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


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