linux-next: manual merge of the akpm-current tree with the tile tree

From: Stephen Rothwell
Date: Tue Apr 07 2015 - 07:00:34 EST

Hi Andrew,

Today's linux-next merge of the akpm-current tree got a conflict in
Documentation/sysctl/kernel.txt between commit e164ade07b21 ("watchdog:
add watchdog_exclude sysctl to assist nohz") from the tile tree and
commit 25909f748a50 ("watchdog: update documentation for kernel params
and sysctl") from the akpm-current tree.

I fixed it up (see below) and can carry the fix as necessary (no action
is required).

Stephen Rothwell sfr@xxxxxxxxxxxxxxxx

diff --cc Documentation/sysctl/kernel.txt
index aad9f9ba347c,c831001c45f1..000000000000
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@@ -858,15 -904,25 +904,34 @@@ example. If a system hangs up, try pre


+ watchdog:
+ This parameter can be used to disable or enable the soft lockup detector
+ _and_ the NMI watchdog (i.e. the hard lockup detector) at the same time.
+ 0 - disable both lockup detectors
+ 1 - enable both lockup detectors
+ The soft lockup detector and the NMI watchdog can also be disabled or
+ enabled individually, using the soft_watchdog and nmi_watchdog parameters.
+ If the watchdog parameter is read, for example by executing
+ cat /proc/sys/kernel/watchdog
+ the output of this command (0 or 1) shows the logical OR of soft_watchdog
+ and nmi_watchdog.
+ ==============================================================
+This value can be used to control on which cpus the watchdog is
+prohibited from running. The default exclude mask is empty, but if
+NO_HZ_FULL is enabled in the kernel config, and cores are specified
+with the nohz_full= boot argument, those cores are excluded by default.

This value can be used to control the frequency of hrtimer and NMI

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