diff --git a/fs/efs/namei.c b/fs/efs/namei.c index ed4a207fe22a4e6d822e019db3c6a1bc05356a96..5276b19423c1abeda0ccd20cc0b0f0f99fc0d1eb 100644 --- a/fs/efs/namei.c +++ b/fs/efs/namei.c @@ -75,6 +75,38 @@ struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, struct namei return NULL; } +struct dentry *efs_get_dentry(struct super_block *sb, void *vobjp) +{ + __u32 *objp = vobjp; + unsigned long ino = objp[0]; + __u32 generation = objp[1]; + struct inode *inode; + struct dentry *result; + + if (ino == 0) + return ERR_PTR(-ESTALE); + inode = iget(sb, ino); + if (inode == NULL) + return ERR_PTR(-ENOMEM); + + if (is_bad_inode(inode) || + (generation && inode->i_generation != generation)) { + result = ERR_PTR(-ESTALE); + goto out_iput; + } + + result = d_alloc_anon(inode); + if (!result) { + result = ERR_PTR(-ENOMEM); + goto out_iput; + } + return result; + + out_iput: + iput(inode); + return result; +} + struct dentry *efs_get_parent(struct dentry *child) { struct dentry *parent; diff --git a/fs/efs/super.c b/fs/efs/super.c index 67338d622f56c315e771cf040f7c8e6ff4736282..d360c81f3a729b7a282ef5da9a99fe65ffb43335 100644 --- a/fs/efs/super.c +++ b/fs/efs/super.c @@ -114,6 +114,7 @@ static const struct super_operations efs_superblock_operations = { }; static struct export_operations efs_export_ops = { + .get_dentry = efs_get_dentry, .get_parent = efs_get_parent, }; diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c index 16287af34859689768f3ac9a22ea734e103fede7..dd132bb7b8f8c12917962bf503406cb3a5b48cd1 100644 --- a/fs/exportfs/expfs.c +++ b/fs/exportfs/expfs.c @@ -391,61 +391,11 @@ static int get_name(struct dentry *dentry, char *name, return error; } - -static struct dentry *export_iget(struct super_block *sb, unsigned long ino, __u32 generation) +static struct dentry *get_dentry(struct super_block *sb, void *vobjp) { - - /* iget isn't really right if the inode is currently unallocated!! - * This should really all be done inside each filesystem - * - * ext2fs' read_inode has been strengthed to return a bad_inode if - * the inode had been deleted. - * - * Currently we don't know the generation for parent directory, so - * a generation of 0 means "accept any" - */ - struct inode *inode; - struct dentry *result; - if (ino == 0) - return ERR_PTR(-ESTALE); - inode = iget(sb, ino); - if (inode == NULL) - return ERR_PTR(-ENOMEM); - if (is_bad_inode(inode) - || (generation && inode->i_generation != generation) - ) { - /* we didn't find the right inode.. */ - dprintk("fh_verify: Inode %lu, Bad count: %d %d or version %u %u\n", - inode->i_ino, - inode->i_nlink, atomic_read(&inode->i_count), - inode->i_generation, - generation); - - iput(inode); - return ERR_PTR(-ESTALE); - } - /* now to find a dentry. - * If possible, get a well-connected one - */ - result = d_alloc_anon(inode); - if (!result) { - iput(inode); - return ERR_PTR(-ENOMEM); - } - return result; + return ERR_PTR(-ESTALE); } - -static struct dentry *get_object(struct super_block *sb, void *vobjp) -{ - __u32 *objp = vobjp; - unsigned long ino = objp[0]; - __u32 generation = objp[1]; - - return export_iget(sb, ino, generation); -} - - /** * export_encode_fh - default export_operations->encode_fh function * @dentry: the dentry to encode @@ -524,7 +474,7 @@ struct export_operations export_op_default = { .get_name = get_name, .get_parent = get_parent, - .get_dentry = get_object, + .get_dentry = get_dentry, }; EXPORT_SYMBOL(export_op_default); diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h index 2374b595f2e1c6e70926c114058381b354e25cf6..f0ec72b263f1f4f8e852aeb91d6a201de316b5ed 100644 --- a/fs/jfs/jfs_inode.h +++ b/fs/jfs/jfs_inode.h @@ -32,6 +32,7 @@ extern void jfs_truncate_nolock(struct inode *, loff_t); extern void jfs_free_zero_link(struct inode *); extern struct dentry *jfs_get_parent(struct dentry *dentry); extern void jfs_get_inode_flags(struct jfs_inode_info *); +extern struct dentry *jfs_get_dentry(struct super_block *sb, void *vobjp); extern void jfs_set_inode_flags(struct inode *); extern int jfs_get_block(struct inode *, sector_t, struct buffer_head *, int); diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c index 25161c4121e4ba4f677bd1ed73abc8dcbc003d3d..932797ba433b0b5d2ac1a4c06f122564990049d0 100644 --- a/fs/jfs/namei.c +++ b/fs/jfs/namei.c @@ -1477,6 +1477,38 @@ static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struc return dentry; } +struct dentry *jfs_get_dentry(struct super_block *sb, void *vobjp) +{ + __u32 *objp = vobjp; + unsigned long ino = objp[0]; + __u32 generation = objp[1]; + struct inode *inode; + struct dentry *result; + + if (ino == 0) + return ERR_PTR(-ESTALE); + inode = iget(sb, ino); + if (inode == NULL) + return ERR_PTR(-ENOMEM); + + if (is_bad_inode(inode) || + (generation && inode->i_generation != generation)) { + result = ERR_PTR(-ESTALE); + goto out_iput; + } + + result = d_alloc_anon(inode); + if (!result) { + result = ERR_PTR(-ENOMEM); + goto out_iput; + } + return result; + + out_iput: + iput(inode); + return result; +} + struct dentry *jfs_get_parent(struct dentry *dentry) { struct super_block *sb = dentry->d_inode->i_sb; diff --git a/fs/jfs/super.c b/fs/jfs/super.c index 49b652bd96baeb08217a15821e6814692a1bed37..929fceca7999bb643db1d07fec125d154ad87199 100644 --- a/fs/jfs/super.c +++ b/fs/jfs/super.c @@ -738,6 +738,7 @@ static const struct super_operations jfs_super_operations = { }; static struct export_operations jfs_export_operations = { + .get_dentry = jfs_get_dentry, .get_parent = jfs_get_parent, }; diff --git a/include/linux/efs_fs.h b/include/linux/efs_fs.h index dfed8009ebff4913621ec00a8bbabb47af5f3d19..16cb25cbf7c563eef970be145403a51ed3fa6933 100644 --- a/include/linux/efs_fs.h +++ b/include/linux/efs_fs.h @@ -45,6 +45,7 @@ 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); extern struct dentry *efs_lookup(struct inode *, struct dentry *, struct nameidata *); +extern struct dentry *efs_get_dentry(struct super_block *sb, void *vobjp); extern struct dentry *efs_get_parent(struct dentry *); extern int efs_bmap(struct inode *, int);