diff options
| -rw-r--r-- | fs/ext3/acl.c | 8 | ||||
| -rw-r--r-- | fs/ext3/balloc.c | 10 | ||||
| -rw-r--r-- | fs/ext3/bitmap.c | 4 | ||||
| -rw-r--r-- | fs/ext3/dir.c | 7 | ||||
| -rw-r--r-- | fs/ext3/ext3.h (renamed from include/linux/ext3_fs.h) | 488 | ||||
| -rw-r--r-- | fs/ext3/ext3_jbd.c | 2 | ||||
| -rw-r--r-- | fs/ext3/file.c | 6 | ||||
| -rw-r--r-- | fs/ext3/fsync.c | 8 | ||||
| -rw-r--r-- | fs/ext3/hash.c | 4 | ||||
| -rw-r--r-- | fs/ext3/ialloc.c | 13 | ||||
| -rw-r--r-- | fs/ext3/inode.c | 12 | ||||
| -rw-r--r-- | fs/ext3/ioctl.c | 7 | ||||
| -rw-r--r-- | fs/ext3/namei.c | 14 | ||||
| -rw-r--r-- | fs/ext3/resize.c | 5 | ||||
| -rw-r--r-- | fs/ext3/super.c | 18 | ||||
| -rw-r--r-- | fs/ext3/symlink.c | 4 | ||||
| -rw-r--r-- | fs/ext3/xattr.c | 7 | ||||
| -rw-r--r-- | fs/ext3/xattr_security.c | 6 | ||||
| -rw-r--r-- | fs/ext3/xattr_trusted.c | 6 | ||||
| -rw-r--r-- | fs/ext3/xattr_user.c | 5 | ||||
| -rw-r--r-- | include/linux/ext3_fs_i.h | 151 | ||||
| -rw-r--r-- | include/linux/ext3_fs_sb.h | 91 | ||||
| -rw-r--r-- | include/linux/ext3_jbd.h | 229 |
23 files changed, 437 insertions, 668 deletions
diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c index 3091f62e55b6..c76832c8d192 100644 --- a/fs/ext3/acl.c +++ b/fs/ext3/acl.c @@ -4,13 +4,7 @@ * Copyright (C) 2001-2003 Andreas Gruenbacher, <agruen@suse.de> */ -#include <linux/init.h> -#include <linux/sched.h> -#include <linux/slab.h> -#include <linux/capability.h> -#include <linux/fs.h> -#include <linux/ext3_jbd.h> -#include <linux/ext3_fs.h> +#include "ext3.h" #include "xattr.h" #include "acl.h" diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c index 1e036b79384c..baac1b129fba 100644 --- a/fs/ext3/balloc.c +++ b/fs/ext3/balloc.c @@ -11,17 +11,9 @@ * David S. Miller (davem@caip.rutgers.edu), 1995 */ -#include <linux/time.h> -#include <linux/capability.h> -#include <linux/fs.h> -#include <linux/slab.h> -#include <linux/jbd.h> -#include <linux/ext3_fs.h> -#include <linux/ext3_jbd.h> #include <linux/quotaops.h> -#include <linux/buffer_head.h> #include <linux/blkdev.h> -#include <trace/events/ext3.h> +#include "ext3.h" /* * balloc.c contains the blocks allocation and deallocation routines diff --git a/fs/ext3/bitmap.c b/fs/ext3/bitmap.c index 6afc39d80253..909d13e26560 100644 --- a/fs/ext3/bitmap.c +++ b/fs/ext3/bitmap.c @@ -7,9 +7,7 @@ * Universite Pierre et Marie Curie (Paris VI) */ -#include <linux/buffer_head.h> -#include <linux/jbd.h> -#include <linux/ext3_fs.h> +#include "ext3.h" #ifdef EXT3FS_DEBUG diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c index 34f0a072b935..cc761ad8fa57 100644 --- a/fs/ext3/dir.c +++ b/fs/ext3/dir.c @@ -21,12 +21,7 @@ * */ -#include <linux/fs.h> -#include <linux/jbd.h> -#include <linux/ext3_fs.h> -#include <linux/buffer_head.h> -#include <linux/slab.h> -#include <linux/rbtree.h> +#include "ext3.h" static unsigned char ext3_filetype_table[] = { DT_UNKNOWN, DT_REG, DT_DIR, DT_CHR, DT_BLK, DT_FIFO, DT_SOCK, DT_LNK diff --git a/include/linux/ext3_fs.h b/fs/ext3/ext3.h index f5a84eef6ed2..b6515fd7e56c 100644 --- a/include/linux/ext3_fs.h +++ b/fs/ext3/ext3.h @@ -1,5 +1,11 @@ /* - * linux/include/linux/ext3_fs.h + * Written by Stephen C. Tweedie <sct@redhat.com>, 1999 + * + * Copyright 1998--1999 Red Hat corp --- All Rights Reserved + * + * This file is part of the Linux kernel and is made available under + * the terms of the GNU General Public License, version 2, or at your + * option, any later version, incorporated herein by reference. * * Copyright (C) 1992, 1993, 1994, 1995 * Remy Card (card@masi.ibp.fr) @@ -13,12 +19,11 @@ * Copyright (C) 1991, 1992 Linus Torvalds */ -#ifndef _LINUX_EXT3_FS_H -#define _LINUX_EXT3_FS_H - -#include <linux/types.h> +#include <linux/fs.h> +#include <linux/jbd.h> #include <linux/magic.h> #include <linux/bug.h> +#include <linux/blockgroup_lock.h> /* * The second extended filesystem constants/structures @@ -75,29 +80,12 @@ #define EXT3_MIN_BLOCK_SIZE 1024 #define EXT3_MAX_BLOCK_SIZE 65536 #define EXT3_MIN_BLOCK_LOG_SIZE 10 -#ifdef __KERNEL__ -# define EXT3_BLOCK_SIZE(s) ((s)->s_blocksize) -#else -# define EXT3_BLOCK_SIZE(s) (EXT3_MIN_BLOCK_SIZE << (s)->s_log_block_size) -#endif +#define EXT3_BLOCK_SIZE(s) ((s)->s_blocksize) #define EXT3_ADDR_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (__u32)) -#ifdef __KERNEL__ -# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits) -#else -# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10) -#endif -#ifdef __KERNEL__ +#define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits) #define EXT3_ADDR_PER_BLOCK_BITS(s) (EXT3_SB(s)->s_addr_per_block_bits) #define EXT3_INODE_SIZE(s) (EXT3_SB(s)->s_inode_size) #define EXT3_FIRST_INO(s) (EXT3_SB(s)->s_first_ino) -#else -#define EXT3_INODE_SIZE(s) (((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \ - EXT3_GOOD_OLD_INODE_SIZE : \ - (s)->s_inode_size) -#define EXT3_FIRST_INO(s) (((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \ - EXT3_GOOD_OLD_FIRST_INO : \ - (s)->s_first_ino) -#endif /* * Macro-instructions used to manage fragments @@ -105,13 +93,8 @@ #define EXT3_MIN_FRAG_SIZE 1024 #define EXT3_MAX_FRAG_SIZE 4096 #define EXT3_MIN_FRAG_LOG_SIZE 10 -#ifdef __KERNEL__ -# define EXT3_FRAG_SIZE(s) (EXT3_SB(s)->s_frag_size) -# define EXT3_FRAGS_PER_BLOCK(s) (EXT3_SB(s)->s_frags_per_block) -#else -# define EXT3_FRAG_SIZE(s) (EXT3_MIN_FRAG_SIZE << (s)->s_log_frag_size) -# define EXT3_FRAGS_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / EXT3_FRAG_SIZE(s)) -#endif +#define EXT3_FRAG_SIZE(s) (EXT3_SB(s)->s_frag_size) +#define EXT3_FRAGS_PER_BLOCK(s) (EXT3_SB(s)->s_frags_per_block) /* * Structure of a blocks group descriptor @@ -131,16 +114,10 @@ struct ext3_group_desc /* * Macro-instructions used to manage group descriptors */ -#ifdef __KERNEL__ -# define EXT3_BLOCKS_PER_GROUP(s) (EXT3_SB(s)->s_blocks_per_group) -# define EXT3_DESC_PER_BLOCK(s) (EXT3_SB(s)->s_desc_per_block) -# define EXT3_INODES_PER_GROUP(s) (EXT3_SB(s)->s_inodes_per_group) -# define EXT3_DESC_PER_BLOCK_BITS(s) (EXT3_SB(s)->s_desc_per_block_bits) -#else -# define EXT3_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group) -# define EXT3_DESC_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (struct ext3_group_desc)) -# define EXT3_INODES_PER_GROUP(s) ((s)->s_inodes_per_group) -#endif +#define EXT3_BLOCKS_PER_GROUP(s) (EXT3_SB(s)->s_blocks_per_group) +#define EXT3_DESC_PER_BLOCK(s) (EXT3_SB(s)->s_desc_per_block) +#define EXT3_INODES_PER_GROUP(s) (EXT3_SB(s)->s_inodes_per_group) +#define EXT3_DESC_PER_BLOCK_BITS(s) (EXT3_SB(s)->s_desc_per_block_bits) /* * Constants relative to the data blocks @@ -336,7 +313,6 @@ struct ext3_inode { #define i_size_high i_dir_acl -#if defined(__KERNEL__) || defined(__linux__) #define i_reserved1 osd1.linux1.l_i_reserved1 #define i_frag osd2.linux2.l_i_frag #define i_fsize osd2.linux2.l_i_fsize @@ -346,24 +322,6 @@ struct ext3_inode { #define i_gid_high osd2.linux2.l_i_gid_high #define i_reserved2 osd2.linux2.l_i_reserved2 -#elif defined(__GNU__) - -#define i_translator osd1.hurd1.h_i_translator -#define i_frag osd2.hurd2.h_i_frag; -#define i_fsize osd2.hurd2.h_i_fsize; -#define i_uid_high osd2.hurd2.h_i_uid_high -#define i_gid_high osd2.hurd2.h_i_gid_high -#define i_author osd2.hurd2.h_i_author - -#elif defined(__masix__) - -#define i_reserved1 osd1.masix1.m_i_reserved1 -#define i_frag osd2.masix2.m_i_frag -#define i_fsize osd2.masix2.m_i_fsize -#define i_reserved2 osd2.masix2.m_i_reserved2 - -#endif /* defined(__KERNEL__) || defined(__linux__) */ - /* * File system states */ @@ -531,9 +489,197 @@ struct ext3_super_block { __u32 s_reserved[162]; /* Padding to the end of the block */ }; -#ifdef __KERNEL__ -#include <linux/ext3_fs_i.h> -#include <linux/ext3_fs_sb.h> +/* data type for block offset of block group */ +typedef int ext3_grpblk_t; + +/* data type for filesystem-wide blocks number */ +typedef unsigned long ext3_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 ext3_reserve_window_node { + struct rb_node rsv_node; + __u32 rsv_goal_size; + __u32 rsv_alloc_hit; + struct ext3_reserve_window rsv_window; +}; + +struct ext3_block_alloc_info { + /* information about reservation window */ + struct ext3_reserve_window_node rsv_window_node; + /* + * was i_next_alloc_block in ext3_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 + * is the *physical* companion to i_next_alloc_block. + * it 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; +}; + +#define rsv_start rsv_window._rsv_start +#define rsv_end rsv_window._rsv_end + +/* + * third extended file system inode data in memory + */ +struct ext3_inode_info { + __le32 i_data[15]; /* unconverted */ + __u32 i_flags; +#ifdef EXT3_FRAGMENTS + __u32 i_faddr; + __u8 i_frag_no; + __u8 i_frag_size; +#endif + ext3_fsblk_t i_file_acl; + __u32 i_dir_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. + */ + __u32 i_block_group; + unsigned long i_state_flags; /* Dynamic state flags for ext3 */ + + /* block reservation info */ + struct ext3_block_alloc_info *i_block_alloc_info; + + __u32 i_dir_start_lookup; +#ifdef CONFIG_EXT3_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 + + 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 ext3_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 ext3_get_block (growth) and ext3_truncate (shrinkth). + */ + loff_t i_disksize; + + /* on-disk additional length */ + __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 + * data tree are chopped off during truncate. We can't do that in + * ext3 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 truncate_mutex. + */ + struct mutex truncate_mutex; + + /* + * Transactions that contain inode's metadata needed to complete + * fsync and fdatasync, respectively. + */ + atomic_t i_sync_tid; + atomic_t i_datasync_tid; + + struct inode vfs_inode; +}; + +/* + * third extended-fs super-block data in memory + */ +struct ext3_sb_info { + unsigned long s_frag_size; /* Size of a fragment in bytes */ + unsigned long s_frags_per_block;/* Number of fragments per block */ + unsigned long s_inodes_per_block;/* Number of inodes per block */ + unsigned long s_frags_per_group;/* Number of fragments in a group */ + unsigned long s_blocks_per_group;/* Number of blocks in a group */ + unsigned long s_inodes_per_group;/* Number of inodes in a group */ + unsigned long s_itb_per_group; /* Number of inode table blocks per group */ + unsigned long s_gdb_count; /* Number of group descriptor blocks */ + unsigned long s_desc_per_block; /* Number of group descriptors per block */ + unsigned long s_groups_count; /* Number of groups in the fs */ + unsigned long s_overhead_last; /* Last calculated overhead */ + unsigned long s_blocks_last; /* Last seen block count */ + struct buffer_head * s_sbh; /* Buffer containing the super block */ + struct ext3_super_block * s_es; /* Pointer to the super block in the buffer */ + struct buffer_head ** s_group_desc; + unsigned long s_mount_opt; + ext3_fsblk_t s_sb_block; + uid_t s_resuid; + gid_t s_resgid; + unsigned short s_mount_state; + unsigned short s_pad; + int s_addr_per_block_bits; + int s_desc_per_block_bits; + int s_inode_size; + int s_first_ino; + spinlock_t s_next_gen_lock; + u32 s_next_generation; + u32 s_hash_seed[4]; + int s_def_hash_version; + int s_hash_unsigned; /* 3 if hash should be signed, 0 if not */ + struct percpu_counter s_freeblocks_counter; + struct percpu_counter s_freeinodes_counter; + struct percpu_counter s_dirs_counter; + struct blockgroup_lock *s_blockgroup_lock; + + /* root of the per fs reservation window tree */ + spinlock_t s_rsv_window_lock; + struct rb_root s_rsv_window_root; + struct ext3_reserve_window_node s_rsv_window_head; + + /* Journaling */ + struct inode * s_journal_inode; + struct journal_s * s_journal; + struct list_head s_orphan; + struct mutex s_orphan_lock; + struct mutex s_resize_lock; + unsigned long s_commit_interval; + struct block_device *journal_bdev; +#ifdef CONFIG_QUOTA + char *s_qf_names[MAXQUOTAS]; /* Names of quota files with journalled quota */ + int s_jquota_fmt; /* Format of quota to use */ +#endif +}; + +static inline spinlock_t * +sb_bgl_lock(struct ext3_sb_info *sbi, unsigned int block_group) +{ + return bgl_lock_ptr(sbi->s_blockgroup_lock, block_group); +} + static inline struct ext3_sb_info * EXT3_SB(struct super_block *sb) { return sb->s_fs_info; @@ -576,12 +722,6 @@ static inline void ext3_clear_inode_state(struct inode *inode, int bit) { clear_bit(bit, &EXT3_I(inode)->i_state_flags); } -#else -/* Assume that user mode programs are passing in an ext3fs superblock, not - * a kernel struct super_block. This will allow us to call the feature-test - * macros from user land. */ -#define EXT3_SB(sb) (sb) -#endif #define NEXT_ORPHAN(inode) EXT3_I(inode)->i_dtime @@ -771,8 +911,6 @@ static inline __le16 ext3_rec_len_to_disk(unsigned len) #define DX_HASH_HALF_MD4_UNSIGNED 4 #define DX_HASH_TEA_UNSIGNED 5 -#ifdef __KERNEL__ - /* hash info structure used by the directory hash */ struct dx_hash_info { @@ -974,7 +1112,211 @@ extern const struct inode_operations ext3_special_inode_operations; extern const struct inode_operations ext3_symlink_inode_operations; extern const struct inode_operations ext3_fast_symlink_inode_operations; +#define EXT3_JOURNAL(inode) (EXT3_SB((inode)->i_sb)->s_journal) + +/* Define the number of blocks we need to account to a transaction to + * modify one block of data. + * + * We may have to touch one inode, one bitmap buffer, up to three + * indirection blocks, the group and superblock summaries, and the data + * block to complete the transaction. */ + +#define EXT3_SINGLEDATA_TRANS_BLOCKS 8U + +/* Extended attribute operations touch at most two data buffers, + * two bitmap buffers, and two group summaries, in addition to the inode + * and the superblock, which are already accounted for. */ + +#define EXT3_XATTR_TRANS_BLOCKS 6U + +/* Define the minimum size for a transaction which modifies data. This + * needs to take into account the fact that we may end up modifying two + * quota files too (one for the group, one for the user quota). The + * superblock only gets updated once, of course, so don't bother + * counting that again for the quota updates. */ + +#define EXT3_DATA_TRANS_BLOCKS(sb) (EXT3_SINGLEDATA_TRANS_BLOCKS + \ + EXT3_XATTR_TRANS_BLOCKS - 2 + \ + EXT3_MAXQUOTAS_TRANS_BLOCKS(sb)) + +/* Delete operations potentially hit one directory's namespace plus an + * entire inode, plus arbitrary amounts of bitmap/indirection data. Be + * generous. We can grow the delete transaction later if necessary. */ + +#define EXT3_DELETE_TRANS_BLOCKS(sb) (EXT3_MAXQUOTAS_TRANS_BLOCKS(sb) + 64) + +/* Define an arbitrary limit for the amount of data we will anticipate + * writing to any given transaction. For unbounded transactions such as + * write(2) and truncate(2) we can write more than this, but we always + * start off at the maximum transaction size and grow the transaction + * optimistically as we go. */ + +#define EXT3_MAX_TRANS_DATA 64U + +/* We break up a large truncate or write transaction once the handle's + * buffer credits gets this low, we need either to extend the + * transaction or to start a new one. Reserve enough space here for + * inode, bitmap, superblock, group and indirection updates for at least + * one block, plus two quota updates. Quota allocations are not + * needed. */ + +#define EXT3_RESERVE_TRANS_BLOCKS 12U + +#define EXT3_INDEX_EXTRA_TRANS_BLOCKS 8 + +#ifdef CONFIG_QUOTA +/* Amount of blocks needed for quota update - we know that the structure was + * allocated so we need to update only inode+data */ +#define EXT3_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 2 : 0) +/* Amount of blocks needed for quota insert/delete - we do some block writes + * but inode, sb and group updates are done only once */ +#define EXT3_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_INIT_ALLOC*\ + (EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_INIT_REWRITE) : 0) +#define EXT3_QUOTA_DEL_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_DEL_ALLOC*\ + (EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_DEL_REWRITE) : 0) +#else +#define EXT3_QUOTA_TRANS_BLOCKS(sb) 0 +#define EXT3_QUOTA_INIT_BLOCKS(sb) 0 +#define EXT3_QUOTA_DEL_BLOCKS(sb) 0 +#endif +#define EXT3_MAXQUOTAS_TRANS_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_TRANS_BLOCKS(sb)) +#define EXT3_MAXQUOTAS_INIT_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_INIT_BLOCKS(sb)) +#define EXT3_MAXQUOTAS_DEL_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_DEL_BLOCKS(sb)) + +int +ext3_mark_iloc_dirty(handle_t *handle, + struct inode *inode, + struct ext3_iloc *iloc); + +/* + * On success, We end up with an outstanding reference count against + * iloc->bh. This _must_ be cleaned up later. + */ + +int ext3_reserve_inode_write(handle_t *handle, struct inode *inode, + struct ext3_iloc *iloc); + +int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode); + +/* + * Wrapper functions with which ext3 calls into JBD. The intent here is + * to allow these to be turned into appropriate stubs so ext3 can control + * ext2 filesystems, so ext2+ext3 systems only nee one fs. This work hasn't + * been done yet. + */ + +static inline void ext3_journal_release_buffer(handle_t *handle, + struct buffer_head *bh) +{ + journal_release_buffer(handle, bh); +} + +void ext3_journal_abort_handle(const char *caller, const char *err_fn, + struct buffer_head *bh, handle_t *handle, int err); + +int __ext3_journal_get_undo_access(const char *where, handle_t *handle, + struct buffer_head *bh); + +int __ext3_journal_get_write_access(const char *where, handle_t *handle, + struct buffer_head *bh); + +int __ext3_journal_forget(const char *where, handle_t *handle, + struct buffer_head *bh); -#endif /* __KERNEL__ */ +int __ext3_journal_revoke(const char *where, handle_t *handle, + unsigned long blocknr, struct buffer_head *bh); + +int __ext3_journal_get_create_access(const char *where, + handle_t *handle, struct buffer_head *bh); + +int __ext3_journal_dirty_metadata(const char *where, + handle_t *handle, struct buffer_head *bh); + +#define ext3_journal_get_undo_access(handle, bh) \ + __ext3_journal_get_undo_access(__func__, (handle), (bh)) +#define ext3_journal_get_write_access(handle, bh) \ + __ext3_journal_get_write_access(__func__, (handle), (bh)) +#define ext3_journal_revoke(handle, blocknr, bh) \ + __ext3_journal_revoke(__func__, (handle), (blocknr), (bh)) +#define ext3_journal_get_create_access(handle, bh) \ + __ext3_journal_get_create_access(__func__, (handle), (bh)) +#define ext3_journal_dirty_metadata(handle, bh) \ + __ext3_journal_dirty_metadata(__func__, (handle), (bh)) +#define ext3_journal_forget(handle, bh) \ + __ext3_journal_forget(__func__, (handle), (bh)) + +int ext3_journal_dirty_data(handle_t *handle, struct buffer_head *bh); + +handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks); +int __ext3_journal_stop(const char *where, handle_t *handle); + +static inline handle_t *ext3_journal_start(struct inode *inode, int nblocks) +{ + return ext3_journal_start_sb(inode->i_sb, nblocks); +} + +#define ext3_journal_stop(handle) \ + __ext3_journal_stop(__func__, (handle)) + +static inline handle_t *ext3_journal_current_handle(void) +{ + return journal_current_handle(); +} + +static inline int ext3_journal_extend(handle_t *handle, int nblocks) +{ + return journal_extend(handle, nblocks); +} + +static inline int ext3_journal_restart(handle_t *handle, int nblocks) +{ + return journal_restart(handle, nblocks); +} + +static inline int ext3_journal_blocks_per_page(struct inode *inode) +{ + return journal_blocks_per_page(inode); +} + +static inline int ext3_journal_force_commit(journal_t *journal) +{ + return journal_force_commit(journal); +} + +/* super.c */ +int ext3_force_commit(struct super_block *sb); + +static inline int ext3_should_journal_data(struct inode *inode) +{ + if (!S_ISREG(inode->i_mode)) + return 1; + if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA) + return 1; + if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL) + return 1; + return 0; +} + +static inline int ext3_should_order_data(struct inode *inode) +{ + if (!S_ISREG(inode->i_mode)) + return 0; + if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL) + return 0; + if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA) + return 1; + return 0; +} + +static inline int ext3_should_writeback_data(struct inode *inode) +{ + if (!S_ISREG(inode->i_mode)) + return 0; + if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL) + return 0; + if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA) + return 1; + return 0; +} -#endif /* _LINUX_EXT3_FS_H */ +#include <trace/events/ext3.h> diff --git a/fs/ext3/ext3_jbd.c b/fs/ext3/ext3_jbd.c index d401f148d74d..785a3261a26c 100644 --- a/fs/ext3/ext3_jbd.c +++ b/fs/ext3/ext3_jbd.c @@ -2,7 +2,7 @@ * Interface between ext3 and JBD */ -#include <linux/ext3_jbd.h> +#include "ext3.h" int __ext3_journal_get_undo_access(const char *where, handle_t *handle, struct buffer_head *bh) diff --git a/fs/ext3/file.c b/fs/ext3/file.c index 724df69847dc..25cb413277e9 100644 --- a/fs/ext3/file.c +++ b/fs/ext3/file.c @@ -18,12 +18,8 @@ * (jj@sunsite.ms.mff.cuni.cz) */ -#include <linux/time.h> -#include <linux/fs.h> -#include <linux/jbd.h> #include <linux/quotaops.h> -#include <linux/ext3_fs.h> -#include <linux/ext3_jbd.h> +#include "ext3.h" #include "xattr.h" #include "acl.h" diff --git a/fs/ext3/fsync.c b/fs/ext3/fsync.c index 1860ed356323..d4dff278cbd8 100644 --- a/fs/ext3/fsync.c +++ b/fs/ext3/fsync.c @@ -22,15 +22,9 @@ * we can depend on generic_block_fdatasync() to sync the data blocks. */ -#include <linux/time.h> #include <linux/blkdev.h> -#include <linux/fs.h> -#include <linux/sched.h> #include <linux/writeback.h> -#include <linux/jbd.h> -#include <linux/ext3_fs.h> -#include <linux/ext3_jbd.h> -#include <trace/events/ext3.h> +#include "ext3.h" /* * akpm: A new design for ext3_sync_file(). diff --git a/fs/ext3/hash.c b/fs/ext3/hash.c index 7d215b4d4f2e..d10231ddcf8a 100644 --- a/fs/ext3/hash.c +++ b/fs/ext3/hash.c @@ -9,9 +9,7 @@ * License. */ -#include <linux/fs.h> -#include <linux/jbd.h> -#include <linux/ext3_fs.h> +#include "ext3.h" #include <linux/cryptohash.h> #define DELTA 0x9E3779B9 diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c index 1cde28438014..e3c39e4cec19 100644 --- a/fs/ext3/ialloc.c +++ b/fs/ext3/ialloc.c @@ -12,21 +12,10 @@ * David S. Miller (davem@caip.rutgers.edu), 1995 */ -#include <linux/time.h> -#include <linux/fs.h> -#include <linux/jbd.h> -#include <linux/ext3_fs.h> -#include <linux/ext3_jbd.h> -#include <linux/stat.h> -#include <linux/string.h> #include <linux/quotaops.h> -#include <linux/buffer_head.h> #include <linux/random.h> -#include <linux/bitops.h> -#include <trace/events/ext3.h> - -#include <asm/byteorder.h> +#include "ext3.h" #include "xattr.h" #include "acl.h" diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index 6d3418662b54..10d7812f6021 100644 --- a/fs/ext3/inode.c +++ b/fs/ext3/inode.c @@ -22,22 +22,12 @@ * Assorted race fixes, rewrite of ext3_get_block() by Al Viro, 2000 */ -#include <linux/fs.h> -#include <linux/time.h> -#include <linux/ext3_jbd.h> -#include <linux/jbd.h> #include <linux/highuid.h> -#include <linux/pagemap.h> #include <linux/quotaops.h> -#include <linux/string.h> -#include <linux/buffer_head.h> #include <linux/writeback.h> #include <linux/mpage.h> -#include <linux/uio.h> -#include <linux/bio.h> -#include <linux/fiemap.h> #include <linux/namei.h> -#include <trace/events/ext3.h> +#include "ext3.h" #include "xattr.h" #include "acl.h" diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c index 4af574ce4a46..677a5c27dc69 100644 --- a/fs/ext3/ioctl.c +++ b/fs/ext3/ioctl.c @@ -7,15 +7,10 @@ * Universite Pierre et Marie Curie (Paris VI) */ -#include <linux/fs.h> -#include <linux/jbd.h> -#include <linux/capability.h> -#include <linux/ext3_fs.h> -#include <linux/ext3_jbd.h> #include <linux/mount.h> -#include <linux/time.h> #include <linux/compat.h> #include <asm/uaccess.h> +#include "ext3.h" long ext3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c index e8e211795e9f..d7940b24cf68 100644 --- a/fs/ext3/namei.c +++ b/fs/ext3/namei.c @@ -24,20 +24,8 @@ * Theodore Ts'o, 2002 */ -#include <linux/fs.h> -#include <linux/pagemap.h> -#include <linux/jbd.h> -#include <linux/time.h> -#include <linux/ext3_fs.h> -#include <linux/ext3_jbd.h> -#include <linux/fcntl.h> -#include <linux/stat.h> -#include <linux/string.h> #include <linux/quotaops.h> -#include <linux/buffer_head.h> -#include <linux/bio.h> -#include <trace/events/ext3.h> - +#include "ext3.h" #include "namei.h" #include "xattr.h" #include "acl.h" diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c index 7916e4ce166a..0f814f3450de 100644 --- a/fs/ext3/resize.c +++ b/fs/ext3/resize.c @@ -11,10 +11,7 @@ #define EXT3FS_DEBUG -#include <linux/ext3_jbd.h> - -#include <linux/errno.h> -#include <linux/slab.h> +#include "ext3.h" #define outside(b, first, last) ((b) < (first) || (b) >= (last)) diff --git a/fs/ext3/super.c b/fs/ext3/super.c index e0b45b93327b..cf0b5921cf0f 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -17,22 +17,12 @@ */ #include <linux/module.h> -#include <linux/string.h> -#include <linux/fs.h> -#include <linux/time.h> -#include <linux/jbd.h> -#include <linux/ext3_fs.h> -#include <linux/ext3_jbd.h> -#include <linux/slab.h> -#include <linux/init.h> #include <linux/blkdev.h> #include <linux/parser.h> -#include <linux/buffer_head.h> #include <linux/exportfs.h> -#include <linux/vfs.h> +#include <linux/statfs.h> #include <linux/random.h> #include <linux/mount.h> -#include <linux/namei.h> #include <linux/quotaops.h> #include <linux/seq_file.h> #include <linux/log2.h> @@ -40,13 +30,13 @@ #include <asm/uaccess.h> +#define CREATE_TRACE_POINTS + +#include "ext3.h" #include "xattr.h" #include "acl.h" #include "namei.h" -#define CREATE_TRACE_POINTS -#include <trace/events/ext3.h> - #ifdef CONFIG_EXT3_DEFAULTS_TO_ORDERED #define EXT3_MOUNT_DEFAULT_DATA_MODE EXT3_MOUNT_ORDERED_DATA #else diff --git a/fs/ext3/symlink.c b/fs/ext3/symlink.c index 7c4898207776..6b01c3eab1f3 100644 --- a/fs/ext3/symlink.c +++ b/fs/ext3/symlink.c @@ -17,10 +17,8 @@ * ext3 symlink handling code */ -#include <linux/fs.h> -#include <linux/jbd.h> -#include <linux/ext3_fs.h> #include <linux/namei.h> +#include "ext3.h" #include "xattr.h" static void * ext3_follow_link(struct dentry *dentry, struct nameidata *nd) diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c index d565759d82ee..d22ebb7a4f55 100644 --- a/fs/ext3/xattr.c +++ b/fs/ext3/xattr.c @@ -50,14 +50,9 @@ * by the buffer lock. */ -#include <linux/init.h> -#include <linux/fs.h> -#include <linux/slab.h> -#include <linux/ext3_jbd.h> -#include <linux/ext3_fs.h> +#include "ext3.h" #include <linux/mbcache.h> #include <linux/quotaops.h> -#include <linux/rwsem.h> #include "xattr.h" #include "acl.h" diff --git a/fs/ext3/xattr_security.c b/fs/ext3/xattr_security.c index ea26f2acab94..3387664ad70e 100644 --- a/fs/ext3/xattr_security.c +++ b/fs/ext3/xattr_security.c @@ -3,12 +3,8 @@ * Handler for storing security labels as extended attributes. */ -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/fs.h> -#include <linux/ext3_jbd.h> -#include <linux/ext3_fs.h> #include <linux/security.h> +#include "ext3.h" #include "xattr.h" static size_t diff --git a/fs/ext3/xattr_trusted.c b/fs/ext3/xattr_trusted.c index 2526a8829de8..d75727cc67fa 100644 --- a/fs/ext3/xattr_trusted.c +++ b/fs/ext3/xattr_trusted.c @@ -5,11 +5,7 @@ * Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org> */ -#include <linux/string.h> -#include <linux/capability.h> -#include <linux/fs.h> -#include <linux/ext3_jbd.h> -#include <linux/ext3_fs.h> +#include "ext3.h" #include "xattr.h" static size_t diff --git a/fs/ext3/xattr_user.c b/fs/ext3/xattr_user.c index b32e473a1e33..5612af3567e0 100644 --- a/fs/ext3/xattr_user.c +++ b/fs/ext3/xattr_user.c @@ -5,10 +5,7 @@ * Copyright (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org> */ -#include <linux/string.h> -#include <linux/fs.h> -#include <linux/ext3_jbd.h> -#include <linux/ext3_fs.h> +#include "ext3.h" #include "xattr.h" static size_t diff --git a/include/linux/ext3_fs_i.h b/include/linux/ext3_fs_i.h deleted file mode 100644 index f42c098aed8d..000000000000 --- a/include/linux/ext3_fs_i.h +++ /dev/null @@ -1,151 +0,0 @@ -/* - * linux/include/linux/ext3_fs_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 _LINUX_EXT3_FS_I -#define _LINUX_EXT3_FS_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 ext3_grpblk_t; - -/* data type for filesystem-wide blocks number */ -typedef unsigned long ext3_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 ext3_reserve_window_node { - struct rb_node rsv_node; - __u32 rsv_goal_size; - __u32 rsv_alloc_hit; - struct ext3_reserve_window rsv_window; -}; - -struct ext3_block_alloc_info { - /* information about reservation window */ - struct ext3_reserve_window_node rsv_window_node; - /* - * was i_next_alloc_block in ext3_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 - * is the *physical* companion to i_next_alloc_block. - * it 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; -}; - -#define rsv_start rsv_window._rsv_start -#define rsv_end rsv_window._rsv_end - -/* - * third extended file system inode data in memory - */ -struct ext3_inode_info { - __le32 i_data[15]; /* unconverted */ - __u32 i_flags; -#ifdef EXT3_FRAGMENTS - __u32 i_faddr; - __u8 i_frag_no; - __u8 i_frag_size; -#endif - ext3_fsblk_t i_file_acl; - __u32 i_dir_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. - */ - __u32 i_block_group; - unsigned long i_state_flags; /* Dynamic state flags for ext3 */ - - /* block reservation info */ - struct ext3_block_alloc_info *i_block_alloc_info; - - __u32 i_dir_start_lookup; -#ifdef CONFIG_EXT3_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 - - 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 ext3_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 ext3_get_block (growth) and ext3_truncate (shrinkth). - */ - loff_t i_disksize; - - /* on-disk additional length */ - __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 - * data tree are chopped off during truncate. We can't do that in - * ext3 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 truncate_mutex. - */ - struct mutex truncate_mutex; - - /* - * Transactions that contain inode's metadata needed to complete - * fsync and fdatasync, respectively. - */ - atomic_t i_sync_tid; - atomic_t i_datasync_tid; - - struct inode vfs_inode; -}; - -#endif /* _LINUX_EXT3_FS_I */ diff --git a/include/linux/ext3_fs_sb.h b/include/linux/ext3_fs_sb.h deleted file mode 100644 index 64365252f1b0..000000000000 --- a/include/linux/ext3_fs_sb.h +++ /dev/null @@ -1,91 +0,0 @@ -/* - * linux/include/linux/ext3_fs_sb.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_sb.h - * - * Copyright (C) 1991, 1992 Linus Torvalds - */ - -#ifndef _LINUX_EXT3_FS_SB -#define _LINUX_EXT3_FS_SB - -#ifdef __KERNEL__ -#include <linux/timer.h> -#include <linux/wait.h> -#include <linux/blockgroup_lock.h> -#include <linux/percpu_counter.h> -#endif -#include <linux/rbtree.h> - -/* - * third extended-fs super-block data in memory - */ -struct ext3_sb_info { - unsigned long s_frag_size; /* Size of a fragment in bytes */ - unsigned long s_frags_per_block;/* Number of fragments per block */ - unsigned long s_inodes_per_block;/* Number of inodes per block */ - unsigned long s_frags_per_group;/* Number of fragments in a group */ - unsigned long s_blocks_per_group;/* Number of blocks in a group */ - unsigned long s_inodes_per_group;/* Number of inodes in a group */ - unsigned long s_itb_per_group; /* Number of inode table blocks per group */ - unsigned long s_gdb_count; /* Number of group descriptor blocks */ - unsigned long s_desc_per_block; /* Number of group descriptors per block */ - unsigned long s_groups_count; /* Number of groups in the fs */ - unsigned long s_overhead_last; /* Last calculated overhead */ - unsigned long s_blocks_last; /* Last seen block count */ - struct buffer_head * s_sbh; /* Buffer containing the super block */ - struct ext3_super_block * s_es; /* Pointer to the super block in the buffer */ - struct buffer_head ** s_group_desc; - unsigned long s_mount_opt; - ext3_fsblk_t s_sb_block; - uid_t s_resuid; - gid_t s_resgid; - unsigned short s_mount_state; - unsigned short s_pad; - int s_addr_per_block_bits; - int s_desc_per_block_bits; - int s_inode_size; - int s_first_ino; - spinlock_t s_next_gen_lock; - u32 s_next_generation; - u32 s_hash_seed[4]; - int s_def_hash_version; - int s_hash_unsigned; /* 3 if hash should be signed, 0 if not */ - struct percpu_counter s_freeblocks_counter; - struct percpu_counter s_freeinodes_counter; - struct percpu_counter s_dirs_counter; - struct blockgroup_lock *s_blockgroup_lock; - - /* root of the per fs reservation window tree */ - spinlock_t s_rsv_window_lock; - struct rb_root s_rsv_window_root; - struct ext3_reserve_window_node s_rsv_window_head; - - /* Journaling */ - struct inode * s_journal_inode; - struct journal_s * s_journal; - struct list_head s_orphan; - struct mutex s_orphan_lock; - struct mutex s_resize_lock; - unsigned long s_commit_interval; - struct block_device *journal_bdev; -#ifdef CONFIG_QUOTA - char *s_qf_names[MAXQUOTAS]; /* Names of quota files with journalled quota */ - int s_jquota_fmt; /* Format of quota to use */ -#endif -}; - -static inline spinlock_t * -sb_bgl_lock(struct ext3_sb_info *sbi, unsigned int block_group) -{ - return bgl_lock_ptr(sbi->s_blockgroup_lock, block_group); -} - -#endif /* _LINUX_EXT3_FS_SB */ diff --git a/include/linux/ext3_jbd.h b/include/linux/ext3_jbd.h deleted file mode 100644 index d7b5ddca99c2..000000000000 --- a/include/linux/ext3_jbd.h +++ /dev/null @@ -1,229 +0,0 @@ -/* - * linux/include/linux/ext3_jbd.h - * - * Written by Stephen C. Tweedie <sct@redhat.com>, 1999 - * - * Copyright 1998--1999 Red Hat corp --- All Rights Reserved - * - * This file is part of the Linux kernel and is made available under - * the terms of the GNU General Public License, version 2, or at your - * option, any later version, incorporated herein by reference. - * - * Ext3-specific journaling extensions. - */ - -#ifndef _LINUX_EXT3_JBD_H -#define _LINUX_EXT3_JBD_H - -#include <linux/fs.h> -#include <linux/jbd.h> -#include <linux/ext3_fs.h> - -#define EXT3_JOURNAL(inode) (EXT3_SB((inode)->i_sb)->s_journal) - -/* Define the number of blocks we need to account to a transaction to - * modify one block of data. - * - * We may have to touch one inode, one bitmap buffer, up to three - * indirection blocks, the group and superblock summaries, and the data - * block to complete the transaction. */ - -#define EXT3_SINGLEDATA_TRANS_BLOCKS 8U - -/* Extended attribute operations touch at most two data buffers, - * two bitmap buffers, and two group summaries, in addition to the inode - * and the superblock, which are already accounted for. */ - -#define EXT3_XATTR_TRANS_BLOCKS 6U - -/* Define the minimum size for a transaction which modifies data. This - * needs to take into account the fact that we may end up modifying two - * quota files too (one for the group, one for the user quota). The - * superblock only gets updated once, of course, so don't bother - * counting that again for the quota updates. */ - -#define EXT3_DATA_TRANS_BLOCKS(sb) (EXT3_SINGLEDATA_TRANS_BLOCKS + \ - EXT3_XATTR_TRANS_BLOCKS - 2 + \ - EXT3_MAXQUOTAS_TRANS_BLOCKS(sb)) - -/* Delete operations potentially hit one directory's namespace plus an - * entire inode, plus arbitrary amounts of bitmap/indirection data. Be - * generous. We can grow the delete transaction later if necessary. */ - -#define EXT3_DELETE_TRANS_BLOCKS(sb) (EXT3_MAXQUOTAS_TRANS_BLOCKS(sb) + 64) - -/* Define an arbitrary limit for the amount of data we will anticipate - * writing to any given transaction. For unbounded transactions such as - * write(2) and truncate(2) we can write more than this, but we always - * start off at the maximum transaction size and grow the transaction - * optimistically as we go. */ - -#define EXT3_MAX_TRANS_DATA 64U - -/* We break up a large truncate or write transaction once the handle's - * buffer credits gets this low, we need either to extend the - * transaction or to start a new one. Reserve enough space here for - * inode, bitmap, superblock, group and indirection updates for at least - * one block, plus two quota updates. Quota allocations are not - * needed. */ - -#define EXT3_RESERVE_TRANS_BLOCKS 12U - -#define EXT3_INDEX_EXTRA_TRANS_BLOCKS 8 - -#ifdef CONFIG_QUOTA -/* Amount of blocks needed for quota update - we know that the structure was - * allocated so we need to update only inode+data */ -#define EXT3_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 2 : 0) -/* Amount of blocks needed for quota insert/delete - we do some block writes - * but inode, sb and group updates are done only once */ -#define EXT3_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_INIT_ALLOC*\ - (EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_INIT_REWRITE) : 0) -#define EXT3_QUOTA_DEL_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_DEL_ALLOC*\ - (EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_DEL_REWRITE) : 0) -#else -#define EXT3_QUOTA_TRANS_BLOCKS(sb) 0 -#define EXT3_QUOTA_INIT_BLOCKS(sb) 0 -#define EXT3_QUOTA_DEL_BLOCKS(sb) 0 -#endif -#define EXT3_MAXQUOTAS_TRANS_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_TRANS_BLOCKS(sb)) -#define EXT3_MAXQUOTAS_INIT_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_INIT_BLOCKS(sb)) -#define EXT3_MAXQUOTAS_DEL_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_DEL_BLOCKS(sb)) - -int -ext3_mark_iloc_dirty(handle_t *handle, - struct inode *inode, - struct ext3_iloc *iloc); - -/* - * On success, We end up with an outstanding reference count against - * iloc->bh. This _must_ be cleaned up later. - */ - -int ext3_reserve_inode_write(handle_t *handle, struct inode *inode, - struct ext3_iloc *iloc); - -int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode); - -/* - * Wrapper functions with which ext3 calls into JBD. The intent here is - * to allow these to be turned into appropriate stubs so ext3 can control - * ext2 filesystems, so ext2+ext3 systems only nee one fs. This work hasn't - * been done yet. - */ - -static inline void ext3_journal_release_buffer(handle_t *handle, - struct buffer_head *bh) -{ - journal_release_buffer(handle, bh); -} - -void ext3_journal_abort_handle(const char *caller, const char *err_fn, - struct buffer_head *bh, handle_t *handle, int err); - -int __ext3_journal_get_undo_access(const char *where, handle_t *handle, - struct buffer_head *bh); - -int __ext3_journal_get_write_access(const char *where, handle_t *handle, - struct buffer_head *bh); - -int __ext3_journal_forget(const char *where, handle_t *handle, - struct buffer_head *bh); - -int __ext3_journal_revoke(const char *where, handle_t *handle, - unsigned long blocknr, struct buffer_head *bh); - -int __ext3_journal_get_create_access(const char *where, - handle_t *handle, struct buffer_head *bh); - -int __ext3_journal_dirty_metadata(const char *where, - handle_t *handle, struct buffer_head *bh); - -#define ext3_journal_get_undo_access(handle, bh) \ - __ext3_journal_get_undo_access(__func__, (handle), (bh)) -#define ext3_journal_get_write_access(handle, bh) \ - __ext3_journal_get_write_access(__func__, (handle), (bh)) -#define ext3_journal_revoke(handle, blocknr, bh) \ - __ext3_journal_revoke(__func__, (handle), (blocknr), (bh)) -#define ext3_journal_get_create_access(handle, bh) \ - __ext3_journal_get_create_access(__func__, (handle), (bh)) -#define ext3_journal_dirty_metadata(handle, bh) \ - __ext3_journal_dirty_metadata(__func__, (handle), (bh)) -#define ext3_journal_forget(handle, bh) \ - __ext3_journal_forget(__func__, (handle), (bh)) - -int ext3_journal_dirty_data(handle_t *handle, struct buffer_head *bh); - -handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks); -int __ext3_journal_stop(const char *where, handle_t *handle); - -static inline handle_t *ext3_journal_start(struct inode *inode, int nblocks) -{ - return ext3_journal_start_sb(inode->i_sb, nblocks); -} - -#define ext3_journal_stop(handle) \ - __ext3_journal_stop(__func__, (handle)) - -static inline handle_t *ext3_journal_current_handle(void) -{ - return journal_current_handle(); -} - -static inline int ext3_journal_extend(handle_t *handle, int nblocks) -{ - return journal_extend(handle, nblocks); -} - -static inline int ext3_journal_restart(handle_t *handle, int nblocks) -{ - return journal_restart(handle, nblocks); -} - -static inline int ext3_journal_blocks_per_page(struct inode *inode) -{ - return journal_blocks_per_page(inode); -} - -static inline int ext3_journal_force_commit(journal_t *journal) -{ - return journal_force_commit(journal); -} - -/* super.c */ -int ext3_force_commit(struct super_block *sb); - -static inline int ext3_should_journal_data(struct inode *inode) -{ - if (!S_ISREG(inode->i_mode)) - return 1; - if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA) - return 1; - if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL) - return 1; - return 0; -} - -static inline int ext3_should_order_data(struct inode *inode) -{ - if (!S_ISREG(inode->i_mode)) - return 0; - if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL) - return 0; - if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA) - return 1; - return 0; -} - -static inline int ext3_should_writeback_data(struct inode *inode) -{ - if (!S_ISREG(inode->i_mode)) - return 0; - if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL) - return 0; - if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA) - return 1; - return 0; -} - -#endif /* _LINUX_EXT3_JBD_H */ |