Subject: + dynamic-debug-howtotxt-update-since-new-wildcard-support.patch added to -mm tree
To: changbin.du@xxxxxxxxx,jbaron@xxxxxxxxxx,joe@xxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 19 Nov 2013 15:34:21 -0800
The patch titled
Subject: dynamic-debug-howto.txt: update since new wildcard support
has been added to the -mm tree. Its filename is
dynamic-debug-howtotxt-update-since-new-wildcard-support.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/dynamic-debug-howtotxt-update-since-new-wildcard-support.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/dynamic-debug-howtotxt-update-since-new-wildcard-support.patch
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------------------------------------------------------
From: "Du, Changbin" <changbin.du@xxxxxxxxx>
Subject: dynamic-debug-howto.txt: update since new wildcard support
Add the usage of using new feature wildcard support.
Signed-off-by: Du, Changbin <changbin.du@xxxxxxxxx>
Cc: Jason Baron <jbaron@xxxxxxxxxx>
Cc: Joe Perches <joe@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/dynamic-debug-howto.txt | 9 +++++++++
1 file changed, 9 insertions(+)
diff -puN Documentation/dynamic-debug-howto.txt~dynamic-debug-howtotxt-update-since-new-wildcard-support Documentation/dynamic-debug-howto.txt
--- a/Documentation/dynamic-debug-howto.txt~dynamic-debug-howtotxt-update-since-new-wildcard-support
+++ a/Documentation/dynamic-debug-howto.txt
@@ -108,6 +108,12 @@ If your query set is big, you can batch
~# cat query-batch-file > <debugfs>/dynamic_debug/control
+A another way is to use wildcard. The match rule support '*' (matches
+zero or more characters) and '?' (matches exactly one character).For
+example, you can match all usb drivers:
+
+ ~# echo "file drivers/usb/* +p" > <debugfs>/dynamic_debug/control
+
At the syntactical level, a command comprises a sequence of match
specifications, followed by a flags change specification.
@@ -315,6 +321,9 @@ nullarbor:~ # echo -n 'func svc_process
nullarbor:~ # echo -n 'format "nfsd: READ" +p' >
<debugfs>/dynamic_debug/control
+// enable messages in files of which the pathes include string "usb"
+nullarbor:~ # echo -n '*usb* +p' > <debugfs>/dynamic_debug/control
+
// enable all messages
nullarbor:~ # echo -n '+p' > <debugfs>/dynamic_debug/control
_
Patches currently in -mm which might be from changbin.du@xxxxxxxxx are
lib-parserc-add-match_wildcard-function.patch
dynamic_debug-add-wildcard-support-to-filter-files-functions-modules.patch
dynamic-debug-howtotxt-update-since-new-wildcard-support.patch
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