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[PATCH] reiserfs endianness: annotate little-endian objects

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little-endian objects annotated as such; again, obviously no changes of
resulting code, we only replace __u16 with __le16, etc.  in relevant places.

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Cc: <reiserfs-dev@namesys.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Al Viro
2005-05-01 08:59:18 -07:00
committed by Linus Torvalds
parent 6a3a16f2ef
commit 3e8962be91
12 changed files with 138 additions and 130 deletions
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168
include/linux/reiserfs_fs.h
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@@ -114,47 +114,47 @@ if( !( cond ) ) \
struct journal_params {
__u32 jp_journal_1st_block; /* where does journal start from on its
__le32 jp_journal_1st_block; /* where does journal start from on its
* device */
__u32 jp_journal_dev; /* journal device st_rdev */
__u32 jp_journal_size; /* size of the journal */
__u32 jp_journal_trans_max; /* max number of blocks in a transaction. */
__u32 jp_journal_magic; /* random value made on fs creation (this
__le32 jp_journal_dev; /* journal device st_rdev */
__le32 jp_journal_size; /* size of the journal */
__le32 jp_journal_trans_max; /* max number of blocks in a transaction. */
__le32 jp_journal_magic; /* random value made on fs creation (this
* was sb_journal_block_count) */
__u32 jp_journal_max_batch; /* max number of blocks to batch into a
__le32 jp_journal_max_batch; /* max number of blocks to batch into a
* trans */
__u32 jp_journal_max_commit_age; /* in seconds, how old can an async
__le32 jp_journal_max_commit_age; /* in seconds, how old can an async
* commit be */
__u32 jp_journal_max_trans_age; /* in seconds, how old can a transaction
__le32 jp_journal_max_trans_age; /* in seconds, how old can a transaction
* be */
};
/* this is the super from 3.5.X, where X >= 10 */
struct reiserfs_super_block_v1
{
__u32 s_block_count; /* blocks count */
__u32 s_free_blocks; /* free blocks count */
__u32 s_root_block; /* root block number */
__le32 s_block_count; /* blocks count */
__le32 s_free_blocks; /* free blocks count */
__le32 s_root_block; /* root block number */
struct journal_params s_journal;
__u16 s_blocksize; /* block size */
__u16 s_oid_maxsize; /* max size of object id array, see
__le16 s_blocksize; /* block size */
__le16 s_oid_maxsize; /* max size of object id array, see
* get_objectid() commentary */
__u16 s_oid_cursize; /* current size of object id array */
__u16 s_umount_state; /* this is set to 1 when filesystem was
__le16 s_oid_cursize; /* current size of object id array */
__le16 s_umount_state; /* this is set to 1 when filesystem was
* umounted, to 2 - when not */
char s_magic[10]; /* reiserfs magic string indicates that
* file system is reiserfs:
* "ReIsErFs" or "ReIsEr2Fs" or "ReIsEr3Fs" */
__u16 s_fs_state; /* it is set to used by fsck to mark which
__le16 s_fs_state; /* it is set to used by fsck to mark which
* phase of rebuilding is done */
__u32 s_hash_function_code; /* indicate, what hash function is being use
__le32 s_hash_function_code; /* indicate, what hash function is being use
* to sort names in a directory*/
__u16 s_tree_height; /* height of disk tree */
__u16 s_bmap_nr; /* amount of bitmap blocks needed to address
__le16 s_tree_height; /* height of disk tree */
__le16 s_bmap_nr; /* amount of bitmap blocks needed to address
* each block of file system */
__u16 s_version; /* this field is only reliable on filesystem
__le16 s_version; /* this field is only reliable on filesystem
* with non-standard journal */
__u16 s_reserved_for_journal; /* size in blocks of journal area on main
__le16 s_reserved_for_journal; /* size in blocks of journal area on main
* device, we need to keep after
* making fs with non-standard journal */
} __attribute__ ((__packed__));
@@ -165,8 +165,8 @@ struct reiserfs_super_block_v1
struct reiserfs_super_block
{
struct reiserfs_super_block_v1 s_v1;
__u32 s_inode_generation;
__u32 s_flags; /* Right now used only by inode-attributes, if enabled */
__le32 s_inode_generation;
__le32 s_flags; /* Right now used only by inode-attributes, if enabled */
unsigned char s_uuid[16]; /* filesystem unique identifier */
unsigned char s_label[16]; /* filesystem volume label */
char s_unused[88] ; /* zero filled by mkreiserfs and
@@ -269,7 +269,7 @@ int is_reiserfs_jr (struct reiserfs_super_block * rs);
#define QUOTA_EXCEEDED -6
typedef __u32 b_blocknr_t;
typedef __u32 unp_t;
typedef __le32 unp_t;
struct unfm_nodeinfo {
unp_t unfm_nodenum;
@@ -376,8 +376,8 @@ static inline struct reiserfs_sb_info *REISERFS_SB(const struct super_block *sb)
// directories use this key as well as old files
//
struct offset_v1 {
__u32 k_offset;
__u32 k_uniqueness;
__le32 k_offset;
__le32 k_uniqueness;
} __attribute__ ((__packed__));
struct offset_v2 {
@@ -453,9 +453,9 @@ struct in_core_offset_v2 {
/* Key of an item determines its location in the S+tree, and
is composed of 4 components */
struct reiserfs_key {
__u32 k_dir_id; /* packing locality: by default parent
__le32 k_dir_id; /* packing locality: by default parent
directory object id */
__u32 k_objectid; /* object identifier */
__le32 k_objectid; /* object identifier */
union {
struct offset_v1 k_offset_v1;
struct offset_v2 k_offset_v2;
@@ -534,15 +534,15 @@ struct item_head
item. Note that the key, not this field, is used to
determine the item type, and thus which field this
union contains. */
__u16 ih_free_space_reserved;
__le16 ih_free_space_reserved;
/* Iff this is a directory item, this field equals the
number of directory entries in the directory item. */
__u16 ih_entry_count;
__le16 ih_entry_count;
} __attribute__ ((__packed__)) u;
__u16 ih_item_len; /* total size of the item body */
__u16 ih_item_location; /* an offset to the item body
__le16 ih_item_len; /* total size of the item body */
__le16 ih_item_location; /* an offset to the item body
* within the block */
__u16 ih_version; /* 0 for all old items, 2 for new
__le16 ih_version; /* 0 for all old items, 2 for new
ones. Highest bit is set by fsck
temporary, cleaned after all
done */
@@ -778,10 +778,10 @@ extern struct reiserfs_key root_key;
/* Header of a disk block. More precisely, header of a formatted leaf
or internal node, and not the header of an unformatted node. */
struct block_head {
__u16 blk_level; /* Level of a block in the tree. */
__u16 blk_nr_item; /* Number of keys/items in a block. */
__u16 blk_free_space; /* Block free space in bytes. */
__u16 blk_reserved;
__le16 blk_level; /* Level of a block in the tree. */
__le16 blk_nr_item; /* Number of keys/items in a block. */
__le16 blk_free_space; /* Block free space in bytes. */
__le16 blk_reserved;
/* dump this in v4/planA */
struct reiserfs_key blk_right_delim_key; /* kept only for compatibility */
};
@@ -845,19 +845,19 @@ struct block_head {
//
struct stat_data_v1
{
__u16 sd_mode; /* file type, permissions */
__u16 sd_nlink; /* number of hard links */
__u16 sd_uid; /* owner */
__u16 sd_gid; /* group */
__u32 sd_size; /* file size */
__u32 sd_atime; /* time of last access */
__u32 sd_mtime; /* time file was last modified */
__u32 sd_ctime; /* time inode (stat data) was last changed (except changes to sd_atime and sd_mtime) */
__le16 sd_mode; /* file type, permissions */
__le16 sd_nlink; /* number of hard links */
__le16 sd_uid; /* owner */
__le16 sd_gid; /* group */
__le32 sd_size; /* file size */
__le32 sd_atime; /* time of last access */
__le32 sd_mtime; /* time file was last modified */
__le32 sd_ctime; /* time inode (stat data) was last changed (except changes to sd_atime and sd_mtime) */
union {
__u32 sd_rdev;
__u32 sd_blocks; /* number of blocks file uses */
__le32 sd_rdev;
__le32 sd_blocks; /* number of blocks file uses */
} __attribute__ ((__packed__)) u;
__u32 sd_first_direct_byte; /* first byte of file which is stored
__le32 sd_first_direct_byte; /* first byte of file which is stored
in a direct item: except that if it
equals 1 it is a symlink and if it
equals ~(__u32)0 there is no
@@ -923,20 +923,20 @@ struct stat_data_v1
/* Stat Data on disk (reiserfs version of UFS disk inode minus the
address blocks) */
struct stat_data {
__u16 sd_mode; /* file type, permissions */
__u16 sd_attrs; /* persistent inode flags */
__u32 sd_nlink; /* number of hard links */
__u64 sd_size; /* file size */
__u32 sd_uid; /* owner */
__u32 sd_gid; /* group */
__u32 sd_atime; /* time of last access */
__u32 sd_mtime; /* time file was last modified */
__u32 sd_ctime; /* time inode (stat data) was last changed (except changes to sd_atime and sd_mtime) */
__u32 sd_blocks;
__le16 sd_mode; /* file type, permissions */
__le16 sd_attrs; /* persistent inode flags */
__le32 sd_nlink; /* number of hard links */
__le64 sd_size; /* file size */
__le32 sd_uid; /* owner */
__le32 sd_gid; /* group */
__le32 sd_atime; /* time of last access */
__le32 sd_mtime; /* time file was last modified */
__le32 sd_ctime; /* time inode (stat data) was last changed (except changes to sd_atime and sd_mtime) */
__le32 sd_blocks;
union {
__u32 sd_rdev;
__u32 sd_generation;
//__u32 sd_first_direct_byte;
__le32 sd_rdev;
__le32 sd_generation;
//__le32 sd_first_direct_byte;
/* first byte of file which is stored in a
direct item: except that if it equals 1
it is a symlink and if it equals
@@ -1019,12 +1019,12 @@ struct stat_data {
struct reiserfs_de_head
{
__u32 deh_offset; /* third component of the directory entry key */
__u32 deh_dir_id; /* objectid of the parent directory of the object, that is referenced
__le32 deh_offset; /* third component of the directory entry key */
__le32 deh_dir_id; /* objectid of the parent directory of the object, that is referenced
by directory entry */
__u32 deh_objectid; /* objectid of the object, that is referenced by directory entry */
__u16 deh_location; /* offset of name in the whole item */
__u16 deh_state; /* whether 1) entry contains stat data (for future), and 2) whether
__le32 deh_objectid; /* objectid of the object, that is referenced by directory entry */
__le16 deh_location; /* offset of name in the whole item */
__le16 deh_state; /* whether 1) entry contains stat data (for future), and 2) whether
entry is hidden (unlinked) */
} __attribute__ ((__packed__));
#define DEH_SIZE sizeof(struct reiserfs_de_head)
@@ -1084,10 +1084,10 @@ struct reiserfs_de_head
#define de_visible(deh) test_bit_unaligned (DEH_Visible, &((deh)->deh_state))
#define de_hidden(deh) !test_bit_unaligned (DEH_Visible, &((deh)->deh_state))
extern void make_empty_dir_item_v1 (char * body, __u32 dirid, __u32 objid,
__u32 par_dirid, __u32 par_objid);
extern void make_empty_dir_item (char * body, __u32 dirid, __u32 objid,
__u32 par_dirid, __u32 par_objid);
extern void make_empty_dir_item_v1 (char * body, __le32 dirid, __le32 objid,
__le32 par_dirid, __le32 par_objid);
extern void make_empty_dir_item (char * body, __le32 dirid, __le32 objid,
__le32 par_dirid, __le32 par_objid);
/* array of the entry headers */
/* get item body */
@@ -1186,9 +1186,9 @@ struct reiserfs_dir_entry
/* Disk child pointer: The pointer from an internal node of the tree
to a node that is on disk. */
struct disk_child {
__u32 dc_block_number; /* Disk child's block number. */
__u16 dc_size; /* Disk child's used space. */
__u16 dc_reserved;
__le32 dc_block_number; /* Disk child's block number. */
__le16 dc_size; /* Disk child's used space. */
__le16 dc_reserved;
};
#define DC_SIZE (sizeof(struct disk_child))
@@ -1656,10 +1656,10 @@ struct reiserfs_iget_args {
/* first block written in a commit. */
struct reiserfs_journal_desc {
__u32 j_trans_id ; /* id of commit */
__u32 j_len ; /* length of commit. len +1 is the commit block */
__u32 j_mount_id ; /* mount id of this trans*/
__u32 j_realblock[1] ; /* real locations for each block */
__le32 j_trans_id ; /* id of commit */
__le32 j_len ; /* length of commit. len +1 is the commit block */
__le32 j_mount_id ; /* mount id of this trans*/
__le32 j_realblock[1] ; /* real locations for each block */
} ;
#define get_desc_trans_id(d) le32_to_cpu((d)->j_trans_id)
@@ -1672,9 +1672,9 @@ struct reiserfs_journal_desc {
/* last block written in a commit */
struct reiserfs_journal_commit {
__u32 j_trans_id ; /* must match j_trans_id from the desc block */
__u32 j_len ; /* ditto */
__u32 j_realblock[1] ; /* real locations for each block */
__le32 j_trans_id ; /* must match j_trans_id from the desc block */
__le32 j_len ; /* ditto */
__le32 j_realblock[1] ; /* real locations for each block */
} ;
#define get_commit_trans_id(c) le32_to_cpu((c)->j_trans_id)
@@ -1689,9 +1689,9 @@ struct reiserfs_journal_commit {
** and this transaction does not need to be replayed.
*/
struct reiserfs_journal_header {
__u32 j_last_flush_trans_id ; /* id of last fully flushed transaction */
__u32 j_first_unflushed_offset ; /* offset in the log of where to start replay after a crash */
__u32 j_mount_id ;
__le32 j_last_flush_trans_id ; /* id of last fully flushed transaction */
__le32 j_first_unflushed_offset ; /* offset in the log of where to start replay after a crash */
__le32 j_mount_id ;
/* 12 */ struct journal_params jh_journal;
} ;
@@ -2170,7 +2170,7 @@ void reiserfs_init_alloc_options (struct super_block *s);
* to use for a new object underneat it. The locality is returned
* in disk byte order (le).
*/
u32 reiserfs_choose_packing(struct inode *dir);
__le32 reiserfs_choose_packing(struct inode *dir);
int is_reusable (struct super_block * s, b_blocknr_t block, int bit_value);
void reiserfs_free_block (struct reiserfs_transaction_handle *th, struct inode *, b_blocknr_t, int for_unformatted);