From: Theodore Ts'o Date: Thu, 31 May 2007 16:43:28 +0000 (-0400) Subject: Define/reserve new ext4 superblock fields X-Git-Tag: firefly_0821_release~28831^2 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=436bd75e47cf804dfe89f805106bb53ff577e99a;p=firefly-linux-kernel-4.4.55.git Define/reserve new ext4 superblock fields Signed-off-by: "Theodore Ts'o" --- diff --git a/include/linux/ext4_fs.h b/include/linux/ext4_fs.h index 14886847a04c..de1f9f78625a 100644 --- a/include/linux/ext4_fs.h +++ b/include/linux/ext4_fs.h @@ -513,7 +513,14 @@ struct ext4_super_block { /*150*/ __le32 s_blocks_count_hi; /* Blocks count */ __le32 s_r_blocks_count_hi; /* Reserved blocks count */ __le32 s_free_blocks_count_hi; /* Free blocks count */ - __u32 s_reserved[169]; /* Padding to the end of the block */ + __u16 s_min_extra_isize; /* All inodes have at least # bytes */ + __u16 s_want_extra_isize; /* New inodes should reserve # bytes */ + __u32 s_flags; /* Miscellaneous flags */ + __u16 s_raid_stride; /* RAID stride */ + __u16 s_mmp_interval; /* # seconds to wait in MMP checking */ + __u64 s_mmp_block; /* Block for multi-mount protection */ + __u32 s_raid_stripe_width; /* blocks on all data disks (N*stride)*/ + __u32 s_reserved[163]; /* Padding to the end of the block */ }; #ifdef __KERNEL__