5ca2960733
When the exportfs interface was added the expectation was that filesystems provide an operation to convert from a file handle to an inode/dentry, but it kept a backwards compat option that still calls into iget. Calling into iget from non-filesystem code is very bad, because it gives too little information to filesystem, and simply crashes if the filesystem doesn't implement the ->read_inode routine. Fortunately there are only two filesystems left using this fallback: efs and jfs. This patch moves a copy of export_iget to each of those to implement the get_dentry method. While this is a temporary increase of lines of code in the kernel it allows for a much cleaner interface and important code restructuring in later patches. [akpm@linux-foundation.org: add jfs_get_inode_flags() declaration] Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
46 lines
2.2 KiB
C
46 lines
2.2 KiB
C
/*
|
|
* Copyright (C) International Business Machines Corp., 2000-2001
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
|
|
* the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
#ifndef _H_JFS_INODE
|
|
#define _H_JFS_INODE
|
|
|
|
extern struct inode *ialloc(struct inode *, umode_t);
|
|
extern int jfs_fsync(struct file *, struct dentry *, int);
|
|
extern int jfs_ioctl(struct inode *, struct file *,
|
|
unsigned int, unsigned long);
|
|
extern void jfs_read_inode(struct inode *);
|
|
extern int jfs_commit_inode(struct inode *, int);
|
|
extern int jfs_write_inode(struct inode*, int);
|
|
extern void jfs_delete_inode(struct inode *);
|
|
extern void jfs_dirty_inode(struct inode *);
|
|
extern void jfs_truncate(struct inode *);
|
|
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);
|
|
|
|
extern const struct address_space_operations jfs_aops;
|
|
extern const struct inode_operations jfs_dir_inode_operations;
|
|
extern const struct file_operations jfs_dir_operations;
|
|
extern const struct inode_operations jfs_file_inode_operations;
|
|
extern const struct file_operations jfs_file_operations;
|
|
extern const struct inode_operations jfs_symlink_inode_operations;
|
|
extern struct dentry_operations jfs_ci_dentry_operations;
|
|
#endif /* _H_JFS_INODE */
|