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8782a9aea3
Convert to struct mnt_idmap.
Last cycle we merged the necessary infrastructure in
256c8aed2b ("fs: introduce dedicated idmap type for mounts").
This is just the conversion to struct mnt_idmap.
Currently we still pass around the plain namespace that was attached to a
mount. This is in general pretty convenient but it makes it easy to
conflate namespaces that are relevant on the filesystem with namespaces
that are relevent on the mount level. Especially for non-vfs developers
without detailed knowledge in this area this can be a potential source for
bugs.
Once the conversion to struct mnt_idmap is done all helpers down to the
really low-level helpers will take a struct mnt_idmap argument instead of
two namespace arguments. This way it becomes impossible to conflate the two
eliminating the possibility of any bugs. All of the vfs and all filesystems
only operate on struct mnt_idmap.
Acked-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
41 lines
1.9 KiB
C
41 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) International Business Machines Corp., 2000-2001
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*/
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#ifndef _H_JFS_INODE
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#define _H_JFS_INODE
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struct fid;
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extern struct inode *ialloc(struct inode *, umode_t);
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extern int jfs_fsync(struct file *, loff_t, loff_t, int);
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extern int jfs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
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extern int jfs_fileattr_set(struct mnt_idmap *idmap,
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struct dentry *dentry, struct fileattr *fa);
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extern long jfs_ioctl(struct file *, unsigned int, unsigned long);
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extern struct inode *jfs_iget(struct super_block *, unsigned long);
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extern int jfs_commit_inode(struct inode *, int);
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extern int jfs_write_inode(struct inode *, struct writeback_control *);
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extern void jfs_evict_inode(struct inode *);
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extern void jfs_dirty_inode(struct inode *, int);
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extern void jfs_truncate(struct inode *);
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extern void jfs_truncate_nolock(struct inode *, loff_t);
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extern void jfs_free_zero_link(struct inode *);
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extern struct dentry *jfs_get_parent(struct dentry *dentry);
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extern struct dentry *jfs_fh_to_dentry(struct super_block *sb, struct fid *fid,
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int fh_len, int fh_type);
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extern struct dentry *jfs_fh_to_parent(struct super_block *sb, struct fid *fid,
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int fh_len, int fh_type);
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extern void jfs_set_inode_flags(struct inode *);
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extern int jfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
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extern int jfs_setattr(struct mnt_idmap *, struct dentry *, struct iattr *);
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extern const struct address_space_operations jfs_aops;
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extern const struct inode_operations jfs_dir_inode_operations;
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extern const struct file_operations jfs_dir_operations;
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extern const struct inode_operations jfs_file_inode_operations;
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extern const struct file_operations jfs_file_operations;
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extern const struct inode_operations jfs_symlink_inode_operations;
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extern const struct inode_operations jfs_fast_symlink_inode_operations;
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extern const struct dentry_operations jfs_ci_dentry_operations;
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#endif /* _H_JFS_INODE */
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