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* pstore/ram: Add ftrace messages handlingAnton Vorontsov2012-07-171-0/+25
| | | | | | | | | The ftrace log size is configurable via ramoops.ftrace_size module option, and the log itself is available via <pstore-mount>/ftrace-ramoops file. Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pstore/ram: Add some more documentation and examplesAnton Vorontsov2012-06-131-0/+14
| | | | | | | | Suggested-by: Shuah Khan <shuahkhan@gmail.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Colin Cross <ccross@android.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pstore/ram: Add ECC supportAnton Vorontsov2012-05-171-0/+6
| | | | | | | | | | This is now straightforward: just introduce a module parameter and pass the needed value to persistent_ram_new(). 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>
* ramoops: Move to fs/pstore/ram.cAnton Vorontsov2012-05-161-1/+1
| | | | | | | | | | | | | | | | | | | | 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>
* ramoops: use pstore interfaceKees Cook2012-05-161-4/+4
| | | | | | | | | | | | | | | | | | Instead of using /dev/mem directly and forcing userspace to know (or extract) where the platform has defined persistent memory, how many slots it has, the sizes, etc, use the common pstore infrastructure to handle Oops gathering and extraction. This presents a much easier to use filesystem-based view to the memory region. This also means that any other tools that are written to understand pstore will automatically be able to process ramoops too. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Marco Stornelli <marco.stornelli@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Documentation: add Ramoops usage descriptionSergiu Iordache2011-08-131-0/+76
Add a documentation file describing the usage of Ramoops Signed-off-by: Sergiu Iordache <sergiu@chromium.org> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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