- 16 5月, 2014 1 次提交
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由 Helge Deller 提交于
Ratelimit printing of userspace segfaults and make it runtime configurable via the /proc/sys/debug/exception-trace variable. This should resolve syslog from growing way too fast and thus prevents possible system service attacks. Signed-off-by: NHelge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # 3.13+
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- 20 3月, 2014 1 次提交
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由 AKASHI Takahiro 提交于
Currently AUDITSYSCALL has a long list of architecture depencency: depends on AUDIT && (X86 || PARISC || PPC || S390 || IA64 || UML || SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT) || ALPHA) The purpose of this patch is to replace it with HAVE_ARCH_AUDITSYSCALL for simplicity. Signed-off-by: NAKASHI Takahiro <takahiro.akashi@linaro.org> Acked-by: Will Deacon <will.deacon@arm.com> (arm) Acked-by: Richard Guy Briggs <rgb@redhat.com> (audit) Acked-by: Matt Turner <mattst88@gmail.com> (alpha) Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Signed-off-by: NEric Paris <eparis@redhat.com>
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- 24 1月, 2014 1 次提交
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由 Robert Graffham 提交于
Remove an outdated reference to "most personal computers" having only one CPU, and change the use of "singleprocessor" and "single processor" in CONFIG_SMP's documentation to "uniprocessor" across all arches where that documentation is present. Signed-off-by: NRobert Graffham <psquid@psquid.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 15 11月, 2013 1 次提交
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由 Christoph Hellwig 提交于
We've switched over every architecture that supports SMP to it, so remove the new useless config variable. Signed-off-by: NChristoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.cz> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 08 11月, 2013 1 次提交
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由 Helge Deller 提交于
Implement missing functions for parisc to provide kernel audit feature. Signed-off-by: NHelge Deller <deller@gmx.de>
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- 24 10月, 2013 1 次提交
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由 Mark Salter 提交于
Architectures which support CONFIG_PARPORT_PC should select ARCH_MIGHT_HAVE_PC_PARPORT. Signed-off-by: NMark Salter <msalter@redhat.com> CC: "James E.J. Bottomley" <jejb@parisc-linux.org> CC: Helge Deller <deller@gmx.de> CC: linux-parisc@vger.kernel.org
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- 13 9月, 2013 1 次提交
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由 Martin Schwidefsky 提交于
After the last architecture switched to generic hard irqs the config options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code for !CONFIG_GENERIC_HARDIRQS can be removed. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 05 7月, 2013 1 次提交
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由 Dave Hansen 提交于
Original posting: http://lkml.kernel.org/r/20121214184202.F54094D9@kernel.stglabs.ibm.com Several architectures have similar stack debugging config options. They all pretty much do the same thing, some with slightly differing help text. This patch changes the architectures to instead enable a Kconfig boolean, and then use that boolean in the generic Kconfig.debug to present the actual menu option. This removes a bunch of duplication and adds consistency across arches. Signed-off-by: NDave Hansen <dave@linux.vnet.ibm.com> Reviewed-by: NH. Peter Anvin <hpa@zytor.com> Reviewed-by: NJames Hogan <james.hogan@imgtec.com> Acked-by: Chris Metcalf <cmetcalf@tilera.com> [for tile] Signed-off-by: NDave Hansen <dave.hansen@linux.intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 04 6月, 2013 1 次提交
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由 Stephen Rothwell 提交于
Ever since commit 45f035ab ("CONFIG_HOTPLUG should be always on"), it has been basically impossible to build a kernel with CONFIG_HOTPLUG turned off. Remove all the remaining references to it. Cc: Russell King <linux@arm.linux.org.uk> Cc: Doug Thompson <dougthompson@xmission.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Acked-by: NMauro Carvalho Chehab <mchehab@redhat.com> Acked-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 12 5月, 2013 1 次提交
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由 Helge Deller 提交于
This patch fixes few build issues which were introduced with the last irq stack patch, e.g. the combination of stack overflow check and irq stack. Furthermore we now do proper locking and change the irq bh handler to use the irq stack as well. In /proc/interrupts one now can monitor how huge the irq stack has grown and how often it was preferred over the kernel stack. IRQ stacks are now enabled by default just to make sure that we not overflow the kernel stack by accident. Signed-off-by: NHelge Deller <deller@gmx.de>
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- 08 5月, 2013 1 次提交
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由 Helge Deller 提交于
Default kernel stack size on parisc is 16k. During tests we found that the kernel stack can easily grow beyond 13k, which leaves 3k left for irq processing. This patch adds the possibility to activate an additional stack of 16k per CPU which is being used during irq processing. This implementation does not yet uses this irq stack for the irq bh handler. The assembler code for call_on_stack was heavily cleaned up by John David Anglin. CC: John David Anglin <dave.anglin@bell.net> Signed-off-by: NHelge Deller <deller@gmx.de>
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- 07 5月, 2013 1 次提交
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由 Helge Deller 提交于
Signed-off-by: NHelge Deller <deller@gmx.de>
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- 01 5月, 2013 1 次提交
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由 Stephen Boyd 提交于
The help text for this config is duplicated across the x86, parisc, and s390 Kconfig.debug files. Arnd Bergman noted that the help text was slightly misleading and should be fixed to state that enabling this option isn't a problem when using pre 4.4 gcc. To simplify the rewording, consolidate the text into lib/Kconfig.debug and modify it there to be more explicit about when you should say N to this config. Also, make the text a bit more generic by stating that this option enables compile time checks so we can cover architectures which emit warnings vs. ones which emit errors. The details of how an architecture decided to implement the checks isn't as important as the concept of compile time checking of copy_from_user() calls. While we're doing this, remove all the copy_from_user_overflow() code that's duplicated many times and place it into lib/ so that any architecture supporting this option can get the function for free. Signed-off-by: NStephen Boyd <sboyd@codeaurora.org> Acked-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NIngo Molnar <mingo@kernel.org> Acked-by: NH. Peter Anvin <hpa@zytor.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Acked-by: NHelge Deller <deller@gmx.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 17 4月, 2013 1 次提交
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由 Thomas Gleixner 提交于
All archs are converted over. Remove the config switch and the fallback code. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 08 4月, 2013 1 次提交
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Reviewed-by: NCc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Link: http://lkml.kernel.org/r/20130321215234.956305981@linutronix.deSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 13 3月, 2013 1 次提交
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由 Stephen Rothwell 提交于
In commit 887cbce0 ("arch Kconfig: centralise ARCH_NO_VIRT_TO_BUS") I introduced the config sybmol HAVE_VIRT_TO_BUS and selected that where needed. I am not sure what I was thinking. Instead, just directly select VIRT_TO_BUS where it is needed. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 03 3月, 2013 1 次提交
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由 Helge Deller 提交于
Avoid the following warning when configuring the kernel for parisc: warning: (LOCKDEP && FAULT_INJECTION_STACKTRACE_FILTER && LATENCYTOP && KMEMCHECK) selects FRAME_POINTER \ which has unmet direct dependencies (DEBUG_KERNEL && (CRIS || M68K || FRV || UML || AVR32 || SUPERH || \ BLACKFIN || MN10300) || ARCH_WANT_FRAME_POINTERS) Signed-off-by: NHelge Deller <deller@gmx.de>
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- 28 2月, 2013 1 次提交
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由 Stephen Rothwell 提交于
Change it to CONFIG_HAVE_VIRT_TO_BUS and set it in all architecures that already provide virt_to_bus(). Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Reviewed-by: NJames Hogan <james.hogan@imgtec.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: H Hartley Sweeten <hartleys@visionengravers.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 21 2月, 2013 2 次提交
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由 Helge Deller 提交于
Switch over to use the existing compat_* implementation for msgrcv() and msgsnd(). Existing code was even partly buggy since it returned on some paths different error codes than the standard. Signed-off-by: NHelge Deller <deller@gmx.de>
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由 Helge Deller 提交于
When building a 64bit kernel which includes all necessary drivers and filesystems the vmlinux kernel often gets so huge, that the linker won't be able to resolve the branch stubs. This patch overcomes this limit by providing an option to compile the kernel with the -mlong-calls compiler option. Signed-off-by: NHelge Deller <deller@gmx.de>
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- 16 2月, 2013 1 次提交
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由 Vineet Gupta 提交于
PARISC defines /proc/sys/kernel/unaligned-trap to runtime toggle unaligned access emulation. The exact mechanics of enablig/disabling are still arch specific, we can make the sysctl usable by other arches. Signed-off-by: NVineet Gupta <vgupta@synopsys.com> Acked-by: NHelge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Serge Hallyn <serge.hallyn@canonical.com>
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- 14 2月, 2013 1 次提交
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由 Al Viro 提交于
__ARCH_WANT_SYS_RT_SIGACTION, __ARCH_WANT_SYS_RT_SIGSUSPEND, __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND, __ARCH_WANT_COMPAT_SYS_SCHED_RR_GET_INTERVAL - not used anymore CONFIG_GENERIC_{SIGALTSTACK,COMPAT_RT_SIG{ACTION,QUEUEINFO,PENDING,PROCMASK}} - can be assumed always set.
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- 05 2月, 2013 1 次提交
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由 James Hogan 提交于
The IRQ_PER_CPU Kconfig symbol was removed in the following commit: Commit 6a58fb3b ("genirq: Remove CONFIG_IRQ_PER_CPU") merged in v2.6.39-rc1. But IRQ_PER_CPU wasn't removed from any of the architecture Kconfig files where it was defined or selected. It's completely unused so remove the remaining references. Signed-off-by: NJames Hogan <james.hogan@imgtec.com> Cc: <uclinux-dist-devel@blackfin.uclinux.org> Cc: <linux-mips@linux-mips.org> Cc: <linuxppc-dev@lists.ozlabs.org> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Fenghua Yu <fenghua.yu@intel.com> Acked-by: NRalf Baechle <ralf@linux-mips.org> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Acked-by: NPaul Mundt <lethal@linux-sh.org> Acked-by: NTony Luck <tony.luck@intel.com> Acked-by: NRichard Kuo <rkuo@codeaurora.org> Link: http://lkml.kernel.org/r/1359972583-17134-1-git-send-email-james.hogan@imgtec.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 04 2月, 2013 5 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 22 1月, 2013 1 次提交
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由 Kees Cook 提交于
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it from any "depends on" lines in Kconfigs. CC: "James E.J. Bottomley" <jejb@parisc-linux.org> CC: Helge Deller <deller@gmx.de> Signed-off-by: NKees Cook <keescook@chromium.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 19 1月, 2013 1 次提交
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由 Joe Millenbach 提交于
The option allows you to remove TTY and compile without errors. This saves space on systems that won't support TTY interfaces anyway. bloat-o-meter output is below. The bulk of this patch consists of Kconfig changes adding "depends on TTY" to various serial devices and similar drivers that require the TTY layer. Ideally, these dependencies would occur on a common intermediate symbol such as SERIO, but most drivers "select SERIO" rather than "depends on SERIO", and "select" does not respect dependencies. bloat-o-meter output comparing our previous minimal to new minimal by removing TTY. The list is filtered to not show removed entries with awk '$3 != "-"' as the list was very long. add/remove: 0/226 grow/shrink: 2/14 up/down: 6/-35356 (-35350) function old new delta chr_dev_init 166 170 +4 allow_signal 80 82 +2 static.__warned 143 142 -1 disallow_signal 63 62 -1 __set_special_pids 95 94 -1 unregister_console 126 121 -5 start_kernel 546 541 -5 register_console 593 588 -5 copy_from_user 45 40 -5 sys_setsid 128 120 -8 sys_vhangup 32 19 -13 do_exit 1543 1526 -17 bitmap_zero 60 40 -20 arch_local_irq_save 137 117 -20 release_task 674 652 -22 static.spin_unlock_irqrestore 308 260 -48 Signed-off-by: NJoe Millenbach <jmillenbach@gmail.com> Reviewed-by: NJamey Sharp <jamey@minilop.net> Reviewed-by: NJosh Triplett <josh@joshtriplett.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 20 12月, 2012 1 次提交
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由 Al Viro 提交于
All architectures have CONFIG_GENERIC_KERNEL_THREAD CONFIG_GENERIC_KERNEL_EXECVE __ARCH_WANT_SYS_EXECVE None of them have __ARCH_WANT_KERNEL_EXECVE and there are only two callers of kernel_execve() (which is a trivial wrapper for do_execve() now) left. Kill the conditionals and make both callers use do_execve(). Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 29 11月, 2012 1 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 18 11月, 2012 1 次提交
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由 Frederic Weisbecker 提交于
irq work can run on any arch even without IPI support because of the hook on update_process_times(). So lets remove HAVE_IRQ_WORK because it doesn't reflect any backend requirement. Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Acked-by: NSteven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
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- 22 10月, 2012 1 次提交
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由 Al Viro 提交于
ACKed-by: NJames Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 15 10月, 2012 1 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 06 10月, 2012 1 次提交
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由 Andi Kleen 提交于
The PA-RISC tool chain seems to have some problem with correct read/write attributes on sections. This causes problems when the const sections are fixed up for other architecture to only contain truly read-only data. Disable const sections for PA-RISC This can cause a bit of noise with modpost. Signed-off-by: NAndi Kleen <ak@linux.intel.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Acked-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 28 9月, 2012 1 次提交
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由 David Howells 提交于
Use the mapping of Elf_[SPE]hdr, Elf_Addr, Elf_Sym, Elf_Dyn, Elf_Rel/Rela, ELF_R_TYPE() and ELF_R_SYM() to either the 32-bit version or the 64-bit version into asm-generic/module.h for all arches bar MIPS. Also, use the generic definition mod_arch_specific where possible. To this end, I've defined three new config bools: (*) HAVE_MOD_ARCH_SPECIFIC Arches define this if they don't want to use the empty generic mod_arch_specific struct. (*) MODULES_USE_ELF_RELA Arches define this if their modules can contain RELA records. This causes the Elf_Rela mapping to be emitted and allows apply_relocate_add() to be defined by the arch rather than have the core emit an error message. (*) MODULES_USE_ELF_REL Arches define this if their modules can contain REL records. This causes the Elf_Rel mapping to be emitted and allows apply_relocate() to be defined by the arch rather than have the core emit an error message. Note that it is possible to allow both REL and RELA records: m68k and mips are two arches that do this. With this, some arch asm/module.h files can be deleted entirely and replaced with a generic-y marker in the arch Kbuild file. Additionally, I have removed the bits from m32r and score that handle the unsupported type of relocation record as that's now handled centrally. Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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- 31 5月, 2012 1 次提交
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由 James Bottomley 提交于
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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- 05 5月, 2012 2 次提交
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由 Thomas Gleixner 提交于
Now that all archs except ia64 are converted, replace the config and let the ia64 select CONFIG_ARCH_INIT_TASK Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20120503085035.867948914@linutronix.de
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由 Thomas Gleixner 提交于
Same code, except: The alignment of init_thread_union is handled via the linker script, so no point to have it with the data structure. The extra asm(".data") looks like a leftover from an asm to C conversion and is pointless. Use the generic version. Move the page table data to parisc/mm/init.c and get rid of parisc/../init_task.c Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Link: http://lkml.kernel.org/r/20120503085035.150896946@linutronix.de
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