diff options
| -rw-r--r-- | fs/efs/inode.c | 25 | ||||
| -rw-r--r-- | fs/efs/namei.c | 23 | ||||
| -rw-r--r-- | fs/efs/super.c | 16 | ||||
| -rw-r--r-- | include/linux/efs_fs.h | 2 |
4 files changed, 41 insertions, 25 deletions
diff --git a/fs/efs/inode.c b/fs/efs/inode.c index 174696f..627c302 100644 --- a/fs/efs/inode.c +++ b/fs/efs/inode.c @@ -45,17 +45,26 @@ static inline void extent_copy(efs_extent *src, efs_extent *dst) { return; } -void efs_read_inode(struct inode *inode) +struct inode *efs_iget(struct super_block *super, unsigned long ino) { int i, inode_index; dev_t device; u32 rdev; struct buffer_head *bh; - struct efs_sb_info *sb = SUPER_INFO(inode->i_sb); - struct efs_inode_info *in = INODE_INFO(inode); + struct efs_sb_info *sb = SUPER_INFO(super); + struct efs_inode_info *in; efs_block_t block, offset; struct efs_dinode *efs_inode; - + struct inode *inode; + + inode = iget_locked(super, ino); + if (IS_ERR(inode)) + return ERR_PTR(-ENOMEM); + if (!(inode->i_state & I_NEW)) + return inode; + + in = INODE_INFO(inode); + /* ** EFS layout: ** @@ -159,13 +168,13 @@ void efs_read_inode(struct inode *inode) break; } - return; + unlock_new_inode(inode); + return inode; read_inode_error: printk(KERN_WARNING "EFS: failed to read inode %lu\n", inode->i_ino); - make_bad_inode(inode); - - return; + iget_failed(inode); + return ERR_PTR(-EIO); } static inline efs_block_t diff --git a/fs/efs/namei.c b/fs/efs/namei.c index f7f4070..e267047 100644 --- a/fs/efs/namei.c +++ b/fs/efs/namei.c @@ -66,9 +66,10 @@ struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, struct namei lock_kernel(); inodenum = efs_find_entry(dir, dentry->d_name.name, dentry->d_name.len); if (inodenum) { - if (!(inode = iget(dir->i_sb, inodenum))) { + inode = efs_iget(dir->i_sb, inodenum); + if (IS_ERR(inode)) { unlock_kernel(); - return ERR_PTR(-EACCES); + return ERR_CAST(inode); } } unlock_kernel(); @@ -84,12 +85,11 @@ static struct inode *efs_nfs_get_inode(struct super_block *sb, u64 ino, if (ino == 0) return ERR_PTR(-ESTALE); - inode = iget(sb, ino); - if (inode == NULL) - return ERR_PTR(-ENOMEM); + inode = efs_iget(sb, ino); + if (IS_ERR(inode)) + return ERR_CAST(inode); - if (is_bad_inode(inode) || - (generation && inode->i_generation != generation)) { + if (generation && inode->i_generation != generation) { iput(inode); return ERR_PTR(-ESTALE); } @@ -116,7 +116,7 @@ struct dentry *efs_get_parent(struct dentry *child) struct dentry *parent; struct inode *inode; efs_ino_t ino; - int error; + long error; lock_kernel(); @@ -125,10 +125,11 @@ struct dentry *efs_get_parent(struct dentry *child) if (!ino) goto fail; - error = -EACCES; - inode = iget(child->d_inode->i_sb, ino); - if (!inode) + inode = efs_iget(child->d_inode->i_sb, ino); + if (IS_ERR(inode)) { + error = PTR_ERR(inode); goto fail; + } error = -ENOMEM; parent = d_alloc_anon(inode); diff --git a/fs/efs/super.c b/fs/efs/super.c index c79bc62..1408240 100644 --- a/fs/efs/super.c +++ b/fs/efs/super.c @@ -107,7 +107,6 @@ static int efs_remount(struct super_block *sb, int *flags, char *data) static const struct super_operations efs_superblock_operations = { .alloc_inode = efs_alloc_inode, .destroy_inode = efs_destroy_inode, - .read_inode = efs_read_inode, .put_super = efs_put_super, .statfs = efs_statfs, .remount_fs = efs_remount, @@ -247,6 +246,7 @@ static int efs_fill_super(struct super_block *s, void *d, int silent) struct efs_sb_info *sb; struct buffer_head *bh; struct inode *root; + int ret = -EINVAL; sb = kzalloc(sizeof(struct efs_sb_info), GFP_KERNEL); if (!sb) @@ -303,12 +303,18 @@ static int efs_fill_super(struct super_block *s, void *d, int silent) } s->s_op = &efs_superblock_operations; s->s_export_op = &efs_export_ops; - root = iget(s, EFS_ROOTINODE); + root = efs_iget(s, EFS_ROOTINODE); + if (IS_ERR(root)) { + printk(KERN_ERR "EFS: get root inode failed\n"); + ret = PTR_ERR(root); + goto out_no_fs; + } + s->s_root = d_alloc_root(root); - if (!(s->s_root)) { - printk(KERN_ERR "EFS: get root inode failed\n"); + printk(KERN_ERR "EFS: get root dentry failed\n"); iput(root); + ret = -ENOMEM; goto out_no_fs; } @@ -318,7 +324,7 @@ out_no_fs_ul: out_no_fs: s->s_fs_info = NULL; kfree(sb); - return -EINVAL; + return ret; } static int efs_statfs(struct dentry *dentry, struct kstatfs *buf) { diff --git a/include/linux/efs_fs.h b/include/linux/efs_fs.h index dd57fe5..a695d63 100644 --- a/include/linux/efs_fs.h +++ b/include/linux/efs_fs.h @@ -41,7 +41,7 @@ extern const struct inode_operations efs_dir_inode_operations; extern const struct file_operations efs_dir_operations; extern const struct address_space_operations efs_symlink_aops; -extern void efs_read_inode(struct inode *); +extern struct inode *efs_iget(struct super_block *, unsigned long); extern efs_block_t efs_map_block(struct inode *, efs_block_t); extern int efs_get_block(struct inode *, sector_t, struct buffer_head *, int); |
