From: Jakub Wilk <jwilk@jwilk.net>
Date: Mon, 18 Mar 2019 17:34:21 +0000 (+0100)
Subject: Documentation: fix core_pattern max length
X-Git-Tag: v5.2-rc1~93^2~106
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=cc809ed885097eafff7b711ef03c20261651ec3a;p=uclinux-h8%2Flinux.git

Documentation: fix core_pattern max length

The buffer size for core_pattern is 128, but one character is used for
terminating null byte, so the actual limit is 127:

    # printf '%0999d' > /proc/sys/kernel/core_pattern
    # tr -d '\n' < /proc/sys/kernel/core_pattern | wc -c
    127

Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---

diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index aa058aa7bf28..f0c86fbb3b48 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -196,7 +196,7 @@ CAP_LAST_CAP from the kernel.
 core_pattern:
 
 core_pattern is used to specify a core dumpfile pattern name.
-. max length 128 characters; default value is "core"
+. max length 127 characters; default value is "core"
 . core_pattern is used as a pattern template for the output filename;
   certain string patterns (beginning with '%') are substituted with
   their actual values.