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

Message ID 1386991595-6251-10-git-send-email-john.stultz@linaro.org
State Accepted
Headers show

Commit Message

John Stultz Dec. 14, 2013, 3:26 a.m. UTC 
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(-)
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Patch

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;