pstore: Extend API for more flexibility in new backends

Some pstore implementations may not have a static context, so extend the
API to pass the pstore_info struct to all calls and allow for a context
pointer.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/include/linux/pstore.h b/include/linux/pstore.h
index 2455ef2683f0..b2f1d97f6909 100644
--- a/include/linux/pstore.h
+++ b/include/linux/pstore.h
@@ -38,9 +38,11 @@ struct pstore_info {
         int             (*open)(struct pstore_info *psi);
         int             (*close)(struct pstore_info *psi);
         ssize_t         (*read)(u64 *id, enum pstore_type_id *type,
-                        struct timespec *time);
-        u64             (*write)(enum pstore_type_id type, size_t size);
-        int             (*erase)(u64 id);
+                        struct timespec *time, struct pstore_info *psi);
+        u64             (*write)(enum pstore_type_id type, size_t size,
+                        struct pstore_info *psi);
+        int             (*erase)(u64 id, struct pstore_info *psi);
+        void            *data;
 };
 
 #ifdef CONFIG_PSTORE