powerpc/pseries: Read common partition via pstore

This patch exploits pstore subsystem to read details of common partition
in NVRAM to a separate file in /dev/pstore. For instance, common partition
details will be stored in a file named [common-nvram-6].

Signed-off-by: Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com>
Reviewed-by: Jim Keniston <jkenisto@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index 73148aef9e31..08c3d76b24ca 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -330,6 +330,9 @@ int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count,
         case PSTORE_TYPE_PPC_OF:
                 sprintf(name, "powerpc-ofw-%s-%lld", psname, id);
                 break;
+        case PSTORE_TYPE_PPC_COMMON:
+                sprintf(name, "powerpc-common-%s-%lld", psname, id);
+                break;
         case PSTORE_TYPE_UNKNOWN:
                 sprintf(name, "unknown-%s-%lld", psname, id);
                 break;