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| author | Al Viro <viro@www.linux.org.uk> | 2005-05-01 08:59:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-01 08:59:17 -0700 |
| commit | 6a3a16f2ef6f335286e2b2bf8284b0ab4ff38ec0 (patch) | |
| tree | ae559ba5915bf0ca29d6d5dfbd9f44e666f388ea /include | |
| parent | d46aa455dd5457fdbebad17db4ff4df655cbfbae (diff) | |
| download | linux-6a3a16f2ef6f335286e2b2bf8284b0ab4ff38ec0.tar.gz | |
[PATCH] reiserfs endianness: clone struct reiserfs_key
struct reiserfs_key cloned; (currently) identical struct in_core_key added.
Places that expect host-endian data in reiserfs_key switched to in_core_key.
Basically, we get annotation of reiserfs_key users and keep the resulting tree
obviously equivalent to original.
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/reiserfs_fs.h | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h index bccff8b17dc4e..d0867873a1b50 100644 --- a/include/linux/reiserfs_fs.h +++ b/include/linux/reiserfs_fs.h @@ -433,6 +433,23 @@ static inline void set_offset_v2_k_offset( struct offset_v2 *v2, loff_t offset ) # define set_offset_v2_k_offset(v2,val) (offset_v2_k_offset(v2) = (val)) #endif +struct in_core_offset_v1 { + __u32 k_offset; + __u32 k_uniqueness; +} __attribute__ ((__packed__)); + +struct in_core_offset_v2 { +#ifdef __LITTLE_ENDIAN + /* little endian version */ + __u64 k_offset:60; + __u64 k_type: 4; +#else + /* big endian version */ + __u64 k_type: 4; + __u64 k_offset:60; +#endif +} __attribute__ ((__packed__)); + /* Key of an item determines its location in the S+tree, and is composed of 4 components */ struct reiserfs_key { @@ -445,9 +462,18 @@ struct reiserfs_key { } __attribute__ ((__packed__)) u; } __attribute__ ((__packed__)); +struct in_core_key { + __u32 k_dir_id; /* packing locality: by default parent + directory object id */ + __u32 k_objectid; /* object identifier */ + union { + struct in_core_offset_v1 k_offset_v1; + struct in_core_offset_v2 k_offset_v2; + } __attribute__ ((__packed__)) u; +} __attribute__ ((__packed__)); struct cpu_key { - struct reiserfs_key on_disk_key; + struct in_core_key on_disk_key; int version; int key_length; /* 3 in all cases but direct2indirect and indirect2direct conversion */ @@ -1476,7 +1502,7 @@ struct tree_balance int fs_gen; /* saved value of `reiserfs_generation' counter see FILESYSTEM_CHANGED() macro in reiserfs_fs.h */ #ifdef DISPLACE_NEW_PACKING_LOCALITIES - struct reiserfs_key key; /* key pointer, to pass to block allocator or + struct in_core_key key; /* key pointer, to pass to block allocator or another low-level subsystem */ #endif } ; @@ -2117,7 +2143,7 @@ struct buffer_head * get_FEB (struct tree_balance *); struct __reiserfs_blocknr_hint { struct inode * inode; /* inode passed to allocator, if we allocate unf. nodes */ long block; /* file offset, in blocks */ - struct reiserfs_key key; + struct in_core_key key; struct path * path; /* search path, used by allocator to deternine search_start by * various ways */ struct reiserfs_transaction_handle * th; /* transaction handle is needed to log super blocks and |