linux-kernel - [PATCH] Documentation: add shmall documentation in sysctl/kernel.txt

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Date:	Thu, 15 Nov 2012 20:14:20 +0100
From:	Carlos Alberto Lopez Perez <clopez@...lia.com>
To:	Rob Landley <rob@...dley.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Larry Finger <Larry.Finger@...inger.net>,
	Neil Horman <nhorman@...driver.com>,
	Mitsuo Hayasaka <mitsuo.hayasaka.hu@...achi.com>,
	Tejun Heo <tj@...nel.org>
Cc:	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] Documentation: add shmall documentation in sysctl/kernel.txt

Add missing documentation for shmall parameter in sysctl/kernel.txt

Signed-off-by: Carlos Alberto Lopez Perez <clopez@...lia.com>
---
 Documentation/sysctl/kernel.txt |   13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 2907ba6..278b1fc 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -542,6 +542,19 @@ are doing anyway :)
 
 ==============================================================
 
+shmall:
+
+This parameter sets the total amount of shared memory pages that
+can be used system wide. Hence, SHMALL should always be at least
+ceil(shmmax/PAGE_SIZE).
+
+If you are not sure what the default PAGE_SIZE is on your Linux
+system, you can run the following command:
+
+# getconf PAGE_SIZE
+
+==============================================================
+
 shmmax:
 
 This value can be used to query and set the run time limit
-- 
1.7.10.4

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