summaryrefslogtreecommitdiff
path: root/fs/ext4/ext4_i.h
diff options
context:
space:
mode:
authorTheodore Ts'o <tytso@mit.edu>2009-05-01 21:44:33 +0400
committerTheodore Ts'o <tytso@mit.edu>2009-05-01 21:44:33 +0400
commitd444c3c38189b3f18337a213855ac1c07af4e2d9 (patch)
tree180b83e442c9ab72e1553a19140e3f1169806d28 /fs/ext4/ext4_i.h
parent75507efb1372b6acf1aa6bf00ebd49ce196fd994 (diff)
downloadlinux-d444c3c38189b3f18337a213855ac1c07af4e2d9.tar.xz
ext4: Move the ext4_i.h header file into ext4.h
There is no longer a reason for a separate ext4_i.h header file, so move it into ext4.h just to make life easier for developers to find the relevant data structures and typedefs. Should also speed up compiles slightly, too. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4_i.h')
-rw-r--r--fs/ext4/ext4_i.h140
1 files changed, 0 insertions, 140 deletions
diff --git a/fs/ext4/ext4_i.h b/fs/ext4/ext4_i.h
deleted file mode 100644
index 4ce2187123aa..000000000000
--- a/fs/ext4/ext4_i.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * ext4_i.h
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * from
- *
- * linux/include/linux/minix_fs_i.h
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- */
-
-#ifndef _EXT4_I
-#define _EXT4_I
-
-#include <linux/rwsem.h>
-#include <linux/rbtree.h>
-#include <linux/seqlock.h>
-#include <linux/mutex.h>
-
-/* data type for block offset of block group */
-typedef int ext4_grpblk_t;
-
-/* data type for filesystem-wide blocks number */
-typedef unsigned long long ext4_fsblk_t;
-
-/* data type for file logical block number */
-typedef __u32 ext4_lblk_t;
-
-/* data type for block group number */
-typedef unsigned int ext4_group_t;
-
-/*
- * storage for cached extent
- */
-struct ext4_ext_cache {
- ext4_fsblk_t ec_start;
- ext4_lblk_t ec_block;
- __u32 ec_len; /* must be 32bit to return holes */
- __u32 ec_type;
-};
-
-/*
- * fourth extended file system inode data in memory
- */
-struct ext4_inode_info {
- __le32 i_data[15]; /* unconverted */
- __u32 i_flags;
- ext4_fsblk_t i_file_acl;
- __u32 i_dtime;
-
- /*
- * i_block_group is the number of the block group which contains
- * this file's inode. Constant across the lifetime of the inode,
- * it is ued for making block allocation decisions - we try to
- * place a file's data blocks near its inode block, and new inodes
- * near to their parent directory's inode.
- */
- ext4_group_t i_block_group;
- __u32 i_state; /* Dynamic state flags for ext4 */
-
- ext4_lblk_t i_dir_start_lookup;
-#ifdef CONFIG_EXT4_FS_XATTR
- /*
- * Extended attributes can be read independently of the main file
- * data. Taking i_mutex even when reading would cause contention
- * between readers of EAs and writers of regular file data, so
- * instead we synchronize on xattr_sem when reading or changing
- * EAs.
- */
- struct rw_semaphore xattr_sem;
-#endif
-#ifdef CONFIG_EXT4_FS_POSIX_ACL
- struct posix_acl *i_acl;
- struct posix_acl *i_default_acl;
-#endif
-
- struct list_head i_orphan; /* unlinked but open inodes */
-
- /*
- * 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 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
- * are used by this file. This allows recovery to restart truncate
- * on orphans if we crash during truncate. We actually write i_disksize
- * into the on-disk inode when writing inodes out, instead of i_size.
- *
- * 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 ext4_get_block (growth) and ext4_truncate (shrinkth).
- */
- loff_t i_disksize;
-
- /*
- * i_data_sem 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
- * 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
- * by other means, so we have i_data_sem.
- */
- struct rw_semaphore i_data_sem;
- struct inode vfs_inode;
- struct jbd2_inode jinode;
-
- struct ext4_ext_cache i_cached_extent;
- /*
- * File creation time. Its function is same as that of
- * struct timespec i_{a,c,m}time in the generic inode.
- */
- struct timespec i_crtime;
-
- /* mballoc */
- struct list_head i_prealloc_list;
- spinlock_t i_prealloc_lock;
-
- /* ialloc */
- ext4_group_t i_last_alloc_group;
-
- /* allocation reservation info for delalloc */
- unsigned int i_reserved_data_blocks;
- unsigned int i_reserved_meta_blocks;
- unsigned int i_allocated_meta_blocks;
- unsigned short i_delalloc_reserved_flag;
-
- /* on-disk additional length */
- __u16 i_extra_isize;
-
- spinlock_t i_block_reservation_lock;
-};
-
-#endif /* _EXT4_I */