[PATCH 3/3] doc: add description for unreclaim_slabs_oom_ratio

[Yang Shi]

Add the description for unreclaim_slabs_oom_ratio in
Documentation/sysctl/vm.txt.

Signed-off-by: Yang Shi <yang.s@xxxxxxxxxxxxxxx>
---
 Documentation/sysctl/vm.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt
index 9baf66a..29926e3 100644
--- a/Documentation/sysctl/vm.txt
+++ b/Documentation/sysctl/vm.txt
@@ -59,6 +59,7 @@ Currently, these files are in /proc/sys/vm:
 - stat_interval
 - stat_refresh
 - swappiness
+- unreclaim_slabs_oom_ratio
 - user_reserve_kbytes
 - vfs_cache_pressure
 - watermark_scale_factor
@@ -804,6 +805,17 @@ The default value is 60.
 
 ==============================================================
 
+unreclaim_slabs_oom_ratio
+
+The percentage of total unreclaimable slabs amount vs all user memory amount
+(LRU pages). When the real ratio is greater than the value, oom killer would
+dump unreclaimable slabs info when kernel panic.
+The range is 0 - 100. 0 means dump unreclaimable slabs info unconditionally.
+
+The default value is 50.
+
+==============================================================
+
 - user_reserve_kbytes
 
 When overcommit_memory is set to 2, "never overcommit" mode, reserve
-- 
1.8.3.1