pstore: Add pstore type id for PPC64 opal nvram partition

This patch adds a new PPC64 partition type to be used for opal
specific nvram partition. A new partition type is needed as none
of the existing type matches this partition type.

Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

fs/pstore/inode.c

@@ -364,6 +364,9 @@ int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count,
 	case PSTORE_TYPE_PMSG:
 		scnprintf(name, sizeof(name), "pmsg-%s-%lld", psname, id);
 		break;
+	case PSTORE_TYPE_PPC_OPAL:
+		sprintf(name, "powerpc-opal-%s-%lld", psname, id);
+		break;
 	case PSTORE_TYPE_UNKNOWN:
 		scnprintf(name, sizeof(name), "unknown-%s-%lld", psname, id);
 		break;

include/linux/pstore.h

@@ -40,6 +40,7 @@ enum pstore_type_id {
 	PSTORE_TYPE_PPC_OF	= 5,
 	PSTORE_TYPE_PPC_COMMON	= 6,
 	PSTORE_TYPE_PMSG	= 7,
+	PSTORE_TYPE_PPC_OPAL	= 8,
 	PSTORE_TYPE_UNKNOWN	= 255
 };