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efs: new export ops 

Trivial switch over to the new generic helpers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Neil Brown <neilb@suse.de>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig 2007-10-21 16:42:09 -07:00 committed by Linus Torvalds
parent 1b961ac05a
commit 05da080482
3 changed files with 27 additions and 18 deletions
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36
fs/efs/namei.c
View File

@ -10,6 +10,8 @@
#include <linux/string.h>
#include <linux/efs_fs.h>
#include <linux/smp_lock.h>
#include <linux/exportfs.h>
static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len) {
struct buffer_head *bh;
@ -75,13 +77,10 @@ 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)
static struct inode *efs_nfs_get_inode(struct super_block *sb, u64 ino,
u32 generation)
{
__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);
@ -91,20 +90,25 @@ struct dentry *efs_get_dentry(struct super_block *sb, void *vobjp)
if (is_bad_inode(inode) ||
(generation && inode->i_generation != generation)) {
result = ERR_PTR(-ESTALE);
goto out_iput;
iput(inode);
return ERR_PTR(-ESTALE);
}
result = d_alloc_anon(inode);
if (!result) {
result = ERR_PTR(-ENOMEM);
goto out_iput;
}
return result;
return inode;
}
out_iput:
iput(inode);
return result;
struct dentry *efs_fh_to_dentry(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type)
{
return generic_fh_to_dentry(sb, fid, fh_len, fh_type,
efs_nfs_get_inode);
}
struct dentry *efs_fh_to_parent(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type)
{
return generic_fh_to_parent(sb, fid, fh_len, fh_type,
efs_nfs_get_inode);
}
struct dentry *efs_get_parent(struct dentry *child)

3
fs/efs/super.c
View File

@ -114,7 +114,8 @@ static const struct super_operations efs_superblock_operations = {
};
static struct export_operations efs_export_ops = {
.get_dentry = efs_get_dentry,
.fh_to_dentry = efs_fh_to_dentry,
.fh_to_parent = efs_fh_to_parent,
.get_parent = efs_get_parent,
};

6
include/linux/efs_fs.h
View File

@ -35,6 +35,7 @@ static inline struct efs_sb_info *SUPER_INFO(struct super_block *sb)
}
struct statfs;
struct fid;
extern const struct inode_operations efs_dir_inode_operations;
extern const struct file_operations efs_dir_operations;
@ -45,7 +46,10 @@ 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_fh_to_dentry(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type);
extern struct dentry *efs_fh_to_parent(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type);
extern struct dentry *efs_get_parent(struct dentry *);
extern int efs_bmap(struct inode *, int);