From 436bd75e47cf804dfe89f805106bb53ff577e99a Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Thu, 31 May 2007 12:43:28 -0400 Subject: Define/reserve new ext4 superblock fields Signed-off-by: "Theodore Ts'o" --- include/linux/ext4_fs.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'include/linux/ext4_fs.h') 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__ -- cgit v1.2.3