
  [IA64] enable trap code on slot 1
  [IA64] Take defensive stance on ia64_pal_get_brand_info()
  [IA64] fix possible XPC deadlock when disconnecting
  [IA64] - Reduce overhead of FP exception logging messages
  [IA64] fix arch/ia64/mm/contig.c:235: warning: unused variable `nid'
  [IA64] s/termios/ktermios/ in simserial.c
  [IA64] kexec/kdump: tidy up declaration of relocate_new_kernel_t
  [IA64] Kexec/Kdump: honour non-zero crashkernel offset.
  [IA64] CONFIG_KEXEC/CONFIG_CRASH_DUMP permutations
  [IA64] Do not call SN_SAL_SET_CPU_NUMBER twice on cpu 0

18 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart
Linus Torvalds [Wed, 13 Dec 2006 02:53:04 +0000 (18:53 -0800)]
Merge /pub/scm/linux/kernel/git/davej/agpgart

* master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart:
  [AGPGART] VIA and SiS AGP chipsets are x86-only
  [AGPGART] agp-amd64: section mismatches with HOTPLUG=n
  [AGPGART] Fix up misprogrammed bridges with incorrect AGPv2 rates.

18 years agoMerge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband
Linus Torvalds [Wed, 13 Dec 2006 02:52:31 +0000 (18:52 -0800)]
Merge branch 'for-linus' of /linux/kernel/git/roland/infiniband

* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband:
  IPoIB: Make sure struct ipoib_neigh.queue is always initialized
  IB/iser: Use the new verbs DMA mapping functions
  IB/srp: Use new verbs IB DMA mapping functions
  IPoIB: Use the new verbs DMA mapping functions
  IB/core: Use the new verbs DMA mapping functions
  IB/ipath: Implement new verbs DMA mapping functions
  IB: Add DMA mapping functions to allow device drivers to interpose
  RDMA/cma: Export rdma cm interface to userspace
  RDMA/cma: Add support for RDMA_PS_UDP
  RDMA/cma: Allow early transition to RTS to handle lost CM messages
  RDMA/cma: Report connect info with connect events
  RDMA/cma: Remove unneeded qp_type parameter from rdma_cm
  IB/ipath: Fix IRQ for PCI Express HCAs
  RDMA/amso1100: Fix memory leak in c2_qp_modify()
  IB/iser: Remove unused "write-only" variables
  IB/ipath: Remove unused "write-only" variables
  IB/fmr: ib_flush_fmr_pool() may wait too long

18 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
Linus Torvalds [Wed, 13 Dec 2006 02:51:51 +0000 (18:51 -0800)]
Merge git://git./linux/kernel/git/bunk/trivial

* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial:
  Fix inotify maintainers entry
  Fix typo in new debug options.
  Jon needs a new shift key.
  fs: Convert kmalloc() + memset() to kzalloc() in fs/.
  configfs.h: Remove dead macro definitions.
  kconfig: Standardize "depends" -> "depends on" in Kconfig files
  e100: replace kmalloc with kcalloc
  um: replace kmalloc+memset with kzalloc
  fix typo in net/ipv4/ip_fragment.c
  include/linux/compiler.h: reject gcc 3 < gcc 3.2
  Kconfig: fix spelling error in config KALLSYMS help text
  Remove duplicate "have to" in comment
  Fix small typo in drivers/serial/icom.c
  Use consistent casing in help message
  EXT{2,3,4}_FS: remove outdated part of the help text

18 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
Linus Torvalds [Wed, 13 Dec 2006 02:51:36 +0000 (18:51 -0800)]
Merge /linux/kernel/git/wim/linux-2.6-watchdog

* master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  [WATCHDOG] pcwd_usb.c generic HID include file
  [WATCHDOG] watchdog miscdevice patch
  [WATCHDOG] rm9k_wdt: fix interrupt handler arguments
  [WATCHDOG] rm9k_wdt: fix compilation

18 years agoMerge ../linus
Dave Jones [Tue, 12 Dec 2006 23:13:32 +0000 (18:13 -0500)]
Merge ../linus

18 years ago[AGPGART] VIA and SiS AGP chipsets are x86-only
Matthew Wilcox [Mon, 4 Dec 2006 10:43:14 +0000 (03:43 -0700)]
[AGPGART] VIA and SiS AGP chipsets are x86-only

There's no point in troubling the Alpha, IA-64, PowerPC and PARISC
people with SiS and VIA options.  Andrew thinks it helps find bugs,
but there's no evidence of that.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Dave Jones <davej@redhat.com>
18 years ago[AGPGART] agp-amd64: section mismatches with HOTPLUG=n
Randy Dunlap [Mon, 20 Nov 2006 02:52:28 +0000 (18:52 -0800)]
[AGPGART] agp-amd64: section mismatches with HOTPLUG=n

When CONFIG_HOTPLUG=n, agp_amd64_resume() calls nforce3_agp_init(),
which is __devinit == __init, so has been discarded and is not
usable for resume.

WARNING: drivers/char/agp/amd64-agp.o - Section mismatch: reference to .init.text: from .text between 'agp_amd64_resume' (at offset 0x249) and 'amd64_tlbflush'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Dave Jones <davej@redhat.com>
18 years agoMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2...
Wim Van Sebroeck [Tue, 12 Dec 2006 22:48:41 +0000 (23:48 +0100)]
Merge branch 'master' of /linux/kernel/git/wim/linux-2.6-watchdog

18 years agoIPoIB: Make sure struct ipoib_neigh.queue is always initialized
Roland Dreier [Tue, 12 Dec 2006 22:48:18 +0000 (14:48 -0800)]
IPoIB: Make sure struct ipoib_neigh.queue is always initialized

Move the initialization of ipoib_neigh's skb_queue into
ipoib_neigh_alloc(), since commit 2745b5b7 ("IPoIB: Fix skb leak when
freeing neighbour") will make iterate over the skb_queue to free any
packets left over when freeing the ipoib_neigh structure.

This fixes a crash when freeing ipoib_neigh structures allocated in
ipoib_mcast_send(), which otherwise don't have their skb_queue
initialized.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years ago[WATCHDOG] pcwd_usb.c generic HID include file
Wim Van Sebroeck [Tue, 12 Dec 2006 22:46:47 +0000 (23:46 +0100)]
[WATCHDOG] pcwd_usb.c generic HID include file

Now that the generic HID layer created include/linux/hid.h
we can use the HID_REQ_SET_REPORT and HID_DT_REPORT defines
directly from that include file.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
18 years agoMerge ../linus
Dave Jones [Tue, 12 Dec 2006 22:41:41 +0000 (17:41 -0500)]
Merge ../linus

Conflicts:

drivers/cpufreq/cpufreq.c

18 years ago[CPUFREQ] Longhaul - Add support for CN400
Rafa³ Bilski [Thu, 30 Nov 2006 02:47:41 +0000 (03:47 +0100)]
[CPUFREQ] Longhaul - Add support for CN400

Support for CN400 northbridge when ACPI C3 isn't available.
Tested on Epia SP13000. Thanks to Robert for testing it.

Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl>
Signed-off-by: Dave Jones <davej@redhat.com>
18 years ago[CPUFREQ] Longhaul - fix 200MHz FSB
Rafa³ Bilski [Thu, 30 Nov 2006 02:36:44 +0000 (03:36 +0100)]
[CPUFREQ] Longhaul - fix 200MHz FSB

On board of Epia SP13000 is 10x133Mhz VIA Nehemiah. It is reported
as 10x200MHz. This patch is fixing this issue.

Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl>
Signed-off-by: Dave Jones <davej@redhat.com>
18 years agoIB/iser: Use the new verbs DMA mapping functions
Ralph Campbell [Tue, 12 Dec 2006 22:31:00 +0000 (14:31 -0800)]
IB/iser: Use the new verbs DMA mapping functions

Convert iSER to use the new verbs DMA mapping functions for kernel
verbs consumers.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/srp: Use new verbs IB DMA mapping functions
Ralph Campbell [Tue, 12 Dec 2006 22:30:55 +0000 (14:30 -0800)]
IB/srp: Use new verbs IB DMA mapping functions

Convert SRP to use the new verbs DMA mapping functions for kernel
verbs consumers.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIPoIB: Use the new verbs DMA mapping functions
Ralph Campbell [Tue, 12 Dec 2006 22:30:48 +0000 (14:30 -0800)]
IPoIB: Use the new verbs DMA mapping functions

Convert IPoIB to use the new DMA mapping functions
for kernel verbs consumers.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years ago[CPUFREQ] p4-clockmod: fix support for Core
Dominik Brodowski [Tue, 5 Dec 2006 01:39:16 +0000 (20:39 -0500)]
[CPUFREQ] p4-clockmod: fix support for Core

Support for Core CPUs was broken in two ways in speedstep-lib: for x86_64,
we missed a MSR definition; for both x86_64 and i386, the FSB calculation
was wrong by four (it's a quad-pumped bus). Also increase the accuracy
of the calculation.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Dave Jones <davej@redhat.com>
18 years agoIB/core: Use the new verbs DMA mapping functions
Ralph Campbell [Tue, 12 Dec 2006 22:28:30 +0000 (14:28 -0800)]
IB/core: Use the new verbs DMA mapping functions

Convert code in core/ to use the new DMA mapping functions for kernel
verbs consumers.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/ipath: Implement new verbs DMA mapping functions
Ralph Campbell [Tue, 12 Dec 2006 22:28:28 +0000 (14:28 -0800)]
IB/ipath: Implement new verbs DMA mapping functions

This patch implements the interposing DMA mapping functions to allow
support for IOMMUs and remove the dependence on phys_to_virt() and
bus_to_virt().

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB: Add DMA mapping functions to allow device drivers to interpose
Ralph Campbell [Tue, 12 Dec 2006 22:27:41 +0000 (14:27 -0800)]
IB: Add DMA mapping functions to allow device drivers to interpose

The QLogic InfiniPath HCAs use programmed I/O instead of HW DMA.
This patch allows a verbs device driver to interpose on DMA mapping
function calls in order to avoid relying on bus_to_virt() and
phys_to_virt() to undo the mappings created by dma_map_single(),
dma_map_sg(), etc.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years ago[CPUFREQ] Fix git URL.
Dave Jones [Tue, 12 Dec 2006 22:26:35 +0000 (17:26 -0500)]
[CPUFREQ] Fix git URL.

Signed-off-by: Dave Jones <davej@redhat.com>
18 years ago[CPUFREQ] Fix the bug in duplicate freq elimination code in acpi-cpufreq
Venkatesh Pallipadi [Tue, 14 Nov 2006 01:47:44 +0000 (17:47 -0800)]
[CPUFREQ] Fix the bug in duplicate freq elimination code in acpi-cpufreq

Fix the bug in duplicate states elimination in acpi-cpufreq.

Bug: Due to duplicate state elimiation in the loop earlier, the number
of valid_states can be less than perf->state_count, in which case
freq_table was ending up with some garbage/uninitialized entries
in the table.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
From:  Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
18 years ago[CPUFREQ] speedstep-centrino should ignore upper performance control bits
Gary Hade [Fri, 10 Nov 2006 19:20:47 +0000 (11:20 -0800)]
[CPUFREQ] speedstep-centrino should ignore upper performance control bits

On some systems there could be bits set in the upper half of
the control value provided by the _PSS object.  These bits are
only relevant for cpufreq drivers that use IO ports which are not
currently supported by the speedstep-centrino driver.  The current
MSR oriented code assumes that upper bits are not set and thus
fails to work correctly when they are.  e.g. the control and status
value equality check failed on the IBM x3650 even though the ACPI
spec allows inequality.

Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Signed-off-by: Dave Jones <davej@redhat.com>
18 years ago[CPUFREQ] Optimize gx-suspmod revision ID fetching
Jean Delvare [Thu, 9 Nov 2006 17:29:35 +0000 (18:29 +0100)]
[CPUFREQ] Optimize gx-suspmod revision ID fetching

We don't need a temporary variable to get the PCI revision ID.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Dave Jones <davej@redhat.com>
18 years ago[IA64] kprobe clears qp bits for special instructions
bibo,mao [Tue, 12 Dec 2006 20:04:42 +0000 (12:04 -0800)]
[IA64] kprobe clears qp bits for special instructions

On IA64 there exists some special instructions which
always need to be executed regradless of qp bits, such
as com.crel.unc, tbit.trel.unc etc.
This patch clears qp bits when inserting kprobe trap code
and disables probepoint on slot 1 for these special
instructions.

Signed-off-by: bibo,mao <bibo.mao@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[IA64] enable trap code on slot 1
Tony Luck [Tue, 14 Nov 2006 17:33:38 +0000 (09:33 -0800)]
[IA64] enable trap code on slot 1

Because slot 1 of one instr bundle crosses border of two consecutive
8-bytes, kprobe on slot 1 is disabled. This patch enables kprobe on
slot1, it only replaces higher 8-bytes of the instruction bundle and
changes the exception code to ignore the low 12 bits of the break
number (which is across the border in the lower 8-bytes of the bundle).

For those instructions which must execute regardless qp bits,
kprobe on slot 1 is still disabled.

Signed-off-by: bibo,mao <bibo.mao@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[IA64] Take defensive stance on ia64_pal_get_brand_info()
Tony Luck [Tue, 12 Dec 2006 19:56:36 +0000 (11:56 -0800)]
[IA64] Take defensive stance on ia64_pal_get_brand_info()

Stephane thought he saw a problem here (but was just confused
by the return value from ia64_pal_get_brand_info()).  But we
should be more defensive here in case an prototype PAL for
a future processor doesn't implement this PAL call.

Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years agoRDMA/cma: Export rdma cm interface to userspace
Sean Hefty [Fri, 1 Dec 2006 00:53:41 +0000 (16:53 -0800)]
RDMA/cma: Export rdma cm interface to userspace

Export the rdma cm interfaces to userspace via a misc device.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoRDMA/cma: Add support for RDMA_PS_UDP
Sean Hefty [Fri, 1 Dec 2006 00:44:16 +0000 (16:44 -0800)]
RDMA/cma: Add support for RDMA_PS_UDP

Allow the use of UD QPs through the rdma_cm, in order to provide
address translation services for resolving IB addresses for datagram
messages using SIDR.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoRDMA/cma: Allow early transition to RTS to handle lost CM messages
Sean Hefty [Fri, 1 Dec 2006 00:37:15 +0000 (16:37 -0800)]
RDMA/cma: Allow early transition to RTS to handle lost CM messages

During connection establishment, the passive side of a connection can
receive messages from the active side before the connection event has
been delivered to the user.  Allow the passive side to send messages
in response to received data before the event is delivered.  To handle
the case where the connection messages are lost, a new rdma_notify()
function is added that users may invoke to force a connection into the
established state.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoRDMA/cma: Report connect info with connect events
Sean Hefty [Fri, 1 Dec 2006 00:33:14 +0000 (16:33 -0800)]
RDMA/cma: Report connect info with connect events

Connection information was never given to the recipient of a
connection request or reply message.  Only the event was delivered.
Report the connection data with the event to allows user to
reject the connection based on the requested parameters, or adjust
their resources to match the request.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoRDMA/cma: Remove unneeded qp_type parameter from rdma_cm
Sean Hefty [Fri, 1 Dec 2006 00:30:47 +0000 (16:30 -0800)]
RDMA/cma: Remove unneeded qp_type parameter from rdma_cm

The qp_type parameter into the rdma_cm is unneeded, and can be
misleading.  The QP type should be determined from the port space.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/ipath: Fix IRQ for PCI Express HCAs
Roland Dreier [Tue, 12 Dec 2006 19:50:20 +0000 (11:50 -0800)]
IB/ipath: Fix IRQ for PCI Express HCAs

Commit 51f65ebc ("IB/ipath - program intconfig register using new HT
irq hook"), which fixed interrupts for HyperTransport HCAs, broke PCI
Express HCAs, because for those HCAs, the driver uses the value of
pdev->irq before pci_enable_msi() and ends up getting a totally bogus
IRQ number.  Fix this by using the value of pdev->irq after
pci_enable_msi().

Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoRDMA/amso1100: Fix memory leak in c2_qp_modify()
Krishna Kumar [Mon, 4 Dec 2006 03:44:57 +0000 (09:14 +0530)]
RDMA/amso1100: Fix memory leak in c2_qp_modify()

vq_req is leaked in error cases.

Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/iser: Remove unused "write-only" variables
Roland Dreier [Tue, 12 Dec 2006 19:50:20 +0000 (11:50 -0800)]
IB/iser: Remove unused "write-only" variables

Remove variables that are set but then never looked at in the iSER
initiator.  These cleanups came from David Binderman's list of "set
but never used" warnings from icc.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/ipath: Remove unused "write-only" variables
Roland Dreier [Tue, 12 Dec 2006 19:50:20 +0000 (11:50 -0800)]
IB/ipath: Remove unused "write-only" variables

Remove variables that are set but then never looked at in the ipath
driver.  These cleanups came from David Binderman's list of "set but
never used" warnings from icc.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/fmr: ib_flush_fmr_pool() may wait too long
Roland Dreier [Tue, 12 Dec 2006 19:50:19 +0000 (11:50 -0800)]
IB/fmr: ib_flush_fmr_pool() may wait too long

ib_flush_fmr_pool() stashes away the request generation number
properly, but then goes ahead and rereads it every time it tests
whether the flush generation number has caught up.  This means that
there is a theoretical possibility of livelock, if the request
generation number keeps getting bumped and the flush generation number
never catches up.  The fix is simple: use the request generation
number read at the beginning of the function.

Also, atomic_inc() followed by atomic_read() can be replaced with
atomic_int_return().  There's no real requirement for atomicity here
but we might as well shrink the code.

This bug was discovered using David Binderman's list of "set but never
used" warnings from icc.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years ago[IA64] fix possible XPC deadlock when disconnecting
Dean Nelson [Wed, 22 Nov 2006 14:25:00 +0000 (08:25 -0600)]
[IA64] fix possible XPC deadlock when disconnecting

This patch eliminates a potential deadlock that is possible when XPC
disconnects a channel to a partition that has gone down. This deadlock will
occur if at least one of the kthreads created by XPC for the purpose of making
callouts to the channel's registerer is detained in the registerer and will
not be returning back to XPC until some registerer request occurs on the now
downed partition. The potential for a deadlock is removed by ensuring that
there always is a kthread available to make the channel disconnecting callout
to the registerer.

Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[IA64] - Reduce overhead of FP exception logging messages
Jack Steiner [Wed, 22 Nov 2006 15:55:08 +0000 (09:55 -0600)]
[IA64] - Reduce overhead of FP exception logging messages

Improve the scalability of the fpswa code that rate-limits
logging of messages.

There are 2 distinctly different problems in this code.

1) If prctl is used to disable logging, last_time is never
   updated. The result is that fpu_swa_count is zeroed out on
   EVERY fp fault. This causes a very very hot cache line.
   The fix reduces the wallclock time of a 1024p FP exception test
   from 28734 sec to 19 sec!!!

2) On VERY large systems, excessive messages are logged because
   multiple cpus can each reset or increment fpu_swa_count at
   about the same time. The result is that hundreds of messages
   are logged each second. The fixes reduces the logging rate
   to ~1 per second.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[IA64] fix arch/ia64/mm/contig.c:235: warning: unused variable `nid'
Tony Luck [Tue, 12 Dec 2006 19:18:55 +0000 (11:18 -0800)]
[IA64] fix arch/ia64/mm/contig.c:235: warning: unused variable `nid'

This warning only shows up with CONFIG_VIRTUAL_MEM_MAP=y and
CONFIG_FLATMEM=y.

There is only one caller left for register_active_ranges() from the
contig.c code ... so it doesn't need to pick up the node number, the
node number is always zero.

Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years agoFix inotify maintainers entry
Cal Peake [Tue, 12 Dec 2006 19:18:16 +0000 (20:18 +0100)]
Fix inotify maintainers entry

Update the inotify entry in MAINTAINERS to be consistent with the rest of
the file.

Signed-off-by: Cal Peake <cp@absolutedigital.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
18 years agoFix typo in new debug options.
Dave Jones [Tue, 12 Dec 2006 19:16:36 +0000 (20:16 +0100)]
Fix typo in new debug options.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
18 years agoJon needs a new shift key.
Dave Jones [Tue, 12 Dec 2006 19:15:40 +0000 (20:15 +0100)]
Jon needs a new shift key.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
18 years agofs: Convert kmalloc() + memset() to kzalloc() in fs/.
Robert P. J. Day [Tue, 12 Dec 2006 19:07:35 +0000 (20:07 +0100)]
fs: Convert kmalloc() + memset() to kzalloc() in fs/.

Convert the single available instance of kmalloc() + memset() to
kzalloc() in the fs/ directory.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
18 years agoconfigfs.h: Remove dead macro definitions.
Robert P. J. Day [Tue, 12 Dec 2006 19:05:50 +0000 (20:05 +0100)]
configfs.h: Remove dead macro definitions.

Delete the __ATTR-related macro definitions since these are now
defined in include/linux/sysfs.h.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
18 years agokconfig: Standardize "depends" -> "depends on" in Kconfig files
Robert P. J. Day [Tue, 12 Dec 2006 19:04:19 +0000 (20:04 +0100)]
kconfig: Standardize "depends" -> "depends on" in Kconfig files

Standardize the miniscule percentage of occurrences of "depends" in
Kconfig files to "depends on", and update kconfig-language.txt to
reflect that.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
18 years agoe100: replace kmalloc with kcalloc
Yan Burman [Tue, 12 Dec 2006 19:03:10 +0000 (20:03 +0100)]
e100: replace kmalloc with kcalloc

Replace kmalloc+memset with kcalloc

Signed-off-by: Yan Burman <burman.yan@gmail.com>
Acked-By: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
18 years agoum: replace kmalloc+memset with kzalloc
Yan Burman [Tue, 12 Dec 2006 18:54:52 +0000 (19:54 +0100)]
um: replace kmalloc+memset with kzalloc

Replace kmalloc+memset with kzalloc

Signed-off-by: Yan Burman <burman.yan@gmail.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
18 years agofix typo in net/ipv4/ip_fragment.c
Peter Zijlstra [Tue, 12 Dec 2006 18:48:59 +0000 (19:48 +0100)]
fix typo in net/ipv4/ip_fragment.c

Signed-off-by: Adrian Bunk <bunk@stusta.de>
18 years ago[IA64] s/termios/ktermios/ in simserial.c
Tony Luck [Tue, 12 Dec 2006 18:47:36 +0000 (10:47 -0800)]
[IA64] s/termios/ktermios/ in simserial.c

This got missed in 606d099cdd1080bbb50ea50dc52d98252f8f10a1

Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[PATCH] remove config ordering/dependency between ucb1400-ts and sound subsystem
Nicolas Pitre [Tue, 12 Dec 2006 18:32:29 +0000 (13:32 -0500)]
[PATCH] remove config ordering/dependency between ucb1400-ts and sound subsystem

Commit 2d4ba4a3b9aef95d328d74a17ae84f8d658059e2 introduced a dependency
that was never meant to exist when the ac97_bus.c module was created.
Move ac97_bus.c up the directory hierarchy to make sure it is built when
selected even if sound is configured out so things work as originally
intended.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years agoinclude/linux/compiler.h: reject gcc 3 < gcc 3.2
Alistair John Strachan [Tue, 12 Dec 2006 18:28:50 +0000 (19:28 +0100)]
include/linux/compiler.h: reject gcc 3 < gcc 3.2

The kernel doesn't compile with GCC <3.2, do not allow it to succeed if GCC
3.0.x or 3.1.x are used.

Signed-off-by: Alistair John Strachan <s0348365@sms.ed.ac.uk>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
18 years agoKconfig: fix spelling error in config KALLSYMS help text
Jesper Juhl [Tue, 12 Dec 2006 18:25:11 +0000 (19:25 +0100)]
Kconfig: fix spelling error in config KALLSYMS help text

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-By: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>