01 Nov, 2011
1 commit
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There is no functional change.
Signed-off-by: Andy Shevchenko
Acked-by: Jesper Nilsson
Cc: David Howells
Cc: Koichi Yasutake
Cc: Jason Wessel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
27 Aug, 2011
1 commit
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The nfsservctl system call is now gone, so we should remove all
linkage for it.Signed-off-by: NeilBrown
Signed-off-by: J. Bruce Fields
Signed-off-by: Linus Torvalds
27 Jul, 2011
2 commits
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This allows us to move duplicated code in
(atomic_inc_not_zero() for now) toSigned-off-by: Arun Sharma
Reviewed-by: Eric Dumazet
Cc: Ingo Molnar
Cc: David Miller
Cc: Eric Dumazet
Acked-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The address limit is already set in flush_old_exec() so those calls to
set_fs(USER_DS) are redundant.Also removed the dead code in flush_thread().
Signed-off-by: Mathias Krause
Acked-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
24 Jul, 2011
1 commit
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This patch removes all the module loader hook implementations in the
architecture specific code where the functionality is the same as that
now provided by the recently added default hooks.Signed-off-by: Jonas Bonn
Acked-by: Mike Frysinger
Acked-by: Geert Uytterhoeven
Tested-by: Michal Simek
Signed-off-by: Rusty Russell
29 May, 2011
1 commit
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32bit and 64bit on x86 are tested and working. The rest I have looked
at closely and I can't find any problems.setns is an easy system call to wire up. It just takes two ints so I
don't expect any weird architecture porting problems.While doing this I have noticed that we have some architectures that are
very slow to get new system calls. cris seems to be the slowest where
the last system calls wired up were preadv and pwritev. avr32 is weird
in that recvmmsg was wired up but never declared in unistd.h. frv is
behind with perf_event_open being the last syscall wired up. On h8300
the last system call wired up was epoll_wait. On m32r the last system
call wired up was fallocate. mn10300 has recvmmsg as the last system
call wired up. The rest seem to at least have syncfs wired up which was
new in the 2.6.39.v2: Most of the architecture support added by Daniel Lezcano
v3: ported to v2.6.36-rc4 by: Eric W. Biederman
v4: Moved wiring up of the system call to another patch
v5: ported to v2.6.39-rc6
v6: rebased onto parisc-next and net-next to avoid syscall conflicts.
v7: ported to Linus's latest post 2.6.39 tree.> arch/blackfin/include/asm/unistd.h | 3 ++-
> arch/blackfin/mach-common/entry.S | 1 +
Acked-by: Mike FrysingerOh - ia64 wiring looks good.
Acked-by: Tony LuckSigned-off-by: Eric W. Biederman
Signed-off-by: Linus Torvalds
25 May, 2011
1 commit
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* 'for-2.6.40' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu: Unify input section names
percpu: Avoid extra NOP in percpu_cmpxchg16b_double
percpu: Cast away printk format warning
percpu: Always align percpu output section to PAGE_SIZEFix up fairly trivial conflict in arch/x86/include/asm/percpu.h as per Tejun
31 Mar, 2011
1 commit
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Fixes generated by 'codespell' and manually reviewed.
Signed-off-by: Lucas De Marchi
29 Mar, 2011
9 commits
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Signed-off-by: Thomas Gleixner
Signed-off-by: David Howells -
Convert to new function names. Converted with coccinelle.
Signed-off-by: Thomas Gleixner
Signed-off-by: David Howells -
All chips converted
Signed-off-by: Thomas Gleixner
Signed-off-by: David Howells -
Signed-off-by: Thomas Gleixner
Signed-off-by: David Howells -
Signed-off-by: Thomas Gleixner
Signed-off-by: David Howells -
Signed-off-by: Thomas Gleixner
Signed-off-by: David Howells -
Signed-off-by: Thomas Gleixner
Signed-off-by: David Howells -
Compiles way better.
Signed-off-by: Thomas Gleixner
Signed-off-by: David Howells -
irq_chip.end got obsolete with the removal of __do_IRQ().
irq-mb93093.c even lacks an implementation, but nobody noticed that
it's broken since commit 88d6e1 in 2006.Signed-off-by: Thomas Gleixner
Signed-off-by: David Howells
25 Mar, 2011
1 commit
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Percpu allocator honors alignment request upto PAGE_SIZE and both the
percpu addresses in the percpu address space and the translated kernel
addresses should be aligned accordingly. The calculation of the
former depends on the alignment of percpu output section in the kernel
image.The linker script macros PERCPU_VADDR() and PERCPU() are used to
define this output section and the latter takes @align parameter.
Several architectures are using @align smaller than PAGE_SIZE breaking
percpu memory alignment.This patch removes @align parameter from PERCPU(), renames it to
PERCPU_SECTION() and makes it always align to PAGE_SIZE. While at it,
add PCPU_SETUP_BUG_ON() checks such that alignment problems are
reliably detected and remove percpu alignment comment recently added
in workqueue.c as the condition would trigger BUG way before reaching
there.For um, this patch raises the alignment of percpu area. As the area
is in .init, there shouldn't be any noticeable difference.This problem was discovered by David Howells while debugging boot
failure on mn10300.Signed-off-by: Tejun Heo
Acked-by: Mike Frysinger
Cc: uclinux-dist-devel@blackfin.uclinux.org
Cc: David Howells
Cc: Jeff Dike
Cc: user-mode-linux-devel@lists.sourceforge.net
23 Mar, 2011
1 commit
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All kthreads being created from a single helper task, they all use memory
from a single node for their kernel stack and task struct.This patch suite creates kthread_create_on_cpu(), adding a 'cpu' parameter
to parameters already used by kthread_create().This parameter serves in allocating memory for the new kthread on its
memory node if available.Users of this new function are : ksoftirqd, kworker, migration, pktgend...
This patch:
Add a node parameter to alloc_task_struct(), and change its name to
alloc_task_struct_node()This change is needed to allow NUMA aware kthread_create_on_cpu()
Signed-off-by: Eric Dumazet
Acked-by: David S. Miller
Reviewed-by: Andi Kleen
Acked-by: Rusty Russell
Cc: Tejun Heo
Cc: Tony Luck
Cc: Fenghua Yu
Cc: David Howells
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
16 Mar, 2011
2 commits
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* 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu, x86: Add arch-specific this_cpu_cmpxchg_double() support
percpu: Generic support for this_cpu_cmpxchg_double()
alpha: use L1_CACHE_BYTES for cacheline size in the linker script
percpu: align percpu readmostly subsection to cachelineFix up trivial conflict in arch/x86/kernel/vmlinux.lds.S due to the
percpu alignment having changed ("x86: Reduce back the alignment of the
per-CPU data section") -
…l/git/tip/linux-2.6-tip
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (62 commits)
posix-clocks: Check write permissions in posix syscalls
hrtimer: Remove empty hrtimer_init_hres_timer()
hrtimer: Update hrtimer->state documentation
hrtimer: Update base[CLOCK_BOOTTIME].offset correctly
timers: Export CLOCK_BOOTTIME via the posix timers interface
timers: Add CLOCK_BOOTTIME hrtimer base
time: Extend get_xtime_and_monotonic_offset() to also return sleep
time: Introduce get_monotonic_boottime and ktime_get_boottime
hrtimers: extend hrtimer base code to handle more then 2 clockids
ntp: Remove redundant and incorrect parameter check
mn10300: Switch do_timer() to xtimer_update()
posix clocks: Introduce dynamic clocks
posix-timers: Cleanup namespace
posix-timers: Add support for fd based clocks
x86: Add clock_adjtime for x86
posix-timers: Introduce a syscall for clock tuning.
time: Splitout compat timex accessors
ntp: Add ADJ_SETOFFSET mode bit
time: Introduce timekeeping_inject_offset
posix-timer: Update comment
...Fix up new system-call-related conflicts in
arch/x86/ia32/ia32entry.S
arch/x86/include/asm/unistd_32.h
arch/x86/include/asm/unistd_64.h
arch/x86/kernel/syscall_table_32.S
(name_to_handle_at()/open_by_handle_at() vs clock_adjtime()), and some
due to movement of get_jiffies_64() in:
kernel/time.c
11 Mar, 2011
1 commit
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Change futex_atomic_op_inuser and futex_atomic_cmpxchg_inatomic
prototypes to use u32 types for the futex as this is the data type the
futex core code uses all over the place.Signed-off-by: Michel Lespinasse
Cc: Darren Hart
Cc: Peter Zijlstra
Cc: Matt Turner
Cc: Russell King
Cc: David Howells
Cc: Tony Luck
Cc: Michal Simek
Cc: Ralf Baechle
Cc: "James E.J. Bottomley"
Cc: Benjamin Herrenschmidt
Cc: Martin Schwidefsky
Cc: Paul Mundt
Cc: "David S. Miller"
Cc: Chris Metcalf
Cc: Linus Torvalds
LKML-Reference:
Signed-off-by: Thomas Gleixner
31 Jan, 2011
1 commit
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__set_LEDS() does not need to be protected by xtime_lock.
its used unprotected in other places.[ tglx: Removed stale comment ]
Signed-off-by: Torben Hohn
Cc: hch@infradead.org
Cc: Peter Zijlstra
Cc: johnstul@us.ibm.com
Cc: David Howells
Cc: yong.zhang0@gmail.com
LKML-Reference:
Signed-off-by: Thomas Gleixner
25 Jan, 2011
1 commit
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Currently percpu readmostly subsection may share cachelines with other
percpu subsections which may result in unnecessary cacheline bounce
and performance degradation.This patch adds @cacheline parameter to PERCPU() and PERCPU_VADDR()
linker macros, makes each arch linker scripts specify its cacheline
size and use it to align percpu subsections.This is based on Shaohua's x86 only patch.
Signed-off-by: Tejun Heo
Cc: Shaohua Li
18 Nov, 2010
1 commit
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The big kernel lock has been removed from all these files at some point,
leaving only the #include.Remove this too as a cleanup.
Signed-off-by: Arnd Bergmann
Signed-off-by: Linus Torvalds
28 Oct, 2010
2 commits
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Use new 'regno', 'datap' variables in order to remove duplicated
expressions and unnecessary castings. Alse remove checking @addr
less than 0 because addr is now unsigned.Signed-off-by: Namhyung Kim
Cc: David Howells
Cc: "Daniel K."
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix up the arguments to arch_ptrace() to take account of the fact that
@addr and @data are now unsigned long rather than long as of a preceding
patch in this series.Signed-off-by: Namhyung Kim
Cc:
Acked-by: Roland McGrath
Acked-by: David Howells
Acked-by: Geert Uytterhoeven
Acked-by: David S. Miller
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
21 Sep, 2010
5 commits
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We need to make sure that only the first do_signal() to be handled on
the way out syscall will bother with syscall restarts; additionally, the
check on the "signal has user handler" path had been wrong - compare
with restart prevention in sigreturn()...Signed-off-by: Al Viro
Signed-off-by: David Howells
Signed-off-by: Linus Torvalds -
do_signal() should place the syscall number in gr7, not gr8 when
handling ERESTART_WOULDBLOCK.Signed-off-by: Al Viro
Signed-off-by: David Howells
Signed-off-by: Linus Torvalds -
Use force_sigsegv() rather than force_sig(SIGSEGV, ...) as the former
resets the SEGV handler pointer which will kill the process, rather than
leaving it open to an infinite loop if the SEGV handler itself caused a
SEGV signal.Signed-off-by: Al Viro
Signed-off-by: David Howells
Signed-off-by: Linus Torvalds -
a) sa_handler might be maliciously set to point to kernel memory;
blindly dereferencing it in FDPIC case is a Bad Idea(tm).b) I'm not sure you need that set_fs(USER_DS) there at all, but if you
do, you'd better do it *before* checking the frame you've decided to
use with access_ok(), lest sigaltstack() becomes a convenient
roothole.Signed-off-by: Al Viro
Signed-off-by: David Howells
Signed-off-by: Linus Torvalds -
Reset restart_block.fn on executing a sigreturn such that any currently
pending system call restarts will be forced to return -EINTR.Signed-off-by: Al Viro
Signed-off-by: David Howells
Signed-off-by: Linus Torvalds
18 Aug, 2010
1 commit
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Make do_execve() take a const filename pointer so that kernel_execve() compiles
correctly on ARM:arch/arm/kernel/sys_arm.c:88: warning: passing argument 1 of 'do_execve' discards qualifiers from pointer target type
This also requires the argv and envp arguments to be consted twice, once for
the pointer array and once for the strings the array points to. This is
because do_execve() passes a pointer to the filename (now const) to
copy_strings_kernel(). A simpler alternative would be to cast the filename
pointer in do_execve() when it's passed to copy_strings_kernel().do_execve() may not change any of the strings it is passed as part of the argv
or envp lists as they are some of them in .rodata, so marking these strings as
const should be fine.Further kernel_execve() and sys_execve() need to be changed to match.
This has been test built on x86_64, frv, arm and mips.
Signed-off-by: David Howells
Tested-by: Ralf Baechle
Acked-by: Russell King
Signed-off-by: Linus Torvalds
14 Aug, 2010
1 commit
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Mark arguments to certain system calls as being const where they should be but
aren't. The list includes:(*) The filename arguments of various stat syscalls, execve(), various utimes
syscalls and some mount syscalls.(*) The filename arguments of some syscall helpers relating to the above.
(*) The buffer argument of various write syscalls.
Signed-off-by: David Howells
Acked-by: David S. Miller
Signed-off-by: Linus Torvalds
18 Jun, 2010
1 commit
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Merge reason: Go from -rc1 base to -rc3 base, merge in fixes.
10 Jun, 2010
1 commit
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Reinstate the null behaviour that the in-kernel gdbstub had for the GDB
remote protocol 'p' command (retrieve a single register value) prior to
commit 7ca8b9c0dafd ("frv: extend gdbstub to support more features of
gdb").Before that, the 'p' command just returned an empty reply, which causes
gdb to then go and use the 'g' command. However, since that commit, the
'p' command returns an error string, which causes gdb to abort its
connection to the target.Not all gdb versions are affected, some use try 'g' first, and if that
works, don't bother with 'p', and so don't see the error.Signed-off-by: David Howells
Signed-off-by: Linus Torvalds
09 Jun, 2010
1 commit
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On 64bit, local_t is of size long, and thus we make local64_t an alias.
On 32bit, we fall back to atomic64_t. (architecture can provide optimized
32-bit version)(This new facility is to be used by perf events optimizations.)
Signed-off-by: Peter Zijlstra
Cc: linux-arch@vger.kernel.org
Cc: Andrew Morton
Cc: Linus Torvalds
LKML-Reference:
Signed-off-by: Ingo Molnar
01 Jun, 2010
1 commit
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* 'for-35' of git://repo.or.cz/linux-kbuild: (81 commits)
kbuild: Revert part of e8d400a to resolve a conflict
kbuild: Fix checking of scm-identifier variable
gconfig: add support to show hidden options that have prompts
menuconfig: add support to show hidden options which have prompts
gconfig: remove show_debug option
gconfig: remove dbg_print_ptype() and dbg_print_stype()
kconfig: fix zconfdump()
kconfig: some small fixes
add random binaries to .gitignore
kbuild: Include gen_initramfs_list.sh and the file list in the .d file
kconfig: recalc symbol value before showing search results
.gitignore: ignore *.lzo files
headerdep: perlcritic warning
scripts/Makefile.lib: Align the output of LZO
kbuild: Generate modules.builtin in make modules_install
Revert "kbuild: specify absolute paths for cscope"
kbuild: Do not unnecessarily regenerate modules.builtin
headers_install: use local file handles
headers_check: fix perl warnings
export_report: fix perl warnings
...
28 May, 2010
2 commits
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Signed-off-by: Jan Blunck
Cc: Frederic Weisbecker
Cc: David Howells
Cc: Alexey Dobriyan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The Blackfin/FRV/SuperH guys all have the same exact FDPIC ptrace code in
their arch handlers (since they were probably copied & pasted). Since
these ptrace interfaces are an arch independent aspect of the FDPIC code,
unify them in the common ptrace code so new FDPIC ports don't need to copy
and paste this fundamental stuff yet again.Signed-off-by: Mike Frysinger
Acked-by: Roland McGrath
Acked-by: David Howells
Acked-by: Paul Mundt
Cc: Oleg Nesterov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
