xiaomi-sm8450/android_kernel_xiaomi_sm8450
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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