Commit Graph

54235 Commits

Author SHA1 Message Date
David Rientjes
826fad1b93 smaps: extract pmd walker from smaps code
Extracts the pmd walker from smaps-specific code in fs/proc/task_mmu.c.

The new struct pmd_walker includes the struct vm_area_struct of the memory to
walk over.  Iteration begins at the vma->vm_start and completes at
vma->vm_end.  A pointer to another data structure may be stored in the private
field such as struct mem_size_stats, which acts as the smaps accumulator.  For
each pmd in the VMA, the action function is called with a pointer to its
struct vm_area_struct, a pointer to the pmd_t, its start and end addresses,
and the private field.

The interface for walking pmd's in a VMA for fs/proc/task_mmu.c is now:

	void for_each_pmd(struct vm_area_struct *vma,
			  void (*action)(struct vm_area_struct *vma,
					 pmd_t *pmd, unsigned long addr,
					 unsigned long end,
					 void *private),
			  void *private);

Since the pmd walker is now extracted from the smaps code, smaps_one_pmd() is
invoked for each pmd in the VMA.  Its behavior and efficiency is identical to
the existing implementation.

Cc: Hugh Dickins <hugh@veritas.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:52 -07:00
Zachary Amsden
0013572b2a i386: use pte_update_defer in ptep_test_and_clear_{dirty,young}
If you actually clear the bit, you need to:

+         pte_update_defer(vma->vm_mm, addr, ptep);

The reason is, when updating PTEs, the hypervisor must be notified.  Using
atomic operations to do this is fine for all hypervisors I am aware of.
However, for hypervisors which shadow page tables, if these PTE
modifications are not trapped, you need a post-modification call to fulfill
the update of the shadow page table.

Acked-by: Zachary Amsden <zach@vmware.com>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:52 -07:00
David Rientjes
10a8d6ae4b i386: add ptep_test_and_clear_{dirty,young}
Add ptep_test_and_clear_{dirty,young} to i386.  They advertise that they
have it and there is at least one place where it needs to be called without
the page table lock: to clear the accessed bit on write to
/proc/pid/clear_refs.

ptep_clear_flush_{dirty,young} are updated to use the new functions.  The
overall net effect to current users of ptep_clear_flush_{dirty,young} is
that we introduce an additional branch.

Cc: Hugh Dickins <hugh@veritas.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:52 -07:00
Borislav Petkov
9490991482 Add unitialized_var() macro for suppressing gcc warnings
Introduce a macro for suppressing gcc from generating a warning about a
probable uninitialized state of a variable.

Example:

-	spinlock_t *ptl;
+	spinlock_t *uninitialized_var(ptl);

Not a happy solution, but those warnings are obnoxious.

- Using the usual pointlessly-set-it-to-zero approach wastes several
  bytes of text.

- Using a macro means we can (hopefully) do something else if gcc changes
  cause the `x = x' hack to stop working

- Using a macro means that people who are worried about hiding true bugs
  can easily turn it off.

Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:52 -07:00
Nick Piggin
a8127717cb mm: simplify filemap_nopage
Identical block is duplicated twice: contrary to the comment, we have been
re-reading the page *twice* in filemap_nopage rather than once.

If any retry logic or anything is needed, it belongs in lower levels anyway.
Only retry once.  Linus agrees.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:52 -07:00
Andy Whitcroft
14e0729841 add pfn_valid_within helper for sub-MAX_ORDER hole detection
Generally we work under the assumption that memory the mem_map array is
contigious and valid out to MAX_ORDER_NR_PAGES block of pages, ie.  that if we
have validated any page within this MAX_ORDER_NR_PAGES block we need not check
any other.  This is not true when CONFIG_HOLES_IN_ZONE is set and we must
check each and every reference we make from a pfn.

Add a pfn_valid_within() helper which should be used when scanning pages
within a MAX_ORDER_NR_PAGES block when we have already checked the validility
of the block normally with pfn_valid().  This can then be optimised away when
we do not have holes within a MAX_ORDER_NR_PAGES block of pages.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Bob Picco <bob.picco@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:52 -07:00
Adrian Bunk
ac267728f1 mm/slab.c: proper prototypes
Add proper prototypes in include/linux/slab.h.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:52 -07:00
Heiko Carstens
411f0f3edc Introduce CONFIG_HAS_DMA
Architectures that don't support DMA can say so by adding a config NO_DMA
to their Kconfig file.  This will prevent compilation of some dma specific
driver code.  Also dma-mapping-broken.h isn't needed anymore on at least
s390.  This avoids compilation and linking of otherwise dead/broken code.

Other architectures that include dma-mapping-broken.h are arm26, h8300,
m68k, m68knommu and v850.  If these could be converted as well we could get
rid of the header file.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
"John W. Linville" <linville@tuxdriver.com>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: <James.Bottomley@SteelEye.com>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: <geert@linux-m68k.org>
Cc: <zippel@linux-m68k.org>
Cc: <spyro@f2s.com>
Cc: <uclinux-v850@lsi.nec.co.jp>
Cc: <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:51 -07:00
Joshua N Pritikin
9a82782f8f allow oom_adj of saintly processes
If the badness of a process is zero then oom_adj>0 has no effect.  This
patch makes sure that the oom_adj shift actually increases badness points
appropriately.

Signed-off-by: Joshua N. Pritikin <jpritikin@pobox.com>
Cc: Andrea Arcangeli <andrea@novell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:51 -07:00
Nick Piggin
3d67f2d7c0 fs: buffer don't PageUptodate without page locked
__block_write_full_page is calling SetPageUptodate without the page locked.
This is unusual, but not incorrect, as PG_writeback is still set.

However the next patch will require that SetPageUptodate always be called with
the page locked.  Simply don't bother setting the page uptodate in this case
(it is unusual that the write path does such a thing anyway).  Instead just
leave it to the read side to bring the page uptodate when it notices that all
buffers are uptodate.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:51 -07:00
Nick Piggin
6fe6900e1e mm: make read_cache_page synchronous
Ensure pages are uptodate after returning from read_cache_page, which allows
us to cut out most of the filesystem-internal PageUptodate calls.

I didn't have a great look down the call chains, but this appears to fixes 7
possible use-before uptodate in hfs, 2 in hfsplus, 1 in jfs, a few in
ecryptfs, 1 in jffs2, and a possible cleared data overwritten with readpage in
block2mtd.  All depending on whether the filler is async and/or can return
with a !uptodate page.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:51 -07:00
Pekka Enberg
714b8171af slab: ensure cache_alloc_refill terminates
If slab->inuse is corrupted, cache_alloc_refill can enter an infinite
loop as detailed by Michael Richardson in the following post:
<http://lkml.org/lkml/2007/2/16/292>. This adds a BUG_ON to catch
those cases.

Cc: Michael Richardson <mcr@sandelman.ca>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:51 -07:00
Nick Piggin
5f22df00a0 mm: remove gcc workaround
Minimum gcc version is 3.2 now.  However, with likely profiling, even
modern gcc versions cannot always eliminate the call.

Replace the placeholder functions with the more conventional empty static
inlines, which should be optimal for everyone.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:51 -07:00
Adrian Bunk
d2ba27e800 proper prototype for hugetlb_get_unmapped_area()
Add a proper prototype for hugetlb_get_unmapped_area() in
include/linux/hugetlb.h.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: William Irwin <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:51 -07:00
Christoph Lameter
1b4244647c Use ZVC counters to establish exact size of dirtyable pages
We can use the global ZVC counters to establish the exact size of the LRU
and the free pages.  This allows a more accurate determination of the dirty
ratio.

This patch will fix the broken ratio calculations if large amounts of
memory are allocated to huge pags or other consumers that do not put the
pages on to the LRU.

Notes:
- I did not add NR_SLAB_RECLAIMABLE to the calculation of the
  dirtyable pages. Those may be reclaimable but they are at this
  point not dirtyable. If NR_SLAB_RECLAIMABLE would be considered
  then a huge number of reclaimable pages would stop writeback
  from occurring.

- This patch used to be in mm as the last one in a series of patches.
  It was removed when Linus updated the treatment of highmem because
  there was a conflict. I updated the patch to follow Linus' approach.
  This patch is neede to fulfill the claims made in the beginning of the
  patchset that is now in Linus' tree.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:51 -07:00
Christoph Lameter
476f35348e Safer nr_node_ids and nr_node_ids determination and initial values
The nr_cpu_ids value is currently only calculated in smp_init.  However, it
may be needed before (SLUB needs it on kmem_cache_init!) and other kernel
components may also want to allocate dynamically sized per cpu array before
smp_init.  So move the determination of possible cpus into sched_init()
where we already loop over all possible cpus early in boot.

Also initialize both nr_node_ids and nr_cpu_ids with the highest value they
could take.  If we have accidental users before these values are determined
then the current valud of 0 may cause too small per cpu and per node arrays
to be allocated.  If it is set to the maximum possible then we only waste
some memory for early boot users.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:51 -07:00
Jeremy Fitzhardinge
aee16b3cee Add apply_to_page_range() which applies a function to a pte range
Add a new mm function apply_to_page_range() which applies a given function to
every pte in a given virtual address range in a given mm structure.  This is a
generic alternative to cut-and-pasting the Linux idiomatic pagetable walking
code in every place that a sequence of PTEs must be accessed.

Although this interface is intended to be useful in a wide range of
situations, it is currently used specifically by several Xen subsystems, for
example: to ensure that pagetables have been allocated for a virtual address
range, and to construct batched special pagetable update requests to map I/O
memory (in ioremap()).

[akpm@linux-foundation.org: fix warning, unpleasantly]
Signed-off-by: Ian Pratt <ian.pratt@xensource.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Matt Mackall <mpm@waste.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:51 -07:00
Jiri Slaby
eb3a1e1145 Serial: serial_core, use pr_debug
serial_core, use pr_debug

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:51 -07:00
Dave Jiang
1733310bb7 MPSC serial driver tx locking
The MPSC serial driver assumes that interrupt is always on to pick up the
DMA transmit ops that aren't submitted while the DMA engine is active.
However when irqs are off for a period of time such as operations under
kernel crash dump console messages do not show up due to additional DMA ops
are being dropped.  This makes console writes to process through all the tx
DMAs queued up before submitting a new request.

Also, the current locking mechanism does not protect the hardware registers
and ring buffer when a printk is done during the serial write operations.
The additional per port transmit lock provides a finer granular locking and
protects registers being clobbered while printks are nested within UART
writes.

Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:50 -07:00
David Gibson
abb4a23907 serial: define FIXED_PORT flag for serial_core
At present, the serial core always allows setserial in userspace to change the
port address, irq and base clock of any serial port.  That makes sense for
legacy ISA ports, but not for (say) embedded ns16550 compatible serial ports
at peculiar addresses.  In these cases, the kernel code configuring the ports
must know exactly where they are, and their clocking arrangements (which can
be unusual on embedded boards).  It doesn't make sense for userspace to change
these settings.

Therefore, this patch defines a UPF_FIXED_PORT flag for the uart_port
structure.  If this flag is set when the serial port is configured, any
attempts to alter the port's type, io address, irq or base clock with
setserial are ignored.

In addition this patch uses the new flag for on-chip serial ports probed in
arch/powerpc/kernel/legacy_serial.c, and for other hard-wired serial ports
probed by drivers/serial/of_serial.c.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:50 -07:00
Thomas Koeller
bd71c182d5 RM9000 serial driver
Add support for the integrated serial ports of the MIPS RM9122 processor
and its relatives.

The patch also does some whitespace cleanup.

[akpm@linux-foundation.org: cleanups]
Signed-off-by: Thomas Koeller <thomas.koeller@baslerweb.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:50 -07:00
Marc St-Jean
beab697ab4 serial driver PMC MSP71xx
Serial driver patch for the PMC-Sierra MSP71xx devices.

There are three different fixes:

1 Fix for DesignWare APB THRE errata: In brief, this is a non-standard
  16550 in that the THRE interrupt will not re-assert itself simply by
  disabling and re-enabling the THRI bit in the IER, it is only re-enabled
  if a character is actually sent out.

  It appears that the "8250-uart-backup-timer.patch" in the "mm" tree
  also fixes it so we have dropped our initial workaround.  This patch now
  needs to be applied on top of that "mm" patch.

2 Fix for Busy Detect on LCR write: The DesignWare APB UART has a feature
  which causes a new Busy Detect interrupt to be generated if it's busy
  when the LCR is written.  This fix saves the value of the LCR and
  rewrites it after clearing the interrupt.

3 Workaround for interrupt/data concurrency issue: The SoC needs to
  ensure that writes that can cause interrupts to be cleared reach the UART
  before returning from the ISR.  This fix reads a non-destructive register
  on the UART so the read transaction completion ensures the previously
  queued write transaction has also completed.

Signed-off-by: Marc St-Jean <Marc_St-Jean@pmc-sierra.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:50 -07:00
Bernhard Walle
6179b5562d add new_id to PCMCIA drivers
PCI drivers have the new_id file in sysfs which allows new IDs to be added
at runtime.  The advantage is to avoid re-compilation of a driver that
works for a new device, but it's ID table doesn't contain the new device.
This mechanism is only meant for testing, after the driver has been tested
successfully, the ID should be added in source code so that new revisions
of the kernel automatically detect the device.

The implementation follows the PCI implementation. The interface is documented
in Documentation/pcmcia/driver.txt. Computations should be done in userspace,
so the sysfs string contains the raw structure members for matching.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:50 -07:00
David Brownell
02c83595b8 at91_cf, minor fix
This is a minor correctness fix: since the at91_cf driver probe() routine
is in the init section, it should use platform_driver_probe() instead of
leaving that pointer around in the driver struct after init section
removal.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:50 -07:00
Pekka Enberg
fd76bab2fa slab: introduce krealloc
This introduce krealloc() that reallocates memory while keeping the contents
unchanged.  The allocator avoids reallocation if the new size fits the
currently used cache.  I also added a simple non-optimized version for
mm/slob.c for compatibility.

[akpm@linux-foundation.org: fix warnings]
Acked-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Acked-by: Matt Mackall <mpm@selenic.com>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:50 -07:00
Linus Torvalds
e3ebadd95c Revert "[PATCH] x86: __pa and __pa_symbol address space separation"
This was broken.  It adds complexity, for no good reason.  Rather than
separate __pa() and __pa_symbol(), we should deprecate __pa_symbol(),
and preferably __pa() too - and just use "virt_to_phys()" instead, which
is more readable and has nicer semantics.

However, right now, just undo the separation, and make __pa_symbol() be
the exact same as __pa().  That fixes the bugs this patch introduced,
and we can do the fairly obvious cleanups later.

Do the new __phys_addr() function (which is now the actual workhorse for
the unified __pa()/__pa_symbol()) as a real external function, that way
all the potential issues with compile/link-time optimizations of
constant symbol addresses go away, and we can also, if we choose to, add
more sanity-checking of the argument.

Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 08:44:24 -07:00
Linus Torvalds
15700770ef Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (38 commits)
  kconfig: fix mconf segmentation fault
  kbuild: enable use of code from a different dir
  kconfig: error out if recursive dependencies are found
  kbuild: scripts/basic/fixdep segfault on pathological string-o-death
  kconfig: correct minor typo in Kconfig warning message.
  kconfig: fix path to modules.txt in Kconfig help
  usr/Kconfig: fix typo
  kernel-doc: alphabetically-sorted entries in index.html of 'htmldocs'
  kbuild: be more explicit on missing .config file
  kbuild: clarify the creation of the LOCALVERSION_AUTO string.
  kbuild: propagate errors from find in scripts/gen_initramfs_list.sh
  kconfig: refer to qt3 if we cannot find qt libraries
  kbuild: handle compressed cpio initramfs-es
  kbuild: ignore section mismatch warning for references from .paravirtprobe to .init.text
  kbuild: remove stale comment in modpost.c
  kbuild/mkuboot.sh: allow spaces in CROSS_COMPILE
  kbuild: fix make mrproper for Documentation/DocBook/man
  kbuild: remove kconfig binaries during make mrproper
  kconfig/menuconfig: do not hardcode '.config'
  kbuild: override build timestamp & version
  ...
2007-05-06 13:21:57 -07:00
Linus Torvalds
6de410c2b0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (66 commits)
  KVM: Remove unused 'instruction_length'
  KVM: Don't require explicit indication of completion of mmio or pio
  KVM: Remove extraneous guest entry on mmio read
  KVM: SVM: Only save/restore MSRs when needed
  KVM: fix an if() condition
  KVM: VMX: Add lazy FPU support for VT
  KVM: VMX: Properly shadow the CR0 register in the vcpu struct
  KVM: Don't complain about cpu erratum AA15
  KVM: Lazy FPU support for SVM
  KVM: Allow passing 64-bit values to the emulated read/write API
  KVM: Per-vcpu statistics
  KVM: VMX: Avoid unnecessary vcpu_load()/vcpu_put() cycles
  KVM: MMU: Avoid heavy ASSERT at non debug mode.
  KVM: VMX: Only save/restore MSR_K6_STAR if necessary
  KVM: Fold drivers/kvm/kvm_vmx.h into drivers/kvm/vmx.c
  KVM: VMX: Don't switch 64-bit msrs for 32-bit guests
  KVM: VMX: Reduce unnecessary saving of host msrs
  KVM: Handle guest page faults when emulating mmio
  KVM: SVM: Report hardware exit reason to userspace instead of dmesg
  KVM: Retry sleeping allocation if atomic allocation fails
  ...
2007-05-06 13:21:18 -07:00
Linus Torvalds
c6799ade4a Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (82 commits)
  [ARM] Add comments marking in-use ptrace numbers
  [ARM] Move syscall saving out of the way of utrace
  [ARM] 4360/1: S3C24XX: regs-udc.h remove unused macro
  [ARM] 4358/1: S3C24XX: mach-qt2410.c: remove linux/mmc/protocol.h header
  [ARM] mm 10: allow memory type to be specified with ioremap
  [ARM] mm 9: add additional device memory types
  [ARM] mm 8: define mem_types table L1 bit 4 to be for ARMv6
  [ARM] iop: add missing parens in macro
  [ARM] mm 7: remove duplicated __ioremap() prototypes
  ARM: OMAP: fix OMAP1 mpuio suspend/resume oops
  ARM: OMAP: MPUIO wake updates
  ARM: OMAP: speed up gpio irq handling
  ARM: OMAP: plat-omap changes for 2430 SDP
  ARM: OMAP: gpio object shrinkage, cleanup
  ARM: OMAP: /sys/kernel/debug/omap_gpio
  ARM: OMAP: Implement workaround for GPIO wakeup bug in OMAP2420 silicon
  ARM: OMAP: Enable 24xx GPIO autoidling
  [ARM] 4318/2: DSM-G600 Board Support
  [ARM] 4227/1: minor head.S fixups
  [ARM] 4328/1: Move i.MX UART regs to driver
  ...
2007-05-06 13:20:10 -07:00
Russell King
5cd4715515 Merge branch 'ixp4xx' into devel
Conflicts:

	include/asm-arm/arch-ixp4xx/io.h
2007-05-06 20:58:29 +01:00
Russell King
6f95416ebe Merge branches 'arm-mm', 'at91', 'clkevts', 'imx', 'iop', 'misc', 'netx', 'ns9xxx', 'omap', 'pxa', 'rpc', 's3c' and 'sa1100' into devel 2007-05-06 20:57:51 +01:00
Russell King
1b11652286 [ARM] Add comments marking in-use ptrace numbers
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-06 14:49:56 +01:00
Russell King
5ba6d3febd [ARM] Move syscall saving out of the way of utrace
utrace removes the ptrace_message field in task_struct.  Move our use
of this field into a new member in thread_info called "syscall"

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-06 13:56:26 +01:00
Marcin Garski
11de39e2fb kconfig: fix mconf segmentation fault
I have found small bug in mconf, when you run it without any argument it
will sigsegv.

Without patch:
$ scripts/kconfig/mconf
Segmentation fault

With patch:
$ scripts/kconfig/mconf
can't find file (null)

Signed-off-by: Marcin Garski <mgarski@post.pl>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-06 09:27:15 +02:00
Sam Ravnborg
767e581d75 kbuild: enable use of code from a different dir
To introduce support for source in one directory but output files
in another directory during a non O= build prefix all paths
with $(src) repsectively $(obj).

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-06 09:23:45 +02:00
Sam Ravnborg
5447d34b08 kconfig: error out if recursive dependencies are found
Sample:
config FOO
	bool "This is foo"
	depends on BAR

config BAR
	bool "This is bar"
	depends on FOO

This will result in following error message:
error: found recursive dependency: FOO -> BAR -> FOO

And will then exit with exit code equal 1 so make will stop.
Inspired by patch from: Adrian Bunk <bunk@stusta.de>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Adrian Bunk <bunk@stusta.de>
Cc: Roman Zippel <zippel@linux-m68k.org>
2007-05-06 09:20:10 +02:00
Linus Torvalds
b7405e1643 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] Fix typo in cifs readme from previous commit
  [CIFS] Make sec=none force an anonymous mount
  [CIFS] Change semaphore to mutex for cifs lock_sem
  [CIFS] Fix oops in reset_cifs_unix_caps on reconnect
  [CIFS] UID/GID override on CIFS mounts to Samba
  [CIFS] prefixpath mounts to servers supporting posix paths used wrong slash
  [CIFS] Update cifs version to 1.49
  [CIFS] Replace kmalloc/memset combination with kzalloc
  [CIFS]  Add IPv6 support
  [CIFS] New CIFS POSIX mkdir performance improvement (part 2)
  [CIFS] New CIFS POSIX mkdir performance improvement
  [CIFS] Add write perm for usr to file on windows should remove r/o dos attr
  [CIFS] Remove unnecessary parm to cifs_reopen_file
  [CIFS] Switch cifsd to kthread_run from kernel_thread
  [CIFS] Remove unnecessary checks
2007-05-05 15:30:53 -07:00
Steve French
0ec54aa8af [CIFS] Fix typo in cifs readme from previous commit
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-05-05 22:08:06 +00:00
Linus Torvalds
ea62ccd00f Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (231 commits)
  [PATCH] i386: Don't delete cpu_devs data to identify different x86 types in late_initcall
  [PATCH] i386: type may be unused
  [PATCH] i386: Some additional chipset register values validation.
  [PATCH] i386: Add missing !X86_PAE dependincy to the 2G/2G split.
  [PATCH] x86-64: Don't exclude asm-offsets.c in Documentation/dontdiff
  [PATCH] i386: avoid redundant preempt_disable in __unlazy_fpu
  [PATCH] i386: white space fixes in i387.h
  [PATCH] i386: Drop noisy e820 debugging printks
  [PATCH] x86-64: Fix allnoconfig error in genapic_flat.c
  [PATCH] x86-64: Shut up warnings for vfat compat ioctls on other file systems
  [PATCH] x86-64: Share identical video.S between i386 and x86-64
  [PATCH] x86-64: Remove CONFIG_REORDER
  [PATCH] x86-64: Print type and size correctly for unknown compat ioctls
  [PATCH] i386: Remove copy_*_user BUG_ONs for (size < 0)
  [PATCH] i386: Little cleanups in smpboot.c
  [PATCH] x86-64: Don't enable NUMA for a single node in K8 NUMA scanning
  [PATCH] x86: Use RDTSCP for synchronous get_cycles if possible
  [PATCH] i386: Add X86_FEATURE_RDTSCP
  [PATCH] i386: Implement X86_FEATURE_SYNC_RDTSC on i386
  [PATCH] i386: Implement alternative_io for i386
  ...

Fix up trivial conflict in include/linux/highmem.h manually.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-05 14:55:20 -07:00
Linus Torvalds
886a0768af Fix compile of tmscsim SCSI driver
It still used the long-deprecated "pci_module_init()" interface, rather
than the proper "pci_register_driver()" one.

[ I don't have the hardware, and I doubt many do, but the fix is
  trivial and obvious, and can't be worse than not compiling ]

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-05 14:23:40 -07:00
Ralf Baechle
989485c190 Fix nfsroot build
CC      fs/nfs/nfsroot.o
fs/nfs/nfsroot.c:131: error: tokens causes a section type conflict
make[2]: *** [fs/nfs/nfsroot.o] Error 1

This is due to mixing const and non-const content in the same section
which halfway recent gccs absolutely hate.  Fixed by dropping the const.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-05 14:15:32 -07:00
Linus Torvalds
68762f3d8e Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [TG3]: Add TG3_FLAG_SUPPORT_MSI flag.
  [TG3]: Eliminate the TG3_FLAG_5701_REG_WRITE_BUG flag.
  [TG3]: Eliminate the TG3_FLAG_GOT_SERDES_FLOWCTL flag.
  [TG3]: Remove reset during MAC address changes.
  [TG3]: WoL fixes.
  [TG3]: Clear GPIO mask before storing.
  [TG3]: Improve NVRAM sizing.
  [TG3]: Fix TSO bugs.
  [MAC80211]: Add maintainers entry for mac80211.
  [MAC80211]: Add debugfs attributes.
  [MAC80211]: Add mac80211 wireless stack.
  [MAC80211]: Add generic include/linux/ieee80211.h
  [NETLINK]: Remove references to process ID
  [AF_IUCV]: Compile fix - adopt to skbuff changes.
2007-05-05 14:13:36 -07:00
Linus Torvalds
4f7a307dc6 Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (87 commits)
  [SCSI] fusion: fix domain validation loops
  [SCSI] qla2xxx: fix regression on sparc64
  [SCSI] modalias for scsi devices
  [SCSI] sg: cap reserved_size values at max_sectors
  [SCSI] BusLogic: stop using check_region
  [SCSI] tgt: fix rdma transfer bugs
  [SCSI] aacraid: fix aacraid not finding device
  [SCSI] aacraid: Correct SMC products in aacraid.txt
  [SCSI] scsi_error.c: Add EH Start Unit retry
  [SCSI] aacraid: [Fastboot] Panics for AACRAID driver during 'insmod' for kexec test.
  [SCSI] ipr: Driver version to 2.3.2
  [SCSI] ipr: Faster sg list fetch
  [SCSI] ipr: Return better qc_issue errors
  [SCSI] ipr: Disrupt device error
  [SCSI] ipr: Improve async error logging level control
  [SCSI] ipr: PCI unblock config access fix
  [SCSI] ipr: Fix for oops following SATA request sense
  [SCSI] ipr: Log error for SAS dual path switch
  [SCSI] ipr: Enable logging of debug error data for all devices
  [SCSI] ipr: Add new PCI-E IDs to device table
  ...
2007-05-05 13:30:44 -07:00
Linus Torvalds
fabb5c4e4a Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/voyager-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/voyager-2.6:
  [VOYAGER] add smp alternatives
  [VOYAGER] Use modern techniques to setup and teardown low identiy mappings.
  [VOYAGER] Convert the monitor thread to use the kthread API
  [VOYAGER] clockevents driver: bring voyager in to line
  [VOYAGER] clockevents: correct boot cpu is zero assumption
  [VOYAGER] add smp_call_function_single
2007-05-05 13:30:23 -07:00
Arnaud Patard
d0fdb5a58e [ARM] 4360/1: S3C24XX: regs-udc.h remove unused macro
The S3C2410_UDC_SETIX() macro is not used and won't be used by the udc
driver, so delete it.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-05 21:09:42 +01:00
Arnaud Patard
c4b5bd4b10 [ARM] 4358/1: S3C24XX: mach-qt2410.c: remove linux/mmc/protocol.h header
linux/mmc/protocol.h header is gone, thus breaking the build of the
mach-qt2410.c file. As this header is not used, I'm removing it. The
right headers may still be added later if needed.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-05 21:09:41 +01:00
Michael Chan
7544b0972c [TG3]: Add TG3_FLAG_SUPPORT_MSI flag.
And fix up the code to always allow MSI on 5714 A2.

Call tg3_find_peer() earlier because we need that information before
we can determine whether we can set TG3_FLAG_SUPPORT_MSI or not.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-05 13:08:32 -07:00
Fabrice Aeschbacher
aa12b2842a ide-cs: recognize 2GB CompactFlash from Transcend
Without the following patch, the kernel does not automatically detect
2GB CompactFlash cards from Transcend.

Signed-off-by: Fabrice Aeschbacher <fabrice.aeschbacher@siemens.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Acked-by: Peter Stuge <peter@stuge.se>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-05 22:03:51 +02:00
Sergei Shtylyov
fdb0d72be4 hpt366: don't check enablebits for HPT36x
HPT36x chip don't seem to have the channel enable bits, so prevent the IDE core
from checking them...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Michal Kepien <michal.kepien@poczta.onet.pl>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-05 22:03:51 +02:00
Bartlomiej Zolnierkiewicz
55e4dee329 ide-cris: fix ->speedproc and wrong ->swdma_mask
* fix ->speedproc to set the drive speed

* this driver doesn't support SWDMA so use the correct ->swdma_mask

* BUG() if an unsupported mode is passed to ->speedproc

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-05 22:03:51 +02:00