ore/exofs: Define new ore_verify_layout

[profile/ivi/kernel-adaptation-intel-automotive.git] / include / scsi / osd_ore.h

diff --git a/include/scsi/osd_ore.h b/include/scsi/osd_ore.h
index 492b70d..716dbea 100644 (file)
--- a/include/scsi/osd_ore.h
+++ b/include/scsi/osd_ore.h
@@ -42,6 +42,13 @@ struct ore_layout {
        unsigned group_width;
        u64      group_depth;
        unsigned group_count;
+
+       /* Cached often needed calculations filled in by
+        * ore_verify_layout
+        */
+       unsigned long max_io_length;    /* Max length that should be passed to
+                                        * ore_get_rw_state
+                                        */
 };
 
 struct ore_dev {
@@ -138,6 +145,7 @@ static inline unsigned ore_io_state_size(unsigned numdevs)
 }
 
 /* ore.c */
+int ore_verify_layout(unsigned total_comps, struct ore_layout *layout);
 int ore_get_rw_state(struct ore_layout *layout, struct ore_components *comps,
                     bool is_reading, u64 offset, u64 length,
                     struct ore_io_state **ios);