/*
- * linux/fs/ext3/super.c
+ * linux/fs/ext4/super.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
#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>
#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.
* 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;
/* 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);
}
* 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;
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");
* 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
* 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);
}
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;
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";
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];
(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.
*
* 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 */
/*
* 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];
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;
}
/*
* 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;
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;
}
}
-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++)
*/
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);
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",
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];
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
#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,
};
#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 {
{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;
}
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;
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;
#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;
#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:
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;
}
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;
}
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;
}
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;
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;
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;
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;
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;
}
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:
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;
}
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;
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");
}
}
/* 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++)
{
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)
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)
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).
* 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;
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");
}
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;
}
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);
}
}
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
__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
#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 */
* 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,
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;
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);
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;
}
* 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;
}
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;
}
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;
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);
* 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;
}
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;
}
}
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);
}
* 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
* 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;
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;
* 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. */
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;
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;
}
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;
}
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;
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
* 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)) {
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)
* 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);
}
* 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);
}
* 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;
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.
* 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;
}
* 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);
}
}
* 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;
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;
}
* 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));
* 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;
}
}
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();
/*
* 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();
}
* 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);
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()
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;
* 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;
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)
/* 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);
* 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;
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? */
/* 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();
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;
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);
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)
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff