Comments?
- Ted
On-disk format definition for huge files
- EXT4_FEATURE_RO_COMPAT_HUGE_FILE (0x0008) - change i_blocks to be
in units of s_blocksize units instead of 512-byte sectors, use
l_i_frag and l_i_fsize as i_blocks_hi (could also be part of 64BIT).
Signed-off-by: "Theodore Ts'o" <[email protected]>
Index: e2fsprogs/lib/ext2fs/ext2_fs.h
===================================================================
--- e2fsprogs.orig/lib/ext2fs/ext2_fs.h 2006-10-18 02:20:25.000000000 -0400
+++ e2fsprogs/lib/ext2fs/ext2_fs.h 2006-10-18 02:20:35.000000000 -0400
@@ -321,8 +321,7 @@
__u32 i_faddr; /* Fragment address */
union {
struct {
- __u8 l_i_frag; /* Fragment number */
- __u8 l_i_fsize; /* Fragment size */
+ __u16 l_i_blocks_hi;
__u16 i_pad1;
__u16 l_i_uid_high; /* these 2 fields */
__u16 l_i_gid_high; /* were reserved2[0] */
@@ -601,6 +600,7 @@
#define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
#define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
/* #define EXT2_FEATURE_RO_COMPAT_BTREE_DIR 0x0004 not used */
+#define EXT4_FEATURE_RO_COMPAT_HUGE_FILE 0x0008
#define EXT2_FEATURE_INCOMPAT_COMPRESSION 0x0001
#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002