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Subject[PATCH] documentation: update sysrq.txt key mappings
From: Randy Dunlap <randy.dunlap@oracle.com>

Update Documentation/sysrq.txt magic sysrq keys:

- 'g' is for kgdb (not arch-specific);
- add 2 new uses for 'v', remove the Voyager info;
- add 'y' info (SPARC-64 specific);

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "James E.J. Bottomley" <James.Bottomley@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Alexander Shishkin <virtuoso@slind.org>
---
Documentation/sysrq.txt | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

--- lnx-2636-rc5.orig/Documentation/sysrq.txt
+++ lnx-2636-rc5/Documentation/sysrq.txt
@@ -75,7 +75,7 @@ On all - write a character to /proc/sys

'f' - Will call oom_kill to kill a memory hog process.

-'g' - Used by kgdb on ppc and sh platforms.
+'g' - Used by kgdb (kernel debugger)

'h' - Will display help (actually any other key than those listed
here will display help. but 'h' is easy to remember :-)
@@ -110,12 +110,15 @@ On all - write a character to /proc/sys

'u' - Will attempt to remount all mounted filesystems read-only.

-'v' - Dumps Voyager SMP processor info to your console.
+'v' - Forcefully restores framebuffer console
+'v' - Causes ETM buffer dump [ARM-specific]

'w' - Dumps tasks that are in uninterruptable (blocked) state.

'x' - Used by xmon interface on ppc/powerpc platforms.

+'y' - Show global CPU Registers [SPARC-64 specific]
+
'z' - Dump the ftrace buffer

'0'-'9' - Sets the console log level, controlling which kernel messages

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