X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=Documentation%2FABI%2Ftesting%2Fsysfs-class-bdi;fp=Documentation%2FABI%2Ftesting%2Fsysfs-class-bdi;h=3187a18af6da5bbbcc9ee2a0592e27f62ab1983c;hb=af77b2b30b6414c792fa5b08f2ca45636861ea47;hp=d773d5697cf588349b74fd7d19e63983472b1632;hpb=228e87e9ea37c09d0e3a5505b9e8f76a4d72fd05;p=karo-tx-linux.git

diff --git a/Documentation/ABI/testing/sysfs-class-bdi b/Documentation/ABI/testing/sysfs-class-bdi
index d773d5697cf5..3187a18af6da 100644
--- a/Documentation/ABI/testing/sysfs-class-bdi
+++ b/Documentation/ABI/testing/sysfs-class-bdi
@@ -53,3 +53,11 @@ stable_pages_required (read-only)
 
 	If set, the backing device requires that all pages comprising a write
 	request must not be changed until writeout is complete.
+
+strictlimit (read-write)
+
+	Forces per-BDI checks for the share of given device in the write-back
+	cache even before the global background dirty limit is reached. This
+	is useful in situations where the global limit is much higher than
+	affordable for given relatively slow (or untrusted) device. Turning
+	strictlimit on has no visible effect if max_ratio is equal to 100%.