From: "Angelo Dell'Aera" <buffer@antifork.org>
To: Linux-Kernel <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@osdl.org>
Subject: [PATCH] kernel 2.6.5-mm1 : laptop-mode
Date: Mon, 5 Apr 2004 15:50:55 +0200 [thread overview]
Message-ID: <20040405155055.3e9afab0.buffer@antifork.org> (raw)
After upgrading to 2.6.5-mm1 I noticed the script laptop_mode
failed to initiliaze laptop mode. It is due to the new position
of the sysctl laptop_mode under /proc. This is an update to the
documentation (and the script). Please apply.
Regards.
--
Angelo Dell'Aera 'buffer'
Antifork Research, Inc. http://buffer.antifork.org
--- linux-2.6.5-mm1/Documentation/laptop-mode.txt.old 2004-04-05 15:39:25.000000000 +0200
+++ linux-2.6.5-mm1/Documentation/laptop-mode.txt 2004-04-05 15:47:33.000000000 +0200
@@ -80,7 +80,7 @@
The details
-----------
-Laptop-mode is controlled by the flag /proc/sys/vm/laptop_mode. When this
+Laptop-mode is controlled by the flag /proc/sys/fs/laptop_mode. When this
flag is set, any physical disk read operation (that might have caused the
hard disk to spin up) causes Linux to flush all dirty blocks. The result
of this is that after a disk has spun down, it will not be spun up anymore
@@ -321,12 +321,12 @@
# like the rest of the external world. Unfortunately this cannot be automated. :(
XFS_HZ=1000
-if [ ! -e /proc/sys/vm/laptop_mode ]; then
+if [ ! -e /proc/sys/fs/laptop_mode ]; then
echo "Kernel is not patched with laptop_mode patch."
exit 1
fi
-if [ ! -w /proc/sys/vm/laptop_mode ]; then
+if [ ! -w /proc/sys/fs/laptop_mode ]; then
echo "You do not have enough privileges to enable laptop_mode."
exit 1
fi
@@ -355,11 +355,11 @@
case "$KLEVEL" in
"2.4")
- echo "1" > /proc/sys/vm/laptop_mode
+ echo "1" > /proc/sys/fs/laptop_mode
echo "30 500 0 0 $AGE $AGE 60 20 0" > /proc/sys/vm/bdflush
;;
"2.6")
- echo "5" > /proc/sys/vm/laptop_mode
+ echo "5" > /proc/sys/fs/laptop_mode
echo "$AGE" > /proc/sys/vm/dirty_writeback_centisecs
echo "$AGE" > /proc/sys/vm/dirty_expire_centisecs
echo "$DIRTY_RATIO" > /proc/sys/vm/dirty_ratio
@@ -389,7 +389,7 @@
U_AGE=$((100*$DEF_UPDATE))
B_AGE=$((100*$DEF_AGE))
echo -n "Stopping laptop_mode"
- echo "0" > /proc/sys/vm/laptop_mode
+ echo "0" > /proc/sys/fs/laptop_mode
if [ -f /proc/sys/fs/xfs/age_buffer ] && [ ! -f /proc/sys/fs/xfs/lm_age_buffer ] ; then
# These need to be restored though, if there are no lm_*.
echo "$(($XFS_HZ*$DEF_XFS_AGE_BUFFER))" > /proc/sys/fs/xfs/age_buffer
next reply other threads:[~2004-04-05 13:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-05 13:50 Angelo Dell'Aera [this message]
2004-04-05 21:52 ` [PATCH] kernel 2.6.5-mm1 : laptop-mode Andrew Morton
2004-04-05 22:33 ` Angelo Dell'Aera
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20040405155055.3e9afab0.buffer@antifork.org \
--to=buffer@antifork.org \
--cc=akpm@osdl.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox