tree 4176db7f1cb1868b6ceb589061df2112f23c0e1f
parent f8c62f34fe868f5bcca88a32e4a5c52b67de661d
author Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com> 1376686680 -0700
committer Tony Luck <tony.luck@intel.com> 1376938430 -0700

pstore/ram: Read and write to the 'compressed' flag of pstore

In pstore write, add character 'C'(compressed) or 'D'(decompressed)
in the header while writing to Ram persistent buffer. In pstore read,
read the header and update the 'compressed' flag accordingly.

Signed-off-by: Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>