The patch titled
add printk.time option, deprecate 'time'
has been added to the -mm tree. Its filename is
add-printktime-option-deprecate-time.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: add printk.time option, deprecate 'time'
From: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
Allow printk_time to be enabled or disabled at boot time. Previously it
could be enabled only, but not disabled.
Change printk_time from an int to a bool since that's what it is. Make its
logical (exposed) name just be "time" (was "printk_time").
Note: Changes kernel boot option syntax from "time" to "printk.time=value".
Since printk_time is declared as a module_param, it can also be
changed at run-time by modifying
/sys/module/printk/parameters/time
to a value of 1/Y/y to enabled it or 0/N/n to disable it.
Since printk_time is declared as a module_param, its value can also
be set at boot-time by using
linux printk.time=<bool>
If the "time" boot option is used, print a message that it is deprecated
and will be removed.
Note its planned removal in feature-removal-schedule.txt.
Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/feature-removal-schedule.txt | 8 ++++++++
Documentation/kernel-parameters.txt | 4 ++++
kernel/printk.c | 5 ++++-
3 files changed, 16 insertions(+), 1 deletion(-)
diff -puN Documentation/feature-removal-schedule.txt~add-printktime-option-deprecate-time Documentation/feature-removal-schedule.txt
--- a/Documentation/feature-removal-schedule.txt~add-printktime-option-deprecate-time
+++ a/Documentation/feature-removal-schedule.txt
@@ -307,6 +307,14 @@ Who: Jean Delvare <khali@xxxxxxxxxxxx>
---------------------------
+What: 'time' kernel boot parameter
+When: January 2008
+Why: replaced by 'printk.time=<value>' so that printk timestamps can be
+ enabled or disabled as needed
+Who: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
+
+---------------------------
+
What: drivers depending on OSS_OBSOLETE
When: options in 2.6.23, code in 2.6.25
Why: obsolete OSS drivers
diff -puN Documentation/kernel-parameters.txt~add-printktime-option-deprecate-time Documentation/kernel-parameters.txt
--- a/Documentation/kernel-parameters.txt~add-printktime-option-deprecate-time
+++ a/Documentation/kernel-parameters.txt
@@ -1450,6 +1450,9 @@ and is between 256 and 4096 characters.
the kernel console.
default: off.
+ printk.time= Show timing data prefixed to each printk message line
+ Format: <bool> (1/Y/y=enable, 0/N/n=disable)
+
profile= [KNL] Enable kernel profiling via /proc/profile
Format: [schedule,]<number>
Param: "schedule" - profile schedule points.
@@ -1881,6 +1884,7 @@ and is between 256 and 4096 characters.
Set number of hash buckets for TCP connection
time Show timing data prefixed to each printk message line
+ [deprecated, see 'printk.time']
tipar.timeout= [HW,PPT]
Set communications timeout in tenths of a second
diff -puN kernel/printk.c~add-printktime-option-deprecate-time kernel/printk.c
--- a/kernel/printk.c~add-printktime-option-deprecate-time
+++ a/kernel/printk.c
@@ -449,13 +449,16 @@ static int printk_time = 1;
#else
static int printk_time = 0;
#endif
-module_param(printk_time, int, S_IRUGO | S_IWUSR);
+module_param_named(time, printk_time, bool, S_IRUGO | S_IWUSR);
static int __init printk_time_setup(char *str)
{
if (*str)
return 0;
printk_time = 1;
+ printk(KERN_NOTICE "The 'time' option is deprecated and "
+ "is scheduled for removal in early 2008\n");
+ printk(KERN_NOTICE "Use 'printk.time=<value>' instead\n");
return 1;
}
_
Patches currently in -mm which might be from randy.dunlap@xxxxxxxxxx are
mm-merge-populate-and-nopage-into-fault-fixes-nonlinear.patch
romfs-printk-format-warnings.patch
add-pci_try_set_mwi.patch
git-unionfs.patch
add-pci_try_set_mwi-prism54pci.patch
git-ipwireless_cs.patch
doc-kernel-parameters-use-x86-32-tag-instead-of-ia-32.patch
add-argv_split-fix.patch
add-common-orderly_poweroff-fix.patch
kconfig-no-strange-misc-devices.patch
afs-drop-explicit-extern.patch
add-printktime-option-deprecate-time.patch
kernel-doc-add-tools-doc-in-makefile.patch
kernel-doc-fix-unnamed-struct-union-warning.patch
kernel-doc-strip-c99-comments.patch
kernel-doc-fix-leading-dot-in-man-mode-output.patch
kernel-doc-fix-leading-dot-in-man-mode-output-fix.patch
profile-likely-unlikely-macros.patch
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