ext4: Track lifetime disk writes

[mv-sheeva.git] / fs / ext4 / ext4_sb.h

diff --git a/fs/ext4/ext4_sb.h b/fs/ext4/ext4_sb.h
index 4e4d9cc3f40d855a0bcb3b98edb0c4ac8963cc62..50ab1169c378bbcc2e8e5b746fc2a6064a51e4ce 100644 (file)
--- a/fs/ext4/ext4_sb.h
+++ b/fs/ext4/ext4_sb.h
@@ -142,6 +142,10 @@ struct ext4_sb_info {
        /* locality groups */
        struct ext4_locality_group *s_locality_groups;
 
+       /* for write statistics */
+       unsigned long s_sectors_written_start;
+       u64 s_kbytes_written;
+
        unsigned int s_log_groups_per_flex;
        struct flex_groups *s_flex_groups;
 };