Commit 3871f2ff authored by Randy Dunlap's avatar Randy Dunlap Committed by Ingo Molnar
Browse files

sysrq: fix ftrace help msg & doc.

Impact: update documentation and help messages

We have a conventional method of explicitly stating the
sysrq action key in a sysrq help message, so change
dump-ftrace-buffer to use that method and add it to
Signed-off-by: default avatarRandy Dunlap <>
Signed-off-by: default avatarIngo Molnar <>
parent 5250d329
......@@ -114,6 +114,8 @@ On all - write a character to /proc/sysrq-trigger. e.g.:
'x' - Used by xmon interface on ppc/powerpc platforms.
'z' - Dump the ftrace buffer
'0'-'9' - Sets the console log level, controlling which kernel messages
will be printed to your console. ('0', for example would make
it so that only emergency messages like PANICs or OOPSes would
......@@ -283,7 +283,7 @@ static void sysrq_ftrace_dump(int key, struct tty_struct *tty)
static struct sysrq_key_op sysrq_ftrace_dump_op = {
.handler = sysrq_ftrace_dump,
.help_msg = "dumpZ-ftrace-buffer",
.help_msg = "dump-ftrace-buffer(Z)",
.action_msg = "Dump ftrace buffer",
.enable_mask = SYSRQ_ENABLE_DUMP,
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