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reiserfs: new export ops

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Another nice little cleanup by using the new methods.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Neil Brown <neilb@suse.de>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Chris Mason <mason@suse.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: "Vladimir V. Saveliev" <vs@namesys.com>
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 16:42:13 -07:00 committed by Linus Torvalds
parent 480b116c98
commit be55caf177
3 changed files with 35 additions and 43 deletions
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62
fs/reiserfs/inode.c
View File

@ -1515,19 +1515,20 @@ struct inode *reiserfs_iget(struct super_block *s, const struct cpu_key *key)
return inode;
}
struct dentry *reiserfs_get_dentry(struct super_block *sb, void *vobjp)
static struct dentry *reiserfs_get_dentry(struct super_block *sb,
u32 objectid, u32 dir_id, u32 generation)
{
__u32 *data = vobjp;
struct cpu_key key;
struct dentry *result;
struct inode *inode;
key.on_disk_key.k_objectid = data[0];
key.on_disk_key.k_dir_id = data[1];
key.on_disk_key.k_objectid = objectid;
key.on_disk_key.k_dir_id = dir_id;
reiserfs_write_lock(sb);
inode = reiserfs_iget(sb, &key);
if (inode && !IS_ERR(inode) && data[2] != 0 &&
data[2] != inode->i_generation) {
if (inode && !IS_ERR(inode) && generation != 0 &&
generation != inode->i_generation) {
iput(inode);
inode = NULL;
}
@ -1544,14 +1545,9 @@ struct dentry *reiserfs_get_dentry(struct super_block *sb, void *vobjp)
return result;
}
struct dentry *reiserfs_decode_fh(struct super_block *sb, __u32 * data,
int len, int fhtype,
int (*acceptable) (void *contect,
struct dentry * de),
void *context)
struct dentry *reiserfs_fh_to_dentry(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type)
{
__u32 obj[3], parent[3];
/* fhtype happens to reflect the number of u32s encoded.
* due to a bug in earlier code, fhtype might indicate there
* are more u32s then actually fitted.
@ -1564,32 +1560,28 @@ struct dentry *reiserfs_decode_fh(struct super_block *sb, __u32 * data,
* 6 - as above plus generation of directory
* 6 does not fit in NFSv2 handles
*/
if (fhtype > len) {
if (fhtype != 6 || len != 5)
if (fh_type > fh_len) {
if (fh_type != 6 || fh_len != 5)
reiserfs_warning(sb,
"nfsd/reiserfs, fhtype=%d, len=%d - odd",
fhtype, len);
fhtype = 5;
"nfsd/reiserfs, fhtype=%d, len=%d - odd",
fh_type, fh_len);
fh_type = 5;
}
obj[0] = data[0];
obj[1] = data[1];
if (fhtype == 3 || fhtype >= 5)
obj[2] = data[2];
else
obj[2] = 0; /* generation number */
return reiserfs_get_dentry(sb, fid->raw[0], fid->raw[1],
(fh_type == 3 || fh_type >= 5) ? fid->raw[2] : 0);
}
if (fhtype >= 4) {
parent[0] = data[fhtype >= 5 ? 3 : 2];
parent[1] = data[fhtype >= 5 ? 4 : 3];
if (fhtype == 6)
parent[2] = data[5];
else
parent[2] = 0;
}
return sb->s_export_op->find_exported_dentry(sb, obj,
fhtype < 4 ? NULL : parent,
acceptable, context);
struct dentry *reiserfs_fh_to_parent(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type)
{
if (fh_type < 4)
return NULL;
return reiserfs_get_dentry(sb,
(fh_type >= 5) ? fid->raw[3] : fid->raw[2],
(fh_type >= 5) ? fid->raw[4] : fid->raw[3],
(fh_type == 6) ? fid->raw[5] : 0);
}
int reiserfs_encode_fh(struct dentry *dentry, __u32 * data, int *lenp,

4
fs/reiserfs/super.c
View File

@ -663,9 +663,9 @@ static struct quotactl_ops reiserfs_qctl_operations = {
static struct export_operations reiserfs_export_ops = {
.encode_fh = reiserfs_encode_fh,
.decode_fh = reiserfs_decode_fh,
.fh_to_dentry = reiserfs_fh_to_dentry,
.fh_to_parent = reiserfs_fh_to_parent,
.get_parent = reiserfs_get_parent,
.get_dentry = reiserfs_get_dentry,
};
/* this struct is used in reiserfs_getopt () for containing the value for those

12
include/linux/reiserfs_fs.h
View File

@ -28,6 +28,8 @@
#include <linux/reiserfs_fs_sb.h>
#endif
struct fid;
/*
* include/linux/reiser_fs.h
*
@ -1877,12 +1879,10 @@ void reiserfs_delete_inode(struct inode *inode);
int reiserfs_write_inode(struct inode *inode, int);
int reiserfs_get_block(struct inode *inode, sector_t block,
struct buffer_head *bh_result, int create);
struct dentry *reiserfs_get_dentry(struct super_block *, void *);
struct dentry *reiserfs_decode_fh(struct super_block *sb, __u32 * data,
int len, int fhtype,
int (*acceptable) (void *contect,
struct dentry * de),
void *context);
struct dentry *reiserfs_fh_to_dentry(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type);
struct dentry *reiserfs_fh_to_parent(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type);
int reiserfs_encode_fh(struct dentry *dentry, __u32 * data, int *lenp,
int connectable);