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fs: ext4: Add some defines for testing

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Add various defines which are not necessary for reading/writing
filesystems, but which are useful for creating them. These mostly come from
Linux v6.5-rc2 (what I had checked out).

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Sean Anderson 2023-10-14 16:47:50 -04:00 committed by Tom Rini
parent 44071cd5a8
commit 0bf3fec279
2 changed files with 15 additions and 0 deletions
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1
include/ext4fs.h
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@ -31,6 +31,7 @@
struct disk_partition;
#define EXT4_INDEX_FL 0x00001000 /* Inode uses hash tree index */
#define EXT4_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
#define EXT4_EXTENTS_FL 0x00080000 /* Inode uses extents */
#define EXT4_EXT_MAGIC 0xf30a
#define EXT4_FEATURE_RO_COMPAT_GDT_CSUM 0x0010

14
include/ext_common.h
View file

@ -35,6 +35,16 @@ struct cmd_tbl;
#define EXT2_PATH_MAX 4096
/* Maximum nesting of symlinks, used to prevent a loop. */
#define EXT2_MAX_SYMLINKCNT 8
/* Maximum file name length */
#define EXT2_NAME_LEN 255
/*
* Revision levels
*/
#define EXT2_GOOD_OLD_REV 0 /* The good old (original) format */
#define EXT2_DYNAMIC_REV 1 /* V2 format w/ dynamic inode sizes */
#define EXT2_GOOD_OLD_INODE_SIZE 128
/* Filetype used in directory entry. */
#define FILETYPE_UNKNOWN 0
@ -48,6 +58,10 @@ struct cmd_tbl;
#define FILETYPE_INO_DIRECTORY 0040000
#define FILETYPE_INO_SYMLINK 0120000
#define EXT2_ROOT_INO 2 /* Root inode */
#define EXT2_BOOT_LOADER_INO 5 /* Boot loader inode */
/* First non-reserved inode for old ext2 filesystems */
#define EXT2_GOOD_OLD_FIRST_INO 11
/* The size of an ext2 block in bytes. */
#define EXT2_BLOCK_SIZE(data) (1 << LOG2_BLOCK_SIZE(data))