> On Mar 11, 2016, at 15:23, Lu Bing wrote:
>
> From: l00215322
>
> Many android devices have zram,so we should add "MM_SWAPENTS" in tasksize.
> Refer oom_kill.c,we add pte&pmd also.
>
> Reviewed-by: Chen Feng
> Reviewed-by: Fu Jun
> Reviewed-by: Xu YiPing
> Reviewed-by: Yu DongBin
> Sign
change to use generic sign_extend32() to caaculate branch_displacement.
Signed-off-by: yalin wang
---
arch/arm/probes/decode-arm.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/arm/probes/decode-arm.c b/arch/arm/probes/decode-arm.c
index f72c33a..ff794c0 100644
> On Dec 15, 2015, at 19:53, Kirill A. Shutemov
> wrote:
>
> On Tue, Dec 15, 2015 at 02:41:21PM +0800, yalin wang wrote:
>>> On Dec 15, 2015, at 05:11, Kirill A. Shutemov wrote:
>>> Anyway, I don't think it's possible to gain anything measurable
> On Dec 15, 2015, at 05:11, Kirill A. Shutemov wrote:
>
> On Mon, Dec 14, 2015 at 06:55:09PM +0100, Oleg Nesterov wrote:
>> On 12/14, Kirill A. Shutemov wrote:
>>>
>>> On Mon, Dec 14, 2015 at 07:02:25PM +0800, yalin wang wrote:
>>>> change find
change find_vma() to break ealier when found the adderss
is not in any vma, don't need loop to search all vma.
Signed-off-by: yalin wang
---
mm/mmap.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/mm/mmap.c b/mm/mmap.c
index b513f20..8294c9b 100644
--- a/mm/mmap.c
+++ b/mm/m
> On Dec 2, 2015, at 16:03, Kees Cook wrote:
>
> Normally, when a user can modify a file that has setuid or setgid bits,
> those bits are cleared when they are not the file owner or a member
> of the group. This is enforced when using write and truncate but not
> when writing to a shared mmap on
>> Technically, I think the answer is yes, at least in C99 (and I suppose
>> gcc would accept it in gnu89 mode as well).
>>
>> printk("%pg\n", &(struct flag_printer){.flags = my_flags, .names =
>> vmaflags_names});
>>
>> Not tested, and I still don't think it would be particularly readable
>> e
> On Dec 3, 2015, at 00:03, Rasmus Villemoes wrote:
>
> On Thu, Dec 03 2015, yalin wang wrote:
>
>>> On Dec 2, 2015, at 13:04, Vlastimil Babka wrote:
>>>
>>> On 12/02/2015 06:40 PM, yalin wang wrote:
>>>
>>> (please trim your reply
> On Dec 2, 2015, at 13:04, Vlastimil Babka wrote:
>
> On 12/02/2015 06:40 PM, yalin wang wrote:
>
> (please trim your reply next time, no need to quote whole patch here)
>
>> i am thinking why not make %pg* to be more generic ?
>> not restricted to only GFP /
> On Nov 30, 2015, at 08:10, Vlastimil Babka wrote:
>
> In mm we use several kinds of flags bitfields that are sometimes printed for
> debugging purposes, or exported to userspace via sysfs. To make them easier to
> interpret independently on kernel version and config, we want to dump also the
>
> On Nov 27, 2015, at 19:09, Petr Mladek wrote:
>
> Testing has shown that the backtrace sometimes does not fit
> into the 4kB temporary buffer that is used in NMI context.
>
> The warnings are gone when I double the temporary buffer size.
>
> Note that this problem existed even in the x86-spe
> On Nov 27, 2015, at 16:53, Rasmus Villemoes wrote:
>
> Hi,
>
> It seems that gcc happily compiles
>
> for (i = 0; i < 10; ++i) ;
>
> into simply
>
> i = 10;
>
> (which is then usually eliminated as a dead store). At least at -O2, and
> when i is not declared volatile. So i
> On Nov 27, 2015, at 15:04, Jan Kiszka wrote:
>
> On 2015-11-27 07:41, yalin wang wrote:
>> we insert __file__'s real path into sys.path,
>> so that no matter we import the vmlinux-gdb.py from $OUT floder or
>> from source code folder, we can always find the li
we insert __file__'s real path into sys.path,
so that no matter we import the vmlinux-gdb.py from $OUT floder or
from source code folder, we can always find the linux/ lib folder,
and we don't need create link to linux/*.py files,
remove the related make file.
Signed-off-by:
> On Nov 25, 2015, at 15:38, Jan Kiszka wrote:
>
> On 2015-11-19 11:54, yalin wang wrote:
>> The sys.path should be scripts/gdb,
>> so that we can import linux lib correctly.
>>
>> Signed-off-by: yalin wang
>> ---
>> scripts/gdb/vmlinux-gdb.p
nr_uninterruptible will be negative during running,
this happened when dequeue a TASK_UNINTERRUPTIBLE task
from rq1 and then wake up the task and queue it to rq2,
then rq2->nr_uninterruptible-- will reuslt in negative value
sometimes.
Signed-off-by: yalin wang
---
kernel/sched/loadavg.c
> On Nov 25, 2015, at 18:28, Vlastimil Babka wrote:
>
> On 11/25/2015 09:16 AM, Joonsoo Kim wrote:
>> On Tue, Nov 24, 2015 at 01:36:18PM +0100, Vlastimil Babka wrote:
>>> --- a/include/trace/events/gfpflags.h
>>> +++ b/include/trace/events/gfpflags.h
>>> @@ -8,8 +8,8 @@
>>> *
>>> * Thus most b
Use XOR to chenk some flags in flags1 and flags2 if the same,
much faster on some platforms.
Signed-off-by: yalin wang
---
include/linux/blkdev.h | 11 +--
1 file changed, 1 insertion(+), 10 deletions(-)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index c401ecd
> On Nov 20, 2015, at 00:57, David Woods wrote:
>
> The arm64 MMU supports a Contiguous bit which is a hint that the TTE
> is one of a set of contiguous entries which can be cached in a single
> TLB entry. Supporting this bit adds new intermediate huge page sizes.
>
> The set of huge page size
The sys.path should be scripts/gdb,
so that we can import linux lib correctly.
Signed-off-by: yalin wang
---
scripts/gdb/vmlinux-gdb.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/gdb/vmlinux-gdb.py b/scripts/gdb/vmlinux-gdb.py
index ce82bf5..5a45d1a 100644
--- a
> On Nov 19, 2015, at 14:58, Kirill A. Shutemov wrote:
>
> uncharged
i also encounter this crash ,
also i encounter a crash like this in qemu:
[2.703436] [] do_execveat_common.isra.36+0x4f0/0x630
[2.703624] [] do_execve+0x24/0x30
[2.703767] [] SyS_execve+0x1c/0x2c
[2.703923]
> On Nov 19, 2015, at 14:48, Jia He wrote:
>
>
why not use memcmp() to compare with 0x000 or 0x ?
memcmp() have better performance on some platforms .
Thanks
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the body of a message to majord...@vger.ker
you should access it like this:
printk ( *(int*)kmap(pays_to_page(pays_addr)));
pays address must be mapped into virtual address before access it .
> On Nov 17, 2015, at 23:21, alan hopes wrote:
>
> phys_addr
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To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> On Nov 17, 2015, at 11:38, Jens Axboe wrote:
>
> On 11/16/2015 08:24 PM, yalin wang wrote:
>> Some arch define this atomic_inc_return_release() OP.
>
> That is a very vague commit message, you'll need a whole lot more than
> that... A commit message is suppos
> On Nov 17, 2015, at 10:43, Steven Rostedt wrote:
>
> On Tue, 17 Nov 2015 10:21:47 +0800
> yalin wang wrote:
>
>
>> i have not tried ,
>> just a question,
>> if you print a %s , but don’t call trace_define_field() do define this
>> string in
>
Some arch define this atomic_inc_return_release() OP.
Signed-off-by: yalin wang
---
block/bio.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/block/bio.c b/block/bio.c
index fbc558b..b251857 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -310,8 +310,7 @@ static void
> On Nov 16, 2015, at 22:25, Steven Rostedt wrote:
>
> On Mon, 16 Nov 2015 11:16:22 +0100
> Vlastimil Babka wrote:
>>
-- Steve
>>> it is not easy to print for perf tools in userspace ,
>>> if you use this format ,
>>> for user space perf tool, it print the entry by look up the member in
> On Nov 16, 2015, at 10:13, Minchan Kim wrote:
>
> On Fri, Nov 13, 2015 at 11:46:07AM -0800, Andy Lutomirski wrote:
>> On Fri, Nov 13, 2015 at 12:13 AM, Daniel Micay wrote:
>>> On 13/11/15 02:03 AM, Minchan Kim wrote:
On Fri, Nov 13, 2015 at 01:45:52AM -0500, Daniel Micay wrote:
>> An
Move node_id zone_idx shrink flags into trace function,
so thay we don't need caculate these args if the trace is disabled,
and will make this function have less arguments.
Signed-off-by: yalin wang
---
include/trace/events/vmscan.h | 14 +++---
mm/vmscan.c
> On Nov 13, 2015, at 21:16, Vlastimil Babka wrote:
>
> zone_to_nid
make sense,
i will send V2 patch ,
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> On Nov 13, 2015, at 23:36, Michal Hocko wrote:
>
> On Fri 13-11-15 13:01:16, Vlastimil Babka wrote:
>> On 11/13/2015 12:47 PM, yalin wang wrote:
>>> Add page_is_file_cache() for __GFP_FS check,
>>> otherwise, a Pageswapcache() && PageDirty() page can
> On Nov 13, 2015, at 22:01, Steven Rostedt wrote:
>
> On Fri, 13 Nov 2015 19:54:11 +0800
> yalin wang wrote:
>
>>>>> TP_fast_assign(
>>>>> __entry->mm = mm;
>>>>> - __entry->pfn = pfn;
>>>>>
: 0 Comm: swapper/2 Tainted: G D W
4.3.0-rc6-next-20151022ajb-1-g32f3386-dirty #3
[ 182.665248 ] Hardware name: linux,dummy-virt (DT)
Signed-off-by: yalin wang
---
include/trace/events/huge_memory.h | 12 ++--
mm/huge_memory.c | 6 +++---
2 files changed
: 0 Comm: swapper/2 Tainted: G D W
4.3.0-rc6-next-20151022ajb-1-g32f3386-dirty #3
[ 182.665248 ] Hardware name: linux,dummy-virt (DT)
add the trace point with TP_CONDITION(page),
avoid trace NULL page.
Signed-off-by: yalin wang
---
include/trace/events/huge_memory.h | 12
> On Nov 13, 2015, at 18:47, Vlastimil Babka wrote:
>
> On 11/12/2015 03:29 PM, Steven Rostedt wrote:
>> On Thu, 12 Nov 2015 16:21:02 +0800
>> yalin wang wrote:
>>
>>> This crash is caused by NULL pointer deference, in page_to_pfn() marco,
>>&g
Add page_is_file_cache() for __GFP_FS check,
otherwise, a Pageswapcache() && PageDirty() page can always be write
back if the gfp flag is __GFP_FS, this is not the expected behavior.
Signed-off-by: yalin wang
---
mm/vmscan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --
> On Nov 13, 2015, at 16:41, Hillf Danton wrote:
>
>>
>> Instead of the condition, we could have:
>>
>> __entry->pfn = page ? page_to_pfn(page) : -1;
>>
>>
>> But if there's no reason to do the tracepoint if page is NULL, then
>> this patch is fine. I'm just throwing out this idea.
>>
Use kmalloc instead of kzalloc, zero the memory is not needed.
Signed-off-by: yalin wang
---
drivers/mmc/card/block.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index c742cfd..c3fd4c8 100644
--- a/drivers/mmc/card
> On Nov 12, 2015, at 05:57, Andy Shevchenko wrote:
>
> On Wed, Nov 11, 2015 at 11:17 PM, Peter Hurley
> wrote:
>> On 11/11/2015 12:02 PM, Alim Akhtar wrote:
>>> Hi Yalin,
>>>
>>> On Wed, Nov 11, 2015 at 9:53 AM, yalin wang
>>> wrote:
&
: 0 Comm: swapper/2 Tainted: G D W
4.3.0-rc6-next-20151022ajb-1-g32f3386-dirty #3
[ 182.665248 ] Hardware name: linux,dummy-virt (DT)
add the trace point with TP_CONDITION(page),
avoid trace NULL page.
Signed-off-by: yalin wang
---
include/trace/events/huge_memory.h | 20
Move node_id zone_idx shrink flags into trace function,
so thay we don't need caculate these args if the trace is disabled,
and will make this function have less arguments.
Signed-off-by: yalin wang
---
include/trace/events/vmscan.h | 14 +++---
mm/vmscan.c
Move trace_reclaim_flags() into trace function,
so that we don't need caculate these flags if the trace is disabled.
Signed-off-by: yalin wang
---
include/trace/events/vmscan.h | 7 +++
mm/vmscan.c | 2 +-
2 files changed, 4 insertions(+), 5 deletions(-)
diff --
Ok
i will send a V3 patch.
> On Nov 5, 2015, at 16:50, Kirill A. Shutemov wrote:
>
> On Thu, Nov 05, 2015 at 09:12:34AM +0100, Vlastimil Babka wrote:
>> On 10/29/2015 01:35 AM, Kirill A. Shutemov wrote:
@@ -2605,9 +2603,9 @@ out_unmap:
/* collapse_huge_page will return with t
: 0 Comm: swapper/2 Tainted: G D W
4.3.0-rc6-next-20151022ajb-1-g32f3386-dirty #3
[ 182.665248 ] Hardware name: linux,dummy-virt (DT)
add the trace point with TP_CONDITION(page),
avoid trace NULL page.
Signed-off-by: yalin wang
---
include/trace/events/huge_memory.h | 10
Use kmalloc instead of kzalloc, zero the memory is not needed.
Signed-off-by: yalin wang
---
drivers/mmc/card/block.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 23b6c8e..975cd3e 100644
--- a/drivers/mmc/card
> On Nov 10, 2015, at 19:35, Catalin Marinas wrote:
>
> On Tue, Nov 10, 2015 at 07:09:00PM +0800, yalin wang wrote:
>>> On Nov 10, 2015, at 18:37, Catalin Marinas wrote:
>>>
>>> On Mon, Nov 09, 2015 at 10:09:55AM -0800, Yang Shi wrote:
>>>> FR
> On Nov 10, 2015, at 19:18, Will Deacon wrote:
>
> Ha, so it does! Patch below. The only non-trivial part was arch/arm/,
> which has a dependency on !SMP which I believe is no longer required
> as of d5996b2ff0e2 ("ARM: fix /proc/$PID/stack on SMP").
>
> Will
>
> --->8
>
> From 8dfb40e92ac32
> On Nov 10, 2015, at 18:37, Catalin Marinas wrote:
>
> On Mon, Nov 09, 2015 at 10:09:55AM -0800, Yang Shi wrote:
>> FRAME_POINTER is defined in lib/Kconfig.debug, it is unnecessary to redefine
>> it in arch/arm64/Kconfig.debug. Actually, the one defined in arm64 directory
>> is never used.
>
i just enable it on ARM64,
and it can work,
i don’t see some special requirement to enable this config .
> On Nov 7, 2015, at 00:05, Will Deacon wrote:
>
> On Fri, Nov 06, 2015 at 11:57:58PM +0800, yalin wang wrote:
>> Add HAVE_LATENCYTOP_SUPPORT in Kconfig, so that
>> we ca
Add HAVE_LATENCYTOP_SUPPORT in Kconfig, so that
we can enable this feature on ARM64
Signed-off-by: yalin wang
---
arch/arm64/Kconfig | 4
1 file changed, 4 insertions(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 851fe11..782b5bd 100644
--- a/arch/arm64/Kconfig
+++ b/arch
param() function, seems not used,
we don't need use this function in goldfish_pipe_read_write().
Signed-off-by: yalin wang
---
drivers/platform/goldfish/goldfish_pipe.c | 56 +++
1 file changed, 35 insertions(+), 21 deletions(-)
diff --git a/drivers/platfor
qemu use device tree to bootup linux kernel,
we need add device node match table to plaftorm driver,
so that can probe the goldfish driver correctly.
test by this qemu:
git clone https://android.googlesource.com/platform/external/qemu
Signed-off-by: yalin wang
---
drivers/input/keyboard
Signed-off-by: yalin wang
---
drivers/input/keyboard/goldfish_events.c | 9 +
drivers/platform/goldfish/goldfish_pipe.c | 11 ++-
drivers/power/goldfish_battery.c | 11 ++-
drivers/staging/goldfish/goldfish_audio.c | 11 ++-
drivers/staging/goldfish
Add GOLDFISH OLPC config symbols, which is missing.
Signed-off-by: yalin wang
---
drivers/platform/Kconfig | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/platform/Kconfig b/drivers/platform/Kconfig
index 0adccbf..81f4fb3 100644
--- a/drivers/platform/Kconfig
+++ b/drivers
> On Nov 4, 2015, at 16:36, Sergey Senozhatsky
> wrote:
>
> On (11/04/15 15:35), yalin wang wrote:
> [..]
>>
>> -for (batch = tlb->local.next; batch; batch = next) {
>> -next = batch->next;
>> +for (batch
> On Oct 30, 2015, at 13:25, AKASHI Takahiro wrote:
>
> Stack tracer on arm64, check_stack(), is uniqeue in the following
> points:
> * analyze a function prologue of a traced function to estimate a more
> accurate stack pointer value, replacing naive ' + 0x10.'
> * use walk_stackframe(), inste
Signed-off-by: yalin wang
---
fs/ext4/readpage.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
ignore my previous patch
diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c
index 5dc5e95..2cc2760 100644
--- a/fs/ext4/readpage.c
+++ b/fs/ext4/readpage.c
@@ -135,7 +135,6 @@ int
The last block should be the total read pages last block,
need adjust the block number when caculate every page.
Signed-off-by: yalin wang
---
fs/ext4/readpage.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c
index 5dc5e95..d20c39d
This patch remove unneeded *next temp variable,
make this function more simple to read.
Signed-off-by: yalin wang
---
mm/memory.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/mm/memory.c b/mm/memory.c
index 7f3b9f2..f0040ed 100644
--- a/mm/memory.c
+++ b/mm
> On Oct 30, 2015, at 21:47, Jiri Kosina wrote:
>
> From: Jiri Kosina
>
> Freeze all filesystems during hibernation in favor of dropping kthread
> freezing completely.
>
> Kthread freezing has a history of not very well defined semantics.
> Historically, it has been established to make sure t
> On Oct 27, 2015, at 16:52, yalin wang wrote:
>
>
>> On Oct 27, 2015, at 16:10, Minchan Kim wrote:
>>
>> On Tue, Oct 27, 2015 at 03:39:16PM +0800, yalin wang wrote:
>>>
>>>> On Oct 27, 2015, at 15:09, Minchan Kim wrote:
>>>>
&
> On Oct 27, 2015, at 16:10, Minchan Kim wrote:
>
> On Tue, Oct 27, 2015 at 03:39:16PM +0800, yalin wang wrote:
>>
>>> On Oct 27, 2015, at 15:09, Minchan Kim wrote:
>>>
>>> Hello Yalin,
>>>
>>> Sorry for missing you in Cc list
> On Oct 27, 2015, at 15:09, Minchan Kim wrote:
>
> Hello Yalin,
>
> Sorry for missing you in Cc list.
> IIRC, mails to send your previous mail address(yalin.w...@sonymobile.com)
> were returned.
>
> You added comment bottom line so I'm not sure what PageDirty you meant.
>
>> it is wrong here
> On Oct 27, 2015, at 10:09, Hugh Dickins wrote:
>
> On Mon, 19 Oct 2015, Minchan Kim wrote:
>
>> I made reclaim path mess to check and free MADV_FREEed page.
>> This patch simplify it with tweaking add_to_swap.
>>
>> So far, we mark page as PG_dirty when we add the page into
>> swap cache(ie,
: 0 Comm: swapper/2 Tainted: G D W
4.3.0-rc6-next-20151022ajb-1-g32f3386-dirty #3
[ 182.665248 ] Hardware name: linux,dummy-virt (DT)
Signed-off-by: yalin wang
---
mm/huge_memory.c | 16 +++-
1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/mm/huge_memory.c
> On Oct 23, 2015, at 18:11, Kirill A. Shutemov wrote:
>
> On Fri, Oct 23, 2015 at 05:38:49PM +0800, yalin wang wrote:
>> This crash is caused by NULL pointer deference:
>> [ 182.639154 ] Unable to handle kernel NULL pointer dereference at virtual
>> address
4.3.0-rc6-next-20151022ajb-1-g32f3386-dirty #3
[ 182.665248 ] Hardware name: linux,dummy-virt (DT)
Signed-off-by: yalin wang
---
mm/huge_memory.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 4b3420a..a5f4d9c 100644
--- a
This patch change map_lookup_elem() and map_update_elem() function
to use u64 temp variable if the key_size or value_size is less than
u64, we don't need use kmalloc() for these small variables.
Signed-off-by: yalin wang
---
kernel/bpf/syscall.c | 30 --
1
Got it ,
Thanks for your explanation .
> On Oct 16, 2015, at 18:57, Mark Rutland wrote:
>
> Hi,
>
> On Fri, Oct 16, 2015 at 06:46:07PM +0800, yalin wang wrote:
>> Change to use memmove(), in case the dest address overlap with the
>> source address.
>
> This ca
Change to use memmove(), in case the dest address overlap with the
source address.
Signed-off-by: yalin wang
---
arch/arm64/kernel/efi-stub.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/efi-stub.c b/arch/arm64/kernel/efi-stub.c
index 816120e..b6dc44b
> On Oct 14, 2015, at 16:23, Arnd Bergmann wrote:
>
> On Wednesday 14 October 2015 10:41:26 yalin wang wrote:
>
>>> On Oct 13, 2015, at 23:20, Catalin Marinas wrote:
>>>> I'm not sure we want this. See:
>>>>
>>>> https://lkml.
> On Oct 13, 2015, at 23:20, Catalin Marinas wrote:
>
> On Tue, Oct 13, 2015 at 03:23:27PM +0100, Will Deacon wrote:
>> On Tue, Oct 13, 2015 at 03:10:55PM +0100, Catalin Marinas wrote:
>>> On Mon, Oct 12, 2015 at 10:28:18AM +0800, yalin wang wrote:
>>>> A
> On Oct 13, 2015, at 17:40, Arnd Bergmann wrote:
>
> On Tuesday 13 October 2015 15:33:10 yalin wang wrote:
>>
>>> On Oct 13, 2015, at 04:04, Sam Ravnborg wrote:
>>>
>>>> --- a/include/asm-generic/vmlinux.lds.h
>>>> +++ b/include/
> On Oct 13, 2015, at 04:04, Sam Ravnborg wrote:
>
>> --- a/include/asm-generic/vmlinux.lds.h
>> +++ b/include/asm-generic/vmlinux.lds.h
>>
>> -#define BSS_SECTION(sbss_align, bss_align, stop_align)
>> \
>> +#define BSS_SECTION(sbss_align, bss_align, initbss_align, stop_al
void a memory leak.
>
> This is a fix to the mmotm patch
> mm-page_alloc-reserve-pageblocks-for-high-order-atomic-allocations-on-demand.patch
>
> Signed-off-by: yalin wang
> Acked-by: Mel Gorman
no problem,
i have send the patch again using your change log .
Thanks--
To unsub
-pageblocks-for-high-order-atomic-allocations-on-demand.patch
Signed-off-by: yalin wang
Acked-by: Mel Gorman
---
mm/page_alloc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 0d6f540..043b691 100644
--- a/mm/page_alloc.c
+++ b/mm
> On Oct 12, 2015, at 16:22, Ard Biesheuvel wrote:
>
> On 12 October 2015 at 05:59, yalin wang wrote:
>> This attribute can make init data to be into .initbss section,
>> this will make the data to be NO_BITS in vmlinux, can shrink the
>> Image file size, an
Change temp variable name addr to addr,
so that not conflict with the caller's variable name,
it will build error if call like this:
__set_fixmap_offset(idx, addr, flags)
Signed-off-by: yalin wang
---
include/asm-generic/fixmap.h | 6 +++---
1 file changed, 3 insertions(+), 3 dele
> On Oct 12, 2015, at 15:38, Vlastimil Babka wrote:
>
> On 10/12/2015 04:40 AM, yalin wang wrote:
>> Remove unlikely(order), because we are sure order is not zero if
>> code reach here, also add if (page == NULL), only allocate page again if
>> __rmqueue_small
This patch add kc_offset_to_vaddr() and kc_vaddr_to_offset(),
the default version doesn't work on arm64, because arm64 kernel address
is below the PAGE_OFFSET, like module address and vmemmap address are
all below PAGE_OFFSET address.
Signed-off-by: yalin wang
---
arch/arm64/includ
> On Oct 6, 2015, at 19:09, Chanho Min wrote:
>
> Since kmap_atomic returns the pkmap address without a new mapping to
> fixmap for the page that is already mapped by kmap, It should be
> considered for the pkmap address in kmap_atomic_to_page.
>
> Signed-off-by: Chanho Min
> ---
> arch/arm/mm
This attribute can make init data to be into .initbss section,
this will make the data to be NO_BITS in vmlinux, can shrink the
Image file size, and speed up the boot up time.
Signed-off-by: yalin wang
---
arch/arm/kernel/vmlinux.lds.S | 2 +-
arch/arm/mm/init.c| 1
Remove unlikely(order), because we are sure order is not zero if
code reach here, also add if (page == NULL), only allocate page again if
__rmqueue_smallest() failed or alloc_flags & ALLOC_HARDER == 0
Signed-off-by: yalin wang
---
mm/page_alloc.c | 6 +++---
1 file changed, 3 insertions(+
Add ioremap_cache macro, because some code will test if this macro
is defined or not, and will generate a generric version if not defined,
for example, memremap.c do like this.
Signed-off-by: yalin wang
---
arch/arm64/include/asm/io.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch
> On Oct 10, 2015, at 10:00, Dave Goel wrote:
>
> Pardon the subject line! I think the PID algo. is actually pretty
> good and cheap.
>
>
> I just think that a very minor tweak could actually make it *actually* do
> what it always intended to do (that is, satisfy the PID-AIM listed below)!
>
> On Oct 10, 2015, at 00:10, Russell King - ARM Linux
> wrote:
>
> On Fri, Oct 09, 2015 at 11:55:09PM +0800, yalin wang wrote:
>> Add support for initrd on ARM arch, in case
>> mem= boot option change the memory size or the initrd are
>> not placed in low memory r
Add support for initrd on ARM arch, in case
mem= boot option change the memory size or the initrd are
not placed in low memory region, we need copy the initrd
to low memory region.
Signed-off-by: yalin wang
---
arch/arm/include/asm/fixmap.h | 1 +
arch/arm/kernel/setup.c | 70
hi
i have sync this branch,
but see my patch have been merged :)
seems correct.
Thanks
> On Oct 9, 2015, at 19:35, Mark Brown wrote:
>
> On Fri, Oct 09, 2015 at 03:51:22PM +0800, yalin wang wrote:
>> This patch change some bool variables in struct regmap { }
>> to be u
Add support for initrd on ARM arch, in case
mem= boot option change the memory size or the initrd are
not placed in low memory region, we need copy the initrd
to low memory region.
Signed-off-by: yalin wang
---
arch/arm/include/asm/fixmap.h | 1 +
arch/arm/kernel/setup.c | 72
This patch change some bool variables in struct regmap { }
to be u8 v : 1 type, so that we can shrink the sizeof of struct regmap.
Signed-off-by: yalin wang
---
drivers/base/regmap/internal.h | 39 +++
1 file changed, 19 insertions(+), 20 deletions(-)
diff
> On Oct 8, 2015, at 16:49, Christoffer Dall
> wrote:
>
> On Tue, Oct 06, 2015 at 01:16:52PM -0400, Mark Salter wrote:
>> On Tue, 2015-10-06 at 18:11 +0100, Mark Rutland wrote:
>>> On Tue, Sep 08, 2015 at 12:31:13PM +0100, Mark Rutland wrote:
Hi Mark,
On Mon, Aug 17, 2015 at 06:
This patch change some bool variables in struct regmap { }
to be u8 v : 1 type, so that we can shrink the sizeof of struct regmap.
Signed-off-by: yalin wang
---
drivers/base/regmap/internal.h | 21 ++---
1 file changed, 10 insertions(+), 11 deletions(-)
diff --git a/drivers
ok, i will send V2 patch
> On Oct 8, 2015, at 16:15, Mark Brown wrote:
>
> On Thu, Oct 08, 2015 at 12:24:02PM +0800, yalin wang wrote:
>
>> +u8 async : 1,
>
> Please use the kernel coding style, no spaces around the :.
--
To unsubscribe from this list: send the
Change HIGHMEM_ZONE to be the same as DMA_ZONE macro.
Signed-off-by: yalin wang
---
include/linux/vm_event_item.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 2b1cef8..b3bd7c7 100644
--- a/include
This patch change some bool variables in struct regmap { }
to be u8 v : 1 type, so that we can shrink the sizeof of struct regmap.
Signed-off-by: yalin wang
---
drivers/base/regmap/internal.h | 21 ++---
1 file changed, 10 insertions(+), 11 deletions(-)
diff --git a/drivers
This patch make a little change to lookup_bh_lru() function
to use memmove() to set new buffer_head,
better performance for some platforms.
Signed-off-by: yalin wang
---
fs/buffer.c | 8 +++-
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/fs/buffer.c b/fs/buffer.c
index
This patch use swap method to implement bh_lru_install,
it works like this:
swap new and [0] first, update old=[0],
then compare old and [1],
if old != new_bh && old != NULL, swap old and [1],
then start the next compare,
otherwise stop the compare.
Signed-off-by: yalin wang
---
fs/
why not change like this:
diff --git a/fs/buffer.c b/fs/buffer.c
index 82283ab..d6769f1 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1287,40 +1287,31 @@ static inline void check_irqs_on(void)
*/
static void bh_lru_install(struct buffer_head *bh)
{
- struct buffer_head *evictee = NULL;
> On Sep 15, 2015, at 16:36, 慕冬亮 wrote:
>
> First, my linux kernel is Linux 114-212-83-136 4.1.0-2-amd64.
> Second, I copy /bin/cat in system to mycat , and see the address space
> layout below.
>
> mdl@114-212-83-136:~$ ./mycat /proc/self/maps
> 0040-0040c000 r-xp 08:03 1046776
>
ok
i will send a V2 patch for this change.
> On Sep 2, 2015, at 18:24, Will Deacon wrote:
>
> On Sun, Aug 30, 2015 at 07:19:59AM +0100, yalin wang wrote:
>> This patch add kc_offset_to_vaddr() and kc_vaddr_to_offset(),
>> the default version doesn't work on arm64, be
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