- 04 2月, 2013 10 次提交
-
-
由 Al Viro 提交于
it's a copy of compat_sys_open() Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
note that due to historical accident we do *not* directly take generic versions - need to check and invert the sign of signal number first. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
note that while struct compat_sigaction is the generic one, syscall itself *isn't* - different arguments. IOW, CONFIG_ODD_RT_SIGACTION stays. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Switch from __ARCH_WANT_SYS_RT_SIGACTION to opposite (!CONFIG_ODD_RT_SIGACTION); the only two architectures that need it are alpha and sparc. The reason for use of CONFIG_... instead of __ARCH_... is that it's needed only kernel-side and doing it that way avoids a mess with include order on many architectures. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
- 13 1月, 2013 1 次提交
-
-
由 Sam Ravnborg 提交于
__devinit, __devexit annotations are nops - so drop them. Likewise for __devexit_p. Adjusted alignment of arguments when needed. Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 04 1月, 2013 1 次提交
-
-
由 Greg Kroah-Hartman 提交于
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
-
- 29 12月, 2012 1 次提交
-
-
由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 18 12月, 2012 1 次提交
-
-
由 Catalin Marinas 提交于
This function is used by sparc, powerpc tile and arm64 for compat support. The patch adds a generic implementation with a wrapper for PowerPC to do the u32->int sign extension. The reason for a single patch covering powerpc, tile, sparc and arm64 is to keep it bisectable, otherwise kernel building may fail with mismatched function declarations. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Acked-by: Chris Metcalf <cmetcalf@tilera.com> [for tile] Acked-by: NDavid S. Miller <davem@davemloft.net> Acked-by: NArnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 14 12月, 2012 1 次提交
-
-
由 Rusty Russell 提交于
In commit d0a21265 David Rientjes unified various archs' module_alloc implementation (including x86) and removed the graduitous shortcut for size == 0. Then, in commit de7d2b56, Joe Perches added a warning for zero-length vmallocs, which can happen without kallsyms on modules with no init sections (eg. zlib_deflate). Fix this once and for all; the module code has to handle zero length anyway, so get it right at the caller and remove the now-gratuitous checks within the arch-specific module_alloc implementations. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42608Reported-by: NConrad Kostecki <ConiKost@gmx.de> Cc: David Rientjes <rientjes@google.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
-
- 12 12月, 2012 3 次提交
-
-
由 Andrew Morton 提交于
Consistently spell this word across arch/sparc/mm and arch/sparc/kernel. Acked-by: NDavid Miller <davem@davemloft.net> Cc: Michel Lespinasse <walken@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Michel Lespinasse 提交于
Update the sparc64 arch_get_unmapped_area[_topdown] functions to make use of vm_unmapped_area() instead of implementing a brute force search. [akpm@linux-foundation.org: remove now-unused COLOUR_ALIGN_DOWN()] Signed-off-by: NMichel Lespinasse <walken@google.com> Reviewed-by: NRik van Riel <riel@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Michel Lespinasse 提交于
Update the sparc32 arch_get_unmapped_area function to make use of vm_unmapped_area() instead of implementing a brute force search. [akpm@linux-foundation.org: fix build] [akpm@linux-foundation.org: remove now-unused COLOUR_ALIGN()] Signed-off-by: NMichel Lespinasse <walken@google.com> Reviewed-by: NRik van Riel <riel@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mundt <lethal@linux-sh.org> Acked-by: N"David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 04 12月, 2012 1 次提交
-
-
由 David S. Miller 提交于
Reported-by: NAl Viro <viro@ZenIV.linux.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 29 11月, 2012 2 次提交
-
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
- 19 11月, 2012 1 次提交
-
-
由 Al Viro 提交于
If a signal handler is executed on altstack and another signal comes, we will end up with rt_sigreturn() on return from the second handler getting -EPERM from do_sigaltstack(). It's perfectly OK, since we are not asking to change the settings; in fact, they couldn't have been changed during the second handler execution exactly because we'd been on altstack all along. 64bit sigreturn on sparc treats any error from do_sigaltstack() as "SIGSEGV now"; we need to switch to the same semantics we are using on other architectures. Cc: stable@vger.kernel.org Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 17 11月, 2012 1 次提交
-
-
由 Grant Likely 提交于
Neither of these should ever be changed once set. Make them const and fix up the users that try to modify it in-place. In one case kmalloc+memcpy is replaced with kstrdup() to avoid modifying the string. Build tested with defconfigs on ARM, PowerPC, Sparc, MIPS, x86 among others. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NDavid S. Miller <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Julian Calaby <julian.calaby@gmail.com>
-
- 10 11月, 2012 1 次提交
-
-
由 Andreas Larsson 提交于
If an irq is being unlinked concurrently with leon_handle_ext_irq, irq_map[eirq] might be null in leon_handle_ext_irq. Make sure that this is not dereferenced. Signed-off-by: NAndreas Larsson <andreas@gaisler.com> Acked-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 29 10月, 2012 2 次提交
-
-
由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David S. Miller 提交于
Document what's going on in asm/backoff.h with a large and descriptive comment. Refer to it above the cpu_relax() definition in asm/processor_64.h Rename the pause patching section to have "3insn" in it's name like the other patching sections do. Based upon feedback from Sam Ravnborg. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 28 10月, 2012 1 次提交
-
-
由 David S. Miller 提交于
In atomic backoff and cpu_relax(), use the pause instruction found on SPARC-T4 and later. It makes the cpu strand unselectable for the given number of cycles, unless an intervening disrupting trap occurs. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 27 10月, 2012 1 次提交
-
-
由 David S. Miller 提交于
The Montgomery Multiply, Montgomery Square, and Multiple-Precision Multiply instructions work by loading a combination of the floating point and multiple register windows worth of integer registers with the inputs. These values are 64-bit. But for 32-bit userland processes we only save the low 32-bits of each integer register during a register spill. This is because the register window save area is in the user stack and has a fixed layout. Therefore, the only way to use these instruction in 32-bit mode is to perform the following sequence: 1) Load the top-32bits of a choosen integer register with a sentinel, say "-1". This will be in the outer-most register window. The idea is that we're trying to see if the outer-most register window gets spilled, and thus the 64-bit values were truncated. 2) Load all the inputs for the montmul/montsqr/mpmul instruction, down to the inner-most register window. 3) Execute the opcode. 4) Traverse back up to the outer-most register window. 5) Check the sentinel, if it's still "-1" store the results. Otherwise retry the entire sequence. This retry is extremely troublesome. If you're just unlucky and an interrupt or other trap happens, it'll push that outer-most window to the stack and clear the sentinel when we restore it. We could retry forever and never make forward progress if interrupts arrive at a fast enough rate (consider perf events as one example). So we have do limited retries and fallback to software which is extremely non-deterministic. Luckily it's very straightforward to provide a mechanism to let 32-bit applications use a 64-bit stack. Stacks in 64-bit mode are biased by 2047 bytes, which means that the lowest bit is set in the actual %sp register value. So if we see bit zero set in a 32-bit application's stack we treat it like a 64-bit stack. Runtime detection of such a facility is tricky, and cumbersome at best. For example, just trying to use a biased stack and seeing if it works is hard to recover from (the signal handler will need to use an alt stack, plus something along the lines of longjmp). Therefore, we add a system call to report a bitmask of arch specific features like this in a cheap and less hairy way. With help from Andy Polyakov. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 17 10月, 2012 7 次提交
-
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Time to end that depravity, let's bury the body. It's been 15 years, for crying out loud... Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
We still have wrappers, but nowhere near as scary as they used to be. I'm not sure how necessary that flushw is now, TBH... Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 David S. Miller 提交于
There was a serious disconnect in the logic happening in sparc_pmu_disable_event() vs. sparc_pmu_enable_event(). Event disable is implemented by programming a NOP event into the PCR. However, event enable was not reversing this operation. Instead, it was setting the User/Priv/Hypervisor trace enable bits. That's not sparc_pmu_enable_event()'s job, that's what sparc_pmu_enable() and sparc_pmu_disable() do . The intent of sparc_pmu_enable_event() is clear, since it first clear out the event type encoding field. So fix this by OR'ing in the event encoding rather than the trace enable bits. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 15 10月, 2012 5 次提交
-
-
由 David S. Miller 提交于
If the MM is not active, only report the top-level PC. Do not try to access the address space. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Al Viro 提交于
Move that sucker to just before TI_FPDEPTH and replace stb with sth in etrap_save(). Take current_ds to its old place, so that we don't push wsaved into TI_... flags. That allows to lose clearing syscall_noerror on return from syscall. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-