- 06 9月, 2013 2 次提交
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由 Geert Uytterhoeven 提交于
ERROR: "flush_ptrace_access" [drivers/staging/lustre/lustre/libcfs/libcfs.ko] undefined! Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Kirill Tkhai 提交于
The functions __down_read __down_read_trylock __down_write __down_write_trylock __up_read __up_write __downgrade_write are implemented inline, so remove corresponding EXPORT_SYMBOLs (They lead to compile errors on RT kernel). Signed-off-by: NKirill Tkhai <tkhai@yandex.ru> CC: David Miller <davem@davemloft.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 9月, 2013 4 次提交
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由 Paul Mackerras 提交于
Commit 74e400ce ("powerpc: Rework setting up H/FSCR bit definitions") ended up with incorrect bit numbers for FSCR_PM_LG and FSCR_BHRB_LG. This fixes them. Signed-off-by: NPaul Mackerras <paulus@samba.org> Acked-by: NMichael Neuling <mikey@neuling.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Paul Mackerras 提交于
Commit 24ec2125f3 ("powerpc/xmon: Use cpumask iterator to avoid warning") replaced a loop from 0 to NR_CPUS-1 with a for_each_possible_cpu() loop, which means that if the last possible cpu is in xmon, we print the wrong value for the end of the range. For example, if 4 cpus are possible, NR_CPUS is 128, and all cpus are in xmon, we print "0-7f" rather than "0-3". The code also assumes that the set of possible cpus is contiguous, which may not necessarily be true. This fixes the code to check explicitly for contiguity, and to print the ending value correctly. Signed-off-by: NPaul Mackerras <paulus@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Luck, Tony 提交于
All the cool kids are doing this, join in the fun. Signed-off-by: NTony Luck <tony.luck@intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 H. Peter Anvin 提交于
DEF_NATIVE() is defined in paravirt_types.h, remove duplicate definition in paravirt.c Reported-by: NLinus Torvalds <torvalds@linux-foundation.org> Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com> Cc: Andi Kleen <ak@linux.kernel.org> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Link: http://lkml.kernel.org/r/CA%2B55aFxVv==DC0JdS87V%2BcPr-twN%2BTujYg5XmgHOjJOAkZ4xwQ@mail.gmail.com
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- 04 9月, 2013 7 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
same story as with oprofilefs_mkdir() Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
it's always equal to ->d_sb of the second argument (parent dentry), due to either being literally that, or ->d_sb of parent's parent. 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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- 03 9月, 2013 2 次提交
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由 Laurent Pinchart 提交于
Replace the numerical polarity flags with the PWM_POLARITY_INVERTED symbolic constant. Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: NStephen Warren <swarren@nvidia.com> Signed-off-by: NThierry Reding <thierry.reding@gmail.com>
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由 Linus Torvalds 提交于
Instead of taking the spinlock, the lockless versions atomically check that the lock is not taken, and do the reference count update using a cmpxchg() loop. This is semantically identical to doing the reference count update protected by the lock, but avoids the "wait for lock" contention that you get when accesses to the reference count are contended. Note that a "lockref" is absolutely _not_ equivalent to an atomic_t. Even when the lockref reference counts are updated atomically with cmpxchg, the fact that they also verify the state of the spinlock means that the lockless updates can never happen while somebody else holds the spinlock. So while "lockref_put_or_lock()" looks a lot like just another name for "atomic_dec_and_lock()", and both optimize to lockless updates, they are fundamentally different: the decrement done by atomic_dec_and_lock() is truly independent of any lock (as long as it doesn't decrement to zero), so a locked region can still see the count change. The lockref structure, in contrast, really is a *locked* reference count. If you hold the spinlock, the reference count will be stable and you can modify the reference count without using atomics, because even the lockless updates will see and respect the state of the lock. In order to enable the cmpxchg lockless code, the architecture needs to do three things: (1) Make sure that the "arch_spinlock_t" and an "unsigned int" can fit in an aligned u64, and have a "cmpxchg()" implementation that works on such a u64 data type. (2) define a helper function to test for a spinlock being unlocked ("arch_spin_value_unlocked()") (3) select the "ARCH_USE_CMPXCHG_LOCKREF" config variable in its Kconfig file. This enables it for x86-64 (but not 32-bit, we'd need to make sure cmpxchg() turns into the proper cmpxchg8b in order to enable it for 32-bit mode). Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 02 9月, 2013 11 次提交
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由 Haojian Zhuang 提交于
Support UART0 debug ll on Hisilicon Hi3620 SoC & Hi3716 SoC. Signed-off-by: NHaojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Will Deacon 提交于
Now that we support a timer-backed delay loop, I'm quickly getting sick and tired of people complaining that their beloved bogomips value has decreased. You know who you are! This patch removes the bogomips line from /proc/cpuinfo, based on the reasoning that any program parsing this is already broken and, as such, won't be further broken if the field is removed. Acked-by: NNicolas Pitre <nico@linaro.org> Acked-by: NMarc Zyngier <marc.zyngier@arm.com> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Douglas Anderson 提交于
It appears that gcc may put some code in ".text.unlikely" or ".text.hot" sections. Right now those aren't accounted for in unwind tables. Add them. I found some docs about this at: http://gcc.gnu.org/onlinedocs/gcc-4.6.2/gcc.pdf Without this, if you have slub_debug turned on, you can get messages that look like this: unwind: Index not found 7f008c50 Signed-off-by: NDoug Anderson <dianders@chromium.org> Acked-by: NMike Frysinger <vapier@gentoo.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Uwe Kleine-König 提交于
The newly introduced function is to be used as .restart callback for ARMv7-M machines. The used register is architecturally defined, so it should work for all M-class machines. Acked-by: NJonathan Austin <jonathan.austin@arm.com> Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Rob Herring 提交于
Section entries are 2MB on LPAE, so the DEBUG_LL virtual address must have the same offset in the 2MB section as the physical address. This fixes async external aborts when DEBUG_LL is enabled on Midway. Signed-off-by: NRob Herring <rob.herring@calxeda.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Will Deacon 提交于
On Cortex-A15 CPUs up to and including r0p4, in certain rare sequences of code, the loop buffer may deliver incorrect instructions. This workaround disables the loop buffer to avoid the erratum. Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Joe Perches 提交于
Use the convenience function instead of __GFP_ZERO. Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NPeter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/f58599ae1a8d7b32d37e9cf283e95fba6452f7f6.1377809875.git.joe@perches.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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由 Yan, Zheng 提交于
Compared to old atom, Silvermont has offcore and has more events that support PEBS. Signed-off-by: NYan, Zheng <zheng.z.yan@intel.com> Reviewed-by: NStephane Eranian <eranian@google.com> Signed-off-by: NPeter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1374138144-17278-2-git-send-email-zheng.z.yan@intel.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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由 Yan, Zheng 提交于
Silvermont (22nm Atom) has two offcore response configuration MSRs, unlike other Intel CPU, its event code for MSR_OFFCORE_RSP_1 is 0x02b7. To avoid complicating intel_fixup_er(), use INTEL_UEVENT_EXTRA_REG to define MSR_OFFCORE_RSP_X. So intel_fixup_er() can find the event code for OFFCORE_RSP_N by x86_pmu.extra_regs[N].event. Signed-off-by: NYan, Zheng <zheng.z.yan@intel.com> Signed-off-by: NPeter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1374138144-17278-1-git-send-email-zheng.z.yan@intel.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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由 Al Viro 提交于
For performance reasons, when SMAP is in use, SMAP is left open for an entire put_user_try { ... } put_user_catch(); block, however, calling __put_user() in the middle of that block will close SMAP as the STAC..CLAC constructs intentionally do not nest. Furthermore, using __put_user() rather than put_user_ex() here is bad for performance. Thus, introduce new [compat_]save_altstack_ex() helpers that replace __[compat_]save_altstack() for x86, being currently the only architecture which supports put_user_try { ... } put_user_catch(). Reported-by: NH. Peter Anvin <hpa@linux.intel.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com> Cc: <stable@vger.kernel.org> # v3.8+ Link: http://lkml.kernel.org/n/tip-es5p6y64if71k8p5u08agv9n@git.kernel.org
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由 H. Peter Anvin 提交于
Add SMAP annotations to csum_partial_copy_to/from_user(). These functions legitimately access user space and thus need to set the AC flag. TODO: add explicit checks that the side with the kernel space pointer really points into kernel space. Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com> Link: http://lkml.kernel.org/n/tip-2aps0u00eer658fd5xyanan7@git.kernel.org Cc: <stable@vger.kernel.org> # v3.7+
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- 31 8月, 2013 4 次提交
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由 Christoffer Dall 提交于
The panic strings are hard to read and on narrow terminals some characters are simply truncated off the panic message. Make is slightly prettier with a newline in the Hyp panic strings. Acked-by: NMarc Zyngier <marc.zyngier@arm.com> Signed-off-by: NChristoffer Dall <christoffer.dall@linaro.org>
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由 Christoffer Dall 提交于
Compilers before 4.6 do not behave well with unnamed fields in structure initializers and therefore produces build errors: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10676 By refering to the unnamed union using braces, both older and newer compilers produce the same result. Acked-by: NMarc Zyngier <marc.zyngier@arm.com> Reported-by: NRussell King <linux@arm.linux.org.uk> Tested-by: NRussell King <linux@arm.linux.org.uk> Signed-off-by: NChristoffer Dall <christoffer.dall@linaro.org>
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由 Christoffer Dall 提交于
The tracepoint for kvm_guest_fault was extremely long, make it a slightly bit shorter. Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: NMarc Zyngier <marc.zyngier@arm.com> Signed-off-by: NChristoffer Dall <christoffer.dall@linaro.org>
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由 Christoffer Dall 提交于
THe kvm_set_pte function was actually assigning the entire struct to the structure member, which should work because the structure only has that one member, but it is still not very nice. Acked-by: NMarc Zyngier <marc.zyngier@arm.com> Signed-off-by: NChristoffer Dall <christoffer.dall@linaro.org>
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- 30 8月, 2013 10 次提交
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由 Sebastian Ott 提交于
The bitmap used to mark dma mappings can be quite large on systems with huge amounts of memory. Use virtual memory for this bitmap. Suggested-by: NAlexander Schmidt <alexschm@de.ibm.com> Reviewed-by: NGerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Function handles may change while the system was in hibernation use list pci functions and update the function handles. Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
In rare situations a PCI function can report a busy condition when we issue the modify pci function command. A temporary busy condition can exceed 1 second but not 2 seconds. Increase the time until we report an error to 2 seconds. Also increase the time we sleep between the retries to reduce the load in this case. Suggested-by: NGerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
List pci functions is used to query and iterate over pci functions. This function currently has 2 users - initial device discovery and rescan after a machine check. Instead of having a multipurpose function pass a callback which gets called for each pci function. Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Some functions that do arch specific resume actions are called directly from swsusp_asm64.S . Before we add another function call provide a generic s390_early_resume function which can be used for this purpose. Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Add an arch specific attribute to recover a pci function from an error state or config space blockage. Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Use pci_claim_resource to find and request bus ressources in pcibios_add_device. Also move some (de)initialization stuff to pcibios_enable_device/pcibios_disable_device. Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Convert s390' pci hotplug to be builtin only, with no module option. Suggested-by: NBjorn Helgaas <bhelgaas@google.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Josh Wu 提交于
For at91 boards, there are different IPs for adc. Different IPs has different STARTUP & PRESCAL mask in ADC_MR. Signed-off-by: NJosh Wu <josh.wu@atmel.com> Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: NJonathan Cameron <jic23@kernel.org>
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由 Josh Wu 提交于
As use the multiple compatible string, we can remove hardware register in dt. CC: devicetree@vger.kernel.org Signed-off-by: NJosh Wu <josh.wu@atmel.com> Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: NJonathan Cameron <jic23@kernel.org>
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