search for: init_zspage

...++++++++++++++++++++++++++++++++------------------------- > 1 file changed, 45 insertions(+), 33 deletions(-) > > diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c > index bfc6a048afac..f86f8aaeb902 100644 > --- a/mm/zsmalloc.c > +++ b/mm/zsmalloc.c > @@ -977,7 +977,9 @@ static void init_zspage(struct size_class *class, struct page *first_page) > unsigned long off = 0; > struct page *page = first_page; > > - VM_BUG_ON_PAGE(!is_first_page(first_page), first_page); > + first_page->freelist = NULL; > + INIT_LIST_HEAD(&first_page->lru); > + set_zspage_inus...

...++++++++++++++++++++++++++++++++------------------------- > 1 file changed, 45 insertions(+), 33 deletions(-) > > diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c > index bfc6a048afac..f86f8aaeb902 100644 > --- a/mm/zsmalloc.c > +++ b/mm/zsmalloc.c > @@ -977,7 +977,9 @@ static void init_zspage(struct size_class *class, struct page *first_page) > unsigned long off = 0; > struct page *page = first_page; > > - VM_BUG_ON_PAGE(!is_first_page(first_page), first_page); > + first_page->freelist = NULL; > + INIT_LIST_HEAD(&first_page->lru); > + set_zspage_inus...

...t_page, class, newfg); + remove_zspage(class, currfg, first_page); + insert_zspage(class, newfg, first_page); set_zspage_mapping(first_page, class_idx, newfg); out: @@ -910,7 +912,7 @@ static void free_zspage(struct page *first_page) } /* Initialize a newly allocated zspage */ -static void init_zspage(struct page *first_page, struct size_class *class) +static void init_zspage(struct size_class *class, struct page *first_page) { unsigned long off = 0; struct page *page = first_page; @@ -998,7 +1000,7 @@ static struct page *alloc_zspage(struct size_class *class, gfp_t flags) prev_page = pa...

....org> --- mm/zsmalloc.c | 78 ++++++++++++++++++++++++++++++++++------------------------- 1 file changed, 45 insertions(+), 33 deletions(-) diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index bfc6a048afac..f86f8aaeb902 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -977,7 +977,9 @@ static void init_zspage(struct size_class *class, struct page *first_page) unsigned long off = 0; struct page *page = first_page; - VM_BUG_ON_PAGE(!is_first_page(first_page), first_page); + first_page->freelist = NULL; + INIT_LIST_HEAD(&first_page->lru); + set_zspage_inuse(first_page, 0); while (page)...

....org> --- mm/zsmalloc.c | 80 ++++++++++++++++++++++++++++++++++------------------------- 1 file changed, 46 insertions(+), 34 deletions(-) diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index d4d33a819832..14bcc741eead 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -981,7 +981,9 @@ static void init_zspage(struct size_class *class, struct page *first_page) unsigned long off = 0; struct page *page = first_page; - VM_BUG_ON_PAGE(!is_first_page(first_page), first_page); + first_page->freelist = NULL; + INIT_LIST_HEAD(&first_page->lru); + set_zspage_inuse(first_page, 0); while (page)...

...)) - off = page->index; - - return off + obj_idx * class_size; -} - static inline int trypin_tag(unsigned long handle) { unsigned long *ptr = (unsigned long *)handle; @@ -952,6 +978,7 @@ static void free_zspage(struct page *first_page) /* Initialize a newly allocated zspage */ static void init_zspage(struct size_class *class, struct page *first_page) { + int freeobj = 1; unsigned long off = 0; struct page *page = first_page; @@ -960,14 +987,11 @@ static void init_zspage(struct size_class *class, struct page *first_page) while (page) { struct page *next_page; struct link_free *lin...

...e *page) clear_bit(PG_private_2, &page->flags); set_page_private(page, 0); page->mapping = NULL; - page->freelist = NULL; page_mapcount_reset(page); } @@ -948,6 +973,7 @@ static void free_zspage(struct page *first_page) /* Initialize a newly allocated zspage */ static void init_zspage(struct size_class *class, struct page *first_page) { + int freeobj = 1; unsigned long off = 0; struct page *page = first_page; @@ -956,14 +982,11 @@ static void init_zspage(struct size_class *class, struct page *first_page) while (page) { struct page *next_page; struct link_free *lin...

...+++------------------------- > > 1 file changed, 45 insertions(+), 33 deletions(-) > > > >diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c > >index bfc6a048afac..f86f8aaeb902 100644 > >--- a/mm/zsmalloc.c > >+++ b/mm/zsmalloc.c > >@@ -977,7 +977,9 @@ static void init_zspage(struct size_class *class, struct page *first_page) > > unsigned long off = 0; > > struct page *page = first_page; > > > >- VM_BUG_ON_PAGE(!is_first_page(first_page), first_page); > >+ first_page->freelist = NULL; > >+ INIT_LIST_HEAD(&first_page->lru...

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.

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.

...st_page, &class_idx, &currfg); > - newfg = get_fullness_group(first_page); > + newfg = get_fullness_group(class, first_page); > if (newfg == currfg) > goto out; > > @@ -1003,9 +1003,6 @@ static struct page *alloc_zspage(struct size_class *class, gfp_t flags) > init_zspage(class, first_page); > > first_page->freelist = location_to_obj(first_page, 0); > - /* Maximum number of objects we can store in this zspage */ > - first_page->objects = class->pages_per_zspage * PAGE_SIZE / class->size; > - > error = 0; /* Success */ > >...

...st_page, &class_idx, &currfg); > - newfg = get_fullness_group(first_page); > + newfg = get_fullness_group(class, first_page); > if (newfg == currfg) > goto out; > > @@ -1003,9 +1003,6 @@ static struct page *alloc_zspage(struct size_class *class, gfp_t flags) > init_zspage(class, first_page); > > first_page->freelist = location_to_obj(first_page, 0); > - /* Maximum number of objects we can store in this zspage */ > - first_page->objects = class->pages_per_zspage * PAGE_SIZE / class->size; > - > error = 0; /* Success */ > >...

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.

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.

...g, newfg; get_zspage_mapping(first_page, &class_idx, &currfg); - newfg = get_fullness_group(first_page); + newfg = get_fullness_group(class, first_page); if (newfg == currfg) goto out; @@ -1003,9 +1003,6 @@ static struct page *alloc_zspage(struct size_class *class, gfp_t flags) init_zspage(class, first_page); first_page->freelist = location_to_obj(first_page, 0); - /* Maximum number of objects we can store in this zspage */ - first_page->objects = class->pages_per_zspage * PAGE_SIZE / class->size; - error = 0; /* Success */ cleanup: @@ -1235,11 +1232,11 @@ static...

...g, newfg; get_zspage_mapping(first_page, &class_idx, &currfg); - newfg = get_fullness_group(first_page); + newfg = get_fullness_group(class, first_page); if (newfg == currfg) goto out; @@ -1008,9 +1008,6 @@ static struct page *alloc_zspage(struct size_class *class, gfp_t flags) init_zspage(class, first_page); first_page->freelist = location_to_obj(first_page, 0); - /* Maximum number of objects we can store in this zspage */ - first_page->objects = class->pages_per_zspage * PAGE_SIZE / class->size; - error = 0; /* Success */ cleanup: @@ -1238,11 +1235,11 @@ static...

...;currfg); > >- newfg = get_fullness_group(first_page); > >+ newfg = get_fullness_group(class, first_page); > > if (newfg == currfg) > > goto out; > > > >@@ -1003,9 +1003,6 @@ static struct page *alloc_zspage(struct size_class *class, gfp_t flags) > > init_zspage(class, first_page); > > > > first_page->freelist = location_to_obj(first_page, 0); > >- /* Maximum number of objects we can store in this zspage */ > >- first_page->objects = class->pages_per_zspage * PAGE_SIZE / class->size; > >- > > error = 0; /...

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.

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.

...nextp, *tmp, *head_extra; - BUG_ON(!is_first_page(first_page)); - BUG_ON(first_page->inuse); + VM_BUG_ON_PAGE(!is_first_page(first_page), first_page); + VM_BUG_ON_PAGE(first_page->inuse, first_page); head_extra = (struct page *)page_private(first_page); @@ -916,7 +915,8 @@ static void init_zspage(struct page *first_page, struct size_class *class) unsigned long off = 0; struct page *page = first_page; - BUG_ON(!is_first_page(first_page)); + VM_BUG_ON_PAGE(!is_first_page(first_page), first_page); + while (page) { struct page *next_page; struct link_free *link; @@ -1235,7 +1235,7...