On 02/24/2014 07:33 PM, Michael Ellerman wrote:
On Fri, 2014-14-02 at 22:02:09 UTC, Cody P Schafer wrote:
"H_GetPerformanceCounterInfo" (refered to as hv_gpci or just gpci from
here on) is an interface to retrieve specific performance counters and
other data from the hypervisor. A
On 02/24/2014 07:33 PM, Michael Ellerman wrote:
On Fri, 2014-14-02 at 22:02:05 UTC, Cody P Schafer wrote:
Add PMU_RANGE_ATTR() and PMU_RANGE_RESV() (for reserved areas) which
generate functions to extract the relevent bits from
event->attr.config{,1,2} for use by sw-like pmus where the
move into the cpuidle driver, essentially by
adjusting target_residency to the specified value. At the moment,
target_residency is not exposed by cpuidle's sysfs, so there isn't a
drop in replacement for this.
Signed-off-by: Cody P Schafer
---
arch/powerpc/kernel/sysfs.c | 6 ++
1 fi
Whoops, should be "[Patch v2.1 10/11]"
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Signed-off-by: Cody P Schafer
---
arch/powerpc/perf/Makefile | 2 ++
arch/powerpc/platforms/pseries/Kconfig | 12
2 files changed, 14 insertions(+)
diff --git a/arch/powerpc/perf/Makefile b/arch/powerpc/perf/Makefile
index 60d71ee..f9c083a 100644
--- a/arch/powerpc
On 02/16/2014 11:11 PM, Michael Ellerman wrote:
On Fri, 2014-02-14 at 16:25 -0800, Cody P Schafer wrote:
On Fri, Feb 14, 2014 at 04:32:13PM -0600, Scott Wood wrote:
On Fri, 2014-02-14 at 14:02 -0800, Cody P Schafer wrote:
diff --git a/arch/powerpc/platforms/Kconfig.cputype
b/arch/powerpc
On Fri, Feb 14, 2014 at 04:32:13PM -0600, Scott Wood wrote:
> On Fri, 2014-02-14 at 14:02 -0800, Cody P Schafer wrote:
> > Signed-off-by: Cody P Schafer
> > ---
> > arch/powerpc/perf/Makefile | 2 ++
> > arch/powerpc/platforms/Kconfig.cputype | 6 +++
shows that no one is using bin_attrs in a named attribute
group yet, so we can do this without breaking anything in usespace.
Note that I do not add is_visible() support to
bin_attributes, though that could be done as well.
Signed-off-by: Cody P Schafer
---
fs/sysfs/group.c | 7 +--
1 file
Add PMU_RANGE_ATTR() and PMU_RANGE_RESV() (for reserved areas) which
generate functions to extract the relevent bits from
event->attr.config{,1,2} for use by sw-like pmus where the
'config{,1,2}' values don't map directly to hardware registers.
Signed-off-by: Cody P Schafer
Signed-off-by: Cody P Schafer
---
arch/powerpc/include/asm/hvcall.h | 5 +
1 file changed, 5 insertions(+)
diff --git a/arch/powerpc/include/asm/hvcall.h
b/arch/powerpc/include/asm/hvcall.h
index d8b600b..652f7e4 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm
beled)
- provide and event_24x7_request() that wraps single_24x7_request()
- probably some other small fixes I'm forgetting.
Cody P Schafer (11):
perf: add PMU_RANGE_ATTR() helper for use by sw-like pmus
perf core: export swevent hrtimer helpers
sysfs: create bin_attributes under the
This provides a basic interface between hv_24x7 and perf. Similar to
the one provided for gpci, it lacks transaction support and does not
list any events.
Signed-off-by: Cody P Schafer
---
arch/powerpc/perf/hv-24x7.c | 491
1 file changed, 491
Signed-off-by: Cody P Schafer
---
arch/powerpc/perf/Makefile | 2 ++
arch/powerpc/platforms/Kconfig.cputype | 6 ++
2 files changed, 8 insertions(+)
diff --git a/arch/powerpc/perf/Makefile b/arch/powerpc/perf/Makefile
index 60d71ee..f9c083a 100644
--- a/arch/powerpc/perf
gpci and 24x7 expose some device specific attributes. Add some
documentation for them.
Signed-off-by: Cody P Schafer
---
.../testing/sysfs-bus-event_source-devices-hv_24x7 | 22 +++
.../testing/sysfs-bus-event_source-devices-hv_gpci | 43 ++
2 files changed, 65
This provides a basic link between perf and hv_gpci. Notably, it does
not yet support transactions and does not list any events (they can
still be manually composed).
Signed-off-by: Cody P Schafer
---
arch/powerpc/perf/hv-gpci.c | 290
1 file changed
Signed-off-by: Cody P Schafer
---
arch/powerpc/perf/hv-common.c | 39 +++
arch/powerpc/perf/hv-common.h | 17 +
2 files changed, 56 insertions(+)
create mode 100644 arch/powerpc/perf/hv-common.c
create mode 100644 arch/powerpc/perf/hv
er).
This method of obtaining performance counters from the hypervisor is
intended to paritialy replace the gpci interface.
Signed-off-by: Cody P Schafer
---
arch/powerpc/perf/hv-24x7.h | 239
1 file changed, 239 insertions(+)
create mode 100644 ar
"H_GetPerformanceCounterInfo" (refered to as hv_gpci or just gpci from
here on) is an interface to retrieve specific performance counters and
other data from the hypervisor. All outputs have a fixed format (and
are represented as structs in this patch).
Signed-off-by: Cody P Schafer
Export the swevent hrtimer helpers currently only used in events/core.c
to allow the addition of architecture specific sw-like pmus.
Signed-off-by: Cody P Schafer
---
include/linux/perf_event.h | 5 -
kernel/events/core.c | 8
2 files changed, 8 insertions(+), 5 deletions
diff --git a/arch/powerpc/include/asm/hv_gpci.h
b/arch/powerpc/include/asm/hv_gpci.h
Any reason this can't just live in arch/powerpc/perf ?
Nope, it should be able to keep the header there for now. As this
interface allows determination of the HW topology, we may have some code
that expo
On 01/31/2014 09:58 PM, Michael Ellerman wrote:
On Thu, 2014-16-01 at 23:53:50 UTC, Cody P Schafer wrote:
"H_GetPerformanceCounterInfo" (refered to as hv_gpci or just gpci from
here on) is an interface to retrieve specific performance counters and
other data from the hypervisor. A
On 01/31/2014 09:58 PM, Michael Ellerman wrote:
On Thu, 2014-16-01 at 23:53:49 UTC, Cody P Schafer wrote:
Signed-off-by: Cody P Schafer
---
arch/powerpc/include/asm/hvcall.h | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/hvcall.h
b/arch
On 01/31/2014 09:58 PM, Michael Ellerman wrote:
On Thu, 2014-16-01 at 23:53:47 UTC, Cody P Schafer wrote:
Add PMU_RANGE_ATTR() and PMU_RANGE_RESV() (for reserved areas) which
generate functions to extract the relevent bits from
event->attr.config{,1,2} for use by sw-like pmus where the
On 01/31/2014 09:58 PM, Michael Ellerman wrote:
On Thu, 2014-16-01 at 23:53:52 UTC, Cody P Schafer wrote:
This provides a basic link between perf and hv_gpci. Notably, it does
not yet support transactions and does not list any events (they can
still be manually composed).
What are the plans
On 01/22/2014 04:11 PM, Cody P Schafer wrote:
On 01/21/2014 05:32 PM, Michael Ellerman wrote:
On Thu, 2014-01-16 at 15:53 -0800, Cody P Schafer wrote:
These patches add basic pmus for 2 powerpc hypervisor interfaces to obtain
performance counters: gpci ("get performance counter info"
On 01/21/2014 05:32 PM, Michael Ellerman wrote:
> On Thu, 2014-01-16 at 15:53 -0800, Cody P Schafer wrote:
>> These patches add basic pmus for 2 powerpc hypervisor interfaces to obtain
>> performance counters: gpci ("get performance counter info") and 24x7.
>>
&g
lly do not
generate any interrupts. This makes them in some regards similar to software
counters, and as a result their implimentation shares some common code (which
an initial patch exposes) with the sw counters.
There is ongoing work to support transactions for each of these pmus.
Cody P Schafer (
Export the swevent hrtimer helpers currently only used in events/core.c
to allow the addition of architecture specific sw-like pmus.
Signed-off-by: Cody P Schafer
---
include/linux/perf_event.h | 5 -
kernel/events/core.c | 8
2 files changed, 8 insertions(+), 5 deletions
"H_GetPerformanceCounterInfo" (refered to as hv_gpci or just gpci from
here on) is an interface to retrieve specific performance counters and
other data from the hypervisor. All outputs have a fixed format (and
are represented as structs in this patch).
Signed-off-by: Cody P Schafer
This provides a basic interface between hv_24x7 and perf. Similar to
the one provided for gpci, it lacks transaction support and does not
list any events.
Signed-off-by: Cody P Schafer
---
arch/powerpc/perf/hv-24x7.c | 354
1 file changed, 354
er).
This method of obtaining performance counters from the hypervisor is
intended to paritialy replace the gpci interface.
Signed-off-by: Cody P Schafer
---
arch/powerpc/include/asm/hv_24x7.h | 239 +
1 file changed, 239 insertions(+)
create mode 100644 ar
Signed-off-by: Cody P Schafer
---
arch/powerpc/include/asm/hvcall.h | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/hvcall.h
b/arch/powerpc/include/asm/hvcall.h
index d8b600b..48d6efa 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch
This provides a basic link between perf and hv_gpci. Notably, it does
not yet support transactions and does not list any events (they can
still be manually composed).
Signed-off-by: Cody P Schafer
---
arch/powerpc/perf/hv-gpci.c | 235
1 file changed
Signed-off-by: Cody P Schafer
---
arch/powerpc/perf/Makefile | 2 ++
arch/powerpc/platforms/Kconfig.cputype | 6 ++
2 files changed, 8 insertions(+)
diff --git a/arch/powerpc/perf/Makefile b/arch/powerpc/perf/Makefile
index 60d71ee..5e5fcd2 100644
--- a/arch/powerpc/perf
Add PMU_RANGE_ATTR() and PMU_RANGE_RESV() (for reserved areas) which
generate functions to extract the relevent bits from
event->attr.config{,1,2} for use by sw-like pmus where the
'config{,1,2}' values don't map directly to hardware registers.
Signed-off-by: Cody P Schafer
Commit-ID: 88aca8d966a1349631a0946ed77c7ed360519ed4
Gitweb: http://git.kernel.org/tip/88aca8d966a1349631a0946ed77c7ed360519ed4
Author: Cody P Schafer
AuthorDate: Wed, 8 Jan 2014 08:43:51 -0800
Committer: Arnaldo Carvalho de Melo
CommitDate: Mon, 13 Jan 2014 10:06:24 -0300
tools perf
On 01/10/2014 01:36 AM, Peter Zijlstra wrote:
On Thu, Jan 09, 2014 at 03:51:31PM -0800, Cody P Schafer wrote:
There are actually 2 things about software events that allow us to
merge them: they never fail to schedule _and_ they have transaction
handlers we can (and do, when they are added to
There are actually 2 things about software events that allow us to
merge them: they never fail to schedule _and_ they have transaction
handlers we can (and do, when they are added to !sw groups) ignore. Note
both of these in the comment on adding sw events to !sw groups.
Signed-off-by: Cody P
Again, note that the behavior of task_ctx_nr < 0 is an exception.
Signed-off-by: Cody P Schafer
---
kernel/events/core.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/kernel/events/core.c b/kernel/events/core.c
index e9f60d0..159ef12 100644
--- a/kernel/events/cor
Context numbers less than 0 are treated specially within the events
code, add a comment to document this.
Signed-off-by: Cody P Schafer
---
include/linux/sched.h | 4
1 file changed, 4 insertions(+)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 53f97eb..f574820 100644
These patches only add/adjust comments.
Cody P Schafer (3):
perf: comment on usage of perf_invalid_context
perf: clarify comment regarding event merging
perf: clarify comment regarding perf_pmu_contexts
include/linux/sched.h | 4
kernel/events/core.c | 8 +---
2 files changed, 9
s/temr/term/
Signed-off-by: Cody P Schafer
---
tools/perf/util/pmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index c232d8d..1f760a9 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -406,7 +406,7 @@ static
On 11/07/2013 01:38 PM, Andrew Morton wrote:
On Wed, 6 Nov 2013 17:42:30 -0800 Cody P Schafer
wrote:
The iterator rbtree_postorder_for_each_entry_safe() relies on pointer
underflow behavior when testing for loop termination. In particular
it expects that
&rb_entry(NULL, type, f
On 11/07/2013 03:51 AM, Michel Lespinasse wrote:
On Wed, Nov 6, 2013 at 5:42 PM, Cody P Schafer wrote:
From: Jan Kara
[...]
+#define rb_entry_safe(ptr, type, member) \
+ ({ typeof(ptr) ptr = (ptr); \
+ ptr ? rb_entry(ptr, type, member) : NULL
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
fs/ubifs/debug.c| 22 +++---
fs/ubifs/log.c | 21 ++---
fs/ubifs/orphan.c
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
drivers/mtd/ubi/attach.c | 49 +++-
drivers/mtd/ubi/wl.c | 25
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of using repeated rb_erase() calls
Signed-off-by: Cody P Schafer
---
arch/sh/kernel/dwarf.c | 18 --
1 file changed, 4 insertions(+), 14 deletions(-)
diff --git a/arch/sh/kernel/dwarf.c b/arch/sh/kernel
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
net/netfilter/ipset/ip_set_hash_netiface.c | 27 ---
1 file changed, 4 insertions(+), 23
New in v2:
1: Jan Kara's fix for rbtree_postorder_for_each_entry_safe() for when gcc tries
to optimize it.
2,3: test the above mentioned macro and reorder the test struct to catch anther
class of errors.
Unchanged from v1:
4-11: use the postorder_for_each() in various locations.
--
C
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
fs/ext4/block_validity.c | 33 -
fs/ext4/dir.c| 35
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
fs/jffs2/nodelist.c | 28 ++--
fs/jffs2/readinode.c | 26 +++---
2 files
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
fs/ext3/dir.c | 36 +---
1 file changed, 5 insertions(+), 31 deletions(-)
diff --git
Avoid making the rb_node the first entry to catch some bugs around NULL
checking the rb_node.
Signed-off-by: Cody P Schafer
---
lib/rbtree_test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/rbtree_test.c b/lib/rbtree_test.c
index 31dd4cc..df6c125 100644
--- a/lib
ome gcc versions (e.g. 4.3.4) assume the above expression can never
be equal to NULL. The net result is an oops because the iteration is not
properly terminated.
Fix the problem by modifying the iterator to avoid pointer underflows.
Signed-off-by: Jan Kara
Signed-off-by: Cody P Schafer
---
includ
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
kernel/trace/trace_stat.c | 42 ++
1 file changed, 6 insertions(+), 36
Signed-off-by: Cody P Schafer
---
lib/rbtree_test.c | 11 +++
1 file changed, 11 insertions(+)
diff --git a/lib/rbtree_test.c b/lib/rbtree_test.c
index df6c125..8b3c9dc 100644
--- a/lib/rbtree_test.c
+++ b/lib/rbtree_test.c
@@ -114,6 +114,16 @@ static int black_path_count(struct rb_node
Signed-off-by: Cody P Schafer
---
lib/rbtree_test.c | 11 +++
1 file changed, 11 insertions(+)
diff --git a/lib/rbtree_test.c b/lib/rbtree_test.c
index df6c125..8b3c9dc 100644
--- a/lib/rbtree_test.c
+++ b/lib/rbtree_test.c
@@ -114,6 +114,16 @@ static int black_path_count(struct rb_node
On 11/05/2013 02:56 PM, Jan Kara wrote:
On Tue 05-11-13 22:57:55, Jan Kara wrote:
>On Tue 05-11-13 02:05:44, Cody P Schafer wrote:
> >On 11/04/2013 05:40 PM, Cody P Schafer wrote:
> > >Provide a new helper called rb_next_postorder_entry() to perform NULL
> >
On 11/04/2013 05:40 PM, Cody P Schafer wrote:
> Provide a new helper called rb_next_postorder_entry() to perform NULL
> checks and container_of() coversions and use it in
> rbtree_for_each_entry_safe() to fix oopses that occur when rb_node is
> not the first element in the entry
Avoid making the rb_node the first entry to catch some bugs around NULL
checking the rb_node.
Signed-off-by: Cody P Schafer
---
lib/rbtree_test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/rbtree_test.c b/lib/rbtree_test.c
index 31dd4cc..df6c125 100644
--- a/lib
().
Signed-off-by: Cody P Schafer
---
include/linux/rbtree.h | 20 +++-
lib/rbtree.c | 2 --
2 files changed, 15 insertions(+), 7 deletions(-)
diff --git a/include/linux/rbtree.h b/include/linux/rbtree.h
index aa870a4..630eedb 100644
--- a/include/linux/rbtree.h
+++ b
On 11/04/2013 04:45 PM, Jan Kara wrote:
On Mon 04-11-13 15:26:38, Jan Kara wrote:
On Fri 01-11-13 15:38:50, Cody P Schafer wrote:
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Thanks. I&#x
On 11/01/2013 07:45 PM, Steven Rostedt wrote:
On Fri, 1 Nov 2013 15:38:46 -0700
Cody P Schafer wrote:
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
kernel
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
kernel/trace/trace_stat.c | 42 ++
1 file changed, 6 insertions(+), 36
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
fs/ubifs/debug.c| 22 +++---
fs/ubifs/log.c | 21 ++---
fs/ubifs/orphan.c
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
fs/ext4/block_validity.c | 33 -
fs/ext4/dir.c| 35
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
net/netfilter/ipset/ip_set_hash_netiface.c | 27 ---
1 file changed, 4 insertions(+), 23
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
fs/ext3/dir.c | 36 +---
1 file changed, 5 insertions(+), 31 deletions(-)
diff --git
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of using repeated rb_erase() calls
Signed-off-by: Cody P Schafer
---
arch/sh/kernel/dwarf.c | 18 --
1 file changed, 4 insertions(+), 14 deletions(-)
diff --git a/arch/sh/kernel/dwarf.c b/arch/sh/kernel
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
drivers/mtd/ubi/attach.c | 49 +++-
drivers/mtd/ubi/wl.c | 25
Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree
Signed-off-by: Cody P Schafer
---
fs/jffs2/nodelist.c | 28 ++--
fs/jffs2/readinode.c | 26 +++---
2 files
Add return value documentation and clarify the units of the @size
parameter.
Signed-off-by: Cody P Schafer
---
include/asm-generic/bitops/find.h | 12 ++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/include/asm-generic/bitops/find.h
b/include/asm-generic/bitops
o function
names.
call trace->open() (and do a few other fixups copied from the normal dump
path) to make the output more intelligible.
Signed-off-by: Cody P Schafer
---
kernel/trace/trace.c | 11 +++
1 file changed, 11 insertions(+)
diff --git a/kernel/trace/trace.c b/kernel/trace/
On 09/27/2013 06:16 AM, Kirill A. Shutemov wrote:
With split page table lock for PMD level we can't hold
mm->page_table_lock while updating nr_ptes.
Let's convert it to atomic_t to avoid races.
---
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 84e0c56e1e..99f19e85
@@ -1802,11 +1802,11 @@ static inline unsigned interleave_nid(struct mempolicy
*pol,
/*
* Return the bit number of a random bit set in the nodemask.
- * (returns -1 if nodemask is empty)
+ * (returns NUMA_NO_NOD if nodemask is empty)
s/NUMA_NO_NOD/NUMA_NO_NODE/
*/
int node_random
On 09/11/2013 04:08 PM, Cody P Schafer wrote:
On 09/11/2013 03:08 PM, Dave Hansen wrote:
I really don't know where the:
batch /= 4; /* We effectively *= 4 below */
...
batch = rounddown_pow_of_two(batch + batch/2) - 1;
came from. The round down code at *MOST* d
On 09/11/2013 03:08 PM, Dave Hansen wrote:
I really don't know where the:
batch /= 4; /* We effectively *= 4 below */
...
batch = rounddown_pow_of_two(batch + batch/2) - 1;
came from. The round down code at *MOST* does a *= 1.5, but
*averages* out to be just
On 08/14/2013 02:14 PM, Seth Jennings wrote:
>An existing tool would not work
>with this patch (plus boot option) since it would not know how to
>show/hide things. It lets_part_ of those existing tools get reused
>since they only have to be taught how to show/hide things.
>
>I'd find this reall
On 08/06/2013 01:22 PM, Chris Metcalf wrote:
[...]
/**
+ * schedule_on_each_cpu - execute a function synchronously on each online CPU
+ * @func: the function to call
+ *
+ * schedule_on_each_cpu() executes @func on each online CPU using the
+ * system workqueue and blocks until all CPUs have
On 08/01/2013 02:18 AM, Xishi Qiu wrote:
__offline_pages()
start_isolate_page_range()
set_migratetype_isolate()
set_pageblock_migratetype() -> this pageblock will be marked as
MIGRATE_ISOLATE
move_freepages_block() -> pages in PageBuddy will be moved into
MIGRATE_
No reason require rbtree test code to be a module, allow it to be
builtin (streamlines my development process)
Signed-off-by: Cody P Schafer
Reviewed-by: Seth Jennings
---
lib/Kconfig.debug | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/Kconfig.debug b/lib
Because deletion (of the entire tree) is a relatively common use of the
rbtree_postorder iteration, and because doing it safely means fiddling
with temporary storage, provide a helper to simplify postorder rbtree
iteration.
Signed-off-by: Cody P Schafer
Reviewed-by: Seth Jennings
---
include
ree runtime tests
4 allows building the rbtree runtime tests as builtins
5 updates zswap.
--
since v1:
- spacing
- s/it's/its/
- remove now unused var in zswap code.
- Reviewed-by: Seth Jennings
Cody P Schafer (5):
rbtree: add postorder iteration
Just check that we examine all nodes in the tree for the postorder iteration.
Signed-off-by: Cody P Schafer
Reviewed-by: Seth Jennings
---
lib/rbtree_test.c | 12
1 file changed, 12 insertions(+)
diff --git a/lib/rbtree_test.c b/lib/rbtree_test.c
index 122f02f..31dd4cc 100644
Add postorder iteration functions for rbtree. These are useful for
safely freeing an entire rbtree without modifying the tree at all.
Signed-off-by: Cody P Schafer
Reviewed-by: Seth Jennings
---
include/linux/rbtree.h | 4
lib/rbtree.c | 40
Signed-off-by: Cody P Schafer
Reviewed-by: Seth Jennings
---
mm/zswap.c | 16 ++--
1 file changed, 2 insertions(+), 14 deletions(-)
diff --git a/mm/zswap.c b/mm/zswap.c
index deda2b6..5c853b2 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -790,26 +790,14 @@ static void
On 07/29/2013 08:06 AM, Seth Jennings wrote:
On Fri, Jul 26, 2013 at 02:13:40PM -0700, Cody P Schafer wrote:
Because deletion (of the entire tree) is a relatively common use of the
rbtree_postorder iteration, and because doing it safely means fiddling
with temporary storage, provide a helper to
On 07/29/2013 08:01 AM, Seth Jennings wrote:
On Fri, Jul 26, 2013 at 02:13:39PM -0700, Cody P Schafer wrote:
diff --git a/lib/rbtree.c b/lib/rbtree.c
index c0e31fe..65f4eff 100644
--- a/lib/rbtree.c
+++ b/lib/rbtree.c
@@ -518,3 +518,43 @@ void rb_replace_node(struct rb_node *victim, struct
Add postorder iteration functions for rbtree. These are useful for
safely freeing an entire rbtree without modifying the tree at all.
Signed-off-by: Cody P Schafer
---
include/linux/rbtree.h | 4
lib/rbtree.c | 40
2 files changed, 44
Because deletion (of the entire tree) is a relatively common use of the
rbtree_postorder iteration, and because doing it safely means fiddling
with temporary storage, provide a helper to simplify postorder rbtree
iteration.
Signed-off-by: Cody P Schafer
---
include/linux/rbtree.h | 17
No reason require rbtree test code to be a module, allow it to be
builtin (streamlines my development process)
Signed-off-by: Cody P Schafer
---
lib/Kconfig.debug | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 1501aa5..606e3c8
ode (most notably in the filesystem drivers) use a hand rolled
postorder iteration that NULLs child links as it traverses the tree. Each of
those instances could be replaced with this common implementation.
Cody P Schafer (5):
rbtree: add postorder iteration func
Signed-off-by: Cody P Schafer
---
mm/zswap.c | 15 ++-
1 file changed, 2 insertions(+), 13 deletions(-)
diff --git a/mm/zswap.c b/mm/zswap.c
index deda2b6..98d99c4 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -791,25 +791,14 @@ static void zswap_frontswap_invalidate_area(unsigned
Just check that we examine all nodes in the tree for the postorder iteration.
Signed-off-by: Cody P Schafer
---
lib/rbtree_test.c | 12
1 file changed, 12 insertions(+)
diff --git a/lib/rbtree_test.c b/lib/rbtree_test.c
index 122f02f..31dd4cc 100644
--- a/lib/rbtree_test.c
+++ b
On 07/19/2013 12:59 AM, Tang Chen wrote:
This patch introduce early_acpi_firmware_srat() to find the
phys addr of SRAT provided by firmware. And call it in
reserve_hotpluggable_memory().
Since we have initialized acpi_gbl_root_table_list earlier,
and store all the tables' phys addrs and signatur
On 06/27/2013 05:25 PM, Cody P Schafer wrote:
On 06/24/2013 12:28 AM, Eliezer Tamir wrote:
select/poll busy-poll support.
...
I'm seeing warnings about using smp_processor_id() while preemptable
(log included below) due to this patch. I expect the use of
ll_end_time() -> sched_clock()
On 06/24/2013 12:28 AM, Eliezer Tamir wrote:
select/poll busy-poll support.
...
diff --git a/fs/select.c b/fs/select.c
index 8c1c96c..79b876e 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -400,6 +402,8 @@ int do_select(int n, fd_set_bits *fds, struct timespec
*end_time)
poll_table *wai
stem state) from zone_pageset_init() and using the new
pageset_set_high_and_batch() instead of zone_pageset_init() in
zone_pcp_update().
Signed-off-by: Cody P Schafer
--
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On 06/12/2013 02:20 PM, Andrew Morton wrote:
On Tue, 11 Jun 2013 15:12:59 -0700 Cody P Schafer
wrote:
Factor pageset_set_high_and_batch() (which contains all needed logic too
set a pageset's ->high and ->batch inrespective of system state) out of
zone_pageset_init(), which avoids
some funky allocations would be the result) when memory
hotplug is triggered.
Signed-off-by: Cody P Schafer
---
Unless memory hotplug is being triggered on boot, this should *not* be cause of
Valdis
Kletnieks' reported bug in -next:
"next-20130607 BUG: Bad page state in proce
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