[PATCH 102/115] ion: free low memory from page pools first

John Stultz
2013-12-14T03:27:43Z

From: Colin Cross <ccross@android.com>

When the shrinkers are called with GFP_HIGH free low memory first,
it is more important to have free than high memory.

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
drivers/staging/android/ion/ion_page_pool.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/android/ion/ion_page_pool.c b/drivers/staging/android/ion/ion_page_pool.c
index 979d2e4..0ad0263 100644
--- a/drivers/staging/android/ion/ion_page_pool.c
+++ b/drivers/staging/android/ion/ion_page_pool.c
@@ -143,10 +143,10 @@ int ion_page_pool_shrink(struct ion_page_pool *pool, gfp_t gfp_mask,
struct page *page;

mutex_lock(&pool->mutex);
- if (high && pool->high_count) {
- page = ion_page_pool_remove(pool, true);
- } else if (pool->low_count) {
+ if (pool->low_count) {
page = ion_page_pool_remove(pool, false);
+ } else if (high && pool->high_count) {
+ page = ion_page_pool_remove(pool, true);
} else {
mutex_unlock(&pool->mutex);
break;
--
1.8.3.2