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Diffstat (limited to 'fs/ext4/ext4_i.h')
| -rw-r--r-- | fs/ext4/ext4_i.h | 140 | 
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 4ce2187123a..00000000000 --- 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 */  |