aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/android/binder_alloc.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/android/binder_alloc.h')
-rw-r--r--drivers/android/binder_alloc.h23
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/android/binder_alloc.h b/drivers/android/binder_alloc.h
index dd5649bf6469..fa707cc63393 100644
--- a/drivers/android/binder_alloc.h
+++ b/drivers/android/binder_alloc.h
@@ -21,7 +21,9 @@
#include <linux/rtmutex.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
+#include <linux/list_lru.h>
+extern struct list_lru binder_alloc_lru;
struct binder_transaction;
/**
@@ -61,6 +63,18 @@ struct binder_buffer {
};
/**
+ * struct binder_lru_page - page object used for binder shrinker
+ * @page_ptr: pointer to physical page in mmap'd space
+ * @lru: entry in binder_alloc_lru
+ * @alloc: binder_alloc for a proc
+ */
+struct binder_lru_page {
+ struct list_head lru;
+ struct page *page_ptr;
+ struct binder_alloc *alloc;
+};
+
+/**
* struct binder_alloc - per-binder proc state for binder allocator
* @vma: vm_area_struct passed to mmap_handler
* (invarient after mmap)
@@ -75,8 +89,7 @@ struct binder_buffer {
* @allocated_buffers: rb tree of allocated buffers sorted by address
* @free_async_space: VA space available for async buffers. This is
* initialized at mmap time to 1/2 the full VA space
- * @pages: array of physical page addresses for each
- * page of mmap'd space
+ * @pages: array of binder_lru_page
* @buffer_size: size of address space specified via mmap
* @pid: pid for associated binder_proc (invariant after init)
*
@@ -96,7 +109,7 @@ struct binder_alloc {
struct rb_root free_buffers;
struct rb_root allocated_buffers;
size_t free_async_space;
- struct page **pages;
+ struct binder_lru_page *pages;
size_t buffer_size;
uint32_t buffer_free;
int pid;
@@ -107,12 +120,16 @@ void binder_selftest_alloc(struct binder_alloc *alloc);
#else
static inline void binder_selftest_alloc(struct binder_alloc *alloc) {}
#endif
+enum lru_status binder_alloc_free_page(struct list_head *item,
+ struct list_lru_one *lru,
+ spinlock_t *lock, void *cb_arg);
extern struct binder_buffer *binder_alloc_new_buf(struct binder_alloc *alloc,
size_t data_size,
size_t offsets_size,
size_t extra_buffers_size,
int is_async);
extern void binder_alloc_init(struct binder_alloc *alloc);
+void binder_alloc_shrinker_init(void);
extern void binder_alloc_vma_close(struct binder_alloc *alloc);
extern struct binder_buffer *
binder_alloc_prepare_to_free(struct binder_alloc *alloc,

Privacy Policy