From f82da10dcae73652a6f0355e4398b4be1af17e6b Mon Sep 17 00:00:00 2001 From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> Date: Mon, 26 Jan 2009 19:22:19 -0800 Subject: [PATCH 053/134] lowmemorykiller: Don't count free space unless it meets the specified limit by itself MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit This allows processes to be killed when the kernel evict cache pages in an attempt to get more contiguous free memory. Signed-off-by: Arve Hjønnevåg <arve@android.com> --- drivers/staging/android/lowmemorykiller.c | 13 +++++++++---- 1 files changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c index b9a2e84..b2ab7fa 100644 --- a/drivers/staging/android/lowmemorykiller.c +++ b/drivers/staging/android/lowmemorykiller.c @@ -58,20 +58,25 @@ static int lowmem_shrink(int nr_to_scan, gfp_t gfp_mask) int min_adj = OOM_ADJUST_MAX + 1; int selected_tasksize = 0; int array_size = ARRAY_SIZE(lowmem_adj); - int other_free = global_page_state(NR_FREE_PAGES) + global_page_state(NR_FILE_PAGES); + int other_free = global_page_state(NR_FREE_PAGES); + int other_file = global_page_state(NR_FILE_PAGES); if(lowmem_adj_size < array_size) array_size = lowmem_adj_size; if(lowmem_minfree_size < array_size) array_size = lowmem_minfree_size; for(i = 0; i < array_size; i++) { - if(other_free < lowmem_minfree[i]) { + if (other_free < lowmem_minfree[i] && + other_file < lowmem_minfree[i]) { min_adj = lowmem_adj[i]; break; } } if(nr_to_scan > 0) - lowmem_print(3, "lowmem_shrink %d, %x, ofree %d, ma %d\n", nr_to_scan, gfp_mask, other_free, min_adj); - rem = global_page_state(NR_ACTIVE) + global_page_state(NR_INACTIVE); + lowmem_print(3, "lowmem_shrink %d, %x, ofree %d %d, ma %d\n", nr_to_scan, gfp_mask, other_free, other_file, min_adj); + rem = global_page_state(NR_ACTIVE_ANON) + + global_page_state(NR_ACTIVE_FILE) + + global_page_state(NR_INACTIVE_ANON) + + global_page_state(NR_INACTIVE_FILE); if (nr_to_scan <= 0 || min_adj == OOM_ADJUST_MAX + 1) { lowmem_print(5, "lowmem_shrink %d, %x, return %d\n", nr_to_scan, gfp_mask, rem); return rem; -- 1.6.2