diff options
| author | Wang ShaoBo <bobo.shaobowang@huawei.com> | 2021-11-05 13:40:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-06 13:30:38 -0700 |
| commit | 59d336bdf6931a6a8c2ba41e533267d1cc799fc9 (patch) | |
| tree | 355c713c16f9806f25317b14e2d195b4f1fb3277 | |
| parent | 9c25cbfcb38462803a3d68f5d88e66a587f5f045 (diff) | |
mm/page_alloc: use clamp() to simplify code
This patch uses clamp() to simplify code in init_per_zone_wmark_min().
Link: https://lkml.kernel.org/r/20211021034830.1049150-1-bobo.shaobowang@huawei.com
Signed-off-by: Wang ShaoBo <bobo.shaobowang@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Wei Yongjun <weiyongjun1@huawei.com>
Cc: Li Bin <huawei.libin@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/page_alloc.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 2aafc337d068..a7035467bf6d 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -8477,16 +8477,12 @@ int __meminit init_per_zone_wmark_min(void) lowmem_kbytes = nr_free_buffer_pages() * (PAGE_SIZE >> 10); new_min_free_kbytes = int_sqrt(lowmem_kbytes * 16); - if (new_min_free_kbytes > user_min_free_kbytes) { - min_free_kbytes = new_min_free_kbytes; - if (min_free_kbytes < 128) - min_free_kbytes = 128; - if (min_free_kbytes > 262144) - min_free_kbytes = 262144; - } else { + if (new_min_free_kbytes > user_min_free_kbytes) + min_free_kbytes = clamp(new_min_free_kbytes, 128, 262144); + else pr_warn("min_free_kbytes is not updated to %d because user defined value %d is preferred\n", new_min_free_kbytes, user_min_free_kbytes); - } + setup_per_zone_wmarks(); refresh_zone_stat_thresholds(); setup_per_zone_lowmem_reserve(); |