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ramoops: Move to fs/pstore/ram.c

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Since ramoops was converted to pstore, it has nothing to do with character
devices nowadays. Instead, today it is just a RAM backend for pstore.

The patch just moves things around. There are a few changes were needed
because of the move:

1. Kconfig and Makefiles fixups, of course.

2. In pstore/ram.c we have to play a bit with MODULE_PARAM_PREFIX, this
   is needed to keep user experience the same as with ramoops driver
   (i.e. so that ramoops.foo kernel command line arguments would still
   work).

Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Marco Stornelli <marco.stornelli@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Anton Vorontsov 2012-05-16 05:43:08 -07:00 committed by Greg Kroah-Hartman
parent d109a674a3
commit 1894a253db
7 changed files with 21 additions and 14 deletions
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2
Documentation/ramoops.txt
View File

@ -38,7 +38,7 @@ Setting the ramoops parameters can be done in 2 different manners:
2. Use a platform device and set the platform data. The parameters can then
be set through that platform data. An example of doing that is:
#include <linux/ramoops.h>
#include <linux/pstore_ram.h>
[...]
static struct ramoops_platform_data ramoops_data = {

9
drivers/char/Kconfig
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@ -585,15 +585,6 @@ config DEVPORT
source "drivers/s390/char/Kconfig"
config RAMOOPS
tristate "Log panic/oops to a RAM buffer"
depends on HAS_IOMEM
depends on PSTORE
default n
help
This enables panic and oops messages to be logged to a circular
buffer in RAM where it can be read back at some later point.
config MSM_SMD_PKT
bool "Enable device interface for some SMD packet ports"
default n

1
drivers/char/Makefile
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@ -58,7 +58,6 @@ obj-$(CONFIG_HANGCHECK_TIMER) += hangcheck-timer.o
obj-$(CONFIG_TCG_TPM) += tpm/
obj-$(CONFIG_PS3_FLASH) += ps3flash.o
obj-$(CONFIG_RAMOOPS) += ramoops.o
obj-$(CONFIG_JS_RTC) += js-rtc.o
js-rtc-y = rtc.o

14
fs/pstore/Kconfig
View File

@ -11,3 +11,17 @@ config PSTORE
(e.g. ACPI_APEI on X86) which will select this for you.
If you don't have a platform persistent store driver,
say N.
config PSTORE_RAM
tristate "Log panic/oops to a RAM buffer"
depends on HAS_IOMEM
depends on PSTORE
default n
help
This enables panic and oops messages to be logged to a circular
buffer in RAM where it can be read back at some later point.
Note that for historical reasons, the module will be named
"ramoops.ko".
For more information, see Documentation/ramoops.txt.

3
fs/pstore/Makefile
View File

@ -5,3 +5,6 @@
obj-y += pstore.o
pstore-objs += inode.o platform.o
ramoops-objs += ram.o
obj-$(CONFIG_PSTORE_RAM) += ramoops.o

2
drivers/char/ramoops.c → fs/pstore/ram.c
View File

@ -31,7 +31,7 @@
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/ramoops.h>
#include <linux/pstore_ram.h>
#define RAMOOPS_KERNMSG_HDR "===="
#define MIN_MEM_SIZE 4096UL

4
include/linux/ramoops.h → include/linux/pstore_ram.h
View File

@ -1,5 +1,5 @@
#ifndef __RAMOOPS_H
#define __RAMOOPS_H
#ifndef __LINUX_PSTORE_RAM_H__
#define __LINUX_PSTORE_RAM_H__
/*
* Ramoops platform data