3 Commits

Author	SHA1	Message	Date
Tony Luck	9f6af27fb6	pstore: cleanups to pstore_dump() ... pstore_dump() can be called with many different "reason" codes. Save the name of the code in the persistent store record. Also - only worthwhile calling pstore_mkfile for KMSG_DUMP_OOPS - that is the only one where the kernel will continue running. Reviewed-by: Seiji Aguchi <seiji.aguchi@hds.com> Signed-off-by: Tony Luck <tony.luck@intel.com>	2011-03-22 16:01:49 -07:00
Luck, Tony	366f7e7a79	pstore: use mount option instead sysfs to tweak kmsg_bytes ... /sys/fs is a somewhat strange way to tweak what could more obviously be tuned with a mount option. Suggested-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2011-03-21 13:50:05 -07:00
Tony Luck	ca01d6dd2d	pstore: new filesystem interface to platform persistent storage ... Some platforms have a small amount of non-volatile storage that can be used to store information useful to diagnose the cause of a system crash. This is the generic part of a file system interface that presents information from the crash as a series of files in /dev/pstore. Once the information has been seen, the underlying storage is freed by deleting the files. Signed-off-by: Tony Luck <tony.luck@intel.com>	2010-12-28 14:25:21 -08:00