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ion: Conditionally compile page pool refill code

Browse source 
Compile the page pool refill code only when
CONFIG_ION_POOL_AUTO_REFILL is enabled.

Change-Id: Ia4024f3d6eec08769d837fbc3f81f778cdd29bff
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>
This commit is contained in:
Isaac J. Manjarres 2019-10-15 17:06:43 -07:00 • committed by Gerrit - the friendly Code Review server
commit 3c29b7a199
3 changed files with 59 additions and 31 deletions
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2
drivers/staging/android/ion/heaps/Kconfig
View file

@ -69,7 +69,7 @@ config ION_DEFER_FREE_NO_SCHED_IDLE
config ION_POOL_AUTO_REFILL
bool "Refill the ION heap pools automatically"
depends on ION
depends on ION && QGKI
help
Choose this option to refill the ION system heap pools (non-secure)
automatically when the pool pages count becomes lower than a set low mark.

62
drivers/staging/android/ion/heaps/ion_page_pool.c
View file

@ -13,6 +13,37 @@
#include "msm_ion_priv.h"
#include "ion_page_pool.h"
static inline struct page *ion_page_pool_alloc_pages(struct ion_page_pool *pool)
{
if (fatal_signal_pending(current))
return NULL;
return alloc_pages(pool->gfp_mask, pool->order);
}
static void ion_page_pool_free_pages(struct ion_page_pool *pool,
struct page *page)
{
__free_pages(page, pool->order);
}
static void ion_page_pool_add(struct ion_page_pool *pool, struct page *page)
{
mutex_lock(&pool->mutex);
if (PageHighMem(page)) {
list_add_tail(&page->lru, &pool->high_items);
pool->high_count++;
} else {
list_add_tail(&page->lru, &pool->low_items);
pool->low_count++;
}
atomic_inc(&pool->count);
mod_node_page_state(page_pgdat(page), NR_KERNEL_MISC_RECLAIMABLE,
(1 << (PAGE_SHIFT + pool->order)));
mutex_unlock(&pool->mutex);
}
#ifdef CONFIG_ION_POOL_AUTO_REFILL
/* do a simple check to see if we are in any low memory situation */
static bool pool_refill_ok(struct ion_page_pool *pool)
{
@ -48,36 +79,6 @@ static bool pool_refill_ok(struct ion_page_pool *pool)
return true;
}
static inline struct page *ion_page_pool_alloc_pages(struct ion_page_pool *pool)
{
if (fatal_signal_pending(current))
return NULL;
return alloc_pages(pool->gfp_mask, pool->order);
}
static void ion_page_pool_free_pages(struct ion_page_pool *pool,
struct page *page)
{
__free_pages(page, pool->order);
}
static void ion_page_pool_add(struct ion_page_pool *pool, struct page *page)
{
mutex_lock(&pool->mutex);
if (PageHighMem(page)) {
list_add_tail(&page->lru, &pool->high_items);
pool->high_count++;
} else {
list_add_tail(&page->lru, &pool->low_items);
pool->low_count++;
}
atomic_inc(&pool->count);
mod_node_page_state(page_pgdat(page), NR_KERNEL_MISC_RECLAIMABLE,
(1 << (PAGE_SHIFT + pool->order)));
mutex_unlock(&pool->mutex);
}
void ion_page_pool_refill(struct ion_page_pool *pool)
{
struct page *page;
@ -99,6 +100,7 @@ void ion_page_pool_refill(struct ion_page_pool *pool)
ion_page_pool_add(pool, page);
}
}
#endif /* CONFIG_ION_PAGE_POOL_REFILL */
static struct page *ion_page_pool_remove(struct ion_page_pool *pool, bool high)
{

26
drivers/staging/android/ion/heaps/ion_page_pool.h
View file

@ -92,6 +92,7 @@ size_t ion_system_heap_secure_page_pool_total(struct ion_heap *heap, int vmid);
int ion_page_pool_shrink(struct ion_page_pool *pool, gfp_t gfp_mask,
int nr_to_scan);
#ifdef CONFIG_ION_POOL_AUTO_REFILL
void ion_page_pool_refill(struct ion_page_pool *pool);
static __always_inline int get_pool_fillmark(struct ion_page_pool *pool)
@ -113,4 +114,29 @@ static __always_inline bool pool_fillmark_reached(struct ion_page_pool *pool)
{
return atomic_read(&pool->count) >= get_pool_fillmark(pool);
}
#else
static inline void ion_page_pool_refill(struct ion_page_pool *pool)
{
}
static __always_inline int get_pool_fillmark(struct ion_page_pool *pool)
{
return 0;
}
static __always_inline int get_pool_lowmark(struct ion_page_pool *pool)
{
return 0;
}
static __always_inline bool pool_count_below_lowmark(struct ion_page_pool *pool)
{
return false;
}
static __always_inline bool pool_fillmark_reached(struct ion_page_pool *pool)
{
return false;
}
#endif /* CONFIG_ION_POOL_AUTO_REFILL */
#endif /* _ION_PAGE_POOL_H */