/*
- * linux/include/linux/ext3_fs_i.h
+ * linux/include/linux/ext4_fs_i.h
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
* Copyright (C) 1991, 1992 Linus Torvalds
*/
-#ifndef _LINUX_EXT3_FS_I
-#define _LINUX_EXT3_FS_I
+#ifndef _LINUX_EXT4_FS_I
+#define _LINUX_EXT4_FS_I
#include <linux/rwsem.h>
#include <linux/rbtree.h>
#include <linux/mutex.h>
/* data type for block offset of block group */
-typedef int ext3_grpblk_t;
+typedef int ext4_grpblk_t;
/* data type for filesystem-wide blocks number */
-typedef unsigned long ext3_fsblk_t;
+typedef unsigned long long ext4_fsblk_t;
-#define E3FSBLK "%lu"
-
-struct ext3_reserve_window {
- ext3_fsblk_t _rsv_start; /* First byte reserved */
- ext3_fsblk_t _rsv_end; /* Last byte reserved or 0 */
+struct ext4_reserve_window {
+ ext4_fsblk_t _rsv_start; /* First byte reserved */
+ ext4_fsblk_t _rsv_end; /* Last byte reserved or 0 */
};
-struct ext3_reserve_window_node {
+struct ext4_reserve_window_node {
struct rb_node rsv_node;
__u32 rsv_goal_size;
__u32 rsv_alloc_hit;
- struct ext3_reserve_window rsv_window;
+ struct ext4_reserve_window rsv_window;
};
-struct ext3_block_alloc_info {
+struct ext4_block_alloc_info {
/* information about reservation window */
- struct ext3_reserve_window_node rsv_window_node;
+ struct ext4_reserve_window_node rsv_window_node;
/*
- * was i_next_alloc_block in ext3_inode_info
+ * was i_next_alloc_block in ext4_inode_info
* is the logical (file-relative) number of the
* most-recently-allocated block in this file.
* We use this for detecting linearly ascending allocation requests.
*/
__u32 last_alloc_logical_block;
/*
- * Was i_next_alloc_goal in ext3_inode_info
+ * Was i_next_alloc_goal in ext4_inode_info
* is the *physical* companion to i_next_alloc_block.
* it the the physical block number of the block which was most-recentl
* allocated to this file. This give us the goal (target) for the next
* allocation when we detect linearly ascending requests.
*/
- ext3_fsblk_t last_alloc_physical_block;
+ ext4_fsblk_t last_alloc_physical_block;
};
#define rsv_start rsv_window._rsv_start
#define rsv_end rsv_window._rsv_end
+/*
+ * storage for cached extent
+ */
+struct ext4_ext_cache {
+ ext4_fsblk_t ec_start;
+ __u32 ec_block;
+ __u32 ec_len; /* must be 32bit to return holes */
+ __u32 ec_type;
+};
+
/*
* third extended file system inode data in memory
*/
-struct ext3_inode_info {
+struct ext4_inode_info {
__le32 i_data[15]; /* unconverted */
__u32 i_flags;
-#ifdef EXT3_FRAGMENTS
+#ifdef EXT4_FRAGMENTS
__u32 i_faddr;
__u8 i_frag_no;
__u8 i_frag_size;
#endif
- ext3_fsblk_t i_file_acl;
+ ext4_fsblk_t i_file_acl;
__u32 i_dir_acl;
__u32 i_dtime;
* near to their parent directory's inode.
*/
__u32 i_block_group;
- __u32 i_state; /* Dynamic state flags for ext3 */
+ __u32 i_state; /* Dynamic state flags for ext4 */
/* block reservation info */
- struct ext3_block_alloc_info *i_block_alloc_info;
+ struct ext4_block_alloc_info *i_block_alloc_info;
__u32 i_dir_start_lookup;
-#ifdef CONFIG_EXT3_FS_XATTR
+#ifdef CONFIG_EXT4DEV_FS_XATTR
/*
* Extended attributes can be read independently of the main file
* data. Taking i_mutex even when reading would cause contention
*/
struct rw_semaphore xattr_sem;
#endif
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
+#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
struct posix_acl *i_acl;
struct posix_acl *i_default_acl;
#endif
/*
* i_disksize keeps track of what the inode size is ON DISK, not
* in memory. During truncate, i_size is set to the new size by
- * the VFS prior to calling ext3_truncate(), but the filesystem won't
+ * the VFS prior to calling ext4_truncate(), but the filesystem won't
* set i_disksize to 0 until the truncate is actually under way.
*
* The intent is that i_disksize always represents the blocks which
*
* The only time when i_disksize and i_size may be different is when
* a truncate is in progress. The only things which change i_disksize
- * are ext3_get_block (growth) and ext3_truncate (shrinkth).
+ * are ext4_get_block (growth) and ext4_truncate (shrinkth).
*/
loff_t i_disksize;
__u16 i_extra_isize;
/*
- * truncate_mutex is for serialising ext3_truncate() against
- * ext3_getblock(). In the 2.4 ext2 design, great chunks of inode's
+ * truncate_mutex is for serialising ext4_truncate() against
+ * ext4_getblock(). In the 2.4 ext2 design, great chunks of inode's
* data tree are chopped off during truncate. We can't do that in
- * ext3 because whenever we perform intermediate commits during
+ * ext4 because whenever we perform intermediate commits during
* truncate, the inode and all the metadata blocks *must* be in a
* consistent state which allows truncation of the orphans to restart
* during recovery. Hence we must fix the get_block-vs-truncate race
*/
struct mutex truncate_mutex;
struct inode vfs_inode;
+
+ unsigned long i_ext_generation;
+ struct ext4_ext_cache i_cached_extent;
};
-#endif /* _LINUX_EXT3_FS_I */
+#endif /* _LINUX_EXT4_FS_I */
projects / linux-2.6-omap-h63xx.git / blobdiff