With recent rewrite for generic bitops, fls() for 32bit kernel with
MIPS64_CPU is broken. Also, ffs(), fls() should be defined the same
way as the libc and compiler built-in routines (returns int instead of
unsigned long).
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
find_get_pages_contig() will break out if we hit a hole in the page cache.
From Andrew Morton, small modifications and documentation by me.
Signed-off-by: Jens Axboe <axboe@suse.de>
There was a whole load of crap exposed which should have been inside the
existing #ifdef __KERNEL__ part. Also hide struct sched_param for now,
since glibc has its own and doesn't like being given ours (yet).
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Don't include <linux/sched.h> outside __KERNEL__, and split the EM_xxx
definitions out of elf.h into elf-em.h so that audit.h can include just
that and not pollute the namespace any further than it needs to.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This is a workaround for the case edge-triggered irq's. Several users
seem to have broken configurations sharing edge-triggered irq's. To avoid
losing IRQ's, reshedule if more work arrives.
The changes to netdevice.h are to extract the part that puts device
back in list into separate inline.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
sys_splice() moves data to/from pipes with a file input/output. sys_vmsplice()
moves data to a pipe, with the input being a user address range instead.
This uses an approach suggested by Linus, where we can hold partial ranges
inside the pages[] map. Hopefully this will be useful for network
receive support as well.
Signed-off-by: Jens Axboe <axboe@suse.de>
Providing more accurate coordinates for thumb press requires additional
steps in the filtering logic:
- Ignore samples found invalid by the debouncing logic, or the ones that
have out of bound pressure value.
- Add a parameter to repeat debouncing, so that more then two consecutive
good readings are required for a valid sample.
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Acked-by: Juha Yrjola <juha.yrjola@nokia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Move some inclusion of private header files and the definition of
RPC_DEBUG inside the existing #ifdef __KERNEL__
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Currently, unifdef removes the comment which starts on the same line as
the #ifdef __KERNEL__, but leaves the second line of the comment in place.
Move the comment onto a separate line.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
For now, just make sure all inclusion of private header files is done
within #ifdef __KERNEL__. There'll be more to clean up later.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
It only really needs to define a few constants and include <asm/mman.h>
when it's used by userspace. Move the rest within #ifdef __KERNEL__
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
It was unconditionally including a whole bunch of headers which aren't
user-visible, and also exposing a lot of private internal stuff of its
own. Also fix some legacy character set to UTF-8 while we're at it.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
It doesn't need to include i2c.h, because a forward declaration of
struct i2c_adapter is perfectly sufficient. And it can be inside
#ifdef __KERNEL__ along with the kernel-internal structure definition.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Some (?) non-x86 architectures require 8byte alignment for u_int64_t
even when compiled for 32bit, using u_int32_t in compat_xt_counters
breaks on these architectures, use u_int64_t for everything but x86.
Reported by Andreas Schwab <schwab@suse.de>.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
__NR_sys_sync_file_range part was lost somewhere...
[glibc is already checking __NR_sync_file_range]
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are some bugs in the current implementation of the SIOCSIWAP wext,
for example that when you do it twice and it fails, it may still try
another access point for some reason. This patch fixes this by introducing
a new flag that tells the association code that the bssid that is in use
was fixed by the user and shouldn't be deviated from.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
[PARISC] MAINTAINERS
[PARISC] Make ioremap default to _nocache
[PARISC] Add new entries to the syscall table
[PARISC] Further work for multiple page sizes
[PARISC] Fix up hil_kbd.c mismerge
[PARISC] defconfig updates
[PARISC] Document that we tolerate "Relaxed Ordering"
[PARISC] Misc. janitorial work
[PARISC] EISA regions must be mapped NO_CACHE
[PARISC] OSS ad1889: Match register names with ALSA driver
machine_is() was always returning 0 when used in a module, because
we weren't exporting the machine definitions. This was why sound
wasn't working on powermacs when CONFIG_SND_POWERMAC=m. Original
fix from Ben Herrenschmidt, further fixed by me.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Since it is way more work to change most drivers to comply with parisc, take
the easy way out and make ioremap _NO_CACHE by default. This is in line with
what powerpc does.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Most are easy, but sync_file_range needed special handling when entering
through the 32-bit syscall table.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
More work towards supporing multiple page sizes on 64-bit. Convert
some assumptions that 64bit uses 3 level page tables into testing
PT_NLEVELS. Also some BUG() to BUG_ON() conversions and some cleanups
to assembler.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
RECLAIM_DISTANCE is checked on bootup against the SLIT table distances.
Zone reclaim is important for system that have higher latencies but not for
systems that have multiple nodes on one motherboard and therefore low latencies.
We found that on motherboard latencies are typically 1 to 1.4 of local memory
access speed whereas multinode systems which benefit from zone reclaim have
usually more than 1.5 times the latency of a local access.
Set the reclaim distance for IA64 to 1.5 times.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Some devices don't support full 32-bit DMA address space, which we currently
assume. Add the required mask-passing to the IOMMU allocators.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This patch removes following compile time warnings:
drivers/pci/pci-sysfs.c: In function `pci_read_legacy_io':
drivers/pci/pci-sysfs.c:257: warning: implicit declaration of function `ia64_pci_legacy_read'
drivers/pci/pci-sysfs.c: In function `pci_write_legacy_io':
drivers/pci/pci-sysfs.c:280: warning: implicit declaration of function `ia64_pci_legacy_write'
It also fixes wrong definition of ia64_pci_legacy_write (type of `bus' is not
`pci_dev', but `pci_bus').
Signed-Off-By: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
The SGI Altix SAL provides an interface for modifying
the ECC on memory to create memory errors. The SAL call
can be used to inject memory errors for testing MCA recovery
code.
Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck <tony.luck@intel.com>
Correctly size the PXM-related arrays for systems that have more than
256 nodes.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
cnodeid was being set but not used. The dead code was
left over from a previous version that grabbed a per node lock.
Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck <tony.luck@intel.com>
It seems latest kernel has a wrong/missing __read_mostly implementation
for x86_64
__read_mostly macro should be declared outside of #if CONFIG_X86_VSMP block
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
AMD K7/K8 CPUs only save/restore the FOP/FIP/FDP x87 registers in FXSAVE
when an exception is pending. This means the value leak through
context switches and allow processes to observe some x87 instruction
state of other processes.
This was actually documented by AMD, but nobody recognized it as
being different from Intel before.
The fix first adds an optimization: instead of unconditionally
calling FNCLEX after each FXSAVE test if ES is pending and skip
it when not needed. Then do a x87 load from a kernel variable to
clear FOP/FIP/FDP.
This means other processes always will only see a constant value
defined by the kernel in their FP state.
I took some pain to make sure to chose a variable that's already
in L1 during context switch to make the overhead of this low.
Also alternative() is used to patch away the new code on CPUs
who don't need it.
Patch for both i386/x86-64.
The problem was discovered originally by Jan Beulich. Richard
Brunner provided the basic code for the workarounds, with contribution
from Jan.
This is CVE-2006-1056
Cc: richard.brunner@amd.com
Cc: jbeulich@novell.com
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
We don't have to #if guard prototypes.
This also fixes a bug observed by Randy Dunlap due to a misspelled
option in the #if.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Remove the dependence on the async_icount structure in the TIOCGICOUNT
macro for Xtensa. (Thanks Russell and Adrian for pointing this out)
Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add some sanity checking. truesize should be at least sizeof(struct
sk_buff) plus the current packet length. If not, then truesize is
seriously mangled and deserves a kernel log message.
Currently we'll do the check for release of stream socket buffers.
But we can add checks to more spots over time.
Incorporating ideas from Herbert Xu.
Signed-off-by: David S. Miller <davem@davemloft.net>
Softmac is sending custom events to userspace already, but it
should _really_ be sending the right WEXT events instead. This
patch fixes that.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
* git://git.linux-nfs.org/pub/linux/nfs-2.6:
SUNRPC: Dead code in net/sunrpc/auth_gss/auth_gss.c
NFS: remove needless check in nfs_opendir()
NFS: nfs_show_stats; for_each_possible_cpu(), not NR_CPUS
NFS: make 2 functions static
NFS,SUNRPC: Fix compiler warnings if CONFIG_PROC_FS & CONFIG_SYSCTL are unset
NFS: fix PROC_FS=n compile error
VFS: Fix another open intent Oops
RPCSEC_GSS: fix leak in krb5 code caused by superfluous kmalloc
fs/built-in.o: In function `nfs_show_stats':inode.c:(.text+0x15481a): undefined reference to `rpc_print_iostats'
net/built-in.o: In function `rpc_destroy_client': undefined reference to `rpc_free_iostats'
net/built-in.o: In function `rpc_clone_client': undefined reference to `rpc_alloc_iostats'
net/built-in.o: In function `rpc_new_client': undefined reference to `rpc_alloc_iostats'
net/built-in.o: In function `xprt_release': undefined reference to `rpc_count_iostats'
make: *** [.tmp_vmlinux1] Error 1
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Noted by Sergei Shtylylov <sshtylyov@ru.mvista.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add support for the IDE device on ATI SB600
Signed-off-by: Felix Kuehling <fkuehlin@ati.com>
Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Here is a patch to support a reboot function for M3A-2170(Mappi-III)
evaluation board.
Signed-off-by: Hayato Fujiwara <fujiwara@linux-m32r.org>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch updates include/asm-m32r/semaphore.h for good readability and
maintainability.
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This modification is required to fix debugging function for m32r targets
with !CONFIG_ISA_DSP_LEVEL2, by unifying 'struct pt_regs' and 'struct
sigcontext' size for all M32R ISA.
Some m32r processor core with !CONFIG_ISA_DSP_LEVEL2 configuration has only
single accumulator a0 (ex. VDEC2 core, M32102 core, etc.), the others with
CONFIG_ISA_DSP_LEVEL2 has two accumulators, a0 and a1.
This means there are two variations of thread context. So far, we reduced
and changed stackframe size at a syscall for their context size. However,
this causes a problem that a GDB for processors with CONFIG_ISA_DSP_LEVEL2
cannot be used for processors with !CONFIG_ISA_DSP_LEVEL2.
From the viewpoint of GDB support, we should reduce such variation of
stackframe size for simplicity.
In this patch, dummy members are added to 'struct pt_regs' and 'struct
sigcontext' to adjust their size for !CONFIG_ISA_DSP_LEVEL2.
This modification is also a one step for a GDB update in future.
Currently, on the m32r, GDB can access process's context by using ptrace
functions in a simple way of register by register access. By unifying
stackframe size, we have a possibility to make use of ptrace functions of
not only a single register access but also block register access,
PTRACE_{GETREGS,PUTREGS}.
However, for this purpose, we might have to modify stackframe structure
some more; for example, PSW (processor status word) register should be
pre-processed before pushing to stack at a syscall, and so on. In this
case, we must update carefully both kernel and GDB at a time...
Signed-off-by: Hayato Fujiwara <fujiwara@linux-m32r.org>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Cc: Kei Sakamoto <ksakamot@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
atomic_add_return() if CONFIG_M386 can accidentally enable local interrupts.
Signed-off-by: Lepton Wu <ytht.net@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
for_each_cpu() actually iterates across all possible CPUs. We've had
mistakes in the past where people were using for_each_cpu() where they
should have been iterating across only online or present CPUs. This is
inefficient and possibly buggy.
We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this
in the future.
This patch replaces for_each_cpu with for_each_possible_cpu.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
While we can currently walk through thread groups, process groups, and
sessions with just the rcu_read_lock, this opens the door to walking the
entire task list.
We already have all of the other RCU guarantees so there is no cost in
doing this, this should be enough so that proc can stop taking the
tasklist lock during readdir.
prev_task was killed because it has no users, and using it will miss new
tasks when doing an rcu traversal.
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>
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (47 commits)
[MAINTAINERS] The ham radio code now has website at http://www.linux-ax25.org.
[MIPS] Use __ffs() instead of ffs() for waybit calculation.
[MIPS] Fix Makefile bugs for MIPS32/MIPS64 R1 and R2.
[MIPS] Handle IDE PIO cache aliases on SMP.
[MIPS] Make mips_srs_init static.
[MIPS] MIPS boards: Set HZ to 100.
[MIPS] kgdb: Let gcc compute the array size itself.
[MIPS] FPU affinity for MT ASE.
[MIPS] MT: Improved multithreading support.
[MIPS] kpsd and other AP/SP improvements.
[MIPS] R2: Instruction hazard barrier.
[MIPS] Fix genrtc compilation.
[MIPS] R2: Implement shadow register allocation without spinlock.
[MIPS] Fix VR41xx build errors.
[MIPS] Fix tx49_blast_icache32_page_indexed.
[MIPS] Enable SCHED_NO_NO_OMIT_FRAME_POINTER for MIPS.
[MIPS] Use "R" constraint for cache_op.
[MIPS] Rewrite all the assembler interrupt handlers to C.
[MIPS] Fix the crime against humanity that mipsIRQ.S is.
[MIPS] Fixup damage done by 22a9835c35.
...
Gcc might emit an absolute address for the the "m" constraint which
gas unfortunately does not permit.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
