Re: [PATCH] security: Use || instead of | for boolean expressions

On 6/2/16 10:13 PM, Serge E. Hallyn wrote: On Wed, Jun 01, 2016 at 02:03:02PM +0800, Rui Teng wrote: Sparse spits out the following warning: security/commoncap.c:989:41: warning: dubious: !x | y Bitwise and logical are equivalent here, but logical was intended. Replacing the bit-wise

[PATCH] security: Use || instead of | for boolean expressions

. Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- security/commoncap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/security/commoncap.c b/security/commoncap.c index e7fadde..8f6fb24 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -976,7

Re: [RFC 6/9] powerpc/hugetlb: Enable ARCH_WANT_GENERAL_HUGETLB for BOOK3S 64K

On 3/9/16 8:10 PM, Anshuman Khandual wrote: This enables ARCH_WANT_GENERAL_HUGETLB for BOOK3S 64K in Kconfig. It also implements a new function 'pte_huge' which is required by function 'huge_pte_alloc' from generic VM. Existing BOOK3S 64K specific functions 'huge_pte_alloc' and 'huge_pte_offset'

Re: [PATCH v2 2/6] mm/cma: introduce new zone, ZONE_CMA

On 4/25/16 1:21 PM, js1...@gmail.com wrote: From: Joonsoo Kim Attached cover-letter: This series try to solve problems of current CMA implementation. CMA is introduced to provide physically contiguous pages at runtime without exclusive reserved memory area. But,

[PATCH] drivers/input: Macros with complex values should be enclosed in parentheses

eported by scripts/checkpatch.pl. Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- drivers/input/keyboard/twl4030_keypad.c | 11 ++- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_

Re: [PATCH v2 1/6] mm/page_alloc: recalculate some of zone threshold when on/offline memory

On 4/25/16 1:21 PM, js1...@gmail.com wrote: From: Joonsoo Kim Some of zone threshold depends on number of managed pages in the zone. When memory is going on/offline, it can be changed and we need to adjust them. This patch add recalculation to appropriate places and

[PATCH] [PATCH] [V3] powerpc/mm: Add validation for platform reserved memory ranges

ed by the kernel for all supported memory contexts. This helps prevent the possibility of getting return codes similar to H_RESOURCE for H_PROTECT hcalls for conflicting HPTE entries. Signed-off-by: Anshuman Khandual <khand...@linux.vnet.ibm.com> Signed-off-by: Rui Teng <rui.t...@linux.v

[PATCH] perf: Fix errors reported by checkpatch.pl scripts

Clear all the errors and also some warnings reported by checkpatch.pl scripts for file tools/perf/util/header.c And replace __attribute__((weak)) to __weak definition from Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- tools/perf/util/header.

[PATCH 2/2] perf: Use __weak definition from

Replace __attribute__((weak)) to __weak definition Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- tools/perf/util/header.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 8d76d55..576addd

[PATCH 1/2] perf: Fix errors reported by checkpatch.pl scripts

Clear all the errors and also some warnings reported by checkpatch.pl scripts for file tools/perf/util/header.c Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- tools/perf/util/header.c | 60 ++-- 1 file changed, 33 insertions(+), 27 del

[PATCH] perf: Skip running the feature tests for 'make install-doc'

'. Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- tools/perf/Makefile.perf | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 2d90875..9c1dac6 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefil

Re: [PATCH] powerpc/mm: fix a hardcode on memory boundary checking

On 31/01/2017 5:11 PM, Michael Ellerman wrote: Rui Teng <rui.t...@linux.vnet.ibm.com> writes: The offset of hugepage block will not be 16G, if the expected page is more than one. Calculate the totol size instead of the hardcode value. I assume you found this by code insp

[PATCH] powerpc: Remove suspect CONFIG_PPC_BOOK3E #ifdefs in nohash/64/pgtable.h

There are three #ifdef CONFIG_PPC_BOOK3E sections in nohash/64/pgtable.h. And there should be no configurations possible which use nohash/64/pgtable.h but don't also enable CONFIG_PPC_BOOK3E. Suggested-by: Michael Ellerman <m...@ellerman.id.au> Signed-off-by: Rui Teng <rui.t...@linux.vne

[PATCH] [V3] powerpc/mm: Add validation for platform reserved memory ranges

ed by the kernel for all supported memory contexts. This helps prevent the possibility of getting return codes similar to H_RESOURCE for H_PROTECT hcalls for conflicting HPTE entries. Signed-off-by: Anshuman Khandual <khand...@linux.vnet.ibm.com> Signed-off-by: Rui Teng <rui.t...@linux.v

Re: [PATCH] powerpc: Clean up tm_abort duplication in hash_utils_64.c

On 9/1/16 11:46 PM, Thiago Jung Bauermann wrote: Am Freitag, 26 August 2016, 11:50:10 schrieb Rui Teng: The same logic appears twice and should probably be pulled out into a function. Suggested-by: Michael Ellerman <m...@ellerman.id.au> Signed-off-by: Rui Teng <rui.t...@linux.vne

[PATCH] [v2] powerpc: Clean up tm_abort duplication in hash_utils_64.c

The same logic appears twice and should probably be pulled out into a function. Suggested-by: Michael Ellerman <m...@ellerman.id.au> Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- Changes in V2: - Change function to static and inline - Use #else block to define an empty s

Re: [PATCH] memory-hotplug: Fix bad area access on dissolve_free_huge_pages()

On 9/14/16 1:32 AM, Dave Hansen wrote: On 09/13/2016 01:39 AM, Rui Teng wrote: diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 87e11d8..64b5f81 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1442,7 +1442,7 @@ static int free_pool_huge_page(struct hstate *h, nodemask_t *nodes_allowed, static

[PATCH] memory-hotplug: Fix bad area access on dissolve_free_huge_pages()

tation fault Reported-by: Santhosh G <santh...@in.ibm.com> Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- mm/hugetlb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 87e11d8..64b5f81 100644 --- a/mm/hugetlb.c +++ b/mm/hu

Re: [RFC] mm: Change the data type of huge page size from unsigned long to u64

On 9/13/16 5:32 PM, Kirill A. Shutemov wrote: On Tue, Sep 13, 2016 at 05:26:05PM +0800, Rui Teng wrote: The huge page size could be 16G(0x4) on ppc64 architecture, and it will cause an overflow on unsigned long data type(0x). Huh? ppc64 is 64-bit system and sizeof(void

[RFC] mm: Change the data type of huge page size from unsigned long to u64

ink it needs to change the data type from unsigned long to u64. But it will cause a lot of functions and data structures changed. Any comments and suggestions? Thanks! Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- include/linux/hugetlb.h | 4 ++-- 1 file changed, 2 inserti

Re: [RFC] mm: Change the data type of huge page size from unsigned long to u64

On 9/13/16 7:40 PM, Kirill A. Shutemov wrote: On Tue, Sep 13, 2016 at 07:21:07PM +0800, Rui Teng wrote: On 9/13/16 5:32 PM, Kirill A. Shutemov wrote: On Tue, Sep 13, 2016 at 05:26:05PM +0800, Rui Teng wrote: The huge page size could be 16G(0x4) on ppc64 architecture, and it will cause

Re: [PATCH v2 1/1] mm/hugetlb: fix memory offline with hugepage size > memory block size

On 9/23/16 7:03 PM, Gerald Schaefer wrote: On Fri, 23 Sep 2016 14:40:33 +0800 Rui Teng <rui.t...@linux.vnet.ibm.com> wrote: On 9/22/16 5:51 PM, Michal Hocko wrote: On Wed 21-09-16 14:35:34, Gerald Schaefer wrote: dissolve_free_huge_pages() will either run into the VM_BUG_ON() or

Re: [PATCH] memory-hotplug: Fix bad area access on dissolve_free_huge_pages()

On 9/20/16 10:53 PM, Dave Hansen wrote: On 09/20/2016 07:45 AM, Rui Teng wrote: On 9/17/16 12:25 AM, Dave Hansen wrote: That's an interesting data point, but it still doesn't quite explain what is going on. It seems like there might be parts of gigantic pages that have PageHuge() set on tail

Re: [PATCH v2 1/1] mm/hugetlb: fix memory offline with hugepage size > memory block size

On 9/21/16 8:35 PM, Gerald Schaefer wrote: dissolve_free_huge_pages() will either run into the VM_BUG_ON() or a list corruption and addressing exception when trying to set a memory block offline that is part (but not the first part) of a hugetlb page with a size > memory block size. When no

Re: [PATCH v2 1/1] mm/hugetlb: fix memory offline with hugepage size > memory block size

On 9/22/16 5:51 PM, Michal Hocko wrote: On Wed 21-09-16 14:35:34, Gerald Schaefer wrote: dissolve_free_huge_pages() will either run into the VM_BUG_ON() or a list corruption and addressing exception when trying to set a memory block offline that is part (but not the first part) of a hugetlb

[PATCH] tools/testing/selftests/powerpc: Add Anton's null_syscall benchmark to the selftests

n...@au.ibm.com> Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- .../testing/selftests/powerpc/benchmarks/Makefile | 2 +- .../selftests/powerpc/benchmarks/null_syscall.c| 157 + 2 files changed, 158 insertions(+), 1 deletion(-) create mode 100644 tools/t

Re: [PATCH] memory-hotplug: Fix bad area access on dissolve_free_huge_pages()

On 9/17/16 12:25 AM, Dave Hansen wrote: That's an interesting data point, but it still doesn't quite explain what is going on. It seems like there might be parts of gigantic pages that have PageHuge() set on tail pages, while other parts don't. If that's true, we have another bug and your

Re: [PATCH] memory-hotplug: Fix bad area access on dissolve_free_huge_pages()

On 9/15/16 12:37 AM, Dave Hansen wrote: On 09/14/2016 09:33 AM, Rui Teng wrote: How about return the size of page freed from dissolve_free_huge_page(), and jump such step on pfn? That would be a nice improvement. But, as far as describing the initial problem, can you explain how the tail

[PATCH] powerpc: Clean up tm_abort duplication in hash_utils_64.c

The same logic appears twice and should probably be pulled out into a function. Suggested-by: Michael Ellerman <m...@ellerman.id.au> Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- arch/powerpc/mm/hash_utils_64.c | 45 + 1 file

[PATCH] tools/testing/selftests/powerpc: Add Anton's null_syscall benchmark to the selftests

n...@au.ibm.com> Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- .../testing/selftests/powerpc/benchmarks/Makefile | 2 +- .../selftests/powerpc/benchmarks/null_syscall.c| 157 + 2 files changed, 158 insertions(+), 1 deletion(-) create mode 100644 tools/t

[PATCH] powerpc/mm: fix a hardcode on memory boundary checking

The offset of hugepage block will not be 16G, if the expected page is more than one. Calculate the totol size instead of the hardcode value. Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- arch/powerpc/mm/hash_utils_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff

[PATCH] drivers/staging/wilc1000: fix sparse warning: right shift by bigger than source value

This patch sets memory to zero directly to avoid unnecessary shift and bitwise operations on bool type, which can fix a sparse warning and also improve performance. Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- drivers/staging/wilc1000/host_interface.c | 7 +++ 1 file chan

[PATCH] stating: lustre: fix sparse error: incompatible types in comparison expression

Comparing two user space addresses to avoid sparse error: drivers/staging//lustre/lnet/selftest/conrpc.c:490:30: error: incompatible types in comparison expression (different address spaces) Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- drivers/staging/lustre/lnet/selftest/co

Re: [PATCH] drivers/staging/wilc1000: fix sparse warning: right shift by bigger than source value

On 12/07/2017 1:04 AM, Greg Kroah-Hartman wrote: On Mon, Jul 10, 2017 at 04:57:31PM +0800, Rui Teng wrote: This patch sets memory to zero directly to avoid unnecessary shift and bitwise operations on bool type, which can fix a sparse warning and also improve performance. It does? How did you

[PATCH] drivers/staging/speakup: fix indent coding style problem in spk_ttyio.c

This is a patch to the spk_ttyio.c file which fixes up the indent error reported by the checkpatch.pl tool. Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- drivers/staging/speakup/spk_ttyio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/s

[PATCH] drivers/staging/speakup: fix some coding style problem in spk_ttyio.c

This is a patch to the spk_ttyio.c file which fixes up the problems reported by the checkpatch.pl tool. Signed-off-by: Rui Teng <rui.t...@linux.vnet.ibm.com> --- drivers/staging/speakup/spk_ttyio.c | 12 +++- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/s

[PATCH] stating: lustre: fix sparse error: incompatible types in comparison expression

Comparing two user space addresses to avoid sparse error: drivers/staging//lustre/lnet/selftest/conrpc.c:490:30: error: incompatible types in comparison expression (different address spaces) Signed-off-by: Rui Teng --- drivers/staging/lustre/lnet/selftest/conrpc.c | 5 ++--- 1 file changed, 2

[PATCH] drivers/staging/wilc1000: fix sparse warning: right shift by bigger than source value

This patch sets memory to zero directly to avoid unnecessary shift and bitwise operations on bool type, which can fix a sparse warning and also improve performance. Signed-off-by: Rui Teng --- drivers/staging/wilc1000/host_interface.c | 7 +++ 1 file changed, 3 insertions(+), 4 deletions

Re: [PATCH] drivers/staging/wilc1000: fix sparse warning: right shift by bigger than source value

On 12/07/2017 1:04 AM, Greg Kroah-Hartman wrote: On Mon, Jul 10, 2017 at 04:57:31PM +0800, Rui Teng wrote: This patch sets memory to zero directly to avoid unnecessary shift and bitwise operations on bool type, which can fix a sparse warning and also improve performance. It does? How did you

Re: [PATCH v2 1/1] mm/hugetlb: fix memory offline with hugepage size > memory block size

On 9/21/16 8:35 PM, Gerald Schaefer wrote: dissolve_free_huge_pages() will either run into the VM_BUG_ON() or a list corruption and addressing exception when trying to set a memory block offline that is part (but not the first part) of a hugetlb page with a size > memory block size. When no

Re: [PATCH v2 1/1] mm/hugetlb: fix memory offline with hugepage size > memory block size

On 9/22/16 5:51 PM, Michal Hocko wrote: On Wed 21-09-16 14:35:34, Gerald Schaefer wrote: dissolve_free_huge_pages() will either run into the VM_BUG_ON() or a list corruption and addressing exception when trying to set a memory block offline that is part (but not the first part) of a hugetlb

[PATCH] tools/testing/selftests/powerpc: Add Anton's null_syscall benchmark to the selftests

From: Anton Blanchard Pull in a version of Anton's null_syscall benchmark: http://ozlabs.org/~anton/junkcode/null_syscall.c Into tools/testing/selftests/powerpc/benchmarks. Suggested-by: Michael Ellerman Signed-off-by: Anton Blanchard Signed-off-by: Rui Teng --- .../testing/selftests

[PATCH] drivers/staging/speakup: fix indent coding style problem in spk_ttyio.c

This is a patch to the spk_ttyio.c file which fixes up the indent error reported by the checkpatch.pl tool. Signed-off-by: Rui Teng --- drivers/staging/speakup/spk_ttyio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/speakup/spk_ttyio.c b/drivers/staging

[PATCH] drivers/staging/speakup: fix some coding style problem in spk_ttyio.c

This is a patch to the spk_ttyio.c file which fixes up the problems reported by the checkpatch.pl tool. Signed-off-by: Rui Teng --- drivers/staging/speakup/spk_ttyio.c | 12 +++- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/staging/speakup/spk_ttyio.c b/drivers

Re: [PATCH] memory-hotplug: Fix bad area access on dissolve_free_huge_pages()

On 9/17/16 12:25 AM, Dave Hansen wrote: That's an interesting data point, but it still doesn't quite explain what is going on. It seems like there might be parts of gigantic pages that have PageHuge() set on tail pages, while other parts don't. If that's true, we have another bug and your

Re: [PATCH] memory-hotplug: Fix bad area access on dissolve_free_huge_pages()

On 9/20/16 10:53 PM, Dave Hansen wrote: On 09/20/2016 07:45 AM, Rui Teng wrote: On 9/17/16 12:25 AM, Dave Hansen wrote: That's an interesting data point, but it still doesn't quite explain what is going on. It seems like there might be parts of gigantic pages that have PageHuge() set on tail

[PATCH] powerpc: Remove suspect CONFIG_PPC_BOOK3E #ifdefs in nohash/64/pgtable.h

There are three #ifdef CONFIG_PPC_BOOK3E sections in nohash/64/pgtable.h. And there should be no configurations possible which use nohash/64/pgtable.h but don't also enable CONFIG_PPC_BOOK3E. Suggested-by: Michael Ellerman Signed-off-by: Rui Teng --- arch/powerpc/include/asm/nohash/64

[PATCH] powerpc: Clean up tm_abort duplication in hash_utils_64.c

The same logic appears twice and should probably be pulled out into a function. Suggested-by: Michael Ellerman Signed-off-by: Rui Teng --- arch/powerpc/mm/hash_utils_64.c | 45 + 1 file changed, 19 insertions(+), 26 deletions(-) diff --git a/arch

[PATCH] powerpc/mm: fix a hardcode on memory boundary checking

The offset of hugepage block will not be 16G, if the expected page is more than one. Calculate the totol size instead of the hardcode value. Signed-off-by: Rui Teng --- arch/powerpc/mm/hash_utils_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/mm

Re: [PATCH] powerpc/mm: fix a hardcode on memory boundary checking

On 31/01/2017 5:11 PM, Michael Ellerman wrote: Rui Teng writes: The offset of hugepage block will not be 16G, if the expected page is more than one. Calculate the totol size instead of the hardcode value. I assume you found this by code inspection and not by triggering an actual bug? Yes

Re: [PATCH] memory-hotplug: Fix bad area access on dissolve_free_huge_pages()

On 9/14/16 1:32 AM, Dave Hansen wrote: On 09/13/2016 01:39 AM, Rui Teng wrote: diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 87e11d8..64b5f81 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1442,7 +1442,7 @@ static int free_pool_huge_page(struct hstate *h, nodemask_t *nodes_allowed, static

Re: [PATCH] memory-hotplug: Fix bad area access on dissolve_free_huge_pages()

On 9/15/16 12:37 AM, Dave Hansen wrote: On 09/14/2016 09:33 AM, Rui Teng wrote: How about return the size of page freed from dissolve_free_huge_page(), and jump such step on pfn? That would be a nice improvement. But, as far as describing the initial problem, can you explain how the tail

[PATCH] [V3] powerpc/mm: Add validation for platform reserved memory ranges

ted memory contexts. This helps prevent the possibility of getting return codes similar to H_RESOURCE for H_PROTECT hcalls for conflicting HPTE entries. Signed-off-by: Anshuman Khandual Signed-off-by: Rui Teng --- - Tested on both POWER8 LE and BE platforms Changes in V3: - Use u32 and u64 to store t

Re: [PATCH] powerpc: Clean up tm_abort duplication in hash_utils_64.c

On 9/1/16 11:46 PM, Thiago Jung Bauermann wrote: Am Freitag, 26 August 2016, 11:50:10 schrieb Rui Teng: The same logic appears twice and should probably be pulled out into a function. Suggested-by: Michael Ellerman Signed-off-by: Rui Teng --- arch/powerpc/mm/hash_utils_64.c | 45

[PATCH] [v2] powerpc: Clean up tm_abort duplication in hash_utils_64.c

The same logic appears twice and should probably be pulled out into a function. Suggested-by: Michael Ellerman Signed-off-by: Rui Teng --- Changes in V2: - Change function to static and inline - Use #else block to define an empty static inline function --- arch/powerpc/mm/hash_utils_64.c | 55

[PATCH] memory-hotplug: Fix bad area access on dissolve_free_huge_pages()

-by: Santhosh G Signed-off-by: Rui Teng --- mm/hugetlb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 87e11d8..64b5f81 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1442,7 +1442,7 @@ static int free_pool_huge_page(struct hstate *h, nodemask_t

[RFC] mm: Change the data type of huge page size from unsigned long to u64

ink it needs to change the data type from unsigned long to u64. But it will cause a lot of functions and data structures changed. Any comments and suggestions? Thanks! Signed-off-by: Rui Teng --- include/linux/hugetlb.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/incl

Re: [RFC] mm: Change the data type of huge page size from unsigned long to u64

On 9/13/16 5:32 PM, Kirill A. Shutemov wrote: On Tue, Sep 13, 2016 at 05:26:05PM +0800, Rui Teng wrote: The huge page size could be 16G(0x4) on ppc64 architecture, and it will cause an overflow on unsigned long data type(0x). Huh? ppc64 is 64-bit system and sizeof(void

Re: [RFC] mm: Change the data type of huge page size from unsigned long to u64

On 9/13/16 7:40 PM, Kirill A. Shutemov wrote: On Tue, Sep 13, 2016 at 07:21:07PM +0800, Rui Teng wrote: On 9/13/16 5:32 PM, Kirill A. Shutemov wrote: On Tue, Sep 13, 2016 at 05:26:05PM +0800, Rui Teng wrote: The huge page size could be 16G(0x4) on ppc64 architecture, and it will cause

Re: [PATCH v2 1/1] mm/hugetlb: fix memory offline with hugepage size > memory block size

On 9/23/16 7:03 PM, Gerald Schaefer wrote: On Fri, 23 Sep 2016 14:40:33 +0800 Rui Teng wrote: On 9/22/16 5:51 PM, Michal Hocko wrote: On Wed 21-09-16 14:35:34, Gerald Schaefer wrote: dissolve_free_huge_pages() will either run into the VM_BUG_ON() or a list corruption and addressing

[PATCH] tools/testing/selftests/powerpc: Add Anton's null_syscall benchmark to the selftests

From: Anton Blanchard Pull in a version of Anton's null_syscall benchmark: http://ozlabs.org/~anton/junkcode/null_syscall.c Into tools/testing/selftests/powerpc/benchmarks. Suggested-by: Michael Ellerman Signed-off-by: Anton Blanchard Signed-off-by: Rui Teng --- .../testing/selftests

Re: [PATCH v2 1/6] mm/page_alloc: recalculate some of zone threshold when on/offline memory

On 4/25/16 1:21 PM, js1...@gmail.com wrote: From: Joonsoo Kim Some of zone threshold depends on number of managed pages in the zone. When memory is going on/offline, it can be changed and we need to adjust them. This patch add recalculation to appropriate places and clean-up related function

[PATCH] drivers/input: Macros with complex values should be enclosed in parentheses

eported by scripts/checkpatch.pl. Signed-off-by: Rui Teng --- drivers/input/keyboard/twl4030_keypad.c | 11 ++- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c index bbcccd6..8d061c0 100

Re: [PATCH v2 2/6] mm/cma: introduce new zone, ZONE_CMA

On 4/25/16 1:21 PM, js1...@gmail.com wrote: From: Joonsoo Kim Attached cover-letter: This series try to solve problems of current CMA implementation. CMA is introduced to provide physically contiguous pages at runtime without exclusive reserved memory area. But, current implementation works

Re: [RFC 6/9] powerpc/hugetlb: Enable ARCH_WANT_GENERAL_HUGETLB for BOOK3S 64K

On 3/9/16 8:10 PM, Anshuman Khandual wrote: This enables ARCH_WANT_GENERAL_HUGETLB for BOOK3S 64K in Kconfig. It also implements a new function 'pte_huge' which is required by function 'huge_pte_alloc' from generic VM. Existing BOOK3S 64K specific functions 'huge_pte_alloc' and 'huge_pte_offset'

[PATCH 1/2] perf: Fix errors reported by checkpatch.pl scripts

Clear all the errors and also some warnings reported by checkpatch.pl scripts for file tools/perf/util/header.c Signed-off-by: Rui Teng --- tools/perf/util/header.c | 60 ++-- 1 file changed, 33 insertions(+), 27 deletions(-) diff --git a/tools/perf

[PATCH 2/2] perf: Use __weak definition from

Replace __attribute__((weak)) to __weak definition Signed-off-by: Rui Teng --- tools/perf/util/header.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 8d76d55..576addd 100644 --- a/tools/perf/util/header.c +++ b

[PATCH] [PATCH] [V3] powerpc/mm: Add validation for platform reserved memory ranges

ted memory contexts. This helps prevent the possibility of getting return codes similar to H_RESOURCE for H_PROTECT hcalls for conflicting HPTE entries. Signed-off-by: Anshuman Khandual Signed-off-by: Rui Teng --- - Tested on both POWER8 LE and BE platforms Changes in V3: - Use u32 and u64 to store t

[PATCH] perf: Fix errors reported by checkpatch.pl scripts

Clear all the errors and also some warnings reported by checkpatch.pl scripts for file tools/perf/util/header.c And replace __attribute__((weak)) to __weak definition from Signed-off-by: Rui Teng --- tools/perf/util/header.c | 44 ++-- 1 file changed, 26

[PATCH] perf: Skip running the feature tests for 'make install-doc'

'. Signed-off-by: Rui Teng --- tools/perf/Makefile.perf | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 2d90875..9c1dac6 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -165,7 +165,7

[PATCH] security: Use || instead of | for boolean expressions

. Signed-off-by: Rui Teng --- security/commoncap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/security/commoncap.c b/security/commoncap.c index e7fadde..8f6fb24 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -976,7 +976,7 @@ int cap_task_prctl(int option

Re: [PATCH] security: Use || instead of | for boolean expressions

On 6/2/16 10:13 PM, Serge E. Hallyn wrote: On Wed, Jun 01, 2016 at 02:03:02PM +0800, Rui Teng wrote: Sparse spits out the following warning: security/commoncap.c:989:41: warning: dubious: !x | y Bitwise and logical are equivalent here, but logical was intended. Replacing the bit-wise

[tip:perf/core] perf tools: Skip running the feature tests for 'make install-doc'

Commit-ID: 11196b79164c95b8e5968ff63fa6b59536c9748f Gitweb: http://git.kernel.org/tip/11196b79164c95b8e5968ff63fa6b59536c9748f Author: Rui Teng <rui.t...@linux.vnet.ibm.com> AuthorDate: Wed, 10 Aug 2016 16:49:08 +0800 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> Com

[tip:perf/core] perf tools: Use __weak definition from linux/compiler.h

Commit-ID: 11d8f870c8eb8dd41ade688fbad6946ad69243fe Gitweb: http://git.kernel.org/tip/11d8f870c8eb8dd41ade688fbad6946ad69243fe Author: Rui Teng <rui.t...@linux.vnet.ibm.com> AuthorDate: Thu, 28 Jul 2016 10:05:57 +0800 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> Com

[tip:perf/core] perf tools: Skip running the feature tests for 'make install-doc'

Commit-ID: 11196b79164c95b8e5968ff63fa6b59536c9748f Gitweb: http://git.kernel.org/tip/11196b79164c95b8e5968ff63fa6b59536c9748f Author: Rui Teng AuthorDate: Wed, 10 Aug 2016 16:49:08 +0800 Committer: Arnaldo Carvalho de Melo CommitDate: Tue, 23 Aug 2016 15:37:33 -0300 perf tools: Skip

[tip:perf/core] perf tools: Use __weak definition from linux/compiler.h

Commit-ID: 11d8f870c8eb8dd41ade688fbad6946ad69243fe Gitweb: http://git.kernel.org/tip/11d8f870c8eb8dd41ade688fbad6946ad69243fe Author: Rui Teng AuthorDate: Thu, 28 Jul 2016 10:05:57 +0800 Committer: Arnaldo Carvalho de Melo CommitDate: Tue, 23 Aug 2016 15:37:33 -0300 perf tools: Use