Displaying 10 results from an estimated 10 matches for "objidx_to_page_and_offset".
2016 Apr 17
1
[PATCH v3 08/16] zsmalloc: squeeze freelist into page->mapping
Hello,
On (03/30/16 16:12), Minchan Kim wrote:
[..]
> +static void objidx_to_page_and_offset(struct size_class *class,
> + struct page *first_page,
> + unsigned long obj_idx,
> + struct page **obj_page,
> + unsigned long *offset_in_page)
> {
> - unsigned long obj;
> + int i;
> + unsigned long offset;
> + struct page *cursor;
> + int nr_page;
>...
2016 Apr 17
1
[PATCH v3 08/16] zsmalloc: squeeze freelist into page->mapping
Hello,
On (03/30/16 16:12), Minchan Kim wrote:
[..]
> +static void objidx_to_page_and_offset(struct size_class *class,
> + struct page *first_page,
> + unsigned long obj_idx,
> + struct page **obj_page,
> + unsigned long *offset_in_page)
> {
> - unsigned long obj;
> + int i;
> + unsigned long offset;
> + struct page *cursor;
> + int nr_page;
>...
2016 Apr 18
1
[PATCH v3 10/16] zsmalloc: factor page chain functionality out
...gned long obj_malloc(struct size_class *class,
> unsigned long m_offset;
> void *vaddr;
>
> - handle |= OBJ_ALLOCATED_TAG;
a nitpick, why did you replace this ALLOCATED_TAG assignment
with 2 'handle | OBJ_ALLOCATED_TAG'?
-ss
> obj = get_freeobj(first_page);
> objidx_to_page_and_offset(class, first_page, obj,
> &m_page, &m_offset);
> @@ -1431,10 +1443,10 @@ static unsigned long obj_malloc(struct size_class *class,
> set_freeobj(first_page, link->next >> OBJ_ALLOCATED_TAG);
> if (!class->huge)
> /* record handle in the header of alloc...
2016 Apr 18
1
[PATCH v3 10/16] zsmalloc: factor page chain functionality out
...gned long obj_malloc(struct size_class *class,
> unsigned long m_offset;
> void *vaddr;
>
> - handle |= OBJ_ALLOCATED_TAG;
a nitpick, why did you replace this ALLOCATED_TAG assignment
with 2 'handle | OBJ_ALLOCATED_TAG'?
-ss
> obj = get_freeobj(first_page);
> objidx_to_page_and_offset(class, first_page, obj,
> &m_page, &m_offset);
> @@ -1431,10 +1443,10 @@ static unsigned long obj_malloc(struct size_class *class,
> set_freeobj(first_page, link->next >> OBJ_ALLOCATED_TAG);
> if (!class->huge)
> /* record handle in the header of alloc...
2016 Mar 30
0
[PATCH v3 08/16] zsmalloc: squeeze freelist into page->mapping
...ss)
@@ -837,30 +854,33 @@ static struct page *get_next_page(struct page *page)
return next;
}
-/*
- * Encode <page, obj_idx> as a single handle value.
- * We use the least bit of handle for tagging.
- */
-static void *location_to_obj(struct page *page, unsigned long obj_idx)
+static void objidx_to_page_and_offset(struct size_class *class,
+ struct page *first_page,
+ unsigned long obj_idx,
+ struct page **obj_page,
+ unsigned long *offset_in_page)
{
- unsigned long obj;
+ int i;
+ unsigned long offset;
+ struct page *cursor;
+ int nr_page;
- if (!page) {
- VM_BUG_ON(obj_idx);
- return NULL;...
2016 Mar 30
0
[PATCH v3 10/16] zsmalloc: factor page chain functionality out
...or) && first_page) {
- free_zspage(first_page);
- first_page = NULL;
- }
-
return first_page;
}
@@ -1421,7 +1434,6 @@ static unsigned long obj_malloc(struct size_class *class,
unsigned long m_offset;
void *vaddr;
- handle |= OBJ_ALLOCATED_TAG;
obj = get_freeobj(first_page);
objidx_to_page_and_offset(class, first_page, obj,
&m_page, &m_offset);
@@ -1431,10 +1443,10 @@ static unsigned long obj_malloc(struct size_class *class,
set_freeobj(first_page, link->next >> OBJ_ALLOCATED_TAG);
if (!class->huge)
/* record handle in the header of allocated chunk */
- link->...
2016 Mar 30
33
[PATCH v3 00/16] Support non-lru page migration
Recently, I got many reports about perfermance degradation
in embedded system(Android mobile phone, webOS TV and so on)
and failed to fork easily.
The problem was fragmentation caused by zram and GPU driver
pages. Their pages cannot be migrated so compaction cannot
work well, either so reclaimer ends up shrinking all of working
set pages. It made system very slow and even to fail to fork
easily.
2016 Mar 30
33
[PATCH v3 00/16] Support non-lru page migration
Recently, I got many reports about perfermance degradation
in embedded system(Android mobile phone, webOS TV and so on)
and failed to fork easily.
The problem was fragmentation caused by zram and GPU driver
pages. Their pages cannot be migrated so compaction cannot
work well, either so reclaimer ends up shrinking all of working
set pages. It made system very slow and even to fail to fork
easily.
2016 Mar 21
22
[PATCH v2 00/18] Support non-lru page migration
Recently, I got many reports about perfermance degradation
in embedded system(Android mobile phone, webOS TV and so on)
and failed to fork easily.
The problem was fragmentation caused by zram and GPU driver
pages. Their pages cannot be migrated so compaction cannot
work well, either so reclaimer ends up shrinking all of working
set pages. It made system very slow and even to fail to fork
easily.
2016 Mar 21
22
[PATCH v2 00/18] Support non-lru page migration
Recently, I got many reports about perfermance degradation
in embedded system(Android mobile phone, webOS TV and so on)
and failed to fork easily.
The problem was fragmentation caused by zram and GPU driver
pages. Their pages cannot be migrated so compaction cannot
work well, either so reclaimer ends up shrinking all of working
set pages. It made system very slow and even to fail to fork
easily.