On Mon, 5 Nov 2012, 锟斤拷锟斤拷 wrote:
> I guarantee that x86-64 don't use gs register here. run test again锟斤拷
> Maybe there is some optimizations for __this_cpu_read call on x86-64锟斤拷 not
> sure.
There is no optimization that I know of unless the compiler eliminated the
__this_cpu_read completely. gs
On Sat, 28 Jul 2012, Joonsoo Kim wrote:
> Subject and commit log are changed from v1.
That looks a bit better. But the changelog could use more cleanup and
clearer expression.
> @@ -2490,25 +2492,17 @@ static void __slab_free(struct kmem_cache *s, struct
> page *page,
> return;
On Sat, 28 Jul 2012, Joonsoo Kim wrote:
> move_pages() syscall may return success in case that
> do_move_page_to_node_array return positive value which means migration failed.
Nope. It only means that the migration for some pages has failed. This may
still be considered successful for the app if
On Sat, 28 Jul 2012, Joonsoo Kim wrote:
> do_migrate_pages() can return the number of pages not migrated.
> Because migrate_pages() syscall return this value directly,
> migrate_pages() syscall may return the number of pages not migrated.
> In fail case in migrate_pages() syscall, we should return
On Sat, 28 Jul 2012, JoonSoo Kim wrote:
> 2012/7/28 Christoph Lameter :
> > On Sat, 28 Jul 2012, Joonsoo Kim wrote:
> >
> >> Subject and commit log are changed from v1.
> >
> > That looks a bit better. But the changelog could use more cleanup and
> >
On Sat, 28 Jul 2012, JoonSoo Kim wrote:
> 2012/7/28 Christoph Lameter :
> > On Sat, 28 Jul 2012, Joonsoo Kim wrote:
> >
> >> move_pages() syscall may return success in case that
> >> do_move_page_to_node_array return positive value which means migration
> &g
On Sat, 28 Jul 2012, JoonSoo Kim wrote:
> 2012/7/28 Christoph Lameter :
> > On Sat, 28 Jul 2012, Joonsoo Kim wrote:
> >
> >> do_migrate_pages() can return the number of pages not migrated.
> >> Because migrate_pages() syscall return this value directly,
> >&
On Tue, 31 Jul 2012, JoonSoo Kim wrote:
> In man page, there is following statement.
> "status is an array of integers that return the status of each page. The
> array
> only contains valid values if move_pages() did not return an error."
> And current implementation of move_pages() syscall doe
On Mon, 24 Sep 2012, Glauber Costa wrote:
> But that is orthogonal, isn't it? People will still expect to see it in
> the old slabinfo file.
The current scheme for memory statistics is
/proc/meminfo contains global counters
/sys/devices/system/node/nodeX/meminfo
contains node specific counters
On Mon, 24 Sep 2012, Glauber Costa wrote:
> The reason I say it is orthogonal, is that people will still want to see
> their caches in /proc/slabinfo, regardless of wherever else they'll be.
> It was a requirement from Pekka in one of the first times I posted this,
> IIRC.
They want to see total
On Mon, 24 Sep 2012, Glauber Costa wrote:
> > So Christoph is proposing that the new caches appear somewhere under
> > the cgroups directory and /proc/slabinfo includes aggregated counts,
> > right? I'm certainly OK with that.
> >
> Just for clarification, I am not sure about the aggregate counts
On Mon, 24 Sep 2012, Pekka Enberg wrote:
> So Christoph is proposing that the new caches appear somewhere under
> the cgroups directory and /proc/slabinfo includes aggregated counts,
> right? I'm certainly OK with that.
Caches would appear either in cgroup/slabinfo (which would have the same
form
On Tue, 25 Sep 2012, Glauber Costa wrote:
> No cache should ever pass those as a creation flags. We can just ignore
> this bit if it happens to be passed (such as when duplicating a cache in
> the kmem memcg patches)
Acked-by: Christoph Lameter
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On Tue, 25 Sep 2012, Glauber Costa wrote:
> >> 1) Do like the events mechanism and allocate this in a separate
> >> structure. Add a pointer chase in the access, and I don't think it helps
> >> much because it gets allocated anyway. But we could at least
> >> defer it to the time when we limit the
On Tue, 25 Sep 2012, David Rientjes wrote:
> Nack, this is already handled by CREATE_MASK in the mm/slab.c allocator;
CREATE_MASK defines legal flags that can be specified. Other flags cause
and error. This is about flags that are internal that should be ignored
when specified.
I think it makes
off-by: Christoph Lameter
Index: linux/mm/slub.c
===
--- linux.orig/mm/slub.c2012-10-30 10:23:33.040649727 -0500
+++ linux/mm/slub.c 2012-10-30 10:25:03.401312250 -0500
@@ -1874,10 +1874,10 @@ redo:
*
* This function m
On Fri, 26 Oct 2012, JoonSoo Kim wrote:
> 2012/10/25 Christoph Lameter :
> > On Wed, 24 Oct 2012, Pekka Enberg wrote:
> >
> >> So I hate this patch with a passion. We don't have any fastpaths in
> >> mm/slab_common.c nor should we. Those should be allo
On Fri, 23 Aug 2013, Tejun Heo wrote:
> * It would be a lot easier to route the patches if each had cc's to
> the maintainers of the affected subsystems.
So the drivers patch needs to CC all driver maintainers?
There must be some easier way to get this done.
> * Dunno what's the convention ar
On Mon, 26 Aug 2013, Steven Rostedt wrote:
> As Tejun said, each commit needs its own change log. Never expect a
> change lgo from another commit to be read for changes in this commit.
I can copy the intro into each of the patches?
> > Index: linux/kernel/time/tick-oneshot.c
> > Index: linux/ker
V1->V2:
- Break up larger patches.
- CC maintainers
- Include description in each patch.
__get_cpu_var() is used for multiple purposes in the kernel source. One of them
is
address calculation via the form &__get_cpu_var(x). This calculates the address
for
the instance of the percpu variable o
Much of the work was done by this coccinelle script.
Wont catch everything (since coccinelle aborts when it no longer can make
sense out of macros, sigh) but it covers a lot of ground.
Signed-off-by: Christoph Lameter
Index: linux/scripts/coccinelle/convert/__get_cpu_var.cocci
__verify_pcpu_ptr() will cause a compilation failure if the type of the
pointer is a pointer to a fixed array of objects. Adding zero to the
pointer converts the type of pointer to that pointing to a single
object of the array.
Signed-off-by: Christoph Lameter
Index: linux/include/linux/percpu
I think this patch already exists in one form or another in some x86 tree.
Signed-off-by: Christoph Lameter
Index: linux/arch/x86/include/asm/debugreg.h
===
--- linux.orig/arch/x86/include/asm/debugreg.h 2013-08-06 13:52
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
I think this patch already exists in one form or another in some x86 tree.
Signed-off-by: Christoph Lameter
Index: linux/arch/x86/include/asm/debugreg.h
===
--- linux.orig/arch/x86/include/asm/debugreg.h 2013-08-06 13:52
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
V1->V2:
- Break up larger patches.
- CC maintainers
- Include description in each patch.
__get_cpu_var() is used for multiple purposes in the kernel source. One of them
is
address calculation via the form &__get_cpu_var(x). This calculates the address
for
the instance of the percpu variable o
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
__verify_pcpu_ptr() will cause a compilation failure if the type of the
pointer is a pointer to a fixed array of objects. Adding zero to the
pointer converts the type of pointer to that pointing to a single
object of the array.
Signed-off-by: Christoph Lameter
Index: linux/include/linux/percpu
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
Much of the work was done by this coccinelle script.
Wont catch everything (since coccinelle aborts when it no longer can make
sense out of macros, sigh) but it covers a lot of ground.
Signed-off-by: Christoph Lameter
Index: linux/scripts/coccinelle/convert/__get_cpu_var.cocci
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
I think this patch already exists in one form or another in some x86 tree.
Signed-off-by: Christoph Lameter
Index: linux/arch/x86/include/asm/debugreg.h
===
--- linux.orig/arch/x86/include/asm/debugreg.h 2013-08-06 13:52
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
__verify_pcpu_ptr() will cause a compilation failure if the type of the
pointer is a pointer to a fixed array of objects. Adding zero to the
pointer converts the type of pointer to that pointing to a single
object of the array.
Signed-off-by: Christoph Lameter
Index: linux/include/linux/percpu
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
V1->V2:
- Break up larger patches.
- CC maintainers
- Include description in each patch.
__get_cpu_var() is used for multiple purposes in the kernel source. One of them
is
address calculation via the form &__get_cpu_var(x). This calculates the address
for
the instance of the percpu variable o
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
__get_cpu_var() is used for multiple purposes in the kernel source. One of them
is
address calculation via the form &__get_cpu_var(x). This calculates the address
for
the instance of the percpu variable of the current processor based on an offset.
Others usage cases are for storing and retrievin
__get_cpu_var() is used for multiple purposes in the kernel source. One of them
is
address calculation via the form &__get_cpu_var(x). This calculates the address
for
the instance of the percpu variable of the current processor based on an offset.
Others usage cases are for storing and retrievin
Sorry about the dups. I had an " missing in an CC statement which caused
the mailer to continue to allocate memory until it went oom.
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More majordomo info at http://vger
No user is left in the kernel source tree. Therefore we can
drop the definitions.
Signed-off-by: Christoph Lameter
Index: linux/include/asm-generic/percpu.h
===
--- linux.orig/include/asm-generic/percpu.h 2013-08-26 14:40
__get_cpu_var() is used for multiple purposes in the kernel source. One of them
is
address calculation via the form &__get_cpu_var(x). This calculates the address
for
the instance of the percpu variable of the current processor based on an offset.
Others usage cases are for storing and retrievin
__get_cpu_var() is used for multiple purposes in the kernel source. One of them
is
address calculation via the form &__get_cpu_var(x). This calculates the address
for
the instance of the percpu variable of the current processor based on an offset.
Others usage cases are for storing and retrievin
Much of the work was done by this coccinelle script.
Wont catch everything (since coccinelle aborts when it no longer can make
sense out of macros, sigh) but it covers a lot of ground.
Signed-off-by: Christoph Lameter
Index: linux/scripts/coccinelle/convert/__get_cpu_var.cocci
__get_cpu_var() is used for multiple purposes in the kernel source. One of them
is
address calculation via the form &__get_cpu_var(x). This calculates the address
for
the instance of the percpu variable of the current processor based on an offset.
Others usage cases are for storing and retrievin
__get_cpu_var() is used for multiple purposes in the kernel source. One of them
is
address calculation via the form &__get_cpu_var(x). This calculates the address
for
the instance of the percpu variable of the current processor based on an offset.
Others usage cases are for storing and retrievin
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Chris
On Mon, 26 Aug 2013, Chris Metcalf wrote:
> On 8/26/2013 4:56 PM, Christoph Lameter wrote:
> > Index: linux/arch/tile/include/asm/irqflags.h
> > ===
> > --- linux.orig/arch/tile/include/asm/irqflags.h
On Tue, 27 Aug 2013, Stephen Rothwell wrote:
> Hi Christoph,
>
> On Fri, 23 Aug 2013 19:01:56 + Christoph Lameter wrote:
> >
> > At the end of the patchset all uses of __get_cpu_var have been removed so
> > the macro is removed too.
>
> However you get thes
On Tue, 27 Aug 2013, Geert Uytterhoeven wrote:
> On Mon, Aug 26, 2013 at 10:44 PM, Christoph Lameter wrote:
> > __get_cpu_var() is used for multiple purposes in the kernel source. One of
> > them is
> > address calculation via the form &__get_cpu_var(x). This calcul
On Wed, 28 Aug 2013, Vineet Gupta wrote:
> On 08/27/2013 08:51 PM, Christoph Lameter wrote:
> > On Tue, 27 Aug 2013, Vineet Gupta wrote:
> >
> >> The other thread about merging logistics doesn't seem to have concluded
> >> yet so for
> >> now I&#x
On Wed, 28 Aug 2013, Chris Metcalf wrote:
> Taken into the tile tree, with one extra change; in
> arch/tile/kernel/messaging.c, using "__this_cpu_read(msg_state)"
> generated warnings ("'pscr_ret__.opaque[1u]' is used uninitialized in
> this function", etc), since msg_state is a struct, so I chang
y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph Lameter
Index: linux/arch/tile/in
On Fri, 9 Aug 2013, Gilad Ben-Yossef wrote:
> If the code does not consider setting the vmstat_cpus bit in the mask
> unless we are running
> on a CPU in tickless state, than we will (almost) never set
> vmstat_cpus since we will (almost)
> never be tickless in a deferrable work -
Sorry never got
I think this patch already exists in one form or another in some x86 tree.
Signed-off-by: Christoph Lameter
Index: linux/arch/x86/include/asm/debugreg.h
===
--- linux.orig/arch/x86/include/asm/debugreg.h 2013-08-06 13:52
V2->V3:
- Numerous corrections
- Patch flow will be through individual maintainers tree. Rest will be merged
via percpu tree.
- Break up the drivers patch into patches for individual maintainer domains
- The patches are available via git from git://gentwo.org/christoph gcv
- Drop tile arch portio
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Acked-by: James Hogan
Sign
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
rinas
Signed-off-by: Christoph Lameter
Index: linux/arch/arm/kernel/hw_breakpoint.c
===
--- linux.orig/arch/arm/kernel/hw_breakpoint.c 2013-08-26 13:48:40.956794980
-0500
+++ linux/arch/arm/kernel/hw_breakpoint.c 2013-08-26 13:48
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
__verify_pcpu_ptr() will cause a compilation failure if the type of the
pointer is a pointer to a fixed array of objects. Adding zero to the
pointer converts the type of pointer to that pointing to a single
object of the array.
Signed-off-by: Christoph Lameter
Index: linux/include/linux/percpu
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
Much of the work was done by this coccinelle script.
Wont catch everything (since coccinelle aborts when it no longer can make
sense out of macros, sigh) but it covers a lot of ground.
Signed-off-by: Christoph Lameter
Index: linux/scripts/coccinelle/convert/__get_cpu_var.cocci
__get_cpu_var() is used for multiple purposes in the kernel source. One of them
is
address calculation via the form &__get_cpu_var(x). This calculates the address
for
the instance of the percpu variable of the current processor based on an offset.
Other use cases are for storing and retrieving d
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Acked-by: Vineet Gupta
Sign
iller
Signed-off-by: Christoph Lameter
Index: linux/arch/sparc/include/asm/cpudata_32.h
===
--- linux.orig/arch/sparc/include/asm/cpudata_32.h 2013-08-22
14:34:54.0 -0500
+++ linux/arch/sparc/include/asm/cpudata_32.h 2013-08-2
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
stens
Signed-off-by: Christoph Lameter
Index: linux/arch/s390/include/asm/irq.h
===
--- linux.orig/arch/s390/include/asm/irq.h 2013-08-22 14:49:17.339583428
-0500
+++ linux/arch/s390/include/asm/irq.h 2013-08-22 14:49:17.327583548
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
tvedt
Signed-off-by: Christoph Lameter
Index: linux/arch/avr32/kernel/kprobes.c
===
--- linux.orig/arch/avr32/kernel/kprobes.c 2013-08-26 13:25:18.0
-0500
+++ linux/arch/avr32/kernel/kprobes.c 2013-08-26 13:27:09.75848
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
No user is left in the kernel source tree. Therefore we can
drop the definitions.
[Patch should not be merged until all the replacement patches have been
merged. Probably this means hold until the 3.13 merge window]
Signed-off-by: Christoph Lameter
Index: linux/include/asm-generic/percpu.h
o a per cpu variable
DEFINE_PER_CPU(int, y)
__get_cpu_var(y) = x;
Converts to
this_cpu_write(y, x);
6. Increment/Decrement etc of a per cpu variable
DEFINE_PER_CPU(int, y);
__get_cpu_var(y)++
Converts to
this_cpu_inc(y)
Signed-off-by: Christoph La
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