Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

[karo-tx-linux.git] / Documentation / trace / events.txt

diff --git a/Documentation/trace/events.txt b/Documentation/trace/events.txt
index bb24c2a0e870dc873ef8e8250f77d44d76a017b9..37732a220d331dcbafbf49c1fb0b04fc0cb6edad 100644 (file)
--- a/Documentation/trace/events.txt
+++ b/Documentation/trace/events.txt
@@ -183,13 +183,22 @@ The relational-operators depend on the type of the field being tested:
 
 The operators available for numeric fields are:
 
-==, !=, <, <=, >, >=
+==, !=, <, <=, >, >=, &
 
 And for string fields they are:
 
-==, !=
+==, !=, ~
 
-Currently, only exact string matches are supported.
+The glob (~) only accepts a wild card character (*) at the start and or
+end of the string. For example:
+
+  prev_comm ~ "*sh"
+  prev_comm ~ "sh*"
+  prev_comm ~ "*sh*"
+
+But does not allow for it to be within the string:
+
+  prev_comm ~ "ba*sh"   <-- is invalid
 
 5.2 Setting filters
 -------------------