diff options
Diffstat (limited to '')
| -rw-r--r-- | fs/ext4/super.c | 1114 |
1 files changed, 557 insertions, 557 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 8bfd56ef18ca..9e32a2a8d286 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1,5 +1,5 @@ /* - * linux/fs/ext3/super.c + * linux/fs/ext4/super.c * * Copyright (C) 1992, 1993, 1994, 1995 * Remy Card (card@masi.ibp.fr) @@ -21,8 +21,8 @@ #include <linux/fs.h> #include <linux/time.h> #include <linux/jbd.h> -#include <linux/ext3_fs.h> -#include <linux/ext3_jbd.h> +#include <linux/ext4_fs.h> +#include <linux/ext4_jbd.h> #include <linux/slab.h> #include <linux/init.h> #include <linux/blkdev.h> @@ -42,25 +42,25 @@ #include "acl.h" #include "namei.h" -static int ext3_load_journal(struct super_block *, struct ext3_super_block *, +static int ext4_load_journal(struct super_block *, struct ext4_super_block *, unsigned long journal_devnum); -static int ext3_create_journal(struct super_block *, struct ext3_super_block *, +static int ext4_create_journal(struct super_block *, struct ext4_super_block *, unsigned int); -static void ext3_commit_super (struct super_block * sb, - struct ext3_super_block * es, +static void ext4_commit_super (struct super_block * sb, + struct ext4_super_block * es, int sync); -static void ext3_mark_recovery_complete(struct super_block * sb, - struct ext3_super_block * es); -static void ext3_clear_journal_err(struct super_block * sb, - struct ext3_super_block * es); -static int ext3_sync_fs(struct super_block *sb, int wait); -static const char *ext3_decode_error(struct super_block * sb, int errno, +static void ext4_mark_recovery_complete(struct super_block * sb, + struct ext4_super_block * es); +static void ext4_clear_journal_err(struct super_block * sb, + struct ext4_super_block * es); +static int ext4_sync_fs(struct super_block *sb, int wait); +static const char *ext4_decode_error(struct super_block * sb, int errno, char nbuf[16]); -static int ext3_remount (struct super_block * sb, int * flags, char * data); -static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf); -static void ext3_unlockfs(struct super_block *sb); -static void ext3_write_super (struct super_block * sb); -static void ext3_write_super_lockfs(struct super_block *sb); +static int ext4_remount (struct super_block * sb, int * flags, char * data); +static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf); +static void ext4_unlockfs(struct super_block *sb); +static void ext4_write_super (struct super_block * sb); +static void ext4_write_super_lockfs(struct super_block *sb); /* * Wrappers for journal_start/end. @@ -70,7 +70,7 @@ static void ext3_write_super_lockfs(struct super_block *sb); * that sync() will call the filesystem's write_super callback if * appropriate. */ -handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks) +handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks) { journal_t *journal; @@ -80,9 +80,9 @@ handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks) /* Special case here: if the journal has aborted behind our * backs (eg. EIO in the commit thread), then we still need to * take the FS itself readonly cleanly. */ - journal = EXT3_SB(sb)->s_journal; + journal = EXT4_SB(sb)->s_journal; if (is_journal_aborted(journal)) { - ext3_abort(sb, __FUNCTION__, + ext4_abort(sb, __FUNCTION__, "Detected aborted journal"); return ERR_PTR(-EROFS); } @@ -96,7 +96,7 @@ handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks) * that sync() will call the filesystem's write_super callback if * appropriate. */ -int __ext3_journal_stop(const char *where, handle_t *handle) +int __ext4_journal_stop(const char *where, handle_t *handle) { struct super_block *sb; int err; @@ -109,15 +109,15 @@ int __ext3_journal_stop(const char *where, handle_t *handle) if (!err) err = rc; if (err) - __ext3_std_error(sb, where, err); + __ext4_std_error(sb, where, err); return err; } -void ext3_journal_abort_handle(const char *caller, const char *err_fn, +void ext4_journal_abort_handle(const char *caller, const char *err_fn, struct buffer_head *bh, handle_t *handle, int err) { char nbuf[16]; - const char *errstr = ext3_decode_error(NULL, err, nbuf); + const char *errstr = ext4_decode_error(NULL, err, nbuf); if (bh) BUFFER_TRACE(bh, "abort"); @@ -138,7 +138,7 @@ void ext3_journal_abort_handle(const char *caller, const char *err_fn, * inconsistencies detected or read IO failures. * * On ext2, we can store the error state of the filesystem in the - * superblock. That is not possible on ext3, because we may have other + * superblock. That is not possible on ext4, because we may have other * write ordering constraints on the superblock which prevent us from * writing it out straight away; and given that the journal is about to * be aborted, we can't rely on the current, or future, transactions to @@ -149,20 +149,20 @@ void ext3_journal_abort_handle(const char *caller, const char *err_fn, * that error until we've noted it down and cleared it. */ -static void ext3_handle_error(struct super_block *sb) +static void ext4_handle_error(struct super_block *sb) { - struct ext3_super_block *es = EXT3_SB(sb)->s_es; + struct ext4_super_block *es = EXT4_SB(sb)->s_es; - EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS; - es->s_state |= cpu_to_le16(EXT3_ERROR_FS); + EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; + es->s_state |= cpu_to_le16(EXT4_ERROR_FS); if (sb->s_flags & MS_RDONLY) return; if (!test_opt (sb, ERRORS_CONT)) { - journal_t *journal = EXT3_SB(sb)->s_journal; + journal_t *journal = EXT4_SB(sb)->s_journal; - EXT3_SB(sb)->s_mount_opt |= EXT3_MOUNT_ABORT; + EXT4_SB(sb)->s_mount_opt |= EXT4_MOUNT_ABORT; if (journal) journal_abort(journal, -EIO); } @@ -170,27 +170,27 @@ static void ext3_handle_error(struct super_block *sb) printk (KERN_CRIT "Remounting filesystem read-only\n"); sb->s_flags |= MS_RDONLY; } - ext3_commit_super(sb, es, 1); + ext4_commit_super(sb, es, 1); if (test_opt(sb, ERRORS_PANIC)) - panic("EXT3-fs (device %s): panic forced after error\n", + panic("EXT4-fs (device %s): panic forced after error\n", sb->s_id); } -void ext3_error (struct super_block * sb, const char * function, +void ext4_error (struct super_block * sb, const char * function, const char * fmt, ...) { va_list args; va_start(args, fmt); - printk(KERN_CRIT "EXT3-fs error (device %s): %s: ",sb->s_id, function); + printk(KERN_CRIT "EXT4-fs error (device %s): %s: ",sb->s_id, function); vprintk(fmt, args); printk("\n"); va_end(args); - ext3_handle_error(sb); + ext4_handle_error(sb); } -static const char *ext3_decode_error(struct super_block * sb, int errno, +static const char *ext4_decode_error(struct super_block * sb, int errno, char nbuf[16]) { char *errstr = NULL; @@ -203,7 +203,7 @@ static const char *ext3_decode_error(struct super_block * sb, int errno, errstr = "Out of memory"; break; case -EROFS: - if (!sb || EXT3_SB(sb)->s_journal->j_flags & JFS_ABORT) + if (!sb || EXT4_SB(sb)->s_journal->j_flags & JFS_ABORT) errstr = "Journal has aborted"; else errstr = "Readonly filesystem"; @@ -223,10 +223,10 @@ static const char *ext3_decode_error(struct super_block * sb, int errno, return errstr; } -/* __ext3_std_error decodes expected errors from journaling functions +/* __ext4_std_error decodes expected errors from journaling functions * automatically and invokes the appropriate error response. */ -void __ext3_std_error (struct super_block * sb, const char * function, +void __ext4_std_error (struct super_block * sb, const char * function, int errno) { char nbuf[16]; @@ -239,15 +239,15 @@ void __ext3_std_error (struct super_block * sb, const char * function, (sb->s_flags & MS_RDONLY)) return; - errstr = ext3_decode_error(sb, errno, nbuf); - printk (KERN_CRIT "EXT3-fs error (device %s) in %s: %s\n", + errstr = ext4_decode_error(sb, errno, nbuf); + printk (KERN_CRIT "EXT4-fs error (device %s) in %s: %s\n", sb->s_id, function, errstr); - ext3_handle_error(sb); + ext4_handle_error(sb); } /* - * ext3_abort is a much stronger failure handler than ext3_error. The + * ext4_abort is a much stronger failure handler than ext4_error. The * abort function may be used to deal with unrecoverable failures such * as journal IO errors or ENOMEM at a critical moment in log management. * @@ -256,60 +256,60 @@ void __ext3_std_error (struct super_block * sb, const char * function, * case we take the easy way out and panic immediately. */ -void ext3_abort (struct super_block * sb, const char * function, +void ext4_abort (struct super_block * sb, const char * function, const char * fmt, ...) { va_list args; - printk (KERN_CRIT "ext3_abort called.\n"); + printk (KERN_CRIT "ext4_abort called.\n"); va_start(args, fmt); - printk(KERN_CRIT "EXT3-fs error (device %s): %s: ",sb->s_id, function); + printk(KERN_CRIT "EXT4-fs error (device %s): %s: ",sb->s_id, function); vprintk(fmt, args); printk("\n"); va_end(args); if (test_opt(sb, ERRORS_PANIC)) - panic("EXT3-fs panic from previous error\n"); + panic("EXT4-fs panic from previous error\n"); if (sb->s_flags & MS_RDONLY) return; printk(KERN_CRIT "Remounting filesystem read-only\n"); - EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS; + EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; sb->s_flags |= MS_RDONLY; - EXT3_SB(sb)->s_mount_opt |= EXT3_MOUNT_ABORT; - journal_abort(EXT3_SB(sb)->s_journal, -EIO); + EXT4_SB(sb)->s_mount_opt |= EXT4_MOUNT_ABORT; + journal_abort(EXT4_SB(sb)->s_journal, -EIO); } -void ext3_warning (struct super_block * sb, const char * function, +void ext4_warning (struct super_block * sb, const char * function, const char * fmt, ...) { va_list args; va_start(args, fmt); - printk(KERN_WARNING "EXT3-fs warning (device %s): %s: ", + printk(KERN_WARNING "EXT4-fs warning (device %s): %s: ", sb->s_id, function); vprintk(fmt, args); printk("\n"); va_end(args); } -void ext3_update_dynamic_rev(struct super_block *sb) +void ext4_update_dynamic_rev(struct super_block *sb) { - struct ext3_super_block *es = EXT3_SB(sb)->s_es; + struct ext4_super_block *es = EXT4_SB(sb)->s_es; - if (le32_to_cpu(es->s_rev_level) > EXT3_GOOD_OLD_REV) + if (le32_to_cpu(es->s_rev_level) > EXT4_GOOD_OLD_REV) return; - ext3_warning(sb, __FUNCTION__, + ext4_warning(sb, __FUNCTION__, "updating to rev %d because of new feature flag, " "running e2fsck is recommended", - EXT3_DYNAMIC_REV); + EXT4_DYNAMIC_REV); - es->s_first_ino = cpu_to_le32(EXT3_GOOD_OLD_FIRST_INO); - es->s_inode_size = cpu_to_le16(EXT3_GOOD_OLD_INODE_SIZE); - es->s_rev_level = cpu_to_le32(EXT3_DYNAMIC_REV); + es->s_first_ino = cpu_to_le32(EXT4_GOOD_OLD_FIRST_INO); + es->s_inode_size = cpu_to_le16(EXT4_GOOD_OLD_INODE_SIZE); + es->s_rev_level = cpu_to_le32(EXT4_DYNAMIC_REV); /* leave es->s_feature_*compat flags alone */ /* es->s_uuid will be set by e2fsck if empty */ @@ -323,7 +323,7 @@ void ext3_update_dynamic_rev(struct super_block *sb) /* * Open the external journal device */ -static struct block_device *ext3_blkdev_get(dev_t dev) +static struct block_device *ext4_blkdev_get(dev_t dev) { struct block_device *bdev; char b[BDEVNAME_SIZE]; @@ -334,7 +334,7 @@ static struct block_device *ext3_blkdev_get(dev_t dev) return bdev; fail: - printk(KERN_ERR "EXT3: failed to open journal device %s: %ld\n", + printk(KERN_ERR "EXT4: failed to open journal device %s: %ld\n", __bdevname(dev, b), PTR_ERR(bdev)); return NULL; } @@ -342,20 +342,20 @@ fail: /* * Release the journal device */ -static int ext3_blkdev_put(struct block_device *bdev) +static int ext4_blkdev_put(struct block_device *bdev) { bd_release(bdev); return blkdev_put(bdev); } -static int ext3_blkdev_remove(struct ext3_sb_info *sbi) +static int ext4_blkdev_remove(struct ext4_sb_info *sbi) { struct block_device *bdev; int ret = -ENODEV; bdev = sbi->journal_bdev; if (bdev) { - ret = ext3_blkdev_put(bdev); + ret = ext4_blkdev_put(bdev); sbi->journal_bdev = NULL; } return ret; @@ -363,10 +363,10 @@ static int ext3_blkdev_remove(struct ext3_sb_info *sbi) static inline struct inode *orphan_list_entry(struct list_head *l) { - return &list_entry(l, struct ext3_inode_info, i_orphan)->vfs_inode; + return &list_entry(l, struct ext4_inode_info, i_orphan)->vfs_inode; } -static void dump_orphan_list(struct super_block *sb, struct ext3_sb_info *sbi) +static void dump_orphan_list(struct super_block *sb, struct ext4_sb_info *sbi) { struct list_head *l; @@ -384,20 +384,20 @@ static void dump_orphan_list(struct super_block *sb, struct ext3_sb_info *sbi) } } -static void ext3_put_super (struct super_block * sb) +static void ext4_put_super (struct super_block * sb) { - struct ext3_sb_info *sbi = EXT3_SB(sb); - struct ext3_super_block *es = sbi->s_es; + struct ext4_sb_info *sbi = EXT4_SB(sb); + struct ext4_super_block *es = sbi->s_es; int i; - ext3_xattr_put_super(sb); + ext4_xattr_put_super(sb); journal_destroy(sbi->s_journal); if (!(sb->s_flags & MS_RDONLY)) { - EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); + EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER); es->s_state = cpu_to_le16(sbi->s_mount_state); BUFFER_TRACE(sbi->s_sbh, "marking dirty"); mark_buffer_dirty(sbi->s_sbh); - ext3_commit_super(sb, es, 1); + ext4_commit_super(sb, es, 1); } for (i = 0; i < sbi->s_gdb_count; i++) @@ -429,47 +429,47 @@ static void ext3_put_super (struct super_block * sb) */ sync_blockdev(sbi->journal_bdev); invalidate_bdev(sbi->journal_bdev, 0); - ext3_blkdev_remove(sbi); + ext4_blkdev_remove(sbi); } sb->s_fs_info = NULL; kfree(sbi); return; } -static kmem_cache_t *ext3_inode_cachep; +static kmem_cache_t *ext4_inode_cachep; /* * Called inside transaction, so use GFP_NOFS */ -static struct inode *ext3_alloc_inode(struct super_block *sb) +static struct inode *ext4_alloc_inode(struct super_block *sb) { - struct ext3_inode_info *ei; + struct ext4_inode_info *ei; - ei = kmem_cache_alloc(ext3_inode_cachep, SLAB_NOFS); + ei = kmem_cache_alloc(ext4_inode_cachep, SLAB_NOFS); if (!ei) return NULL; -#ifdef CONFIG_EXT3_FS_POSIX_ACL - ei->i_acl = EXT3_ACL_NOT_CACHED; - ei->i_default_acl = EXT3_ACL_NOT_CACHED; +#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL + ei->i_acl = EXT4_ACL_NOT_CACHED; + ei->i_default_acl = EXT4_ACL_NOT_CACHED; #endif ei->i_block_alloc_info = NULL; ei->vfs_inode.i_version = 1; return &ei->vfs_inode; } -static void ext3_destroy_inode(struct inode *inode) +static void ext4_destroy_inode(struct inode *inode) { - kmem_cache_free(ext3_inode_cachep, EXT3_I(inode)); + kmem_cache_free(ext4_inode_cachep, EXT4_I(inode)); } static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags) { - struct ext3_inode_info *ei = (struct ext3_inode_info *) foo; + struct ext4_inode_info *ei = (struct ext4_inode_info *) foo; if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) == SLAB_CTOR_CONSTRUCTOR) { INIT_LIST_HEAD(&ei->i_orphan); -#ifdef CONFIG_EXT3_FS_XATTR +#ifdef CONFIG_EXT4DEV_FS_XATTR init_rwsem(&ei->xattr_sem); #endif mutex_init(&ei->truncate_mutex); @@ -479,46 +479,46 @@ static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags) static int init_inodecache(void) { - ext3_inode_cachep = kmem_cache_create("ext3_inode_cache", - sizeof(struct ext3_inode_info), + ext4_inode_cachep = kmem_cache_create("ext4_inode_cache", + sizeof(struct ext4_inode_info), 0, (SLAB_RECLAIM_ACCOUNT| SLAB_MEM_SPREAD), init_once, NULL); - if (ext3_inode_cachep == NULL) + if (ext4_inode_cachep == NULL) return -ENOMEM; return 0; } static void destroy_inodecache(void) { - kmem_cache_destroy(ext3_inode_cachep); + kmem_cache_destroy(ext4_inode_cachep); } -static void ext3_clear_inode(struct inode *inode) +static void ext4_clear_inode(struct inode *inode) { - struct ext3_block_alloc_info *rsv = EXT3_I(inode)->i_block_alloc_info; -#ifdef CONFIG_EXT3_FS_POSIX_ACL - if (EXT3_I(inode)->i_acl && - EXT3_I(inode)->i_acl != EXT3_ACL_NOT_CACHED) { - posix_acl_release(EXT3_I(inode)->i_acl); - EXT3_I(inode)->i_acl = EXT3_ACL_NOT_CACHED; - } - if (EXT3_I(inode)->i_default_acl && - EXT3_I(inode)->i_default_acl != EXT3_ACL_NOT_CACHED) { - posix_acl_release(EXT3_I(inode)->i_default_acl); - EXT3_I(inode)->i_default_acl = EXT3_ACL_NOT_CACHED; + struct ext4_block_alloc_info *rsv = EXT4_I(inode)->i_block_alloc_info; +#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL + if (EXT4_I(inode)->i_acl && + EXT4_I(inode)->i_acl != EXT4_ACL_NOT_CACHED) { + posix_acl_release(EXT4_I(inode)->i_acl); + EXT4_I(inode)->i_acl = EXT4_ACL_NOT_CACHED; + } + if (EXT4_I(inode)->i_default_acl && + EXT4_I(inode)->i_default_acl != EXT4_ACL_NOT_CACHED) { + posix_acl_release(EXT4_I(inode)->i_default_acl); + EXT4_I(inode)->i_default_acl = EXT4_ACL_NOT_CACHED; } #endif - ext3_discard_reservation(inode); - EXT3_I(inode)->i_block_alloc_info = NULL; + ext4_discard_reservation(inode); + EXT4_I(inode)->i_block_alloc_info = NULL; if (unlikely(rsv)) kfree(rsv); } -static inline void ext3_show_quota_options(struct seq_file *seq, struct super_block *sb) +static inline void ext4_show_quota_options(struct seq_file *seq, struct super_block *sb) { #if defined(CONFIG_QUOTA) - struct ext3_sb_info *sbi = EXT3_SB(sb); + struct ext4_sb_info *sbi = EXT4_SB(sb); if (sbi->s_jquota_fmt) seq_printf(seq, ",jqfmt=%s", @@ -530,32 +530,32 @@ static inline void ext3_show_quota_options(struct seq_file *seq, struct super_bl if (sbi->s_qf_names[GRPQUOTA]) seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]); - if (sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA) + if (sbi->s_mount_opt & EXT4_MOUNT_USRQUOTA) seq_puts(seq, ",usrquota"); - if (sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA) + if (sbi->s_mount_opt & EXT4_MOUNT_GRPQUOTA) seq_puts(seq, ",grpquota"); #endif } -static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs) +static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs) { struct super_block *sb = vfs->mnt_sb; - if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA) + if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) seq_puts(seq, ",data=journal"); - else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA) + else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA) seq_puts(seq, ",data=ordered"); - else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA) + else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA) seq_puts(seq, ",data=writeback"); - ext3_show_quota_options(seq, sb); + ext4_show_quota_options(seq, sb); return 0; } -static struct dentry *ext3_get_dentry(struct super_block *sb, void *vobjp) +static struct dentry *ext4_get_dentry(struct super_block *sb, void *vobjp) { __u32 *objp = vobjp; unsigned long ino = objp[0]; @@ -563,14 +563,14 @@ static struct dentry *ext3_get_dentry(struct super_block *sb, void *vobjp) struct inode *inode; struct dentry *result; - if (ino < EXT3_FIRST_INO(sb) && ino != EXT3_ROOT_INO) + if (ino < EXT4_FIRST_INO(sb) && ino != EXT4_ROOT_INO) return ERR_PTR(-ESTALE); - if (ino > le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count)) + if (ino > le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count)) return ERR_PTR(-ESTALE); /* iget isn't really right if the inode is currently unallocated!! * - * ext3_read_inode will return a bad_inode if the inode had been + * ext4_read_inode will return a bad_inode if the inode had been * deleted, so we should be safe. * * Currently we don't know the generation for parent directory, so @@ -599,37 +599,37 @@ static struct dentry *ext3_get_dentry(struct super_block *sb, void *vobjp) #define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group") #define QTYPE2MOPT(on, t) ((t)==USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA)) -static int ext3_dquot_initialize(struct inode *inode, int type); -static int ext3_dquot_drop(struct inode *inode); -static int ext3_write_dquot(struct dquot *dquot); -static int ext3_acquire_dquot(struct dquot *dquot); -static int ext3_release_dquot(struct dquot *dquot); -static int ext3_mark_dquot_dirty(struct dquot *dquot); -static int ext3_write_info(struct super_block *sb, int type); -static int ext3_quota_on(struct super_block *sb, int type, int format_id, char *path); -static int ext3_quota_on_mount(struct super_block *sb, int type); -static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data, +static int ext4_dquot_initialize(struct inode *inode, int type); +static int ext4_dquot_drop(struct inode *inode); +static int ext4_write_dquot(struct dquot *dquot); +static int ext4_acquire_dquot(struct dquot *dquot); +static int ext4_release_dquot(struct dquot *dquot); +static int ext4_mark_dquot_dirty(struct dquot *dquot); +static int ext4_write_info(struct super_block *sb, int type); +static int ext4_quota_on(struct super_block *sb, int type, int format_id, char *path); +static int ext4_quota_on_mount(struct super_block *sb, int type); +static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data, size_t len, loff_t off); -static ssize_t ext3_quota_write(struct super_block *sb, int type, +static ssize_t ext4_quota_write(struct super_block *sb, int type, const char *data, size_t len, loff_t off); -static struct dquot_operations ext3_quota_operations = { - .initialize = ext3_dquot_initialize, - .drop = ext3_dquot_drop, +static struct dquot_operations ext4_quota_operations = { + .initialize = ext4_dquot_initialize, + .drop = ext4_dquot_drop, .alloc_space = dquot_alloc_space, .alloc_inode = dquot_alloc_inode, .free_space = dquot_free_space, .free_inode = dquot_free_inode, .transfer = dquot_transfer, - .write_dquot = ext3_write_dquot, - .acquire_dquot = ext3_acquire_dquot, - .release_dquot = ext3_release_dquot, - .mark_dirty = ext3_mark_dquot_dirty, - .write_info = ext3_write_info + .write_dquot = ext4_write_dquot, + .acquire_dquot = ext4_acquire_dquot, + .release_dquot = ext4_release_dquot, + .mark_dirty = ext4_mark_dquot_dirty, + .write_info = ext4_write_info }; -static struct quotactl_ops ext3_qctl_operations = { - .quota_on = ext3_quota_on, +static struct quotactl_ops ext4_qctl_operations = { + .quota_on = ext4_quota_on, .quota_off = vfs_quota_off, .quota_sync = vfs_quota_sync, .get_info = vfs_get_dqinfo, @@ -639,31 +639,31 @@ static struct quotactl_ops ext3_qctl_operations = { }; #endif -static struct super_operations ext3_sops = { - .alloc_inode = ext3_alloc_inode, - .destroy_inode = ext3_destroy_inode, - .read_inode = ext3_read_inode, - .write_inode = ext3_write_inode, - .dirty_inode = ext3_dirty_inode, - .delete_inode = ext3_delete_inode, - .put_super = ext3_put_super, - .write_super = ext3_write_super, - .sync_fs = ext3_sync_fs, - .write_super_lockfs = ext3_write_super_lockfs, - .unlockfs = ext3_unlockfs, - .statfs = ext3_statfs, - .remount_fs = ext3_remount, - .clear_inode = ext3_clear_inode, - .show_options = ext3_show_options, +static struct super_operations ext4_sops = { + .alloc_inode = ext4_alloc_inode, + .destroy_inode = ext4_destroy_inode, + .read_inode = ext4_read_inode, + .write_inode = ext4_write_inode, + .dirty_inode = ext4_dirty_inode, + .delete_inode = ext4_delete_inode, + .put_super = ext4_put_super, + .write_super = ext4_write_super, + .sync_fs = ext4_sync_fs, + .write_super_lockfs = ext4_write_super_lockfs, + .unlockfs = ext4_unlockfs, + .statfs = ext4_statfs, + .remount_fs = ext4_remount, + .clear_inode = ext4_clear_inode, + .show_options = ext4_show_options, #ifdef CONFIG_QUOTA - .quota_read = ext3_quota_read, - .quota_write = ext3_quota_write, + .quota_read = ext4_quota_read, + .quota_write = ext4_quota_write, #endif }; -static struct export_operations ext3_export_ops = { - .get_parent = ext3_get_parent, - .get_dentry = ext3_get_dentry, +static struct export_operations ext4_export_ops = { + .get_parent = ext4_get_parent, + .get_dentry = ext4_get_dentry, }; enum { @@ -731,18 +731,18 @@ static match_table_t tokens = { {Opt_resize, "resize"}, }; -static ext3_fsblk_t get_sb_block(void **data) +static ext4_fsblk_t get_sb_block(void **data) { - ext3_fsblk_t sb_block; + ext4_fsblk_t sb_block; char *options = (char *) *data; if (!options || strncmp(options, "sb=", 3) != 0) return 1; /* Default location */ options += 3; - /*todo: use simple_strtoll with >32bit ext3 */ + /*todo: use simple_strtoll with >32bit ext4 */ sb_block = simple_strtoul(options, &options, 0); if (*options && *options != ',') { - printk("EXT3-fs: Invalid sb specification: %s\n", + printk("EXT4-fs: Invalid sb specification: %s\n", (char *) *data); return 1; } @@ -754,9 +754,9 @@ static ext3_fsblk_t get_sb_block(void **data) static int parse_options (char *options, struct super_block *sb, unsigned int *inum, unsigned long *journal_devnum, - ext3_fsblk_t *n_blocks_count, int is_remount) + ext4_fsblk_t *n_blocks_count, int is_remount) { - struct ext3_sb_info *sbi = EXT3_SB(sb); + struct ext4_sb_info *sbi = EXT4_SB(sb); char * p; substring_t args[MAX_OPT_ARGS]; int data_opt = 0; @@ -832,7 +832,7 @@ static int parse_options (char *options, struct super_block *sb, case Opt_orlov: clear_opt (sbi->s_mount_opt, OLDALLOC); break; -#ifdef CONFIG_EXT3_FS_XATTR +#ifdef CONFIG_EXT4DEV_FS_XATTR case Opt_user_xattr: set_opt (sbi->s_mount_opt, XATTR_USER); break; @@ -842,10 +842,10 @@ static int parse_options (char *options, struct super_block *sb, #else case Opt_user_xattr: case Opt_nouser_xattr: - printk("EXT3 (no)user_xattr options not supported\n"); + printk("EXT4 (no)user_xattr options not supported\n"); break; #endif -#ifdef CONFIG_EXT3_FS_POSIX_ACL +#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL case Opt_acl: set_opt(sbi->s_mount_opt, POSIX_ACL); break; @@ -855,7 +855,7 @@ static int parse_options (char *options, struct super_block *sb, #else case Opt_acl: case Opt_noacl: - printk("EXT3 (no)acl options not supported\n"); + printk("EXT4 (no)acl options not supported\n"); break; #endif case Opt_reservation: @@ -871,7 +871,7 @@ static int parse_options (char *options, struct super_block *sb, user to specify an existing inode to be the journal file. */ if (is_remount) { - printk(KERN_ERR "EXT3-fs: cannot specify " + printk(KERN_ERR "EXT4-fs: cannot specify " "journal on remount\n"); return 0; } @@ -879,7 +879,7 @@ static int parse_options (char *options, struct super_block *sb, break; case Opt_journal_inum: if (is_remount) { - printk(KERN_ERR "EXT3-fs: cannot specify " + printk(KERN_ERR "EXT4-fs: cannot specify " "journal on remount\n"); return 0; } @@ -889,7 +889,7 @@ static int parse_options (char *options, struct super_block *sb, break; case Opt_journal_dev: if (is_remount) { - printk(KERN_ERR "EXT3-fs: cannot specify " + printk(KERN_ERR "EXT4-fs: cannot specify " "journal on remount\n"); return 0; } @@ -910,24 +910,24 @@ static int parse_options (char *options, struct super_block *sb, sbi->s_commit_interval = HZ * option; break; case Opt_data_journal: - data_opt = EXT3_MOUNT_JOURNAL_DATA; + data_opt = EXT4_MOUNT_JOURNAL_DATA; goto datacheck; case Opt_data_ordered: - data_opt = EXT3_MOUNT_ORDERED_DATA; + data_opt = EXT4_MOUNT_ORDERED_DATA; goto datacheck; case Opt_data_writeback: - data_opt = EXT3_MOUNT_WRITEBACK_DATA; + data_opt = EXT4_MOUNT_WRITEBACK_DATA; datacheck: if (is_remount) { - if ((sbi->s_mount_opt & EXT3_MOUNT_DATA_FLAGS) + if ((sbi->s_mount_opt & EXT4_MOUNT_DATA_FLAGS) != data_opt) { printk(KERN_ERR - "EXT3-fs: cannot change data " + "EXT4-fs: cannot change data " "mode on remount\n"); return 0; } } else { - sbi->s_mount_opt &= ~EXT3_MOUNT_DATA_FLAGS; + sbi->s_mount_opt &= ~EXT4_MOUNT_DATA_FLAGS; sbi->s_mount_opt |= data_opt; } break; @@ -940,21 +940,21 @@ static int parse_options (char *options, struct super_block *sb, set_qf_name: if (sb_any_quota_enabled(sb)) { printk(KERN_ERR - "EXT3-fs: Cannot change journalled " + "EXT4-fs: Cannot change journalled " "quota options when quota turned on.\n"); return 0; } qname = match_strdup(&args[0]); if (!qname) { printk(KERN_ERR - "EXT3-fs: not enough memory for " + "EXT4-fs: not enough memory for " "storing quotafile name.\n"); return 0; } if (sbi->s_qf_names[qtype] && strcmp(sbi->s_qf_names[qtype], qname)) { printk(KERN_ERR - "EXT3-fs: %s quota file already " + "EXT4-fs: %s quota file already " "specified.\n", QTYPE2NAME(qtype)); kfree(qname); return 0; @@ -962,7 +962,7 @@ set_qf_name: sbi->s_qf_names[qtype] = qname; if (strchr(sbi->s_qf_names[qtype], '/')) { printk(KERN_ERR - "EXT3-fs: quotafile must be on " + "EXT4-fs: quotafile must be on " "filesystem root.\n"); kfree(sbi->s_qf_names[qtype]); sbi->s_qf_names[qtype] = NULL; @@ -977,7 +977,7 @@ set_qf_name: qtype = GRPQUOTA; clear_qf_name: if (sb_any_quota_enabled(sb)) { - printk(KERN_ERR "EXT3-fs: Cannot change " + printk(KERN_ERR "EXT4-fs: Cannot change " "journalled quota options when " "quota turned on.\n"); return 0; @@ -1005,7 +1005,7 @@ clear_qf_name: break; case Opt_noquota: if (sb_any_quota_enabled(sb)) { - printk(KERN_ERR "EXT3-fs: Cannot change quota " + printk(KERN_ERR "EXT4-fs: Cannot change quota " "options when quota turned on.\n"); return 0; } @@ -1024,7 +1024,7 @@ clear_qf_name: case Opt_jqfmt_vfsold: case Opt_jqfmt_vfsv0: printk(KERN_ERR - "EXT3-fs: journalled quota options not " + "EXT4-fs: journalled quota options not " "supported.\n"); break; case Opt_noquota: @@ -1045,7 +1045,7 @@ clear_qf_name: break; case Opt_resize: if (!is_remount) { - printk("EXT3-fs: resize option only available " + printk("EXT4-fs: resize option only available " "for remount\n"); return 0; } @@ -1061,38 +1061,38 @@ clear_qf_name: break; default: printk (KERN_ERR - "EXT3-fs: Unrecognized mount option \"%s\" " + "EXT4-fs: Unrecognized mount option \"%s\" " "or missing value\n", p); return 0; } } #ifdef CONFIG_QUOTA if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) { - if ((sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA) && + if ((sbi->s_mount_opt & EXT4_MOUNT_USRQUOTA) && sbi->s_qf_names[USRQUOTA]) clear_opt(sbi->s_mount_opt, USRQUOTA); - if ((sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA) && + if ((sbi->s_mount_opt & EXT4_MOUNT_GRPQUOTA) && sbi->s_qf_names[GRPQUOTA]) clear_opt(sbi->s_mount_opt, GRPQUOTA); if ((sbi->s_qf_names[USRQUOTA] && - (sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA)) || + (sbi->s_mount_opt & EXT4_MOUNT_GRPQUOTA)) || (sbi->s_qf_names[GRPQUOTA] && - (sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA))) { - printk(KERN_ERR "EXT3-fs: old and new quota " + (sbi->s_mount_opt & EXT4_MOUNT_USRQUOTA))) { + printk(KERN_ERR "EXT4-fs: old and new quota " "format mixing.\n"); return 0; } if (!sbi->s_jquota_fmt) { - printk(KERN_ERR "EXT3-fs: journalled quota format " + printk(KERN_ERR "EXT4-fs: journalled quota format " "not specified.\n"); return 0; } } else { if (sbi->s_jquota_fmt) { - printk(KERN_ERR "EXT3-fs: journalled quota format " + printk(KERN_ERR "EXT4-fs: journalled quota format " "specified with no journalling " "enabled.\n"); return 0; @@ -1102,68 +1102,68 @@ clear_qf_name: return 1; } -static int ext3_setup_super(struct super_block *sb, struct ext3_super_block *es, +static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es, int read_only) { - struct ext3_sb_info *sbi = EXT3_SB(sb); + struct ext4_sb_info *sbi = EXT4_SB(sb); int res = 0; - if (le32_to_cpu(es->s_rev_level) > EXT3_MAX_SUPP_REV) { - printk (KERN_ERR "EXT3-fs warning: revision level too high, " + if (le32_to_cpu(es->s_rev_level) > EXT4_MAX_SUPP_REV) { + printk (KERN_ERR "EXT4-fs warning: revision level too high, " "forcing read-only mode\n"); res = MS_RDONLY; } if (read_only) return res; - if (!(sbi->s_mount_state & EXT3_VALID_FS)) - printk (KERN_WARNING "EXT3-fs warning: mounting unchecked fs, " + if (!(sbi->s_mount_state & EXT4_VALID_FS)) + printk (KERN_WARNING "EXT4-fs warning: mounting unchecked fs, " "running e2fsck is recommended\n"); - else if ((sbi->s_mount_state & EXT3_ERROR_FS)) + else if ((sbi->s_mount_state & EXT4_ERROR_FS)) printk (KERN_WARNING - "EXT3-fs warning: mounting fs with errors, " + "EXT4-fs warning: mounting fs with errors, " "running e2fsck is recommended\n"); else if ((__s16) le16_to_cpu(es->s_max_mnt_count) >= 0 && le16_to_cpu(es->s_mnt_count) >= (unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count)) printk (KERN_WARNING - "EXT3-fs warning: maximal mount count reached, " + "EXT4-fs warning: maximal mount count reached, " "running e2fsck is recommended\n"); else if (le32_to_cpu(es->s_checkinterval) && (le32_to_cpu(es->s_lastcheck) + le32_to_cpu(es->s_checkinterval) <= get_seconds())) printk (KERN_WARNING - "EXT3-fs warning: checktime reached, " + "EXT4-fs warning: checktime reached, " "running e2fsck is recommended\n"); #if 0 /* @@@ We _will_ want to clear the valid bit if we find inconsistencies, to force a fsck at reboot. But for a plain journaled filesystem we can keep it set as valid forever! :) */ - es->s_state = cpu_to_le16(le16_to_cpu(es->s_state) & ~EXT3_VALID_FS); + es->s_state = cpu_to_le16(le16_to_cpu(es->s_state) & ~EXT4_VALID_FS); #endif if (!(__s16) le16_to_cpu(es->s_max_mnt_count)) - es->s_max_mnt_count = cpu_to_le16(EXT3_DFL_MAX_MNT_COUNT); + es->s_max_mnt_count = cpu_to_le16(EXT4_DFL_MAX_MNT_COUNT); es->s_mnt_count=cpu_to_le16(le16_to_cpu(es->s_mnt_count) + 1); es->s_mtime = cpu_to_le32(get_seconds()); - ext3_update_dynamic_rev(sb); - EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); + ext4_update_dynamic_rev(sb); + EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER); - ext3_commit_super(sb, es, 1); + ext4_commit_super(sb, es, 1); if (test_opt(sb, DEBUG)) - printk(KERN_INFO "[EXT3 FS bs=%lu, gc=%lu, " + printk(KERN_INFO "[EXT4 FS bs=%lu, gc=%lu, " "bpg=%lu, ipg=%lu, mo=%04lx]\n", sb->s_blocksize, sbi->s_groups_count, - EXT3_BLOCKS_PER_GROUP(sb), - EXT3_INODES_PER_GROUP(sb), + EXT4_BLOCKS_PER_GROUP(sb), + EXT4_INODES_PER_GROUP(sb), sbi->s_mount_opt); - printk(KERN_INFO "EXT3 FS on %s, ", sb->s_id); - if (EXT3_SB(sb)->s_journal->j_inode == NULL) { + printk(KERN_INFO "EXT4 FS on %s, ", sb->s_id); + if (EXT4_SB(sb)->s_journal->j_inode == NULL) { char b[BDEVNAME_SIZE]; printk("external journal on %s\n", - bdevname(EXT3_SB(sb)->s_journal->j_dev, b)); + bdevname(EXT4_SB(sb)->s_journal->j_dev, b)); } else { printk("internal journal\n"); } @@ -1171,16 +1171,16 @@ static int ext3_setup_super(struct super_block *sb, struct ext3_super_block *es, } /* Called at mount-time, super-block is locked */ -static int ext3_check_descriptors (struct super_block * sb) +static int ext4_check_descriptors (struct super_block * sb) { - struct ext3_sb_info *sbi = EXT3_SB(sb); - ext3_fsblk_t first_block = le32_to_cpu(sbi->s_es->s_first_data_block); - ext3_fsblk_t last_block; - struct ext3_group_desc * gdp = NULL; + struct ext4_sb_info *sbi = EXT4_SB(sb); + ext4_fsblk_t first_block = le32_to_cpu(sbi->s_es->s_first_data_block); + ext4_fsblk_t last_block; + struct ext4_group_desc * gdp = NULL; int desc_block = 0; int i; - ext3_debug ("Checking group descriptors"); + ext4_debug ("Checking group descriptors"); for (i = 0; i < sbi->s_groups_count; i++) { @@ -1188,15 +1188,15 @@ static int ext3_check_descriptors (struct super_block * sb) last_block = le32_to_cpu(sbi->s_es->s_blocks_count) - 1; else last_block = first_block + - (EXT3_BLOCKS_PER_GROUP(sb) - 1); + (EXT4_BLOCKS_PER_GROUP(sb) - 1); - if ((i % EXT3_DESC_PER_BLOCK(sb)) == 0) - gdp = (struct ext3_group_desc *) + if ((i % EXT4_DESC_PER_BLOCK(sb)) == 0) + gdp = (struct ext4_group_desc *) sbi->s_group_desc[desc_block++]->b_data; if (le32_to_cpu(gdp->bg_block_bitmap) < first_block || le32_to_cpu(gdp->bg_block_bitmap) > last_block) { - ext3_error (sb, "ext3_check_descriptors", + ext4_error (sb, "ext4_check_descriptors", "Block bitmap for group %d" " not in group (block %lu)!", i, (unsigned long) @@ -1206,7 +1206,7 @@ static int ext3_check_descriptors (struct super_block * sb) if (le32_to_cpu(gdp->bg_inode_bitmap) < first_block || le32_to_cpu(gdp->bg_inode_bitmap) > last_block) { - ext3_error (sb, "ext3_check_descriptors", + ext4_error (sb, "ext4_check_descriptors", "Inode bitmap for group %d" " not in group (block %lu)!", i, (unsigned long) @@ -1217,24 +1217,24 @@ static int ext3_check_descriptors (struct super_block * sb) le32_to_cpu(gdp->bg_inode_table) + sbi->s_itb_per_group > last_block) { - ext3_error (sb, "ext3_check_descriptors", + ext4_error (sb, "ext4_check_descriptors", "Inode table for group %d" " not in group (block %lu)!", i, (unsigned long) le32_to_cpu(gdp->bg_inode_table)); return 0; } - first_block += EXT3_BLOCKS_PER_GROUP(sb); + first_block += EXT4_BLOCKS_PER_GROUP(sb); gdp++; } - sbi->s_es->s_free_blocks_count=cpu_to_le32(ext3_count_free_blocks(sb)); - sbi->s_es->s_free_inodes_count=cpu_to_le32(ext3_count_free_inodes(sb)); + sbi->s_es->s_free_blocks_count=cpu_to_le32(ext4_count_free_blocks(sb)); + sbi->s_es->s_free_inodes_count=cpu_to_le32(ext4_count_free_inodes(sb)); return 1; } -/* ext3_orphan_cleanup() walks a singly-linked list of inodes (starting at +/* ext4_orphan_cleanup() walks a singly-linked list of inodes (starting at * the superblock) which were deleted from all directories, but held open by * a process at the time of a crash. We walk the list and try to delete these * inodes at recovery time (only with a read-write filesystem). @@ -1247,12 +1247,12 @@ static int ext3_check_descriptors (struct super_block * sb) * We only do an iget() and an iput() on each inode, which is very safe if we * accidentally point at an in-use or already deleted inode. The worst that * can happen in this case is that we get a "bit already cleared" message from - * ext3_free_inode(). The only reason we would point at a wrong inode is if + * ext4_free_inode(). The only reason we would point at a wrong inode is if * e2fsck was run on this filesystem, and it must have already done the orphan * inode cleanup for us, so we can safely abort without any further action. */ -static void ext3_orphan_cleanup (struct super_block * sb, - struct ext3_super_block * es) +static void ext4_orphan_cleanup (struct super_block * sb, + struct ext4_super_block * es) { unsigned int s_flags = sb->s_flags; int nr_orphans = 0, nr_truncates = 0; @@ -1264,7 +1264,7 @@ static void ext3_orphan_cleanup (struct super_block * sb, return; } - if (EXT3_SB(sb)->s_mount_state & EXT3_ERROR_FS) { + if (EXT4_SB(sb)->s_mount_state & EXT4_ERROR_FS) { if (es->s_last_orphan) jbd_debug(1, "Errors on filesystem, " "clearing orphan list.\n"); @@ -1274,7 +1274,7 @@ static void ext3_orphan_cleanup (struct super_block * sb, } if (s_flags & MS_RDONLY) { - printk(KERN_INFO "EXT3-fs: %s: orphan cleanup on readonly fs\n", + printk(KERN_INFO "EXT4-fs: %s: orphan cleanup on readonly fs\n", sb->s_id); sb->s_flags &= ~MS_RDONLY; } @@ -1283,11 +1283,11 @@ static void ext3_orphan_cleanup (struct super_block * sb, sb->s_flags |= MS_ACTIVE; /* Turn on quotas so that they are updated correctly */ for (i = 0; i < MAXQUOTAS; i++) { - if (EXT3_SB(sb)->s_qf_names[i]) { - int ret = ext3_quota_on_mount(sb, i); + if (EXT4_SB(sb)->s_qf_names[i]) { + int ret = ext4_quota_on_mount(sb, i); if (ret < 0) printk(KERN_ERR - "EXT3-fs: Cannot turn on journalled " + "EXT4-fs: Cannot turn on journalled " "quota: error %d\n", ret); } } @@ -1297,12 +1297,12 @@ static void ext3_orphan_cleanup (struct super_block * sb, struct inode *inode; if (!(inode = - ext3_orphan_get(sb, le32_to_cpu(es->s_last_orphan)))) { + ext4_orphan_get(sb, le32_to_cpu(es->s_last_orphan)))) { es->s_last_orphan = 0; break; } - list_add(&EXT3_I(inode)->i_orphan, &EXT3_SB(sb)->s_orphan); + list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan); DQUOT_INIT(inode); if (inode->i_nlink) { printk(KERN_DEBUG @@ -1310,7 +1310,7 @@ static void ext3_orphan_cleanup (struct super_block * sb, __FUNCTION__, inode->i_ino, inode->i_size); jbd_debug(2, "truncating inode %lu to %Ld bytes\n", inode->i_ino, inode->i_size); - ext3_truncate(inode); + ext4_truncate(inode); nr_truncates++; } else { printk(KERN_DEBUG @@ -1326,10 +1326,10 @@ static void ext3_orphan_cleanup (struct super_block * sb, #define PLURAL(x) (x), ((x)==1) ? "" : "s" if (nr_orphans) - printk(KERN_INFO "EXT3-fs: %s: %d orphan inode%s deleted\n", + printk(KERN_INFO "EXT4-fs: %s: %d orphan inode%s deleted\n", sb->s_id, PLURAL(nr_orphans)); if (nr_truncates) - printk(KERN_INFO "EXT3-fs: %s: %d truncate%s cleaned up\n", + printk(KERN_INFO "EXT4-fs: %s: %d truncate%s cleaned up\n", sb->s_id, PLURAL(nr_truncates)); #ifdef CONFIG_QUOTA /* Turn quotas off */ @@ -1348,9 +1348,9 @@ static void ext3_orphan_cleanup (struct super_block * sb, * block limit, and also a limit of (2^32 - 1) 512-byte sectors in i_blocks. * We need to be 1 filesystem block less than the 2^32 sector limit. */ -static loff_t ext3_max_size(int bits) +static loff_t ext4_max_size(int bits) { - loff_t res = EXT3_NDIR_BLOCKS; + loff_t res = EXT4_NDIR_BLOCKS; /* This constant is calculated to be the largest file size for a * dense, 4k-blocksize file such that the total number of * sectors in the file, including data and all indirect blocks, @@ -1366,34 +1366,34 @@ static loff_t ext3_max_size(int bits) return res; } -static ext3_fsblk_t descriptor_loc(struct super_block *sb, - ext3_fsblk_t logic_sb_block, +static ext4_fsblk_t descriptor_loc(struct super_block *sb, + ext4_fsblk_t logic_sb_block, int nr) { - struct ext3_sb_info *sbi = EXT3_SB(sb); + struct ext4_sb_info *sbi = EXT4_SB(sb); unsigned long bg, first_meta_bg; int has_super = 0; first_meta_bg = le32_to_cpu(sbi->s_es->s_first_meta_bg); - if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_META_BG) || + if (!EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_META_BG) || nr < first_meta_bg) return (logic_sb_block + nr + 1); bg = sbi->s_desc_per_block * nr; - if (ext3_bg_has_super(sb, bg)) + if (ext4_bg_has_super(sb, bg)) has_super = 1; - return (has_super + ext3_group_first_block_no(sb, bg)); + return (has_super + ext4_group_first_block_no(sb, bg)); } -static int ext3_fill_super (struct super_block *sb, void *data, int silent) +static int ext4_fill_super (struct super_block *sb, void *data, int silent) { struct buffer_head * bh; - struct ext3_super_block *es = NULL; - struct ext3_sb_info *sbi; - ext3_fsblk_t block; - ext3_fsblk_t sb_block = get_sb_block(&data); - ext3_fsblk_t logic_sb_block; + struct ext4_super_block *es = NULL; + struct ext4_sb_info *sbi; + ext4_fsblk_t block; + ext4_fsblk_t sb_block = get_sb_block(&data); + ext4_fsblk_t logic_sb_block; unsigned long offset = 0; unsigned int journal_inum = 0; unsigned long journal_devnum = 0; @@ -1411,64 +1411,64 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) return -ENOMEM; sb->s_fs_info = sbi; sbi->s_mount_opt = 0; - sbi->s_resuid = EXT3_DEF_RESUID; - sbi->s_resgid = EXT3_DEF_RESGID; + sbi->s_resuid = EXT4_DEF_RESUID; + sbi->s_resgid = EXT4_DEF_RESGID; unlock_kernel(); - blocksize = sb_min_blocksize(sb, EXT3_MIN_BLOCK_SIZE); + blocksize = sb_min_blocksize(sb, EXT4_MIN_BLOCK_SIZE); if (!blocksize) { - printk(KERN_ERR "EXT3-fs: unable to set blocksize\n"); + printk(KERN_ERR "EXT4-fs: unable to set blocksize\n"); goto out_fail; } /* - * The ext3 superblock will not be buffer aligned for other than 1kB + * The ext4 superblock will not be buffer aligned for other than 1kB * block sizes. We need to calculate the offset from buffer start. */ - if (blocksize != EXT3_MIN_BLOCK_SIZE) { - logic_sb_block = (sb_block * EXT3_MIN_BLOCK_SIZE) / blocksize; - offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize; + if (blocksize != EXT4_MIN_BLOCK_SIZE) { + logic_sb_block = (sb_block * EXT4_MIN_BLOCK_SIZE) / blocksize; + offset = (sb_block * EXT4_MIN_BLOCK_SIZE) % blocksize; } else { logic_sb_block = sb_block; } if (!(bh = sb_bread(sb, logic_sb_block))) { - printk (KERN_ERR "EXT3-fs: unable to read superblock\n"); + printk (KERN_ERR "EXT4-fs: unable to read superblock\n"); goto out_fail; } /* * Note: s_es must be initialized as soon as possible because - * some ext3 macro-instructions depend on its value + * some ext4 macro-instructions depend on its value */ - es = (struct ext3_super_block *) (((char *)bh->b_data) + offset); + es = (struct ext4_super_block *) (((char *)bh->b_data) + offset); sbi->s_es = es; sb->s_magic = le16_to_cpu(es->s_magic); - if (sb->s_magic != EXT3_SUPER_MAGIC) - goto cantfind_ext3; + if (sb->s_magic != EXT4_SUPER_MAGIC) + goto cantfind_ext4; /* Set defaults before we parse the mount options */ def_mount_opts = le32_to_cpu(es->s_default_mount_opts); - if (def_mount_opts & EXT3_DEFM_DEBUG) + if (def_mount_opts & EXT4_DEFM_DEBUG) set_opt(sbi->s_mount_opt, DEBUG); - if (def_mount_opts & EXT3_DEFM_BSDGROUPS) + if (def_mount_opts & EXT4_DEFM_BSDGROUPS) set_opt(sbi->s_mount_opt, GRPID); - if (def_mount_opts & EXT3_DEFM_UID16) + if (def_mount_opts & EXT4_DEFM_UID16) set_opt(sbi->s_mount_opt, NO_UID32); - if (def_mount_opts & EXT3_DEFM_XATTR_USER) + if (def_mount_opts & EXT4_DEFM_XATTR_USER) set_opt(sbi->s_mount_opt, XATTR_USER); - if (def_mount_opts & EXT3_DEFM_ACL) + if (def_mount_opts & EXT4_DEFM_ACL) set_opt(sbi->s_mount_opt, POSIX_ACL); - if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_DATA) - sbi->s_mount_opt |= EXT3_MOUNT_JOURNAL_DATA; - else if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_ORDERED) - sbi->s_mount_opt |= EXT3_MOUNT_ORDERED_DATA; - else if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_WBACK) - sbi->s_mount_opt |= EXT3_MOUNT_WRITEBACK_DATA; - - if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_PANIC) + if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_DATA) + sbi->s_mount_opt |= EXT4_MOUNT_JOURNAL_DATA; + else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_ORDERED) + sbi->s_mount_opt |= EXT4_MOUNT_ORDERED_DATA; + else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_WBACK) + sbi->s_mount_opt |= EXT4_MOUNT_WRITEBACK_DATA; + + if (le16_to_cpu(sbi->s_es->s_errors) == EXT4_ERRORS_PANIC) set_opt(sbi->s_mount_opt, ERRORS_PANIC); - else if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_RO) + else if (le16_to_cpu(sbi->s_es->s_errors) == EXT4_ERRORS_RO) set_opt(sbi->s_mount_opt, ERRORS_RO); sbi->s_resuid = le16_to_cpu(es->s_def_resuid); @@ -1481,40 +1481,40 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) goto failed_mount; sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | - ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); + ((sbi->s_mount_opt & EXT4_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); - if (le32_to_cpu(es->s_rev_level) == EXT3_GOOD_OLD_REV && - (EXT3_HAS_COMPAT_FEATURE(sb, ~0U) || - EXT3_HAS_RO_COMPAT_FEATURE(sb, ~0U) || - EXT3_HAS_INCOMPAT_FEATURE(sb, ~0U))) + if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV && + (EXT4_HAS_COMPAT_FEATURE(sb, ~0U) || + EXT4_HAS_RO_COMPAT_FEATURE(sb, ~0U) || + EXT4_HAS_INCOMPAT_FEATURE(sb, ~0U))) printk(KERN_WARNING - "EXT3-fs warning: feature flags set on rev 0 fs, " + "EXT4-fs warning: feature flags set on rev 0 fs, " "running e2fsck is recommended\n"); /* * Check feature flags regardless of the revision level, since we * previously didn't change the revision level when setting the flags, * so there is a chance incompat flags are set on a rev 0 filesystem. */ - features = EXT3_HAS_INCOMPAT_FEATURE(sb, ~EXT3_FEATURE_INCOMPAT_SUPP); + features = EXT4_HAS_INCOMPAT_FEATURE(sb, ~EXT4_FEATURE_INCOMPAT_SUPP); if (features) { - printk(KERN_ERR "EXT3-fs: %s: couldn't mount because of " + printk(KERN_ERR "EXT4-fs: %s: couldn't mount because of " "unsupported optional features (%x).\n", sb->s_id, le32_to_cpu(features)); goto failed_mount; } - features = EXT3_HAS_RO_COMPAT_FEATURE(sb, ~EXT3_FEATURE_RO_COMPAT_SUPP); + features = EXT4_HAS_RO_COMPAT_FEATURE(sb, ~EXT4_FEATURE_RO_COMPAT_SUPP); if (!(sb->s_flags & MS_RDONLY) && features) { - printk(KERN_ERR "EXT3-fs: %s: couldn't mount RDWR because of " + printk(KERN_ERR "EXT4-fs: %s: couldn't mount RDWR because of " "unsupported optional features (%x).\n", sb->s_id, le32_to_cpu(features)); goto failed_mount; } blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size); - if (blocksize < EXT3_MIN_BLOCK_SIZE || - blocksize > EXT3_MAX_BLOCK_SIZE) { + if (blocksize < EXT4_MIN_BLOCK_SIZE || + blocksize > EXT4_MAX_BLOCK_SIZE) { printk(KERN_ERR - "EXT3-fs: Unsupported filesystem blocksize %d on %s.\n", + "EXT4-fs: Unsupported filesystem blocksize %d on %s.\n", blocksize, sb->s_id); goto failed_mount; } @@ -1526,52 +1526,52 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) * than the hardware sectorsize for the machine. */ if (blocksize < hblock) { - printk(KERN_ERR "EXT3-fs: blocksize %d too small for " + printk(KERN_ERR "EXT4-fs: blocksize %d too small for " "device blocksize %d.\n", blocksize, hblock); goto failed_mount; } brelse (bh); sb_set_blocksize(sb, blocksize); - logic_sb_block = (sb_block * EXT3_MIN_BLOCK_SIZE) / blocksize; - offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize; + logic_sb_block = (sb_block * EXT4_MIN_BLOCK_SIZE) / blocksize; + offset = (sb_block * EXT4_MIN_BLOCK_SIZE) % blocksize; bh = sb_bread(sb, logic_sb_block); if (!bh) { printk(KERN_ERR - "EXT3-fs: Can't read superblock on 2nd try.\n"); + "EXT4-fs: Can't read superblock on 2nd try.\n"); goto failed_mount; } - es = (struct ext3_super_block *)(((char *)bh->b_data) + offset); + es = (struct ext4_super_block *)(((char *)bh->b_data) + offset); sbi->s_es = es; - if (es->s_magic != cpu_to_le16(EXT3_SUPER_MAGIC)) { + if (es->s_magic != cpu_to_le16(EXT4_SUPER_MAGIC)) { printk (KERN_ERR - "EXT3-fs: Magic mismatch, very weird !\n"); + "EXT4-fs: Magic mismatch, very weird !\n"); goto failed_mount; } } - sb->s_maxbytes = ext3_max_size(sb->s_blocksize_bits); + sb->s_maxbytes = ext4_max_size(sb->s_blocksize_bits); - if (le32_to_cpu(es->s_rev_level) == EXT3_GOOD_OLD_REV) { - sbi->s_inode_size = EXT3_GOOD_OLD_INODE_SIZE; - sbi->s_first_ino = EXT3_GOOD_OLD_FIRST_INO; + if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV) { + sbi->s_inode_size = EXT4_GOOD_OLD_INODE_SIZE; + sbi->s_first_ino = EXT4_GOOD_OLD_FIRST_INO; } else { sbi->s_inode_size = le16_to_cpu(es->s_inode_size); sbi->s_first_ino = le32_to_cpu(es->s_first_ino); - if ((sbi->s_inode_size < EXT3_GOOD_OLD_INODE_SIZE) || + if ((sbi->s_inode_size < EXT4_GOOD_OLD_INODE_SIZE) || (sbi->s_inode_size & (sbi->s_inode_size - 1)) || (sbi->s_inode_size > blocksize)) { printk (KERN_ERR - "EXT3-fs: unsupported inode size: %d\n", + "EXT4-fs: unsupported inode size: %d\n", sbi->s_inode_size); goto failed_mount; } } - sbi->s_frag_size = EXT3_MIN_FRAG_SIZE << + sbi->s_frag_size = EXT4_MIN_FRAG_SIZE << le32_to_cpu(es->s_log_frag_size); if (blocksize != sbi->s_frag_size) { printk(KERN_ERR - "EXT3-fs: fragsize %lu != blocksize %u (unsupported)\n", + "EXT4-fs: fragsize %lu != blocksize %u (unsupported)\n", sbi->s_frag_size, blocksize); goto failed_mount; } @@ -1579,62 +1579,62 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group); sbi->s_frags_per_group = le32_to_cpu(es->s_frags_per_group); sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group); - if (EXT3_INODE_SIZE(sb) == 0) - goto cantfind_ext3; - sbi->s_inodes_per_block = blocksize / EXT3_INODE_SIZE(sb); + if (EXT4_INODE_SIZE(sb) == 0) + goto cantfind_ext4; + sbi->s_inodes_per_block = blocksize / EXT4_INODE_SIZE(sb); if (sbi->s_inodes_per_block == 0) - goto cantfind_ext3; + goto cantfind_ext4; sbi->s_itb_per_group = sbi->s_inodes_per_group / sbi->s_inodes_per_block; - sbi->s_desc_per_block = blocksize / sizeof(struct ext3_group_desc); + sbi->s_desc_per_block = blocksize / sizeof(struct ext4_group_desc); sbi->s_sbh = bh; sbi->s_mount_state = le16_to_cpu(es->s_state); - sbi->s_addr_per_block_bits = log2(EXT3_ADDR_PER_BLOCK(sb)); - sbi->s_desc_per_block_bits = log2(EXT3_DESC_PER_BLOCK(sb)); + sbi->s_addr_per_block_bits = log2(EXT4_ADDR_PER_BLOCK(sb)); + sbi->s_desc_per_block_bits = log2(EXT4_DESC_PER_BLOCK(sb)); for (i=0; i < 4; i++) sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]); sbi->s_def_hash_version = es->s_def_hash_version; if (sbi->s_blocks_per_group > blocksize * 8) { printk (KERN_ERR - "EXT3-fs: #blocks per group too big: %lu\n", + "EXT4-fs: #blocks per group too big: %lu\n", sbi->s_blocks_per_group); goto failed_mount; } if (sbi->s_frags_per_group > blocksize * 8) { printk (KERN_ERR - "EXT3-fs: #fragments per group too big: %lu\n", + "EXT4-fs: #fragments per group too big: %lu\n", sbi->s_frags_per_group); goto failed_mount; } if (sbi->s_inodes_per_group > blocksize * 8) { printk (KERN_ERR - "EXT3-fs: #inodes per group too big: %lu\n", + "EXT4-fs: #inodes per group too big: %lu\n", sbi->s_inodes_per_group); goto failed_mount; } if (le32_to_cpu(es->s_blocks_count) > (sector_t)(~0ULL) >> (sb->s_blocksize_bits - 9)) { - printk(KERN_ERR "EXT3-fs: filesystem on %s:" + printk(KERN_ERR "EXT4-fs: filesystem on %s:" " too large to mount safely\n", sb->s_id); if (sizeof(sector_t) < 8) - printk(KERN_WARNING "EXT3-fs: CONFIG_LBD not " + printk(KERN_WARNING "EXT4-fs: CONFIG_LBD not " "enabled\n"); goto failed_mount; } - if (EXT3_BLOCKS_PER_GROUP(sb) == 0) - goto cantfind_ext3; + if (EXT4_BLOCKS_PER_GROUP(sb) == 0) + goto cantfind_ext4; sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) - le32_to_cpu(es->s_first_data_block) - 1) - / EXT3_BLOCKS_PER_GROUP(sb)) + 1; - db_count = (sbi->s_groups_count + EXT3_DESC_PER_BLOCK(sb) - 1) / - EXT3_DESC_PER_BLOCK(sb); + / EXT4_BLOCKS_PER_GROUP(sb)) + 1; + db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) / + EXT4_DESC_PER_BLOCK(sb); sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *), GFP_KERNEL); if (sbi->s_group_desc == NULL) { - printk (KERN_ERR "EXT3-fs: not enough memory\n"); + printk (KERN_ERR "EXT4-fs: not enough memory\n"); goto failed_mount; } @@ -1644,14 +1644,14 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) block = descriptor_loc(sb, logic_sb_block, i); sbi->s_group_desc[i] = sb_bread(sb, block); if (!sbi->s_group_desc[i]) { - printk (KERN_ERR "EXT3-fs: " + printk (KERN_ERR "EXT4-fs: " "can't read group descriptor %d\n", i); db_count = i; goto failed_mount2; } } - if (!ext3_check_descriptors (sb)) { - printk(KERN_ERR "EXT3-fs: group descriptors corrupted!\n"); + if (!ext4_check_descriptors (sb)) { + printk(KERN_ERR "EXT4-fs: group descriptors corrupted!\n"); goto failed_mount2; } sbi->s_gdb_count = db_count; @@ -1659,11 +1659,11 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) spin_lock_init(&sbi->s_next_gen_lock); percpu_counter_init(&sbi->s_freeblocks_counter, - ext3_count_free_blocks(sb)); + ext4_count_free_blocks(sb)); percpu_counter_init(&sbi->s_freeinodes_counter, - ext3_count_free_inodes(sb)); + ext4_count_free_inodes(sb)); percpu_counter_init(&sbi->s_dirs_counter, - ext3_count_dirs(sb)); + ext4_count_dirs(sb)); /* per fileystem reservation list head & lock */ spin_lock_init(&sbi->s_rsv_window_lock); @@ -1672,45 +1672,45 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) * reservation window list --- it gives us a placeholder for * append-at-start-of-list which makes the allocation logic * _much_ simpler. */ - sbi->s_rsv_window_head.rsv_start = EXT3_RESERVE_WINDOW_NOT_ALLOCATED; - sbi->s_rsv_window_head.rsv_end = EXT3_RESERVE_WINDOW_NOT_ALLOCATED; + sbi->s_rsv_window_head.rsv_start = EXT4_RESERVE_WINDOW_NOT_ALLOCATED; + sbi->s_rsv_window_head.rsv_end = EXT4_RESERVE_WINDOW_NOT_ALLOCATED; sbi->s_rsv_window_head.rsv_alloc_hit = 0; sbi->s_rsv_window_head.rsv_goal_size = 0; - ext3_rsv_window_add(sb, &sbi->s_rsv_window_head); + ext4_rsv_window_add(sb, &sbi->s_rsv_window_head); /* * set up enough so that it can read an inode */ - sb->s_op = &ext3_sops; - sb->s_export_op = &ext3_export_ops; - sb->s_xattr = ext3_xattr_handlers; + sb->s_op = &ext4_sops; + sb->s_export_op = &ext4_export_ops; + sb->s_xattr = ext4_xattr_handlers; #ifdef CONFIG_QUOTA - sb->s_qcop = &ext3_qctl_operations; - sb->dq_op = &ext3_quota_operations; + sb->s_qcop = &ext4_qctl_operations; + sb->dq_op = &ext4_quota_operations; #endif INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */ sb->s_root = NULL; needs_recovery = (es->s_last_orphan != 0 || - EXT3_HAS_INCOMPAT_FEATURE(sb, - EXT3_FEATURE_INCOMPAT_RECOVER)); + EXT4_HAS_INCOMPAT_FEATURE(sb, + EXT4_FEATURE_INCOMPAT_RECOVER)); /* * The first inode we look at is the journal inode. Don't try * root first: it may be modified in the journal! */ if (!test_opt(sb, NOLOAD) && - EXT3_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { - if (ext3_load_journal(sb, es, journal_devnum)) + EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_HAS_JOURNAL)) { + if (ext4_load_journal(sb, es, journal_devnum)) goto failed_mount3; } else if (journal_inum) { - if (ext3_create_journal(sb, es, journal_inum)) + if (ext4_create_journal(sb, es, journal_inum)) goto failed_mount3; } else { if (!silent) printk (KERN_ERR - "ext3: No journal on filesystem on %s\n", + "ext4: No journal on filesystem on %s\n", sb->s_id); goto failed_mount3; } @@ -1729,11 +1729,11 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) set_opt(sbi->s_mount_opt, JOURNAL_DATA); break; - case EXT3_MOUNT_ORDERED_DATA: - case EXT3_MOUNT_WRITEBACK_DATA: + case EXT4_MOUNT_ORDERED_DATA: + case EXT4_MOUNT_WRITEBACK_DATA: if (!journal_check_available_features (sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)) { - printk(KERN_ERR "EXT3-fs: Journal does not support " + printk(KERN_ERR "EXT4-fs: Journal does not support " "requested data journaling mode\n"); goto failed_mount4; } @@ -1742,8 +1742,8 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) } if (test_opt(sb, NOBH)) { - if (!(test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)) { - printk(KERN_WARNING "EXT3-fs: Ignoring nobh option - " + if (!(test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA)) { + printk(KERN_WARNING "EXT4-fs: Ignoring nobh option - " "its supported only with writeback mode\n"); clear_opt(sbi->s_mount_opt, NOBH); } @@ -1753,21 +1753,21 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) * so we can safely mount the rest of the filesystem now. */ - root = iget(sb, EXT3_ROOT_INO); + root = iget(sb, EXT4_ROOT_INO); sb->s_root = d_alloc_root(root); if (!sb->s_root) { - printk(KERN_ERR "EXT3-fs: get root inode failed\n"); + printk(KERN_ERR "EXT4-fs: get root inode failed\n"); iput(root); goto failed_mount4; } if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { dput(sb->s_root); sb->s_root = NULL; - printk(KERN_ERR "EXT3-fs: corrupt root inode, run e2fsck\n"); + printk(KERN_ERR "EXT4-fs: corrupt root inode, run e2fsck\n"); goto failed_mount4; } - ext3_setup_super (sb, es, sb->s_flags & MS_RDONLY); + ext4_setup_super (sb, es, sb->s_flags & MS_RDONLY); /* * akpm: core read_super() calls in here with the superblock locked. * That deadlocks, because orphan cleanup needs to lock the superblock @@ -1776,23 +1776,23 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) * and aviro says that's the only reason for hanging onto the * superblock lock. */ - EXT3_SB(sb)->s_mount_state |= EXT3_ORPHAN_FS; - ext3_orphan_cleanup(sb, es); - EXT3_SB(sb)->s_mount_state &= ~EXT3_ORPHAN_FS; + EXT4_SB(sb)->s_mount_state |= EXT4_ORPHAN_FS; + ext4_orphan_cleanup(sb, es); + EXT4_SB(sb)->s_mount_state &= ~EXT4_ORPHAN_FS; if (needs_recovery) - printk (KERN_INFO "EXT3-fs: recovery complete.\n"); - ext3_mark_recovery_complete(sb, es); - printk (KERN_INFO "EXT3-fs: mounted filesystem with %s data mode.\n", - test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA ? "journal": - test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA ? "ordered": + printk (KERN_INFO "EXT4-fs: recovery complete.\n"); + ext4_mark_recovery_complete(sb, es); + printk (KERN_INFO "EXT4-fs: mounted filesystem with %s data mode.\n", + test_opt(sb,DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA ? "journal": + test_opt(sb,DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA ? "ordered": "writeback"); lock_kernel(); return 0; -cantfind_ext3: +cantfind_ext4: if (!silent) - printk(KERN_ERR "VFS: Can't find ext3 filesystem on dev %s.\n", + printk(KERN_ERR "VFS: Can't find ext4 filesystem on dev %s.\n", sb->s_id); goto failed_mount; @@ -1811,7 +1811,7 @@ failed_mount: for (i = 0; i < MAXQUOTAS; i++) kfree(sbi->s_qf_names[i]); #endif - ext3_blkdev_remove(sbi); + ext4_blkdev_remove(sbi); brelse(bh); out_fail: sb->s_fs_info = NULL; @@ -1825,13 +1825,13 @@ out_fail: * initial mount, once the journal has been initialised but before we've * done any recovery; and again on any subsequent remount. */ -static void ext3_init_journal_params(struct super_block *sb, journal_t *journal) +static void ext4_init_journal_params(struct super_block *sb, journal_t *journal) { - struct ext3_sb_info *sbi = EXT3_SB(sb); + struct ext4_sb_info *sbi = EXT4_SB(sb); if (sbi->s_commit_interval) journal->j_commit_interval = sbi->s_commit_interval; - /* We could also set up an ext3-specific default for the commit + /* We could also set up an ext4-specific default for the commit * interval here, but for now we'll just fall back to the jbd * default. */ @@ -1843,7 +1843,7 @@ static void ext3_init_journal_params(struct super_block *sb, journal_t *journal) spin_unlock(&journal->j_state_lock); } -static journal_t *ext3_get_journal(struct super_block *sb, +static journal_t *ext4_get_journal(struct super_block *sb, unsigned int journal_inum) { struct inode *journal_inode; @@ -1855,55 +1855,55 @@ static journal_t *ext3_get_journal(struct super_block *sb, journal_inode = iget(sb, journal_inum); if (!journal_inode) { - printk(KERN_ERR "EXT3-fs: no journal found.\n"); + printk(KERN_ERR "EXT4-fs: no journal found.\n"); return NULL; } if (!journal_inode->i_nlink) { make_bad_inode(journal_inode); iput(journal_inode); - printk(KERN_ERR "EXT3-fs: journal inode is deleted.\n"); + printk(KERN_ERR "EXT4-fs: journal inode is deleted.\n"); return NULL; } jbd_debug(2, "Journal inode found at %p: %Ld bytes\n", journal_inode, journal_inode->i_size); if (is_bad_inode(journal_inode) || !S_ISREG(journal_inode->i_mode)) { - printk(KERN_ERR "EXT3-fs: invalid journal inode.\n"); + printk(KERN_ERR "EXT4-fs: invalid journal inode.\n"); iput(journal_inode); return NULL; } journal = journal_init_inode(journal_inode); if (!journal) { - printk(KERN_ERR "EXT3-fs: Could not load journal inode\n"); + printk(KERN_ERR "EXT4-fs: Could not load journal inode\n"); iput(journal_inode); return NULL; } journal->j_private = sb; - ext3_init_journal_params(sb, journal); + ext4_init_journal_params(sb, journal); return journal; } -static journal_t *ext3_get_dev_journal(struct super_block *sb, +static journal_t *ext4_get_dev_journal(struct super_block *sb, dev_t j_dev) { struct buffer_head * bh; journal_t *journal; - ext3_fsblk_t start; - ext3_fsblk_t len; + ext4_fsblk_t start; + ext4_fsblk_t len; int hblock, blocksize; - ext3_fsblk_t sb_block; + ext4_fsblk_t sb_block; unsigned long offset; - struct ext3_super_block * es; + struct ext4_super_block * es; struct block_device *bdev; - bdev = ext3_blkdev_get(j_dev); + bdev = ext4_blkdev_get(j_dev); if (bdev == NULL) return NULL; if (bd_claim(bdev, sb)) { printk(KERN_ERR - "EXT3: failed to claim external journal device.\n"); + "EXT4: failed to claim external journal device.\n"); blkdev_put(bdev); return NULL; } @@ -1912,31 +1912,31 @@ static journal_t *ext3_get_dev_journal(struct super_block *sb, hblock = bdev_hardsect_size(bdev); if (blocksize < hblock) { printk(KERN_ERR - "EXT3-fs: blocksize too small for journal device.\n"); + "EXT4-fs: blocksize too small for journal device.\n"); goto out_bdev; } - sb_block = EXT3_MIN_BLOCK_SIZE / blocksize; - offset = EXT3_MIN_BLOCK_SIZE % blocksize; + sb_block = EXT4_MIN_BLOCK_SIZE / blocksize; + offset = EXT4_MIN_BLOCK_SIZE % blocksize; set_blocksize(bdev, blocksize); if (!(bh = __bread(bdev, sb_block, blocksize))) { - printk(KERN_ERR "EXT3-fs: couldn't read superblock of " + printk(KERN_ERR "EXT4-fs: couldn't read superblock of " "external journal\n"); goto out_bdev; } - es = (struct ext3_super_block *) (((char *)bh->b_data) + offset); - if ((le16_to_cpu(es->s_magic) != EXT3_SUPER_MAGIC) || + es = (struct ext4_super_block *) (((char *)bh->b_data) + offset); + if ((le16_to_cpu(es->s_magic) != EXT4_SUPER_MAGIC) || !(le32_to_cpu(es->s_feature_incompat) & - EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) { - printk(KERN_ERR "EXT3-fs: external journal has " + EXT4_FEATURE_INCOMPAT_JOURNAL_DEV)) { + printk(KERN_ERR "EXT4-fs: external journal has " "bad superblock\n"); brelse(bh); goto out_bdev; } - if (memcmp(EXT3_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) { - printk(KERN_ERR "EXT3-fs: journal UUID does not match\n"); + if (memcmp(EXT4_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) { + printk(KERN_ERR "EXT4-fs: journal UUID does not match\n"); brelse(bh); goto out_bdev; } @@ -1948,34 +1948,34 @@ static journal_t *ext3_get_dev_journal(struct super_block *sb, journal = journal_init_dev(bdev, sb->s_bdev, start, len, blocksize); if (!journal) { - printk(KERN_ERR "EXT3-fs: failed to create device journal\n"); + printk(KERN_ERR "EXT4-fs: failed to create device journal\n"); goto out_bdev; } journal->j_private = sb; ll_rw_block(READ, 1, &journal->j_sb_buffer); wait_on_buffer(journal->j_sb_buffer); if (!buffer_uptodate(journal->j_sb_buffer)) { - printk(KERN_ERR "EXT3-fs: I/O error on journal device\n"); + printk(KERN_ERR "EXT4-fs: I/O error on journal device\n"); goto out_journal; } if (be32_to_cpu(journal->j_superblock->s_nr_users) != 1) { - printk(KERN_ERR "EXT3-fs: External journal has more than one " + printk(KERN_ERR "EXT4-fs: External journal has more than one " "user (unsupported) - %d\n", be32_to_cpu(journal->j_superblock->s_nr_users)); goto out_journal; } - EXT3_SB(sb)->journal_bdev = bdev; - ext3_init_journal_params(sb, journal); + EXT4_SB(sb)->journal_bdev = bdev; + ext4_init_journal_params(sb, journal); return journal; out_journal: journal_destroy(journal); out_bdev: - ext3_blkdev_put(bdev); + ext4_blkdev_put(bdev); return NULL; } -static int ext3_load_journal(struct super_block *sb, - struct ext3_super_block *es, +static int ext4_load_journal(struct super_block *sb, + struct ext4_super_block *es, unsigned long journal_devnum) { journal_t *journal; @@ -1986,7 +1986,7 @@ static int ext3_load_journal(struct super_block *sb, if (journal_devnum && journal_devnum != le32_to_cpu(es->s_journal_dev)) { - printk(KERN_INFO "EXT3-fs: external journal device major/minor " + printk(KERN_INFO "EXT4-fs: external journal device major/minor " "numbers have changed\n"); journal_dev = new_decode_dev(journal_devnum); } else @@ -2000,56 +2000,56 @@ static int ext3_load_journal(struct super_block *sb, * can get read-write access to the device. */ - if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER)) { + if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER)) { if (sb->s_flags & MS_RDONLY) { - printk(KERN_INFO "EXT3-fs: INFO: recovery " + printk(KERN_INFO "EXT4-fs: INFO: recovery " "required on readonly filesystem.\n"); if (really_read_only) { - printk(KERN_ERR "EXT3-fs: write access " + printk(KERN_ERR "EXT4-fs: write access " "unavailable, cannot proceed.\n"); return -EROFS; } - printk (KERN_INFO "EXT3-fs: write access will " + printk (KERN_INFO "EXT4-fs: write access will " "be enabled during recovery.\n"); } } if (journal_inum && journal_dev) { - printk(KERN_ERR "EXT3-fs: filesystem has both journal " + printk(KERN_ERR "EXT4-fs: filesystem has both journal " "and inode journals!\n"); return -EINVAL; } if (journal_inum) { - if (!(journal = ext3_get_journal(sb, journal_inum))) + if (!(journal = ext4_get_journal(sb, journal_inum))) return -EINVAL; } else { - if (!(journal = ext3_get_dev_journal(sb, journal_dev))) + if (!(journal = ext4_get_dev_journal(sb, journal_dev))) return -EINVAL; } if (!really_read_only && test_opt(sb, UPDATE_JOURNAL)) { err = journal_update_format(journal); if (err) { - printk(KERN_ERR "EXT3-fs: error updating journal.\n"); + printk(KERN_ERR "EXT4-fs: error updating journal.\n"); journal_destroy(journal); return err; } } - if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER)) + if (!EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER)) err = journal_wipe(journal, !really_read_only); if (!err) err = journal_load(journal); if (err) { - printk(KERN_ERR "EXT3-fs: error loading journal.\n"); + printk(KERN_ERR "EXT4-fs: error loading journal.\n"); journal_destroy(journal); return err; } - EXT3_SB(sb)->s_journal = journal; - ext3_clear_journal_err(sb, es); + EXT4_SB(sb)->s_journal = journal; + ext4_clear_journal_err(sb, es); if (journal_devnum && journal_devnum != le32_to_cpu(es->s_journal_dev)) { @@ -2057,62 +2057,62 @@ static int ext3_load_journal(struct super_block *sb, sb->s_dirt = 1; /* Make sure we flush the recovery flag to disk. */ - ext3_commit_super(sb, es, 1); + ext4_commit_super(sb, es, 1); } return 0; } -static int ext3_create_journal(struct super_block * sb, - struct ext3_super_block * es, +static int ext4_create_journal(struct super_block * sb, + struct ext4_super_block * es, unsigned int journal_inum) { journal_t *journal; if (sb->s_flags & MS_RDONLY) { - printk(KERN_ERR "EXT3-fs: readonly filesystem when trying to " + printk(KERN_ERR "EXT4-fs: readonly filesystem when trying to " "create journal.\n"); return -EROFS; } - if (!(journal = ext3_get_journal(sb, journal_inum))) + if (!(journal = ext4_get_journal(sb, journal_inum))) return -EINVAL; - printk(KERN_INFO "EXT3-fs: creating new journal on inode %u\n", + printk(KERN_INFO "EXT4-fs: creating new journal on inode %u\n", journal_inum); if (journal_create(journal)) { - printk(KERN_ERR "EXT3-fs: error creating journal.\n"); + printk(KERN_ERR "EXT4-fs: error creating journal.\n"); journal_destroy(journal); return -EIO; } - EXT3_SB(sb)->s_journal = journal; + EXT4_SB(sb)->s_journal = journal; - ext3_update_dynamic_rev(sb); - EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); - EXT3_SET_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL); + ext4_update_dynamic_rev(sb); + EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER); + EXT4_SET_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_HAS_JOURNAL); es->s_journal_inum = cpu_to_le32(journal_inum); sb->s_dirt = 1; /* Make sure we flush the recovery flag to disk. */ - ext3_commit_super(sb, es, 1); + ext4_commit_super(sb, es, 1); return 0; } -static void ext3_commit_super (struct super_block * sb, - struct ext3_super_block * es, +static void ext4_commit_super (struct super_block * sb, + struct ext4_super_block * es, int sync) { - struct buffer_head *sbh = EXT3_SB(sb)->s_sbh; + struct buffer_head *sbh = EXT4_SB(sb)->s_sbh; if (!sbh) return; es->s_wtime = cpu_to_le32(get_seconds()); - es->s_free_blocks_count = cpu_to_le32(ext3_count_free_blocks(sb)); - es->s_free_inodes_count = cpu_to_le32(ext3_count_free_inodes(sb)); + es->s_free_blocks_count = cpu_to_le32(ext4_count_free_blocks(sb)); + es->s_free_inodes_count = cpu_to_le32(ext4_count_free_inodes(sb)); BUFFER_TRACE(sbh, "marking dirty"); mark_buffer_dirty(sbh); if (sync) @@ -2125,18 +2125,18 @@ static void ext3_commit_super (struct super_block * sb, * remounting) the filesystem readonly, then we will end up with a * consistent fs on disk. Record that fact. */ -static void ext3_mark_recovery_complete(struct super_block * sb, - struct ext3_super_block * es) +static void ext4_mark_recovery_complete(struct super_block * sb, + struct ext4_super_block * es) { - journal_t *journal = EXT3_SB(sb)->s_journal; + journal_t *journal = EXT4_SB(sb)->s_journal; journal_lock_updates(journal); journal_flush(journal); - if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER) && + if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER) && sb->s_flags & MS_RDONLY) { - EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); + EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER); sb->s_dirt = 0; - ext3_commit_super(sb, es, 1); + ext4_commit_super(sb, es, 1); } journal_unlock_updates(journal); } @@ -2146,33 +2146,33 @@ static void ext3_mark_recovery_complete(struct super_block * sb, * has recorded an error from a previous lifetime, move that error to the * main filesystem now. */ -static void ext3_clear_journal_err(struct super_block * sb, - struct ext3_super_block * es) +static void ext4_clear_journal_err(struct super_block * sb, + struct ext4_super_block * es) { journal_t *journal; int j_errno; const char *errstr; - journal = EXT3_SB(sb)->s_journal; + journal = EXT4_SB(sb)->s_journal; /* * Now check for any error status which may have been recorded in the - * journal by a prior ext3_error() or ext3_abort() + * journal by a prior ext4_error() or ext4_abort() */ j_errno = journal_errno(journal); if (j_errno) { char nbuf[16]; - errstr = ext3_decode_error(sb, j_errno, nbuf); - ext3_warning(sb, __FUNCTION__, "Filesystem error recorded " + errstr = ext4_decode_error(sb, j_errno, nbuf); + ext4_warning(sb, __FUNCTION__, "Filesystem error recorded " "from previous mount: %s", errstr); - ext3_warning(sb, __FUNCTION__, "Marking fs in need of " + ext4_warning(sb, __FUNCTION__, "Marking fs in need of " "filesystem check."); - EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS; - es->s_state |= cpu_to_le16(EXT3_ERROR_FS); - ext3_commit_super (sb, es, 1); + EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; + es->s_state |= cpu_to_le16(EXT4_ERROR_FS); + ext4_commit_super (sb, es, 1); journal_clear_err(journal); } @@ -2182,7 +2182,7 @@ static void ext3_clear_journal_err(struct super_block * sb, * Force the running and committing transactions to commit, * and wait on the commit. */ -int ext3_force_commit(struct super_block *sb) +int ext4_force_commit(struct super_block *sb) { journal_t *journal; int ret; @@ -2190,14 +2190,14 @@ int ext3_force_commit(struct super_block *sb) if (sb->s_flags & MS_RDONLY) return 0; - journal = EXT3_SB(sb)->s_journal; + journal = EXT4_SB(sb)->s_journal; sb->s_dirt = 0; - ret = ext3_journal_force_commit(journal); + ret = ext4_journal_force_commit(journal); return ret; } /* - * Ext3 always journals updates to the superblock itself, so we don't + * Ext4 always journals updates to the superblock itself, so we don't * have to propagate any other updates to the superblock on disk at this * point. Just start an async writeback to get the buffers on their way * to the disk. @@ -2205,21 +2205,21 @@ int ext3_force_commit(struct super_block *sb) * This implicitly triggers the writebehind on sync(). */ -static void ext3_write_super (struct super_block * sb) +static void ext4_write_super (struct super_block * sb) { if (mutex_trylock(&sb->s_lock) != 0) BUG(); sb->s_dirt = 0; } -static int ext3_sync_fs(struct super_block *sb, int wait) +static int ext4_sync_fs(struct super_block *sb, int wait) { tid_t target; sb->s_dirt = 0; - if (journal_start_commit(EXT3_SB(sb)->s_journal, &target)) { + if (journal_start_commit(EXT4_SB(sb)->s_journal, &target)) { if (wait) - log_wait_commit(EXT3_SB(sb)->s_journal, target); + log_wait_commit(EXT4_SB(sb)->s_journal, target); } return 0; } @@ -2228,20 +2228,20 @@ static int ext3_sync_fs(struct super_block *sb, int wait) * LVM calls this function before a (read-only) snapshot is created. This * gives us a chance to flush the journal completely and mark the fs clean. */ -static void ext3_write_super_lockfs(struct super_block *sb) +static void ext4_write_super_lockfs(struct super_block *sb) { sb->s_dirt = 0; if (!(sb->s_flags & MS_RDONLY)) { - journal_t *journal = EXT3_SB(sb)->s_journal; + journal_t *journal = EXT4_SB(sb)->s_journal; /* Now we set up the journal barrier. */ journal_lock_updates(journal); journal_flush(journal); /* Journal blocked and flushed, clear needs_recovery flag. */ - EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); - ext3_commit_super(sb, EXT3_SB(sb)->s_es, 1); + EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER); + ext4_commit_super(sb, EXT4_SB(sb)->s_es, 1); } } @@ -2249,25 +2249,25 @@ static void ext3_write_super_lockfs(struct super_block *sb) * Called by LVM after the snapshot is done. We need to reset the RECOVER * flag here, even though the filesystem is not technically dirty yet. */ -static void ext3_unlockfs(struct super_block *sb) +static void ext4_unlockfs(struct super_block *sb) { if (!(sb->s_flags & MS_RDONLY)) { lock_super(sb); /* Reser the needs_recovery flag before the fs is unlocked. */ - EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); - ext3_commit_super(sb, EXT3_SB(sb)->s_es, 1); + EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER); + ext4_commit_super(sb, EXT4_SB(sb)->s_es, 1); unlock_super(sb); - journal_unlock_updates(EXT3_SB(sb)->s_journal); + journal_unlock_updates(EXT4_SB(sb)->s_journal); } } -static int ext3_remount (struct super_block * sb, int * flags, char * data) +static int ext4_remount (struct super_block * sb, int * flags, char * data) { - struct ext3_super_block * es; - struct ext3_sb_info *sbi = EXT3_SB(sb); - ext3_fsblk_t n_blocks_count = 0; + struct ext4_super_block * es; + struct ext4_sb_info *sbi = EXT4_SB(sb); + ext4_fsblk_t n_blocks_count = 0; unsigned long old_sb_flags; - struct ext3_mount_options old_opts; + struct ext4_mount_options old_opts; int err; #ifdef CONFIG_QUOTA int i; @@ -2293,19 +2293,19 @@ static int ext3_remount (struct super_block * sb, int * flags, char * data) goto restore_opts; } - if (sbi->s_mount_opt & EXT3_MOUNT_ABORT) - ext3_abort(sb, __FUNCTION__, "Abort forced by user"); + if (sbi->s_mount_opt & EXT4_MOUNT_ABORT) + ext4_abort(sb, __FUNCTION__, "Abort forced by user"); sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | - ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); + ((sbi->s_mount_opt & EXT4_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); es = sbi->s_es; - ext3_init_journal_params(sb, sbi->s_journal); + ext4_init_journal_params(sb, sbi->s_journal); if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY) || n_blocks_count > le32_to_cpu(es->s_blocks_count)) { - if (sbi->s_mount_opt & EXT3_MOUNT_ABORT) { + if (sbi->s_mount_opt & EXT4_MOUNT_ABORT) { err = -EROFS; goto restore_opts; } @@ -2322,16 +2322,16 @@ static int ext3_remount (struct super_block * sb, int * flags, char * data) * readonly, and if so set the rdonly flag and then * mark the partition as valid again. */ - if (!(es->s_state & cpu_to_le16(EXT3_VALID_FS)) && - (sbi->s_mount_state & EXT3_VALID_FS)) + if (!(es->s_state & cpu_to_le16(EXT4_VALID_FS)) && + (sbi->s_mount_state & EXT4_VALID_FS)) es->s_state = cpu_to_le16(sbi->s_mount_state); - ext3_mark_recovery_complete(sb, es); + ext4_mark_recovery_complete(sb, es); } else { __le32 ret; - if ((ret = EXT3_HAS_RO_COMPAT_FEATURE(sb, - ~EXT3_FEATURE_RO_COMPAT_SUPP))) { - printk(KERN_WARNING "EXT3-fs: %s: couldn't " + if ((ret = EXT4_HAS_RO_COMPAT_FEATURE(sb, + ~EXT4_FEATURE_RO_COMPAT_SUPP))) { + printk(KERN_WARNING "EXT4-fs: %s: couldn't " "remount RDWR because of unsupported " "optional features (%x).\n", sb->s_id, le32_to_cpu(ret)); @@ -2344,11 +2344,11 @@ static int ext3_remount (struct super_block * sb, int * flags, char * data) * been changed by e2fsck since we originally mounted * the partition.) */ - ext3_clear_journal_err(sb, es); + ext4_clear_journal_err(sb, es); sbi->s_mount_state = le16_to_cpu(es->s_state); - if ((err = ext3_group_extend(sb, es, n_blocks_count))) + if ((err = ext4_group_extend(sb, es, n_blocks_count))) goto restore_opts; - if (!ext3_setup_super (sb, es, 0)) + if (!ext4_setup_super (sb, es, 0)) sb->s_flags &= ~MS_RDONLY; } } @@ -2378,19 +2378,19 @@ restore_opts: return err; } -static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf) +static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf) { struct super_block *sb = dentry->d_sb; - struct ext3_sb_info *sbi = EXT3_SB(sb); - struct ext3_super_block *es = sbi->s_es; - ext3_fsblk_t overhead; + struct ext4_sb_info *sbi = EXT4_SB(sb); + struct ext4_super_block *es = sbi->s_es; + ext4_fsblk_t overhead; int i; if (test_opt (sb, MINIX_DF)) overhead = 0; else { unsigned long ngroups; - ngroups = EXT3_SB(sb)->s_groups_count; + ngroups = EXT4_SB(sb)->s_groups_count; smp_rmb(); /* @@ -2409,8 +2409,8 @@ static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf) * feature is turned on, then not all groups have this. */ for (i = 0; i < ngroups; i++) { - overhead += ext3_bg_has_super(sb, i) + - ext3_bg_num_gdb(sb, i); + overhead += ext4_bg_has_super(sb, i) + + ext4_bg_num_gdb(sb, i); cond_resched(); } @@ -2418,10 +2418,10 @@ static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf) * Every block group has an inode bitmap, a block * bitmap, and an inode table. */ - overhead += (ngroups * (2 + EXT3_SB(sb)->s_itb_per_group)); + overhead += (ngroups * (2 + EXT4_SB(sb)->s_itb_per_group)); } - buf->f_type = EXT3_SUPER_MAGIC; + buf->f_type = EXT4_SUPER_MAGIC; buf->f_bsize = sb->s_blocksize; buf->f_blocks = le32_to_cpu(es->s_blocks_count) - overhead; buf->f_bfree = percpu_counter_sum(&sbi->s_freeblocks_counter); @@ -2430,14 +2430,14 @@ static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf) buf->f_bavail = 0; buf->f_files = le32_to_cpu(es->s_inodes_count); buf->f_ffree = percpu_counter_sum(&sbi->s_freeinodes_counter); - buf->f_namelen = EXT3_NAME_LEN; + buf->f_namelen = EXT4_NAME_LEN; return 0; } /* Helper function for writing quotas on sync - we need to start transaction before quota file * is locked for write. Otherwise the are possible deadlocks: * Process 1 Process 2 - * ext3_create() quota_sync() + * ext4_create() quota_sync() * journal_start() write_dquot() * DQUOT_INIT() down(dqio_mutex) * down(dqio_mutex) journal_start() @@ -2451,111 +2451,111 @@ static inline struct inode *dquot_to_inode(struct dquot *dquot) return sb_dqopt(dquot->dq_sb)->files[dquot->dq_type]; } -static int ext3_dquot_initialize(struct inode *inode, int type) +static int ext4_dquot_initialize(struct inode *inode, int type) { handle_t *handle; int ret, err; /* We may create quota structure so we need to reserve enough blocks */ - handle = ext3_journal_start(inode, 2*EXT3_QUOTA_INIT_BLOCKS(inode->i_sb)); + handle = ext4_journal_start(inode, 2*EXT4_QUOTA_INIT_BLOCKS(inode->i_sb)); if (IS_ERR(handle)) return PTR_ERR(handle); ret = dquot_initialize(inode, type); - err = ext3_journal_stop(handle); + err = ext4_journal_stop(handle); if (!ret) ret = err; return ret; } -static int ext3_dquot_drop(struct inode *inode) +static int ext4_dquot_drop(struct inode *inode) { handle_t *handle; int ret, err; /* We may delete quota structure so we need to reserve enough blocks */ - handle = ext3_journal_start(inode, 2*EXT3_QUOTA_DEL_BLOCKS(inode->i_sb)); + handle = ext4_journal_start(inode, 2*EXT4_QUOTA_DEL_BLOCKS(inode->i_sb)); if (IS_ERR(handle)) return PTR_ERR(handle); ret = dquot_drop(inode); - err = ext3_journal_stop(handle); + err = ext4_journal_stop(handle); if (!ret) ret = err; return ret; } -static int ext3_write_dquot(struct dquot *dquot) +static int ext4_write_dquot(struct dquot *dquot) { int ret, err; handle_t *handle; struct inode *inode; inode = dquot_to_inode(dquot); - handle = ext3_journal_start(inode, - EXT3_QUOTA_TRANS_BLOCKS(dquot->dq_sb)); + handle = ext4_journal_start(inode, + EXT4_QUOTA_TRANS_BLOCKS(dquot->dq_sb)); if (IS_ERR(handle)) return PTR_ERR(handle); ret = dquot_commit(dquot); - err = ext3_journal_stop(handle); + err = ext4_journal_stop(handle); if (!ret) ret = err; return ret; } -static int ext3_acquire_dquot(struct dquot *dquot) +static int ext4_acquire_dquot(struct dquot *dquot) { int ret, err; handle_t *handle; - handle = ext3_journal_start(dquot_to_inode(dquot), - EXT3_QUOTA_INIT_BLOCKS(dquot->dq_sb)); + handle = ext4_journal_start(dquot_to_inode(dquot), + EXT4_QUOTA_INIT_BLOCKS(dquot->dq_sb)); if (IS_ERR(handle)) return PTR_ERR(handle); ret = dquot_acquire(dquot); - err = ext3_journal_stop(handle); + err = ext4_journal_stop(handle); if (!ret) ret = err; return ret; } -static int ext3_release_dquot(struct dquot *dquot) +static int ext4_release_dquot(struct dquot *dquot) { int ret, err; handle_t *handle; - handle = ext3_journal_start(dquot_to_inode(dquot), - EXT3_QUOTA_DEL_BLOCKS(dquot->dq_sb)); + handle = ext4_journal_start(dquot_to_inode(dquot), + EXT4_QUOTA_DEL_BLOCKS(dquot->dq_sb)); if (IS_ERR(handle)) return PTR_ERR(handle); ret = dquot_release(dquot); - err = ext3_journal_stop(handle); + err = ext4_journal_stop(handle); if (!ret) ret = err; return ret; } -static int ext3_mark_dquot_dirty(struct dquot *dquot) +static int ext4_mark_dquot_dirty(struct dquot *dquot) { /* Are we journalling quotas? */ - if (EXT3_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] || - EXT3_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) { + if (EXT4_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] || + EXT4_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) { dquot_mark_dquot_dirty(dquot); - return ext3_write_dquot(dquot); + return ext4_write_dquot(dquot); } else { return dquot_mark_dquot_dirty(dquot); } } -static int ext3_write_info(struct super_block *sb, int type) +static int ext4_write_info(struct super_block *sb, int type) { int ret, err; handle_t *handle; /* Data block + inode block */ - handle = ext3_journal_start(sb->s_root->d_inode, 2); + handle = ext4_journal_start(sb->s_root->d_inode, 2); if (IS_ERR(handle)) return PTR_ERR(handle); ret = dquot_commit_info(sb, type); - err = ext3_journal_stop(handle); + err = ext4_journal_stop(handle); if (!ret) ret = err; return ret; @@ -2565,16 +2565,16 @@ static int ext3_write_info(struct super_block *sb, int type) * Turn on quotas during mount time - we need to find * the quota file and such... */ -static int ext3_quota_on_mount(struct super_block *sb, int type) +static int ext4_quota_on_mount(struct super_block *sb, int type) { - return vfs_quota_on_mount(sb, EXT3_SB(sb)->s_qf_names[type], - EXT3_SB(sb)->s_jquota_fmt, type); + return vfs_quota_on_mount(sb, EXT4_SB(sb)->s_qf_names[type], + EXT4_SB(sb)->s_jquota_fmt, type); } /* * Standard function to be called on quota_on */ -static int ext3_quota_on(struct super_block *sb, int type, int format_id, +static int ext4_quota_on(struct super_block *sb, int type, int format_id, char *path) { int err; @@ -2583,8 +2583,8 @@ static int ext3_quota_on(struct super_block *sb, int type, int format_id, if (!test_opt(sb, QUOTA)) return -EINVAL; /* Not journalling quota? */ - if (!EXT3_SB(sb)->s_qf_names[USRQUOTA] && - !EXT3_SB(sb)->s_qf_names[GRPQUOTA]) + if (!EXT4_SB(sb)->s_qf_names[USRQUOTA] && + !EXT4_SB(sb)->s_qf_names[GRPQUOTA]) return vfs_quota_on(sb, type, format_id, path); err = path_lookup(path, LOOKUP_FOLLOW, &nd); if (err) @@ -2597,7 +2597,7 @@ static int ext3_quota_on(struct super_block *sb, int type, int format_id, /* Quotafile not of fs root? */ if (nd.dentry->d_parent->d_inode != sb->s_root->d_inode) printk(KERN_WARNING - "EXT3-fs: Quota file not on filesystem root. " + "EXT4-fs: Quota file not on filesystem root. " "Journalled quota will not work.\n"); path_release(&nd); return vfs_quota_on(sb, type, format_id, path); @@ -2607,11 +2607,11 @@ static int ext3_quota_on(struct super_block *sb, int type, int format_id, * acquiring the locks... As quota files are never truncated and quota code * itself serializes the operations (and noone else should touch the files) * we don't have to be afraid of races */ -static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data, +static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data, size_t len, loff_t off) { struct inode *inode = sb_dqopt(sb)->files[type]; - sector_t blk = off >> EXT3_BLOCK_SIZE_BITS(sb); + sector_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb); int err = 0; int offset = off & (sb->s_blocksize - 1); int tocopy; @@ -2627,7 +2627,7 @@ static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data, while (toread > 0) { tocopy = sb->s_blocksize - offset < toread ? sb->s_blocksize - offset : toread; - bh = ext3_bread(NULL, inode, blk, 0, &err); + bh = ext4_bread(NULL, inode, blk, 0, &err); if (err) return err; if (!bh) /* A hole? */ @@ -2645,15 +2645,15 @@ static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data, /* Write to quotafile (we know the transaction is already started and has * enough credits) */ -static ssize_t ext3_quota_write(struct super_block *sb, int type, +static ssize_t ext4_quota_write(struct super_block *sb, int type, const char *data, size_t len, loff_t off) { struct inode *inode = sb_dqopt(sb)->files[type]; - sector_t blk = off >> EXT3_BLOCK_SIZE_BITS(sb); + sector_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb); int err = 0; int offset = off & (sb->s_blocksize - 1); int tocopy; - int journal_quota = EXT3_SB(sb)->s_qf_names[type] != NULL; + int journal_quota = EXT4_SB(sb)->s_qf_names[type] != NULL; size_t towrite = len; struct buffer_head *bh; handle_t *handle = journal_current_handle(); @@ -2662,11 +2662,11 @@ static ssize_t ext3_quota_write(struct super_block *sb, int type, while (towrite > 0) { tocopy = sb->s_blocksize - offset < towrite ? sb->s_blocksize - offset : towrite; - bh = ext3_bread(handle, inode, blk, 1, &err); + bh = ext4_bread(handle, inode, blk, 1, &err); if (!bh) goto out; if (journal_quota) { - err = ext3_journal_get_write_access(handle, bh); + err = ext4_journal_get_write_access(handle, bh); if (err) { brelse(bh); goto out; @@ -2677,10 +2677,10 @@ static ssize_t ext3_quota_write(struct super_block *sb, int type, flush_dcache_page(bh->b_page); unlock_buffer(bh); if (journal_quota) - err = ext3_journal_dirty_metadata(handle, bh); + err = ext4_journal_dirty_metadata(handle, bh); else { /* Always do at least ordered writes for quotas */ - err = ext3_journal_dirty_data(handle, bh); + err = ext4_journal_dirty_data(handle, bh); mark_buffer_dirty(bh); } brelse(bh); @@ -2696,59 +2696,59 @@ out: return err; if (inode->i_size < off+len-towrite) { i_size_write(inode, off+len-towrite); - EXT3_I(inode)->i_disksize = inode->i_size; + EXT4_I(inode)->i_disksize = inode->i_size; } inode->i_version++; inode->i_mtime = inode->i_ctime = CURRENT_TIME; - ext3_mark_inode_dirty(handle, inode); + ext4_mark_inode_dirty(handle, inode); mutex_unlock(&inode->i_mutex); return len - towrite; } #endif -static int ext3_get_sb(struct file_system_type *fs_type, +static int ext4_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_bdev(fs_type, flags, dev_name, data, ext3_fill_super, mnt); + return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super, mnt); } -static struct file_system_type ext3_fs_type = { +static struct file_system_type ext4dev_fs_type = { .owner = THIS_MODULE, - .name = "ext3", - .get_sb = ext3_get_sb, + .name = "ext4dev", + .get_sb = ext4_get_sb, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; -static int __init init_ext3_fs(void) +static int __init init_ext4_fs(void) { - int err = init_ext3_xattr(); + int err = init_ext4_xattr(); if (err) return err; err = init_inodecache(); if (err) goto out1; - err = register_filesystem(&ext3_fs_type); + err = register_filesystem(&ext4dev_fs_type); if (err) goto out; return 0; out: destroy_inodecache(); out1: - exit_ext3_xattr(); + exit_ext4_xattr(); return err; } -static void __exit exit_ext3_fs(void) +static void __exit exit_ext4_fs(void) { - unregister_filesystem(&ext3_fs_type); + unregister_filesystem(&ext4dev_fs_type); destroy_inodecache(); - exit_ext3_xattr(); + exit_ext4_xattr(); } MODULE_AUTHOR("Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others"); -MODULE_DESCRIPTION("Second Extended Filesystem with journaling extensions"); +MODULE_DESCRIPTION("Fourth Extended Filesystem with extents"); MODULE_LICENSE("GPL"); -module_init(init_ext3_fs) -module_exit(exit_ext3_fs) +module_init(init_ext4_fs) +module_exit(exit_ext4_fs) |