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[XFS] cleanup fid types mess 

Currently XFs has three different fid types: struct fid, struct xfs_fid
and struct xfs_fid2 with hte latter two beeing identicaly and the first
one beeing the same size but an unstructured array with the same size.

This patch consolidates all this to alway uuse struct xfs_fid.

This patch is required for an upcoming patch series from me that revamps
the nfs exporting code and introduces a Linux-wide struct fid.

SGI-PV: 970336
SGI-Modid: xfs-linux-melb:xfs-kern:29651a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
hifive-unleashed-5.1
Christoph Hellwig 2007-09-14 15:22:37 +10:00 committed by Tim Shimmin
parent c8fcfac5a2
commit c6143911a7
8 changed files with 33 additions and 60 deletions
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6
fs/xfs/linux-2.6/xfs_export.c
View File

@ -54,8 +54,8 @@ xfs_fs_decode_fh(
struct dentry *de),
void *context)
{
xfs_fid2_t ifid;
xfs_fid2_t pfid;
xfs_fid_t ifid;
xfs_fid_t pfid;
void *parent = NULL;
int is64 = 0;
__u32 *p = fh;
@ -144,7 +144,7 @@ xfs_fs_get_dentry(
struct dentry *result;
int error;
error = xfs_vget(XFS_M(sb), &vp, (fid_t *)data);
error = xfs_vget(XFS_M(sb), &vp, data);
if (error || vp == NULL)
return ERR_PTR(-ESTALE) ;

6
fs/xfs/linux-2.6/xfs_export.h
View File

@ -71,13 +71,13 @@ xfs_fileid_length(int hasparent, int is64)
/*
* Decode encoded inode information (either for the inode itself
* or the parent) into an xfs_fid2_t structure. Advances and
* or the parent) into an xfs_fid_t structure. Advances and
* returns the new data pointer
*/
static inline __u32 *
xfs_fileid_decode_fid2(__u32 *p, xfs_fid2_t *fid, int is64)
xfs_fileid_decode_fid2(__u32 *p, xfs_fid_t *fid, int is64)
{
fid->fid_len = sizeof(xfs_fid2_t) - sizeof(fid->fid_len);
fid->fid_len = sizeof(xfs_fid_t) - sizeof(fid->fid_len);
fid->fid_pad = 0;
fid->fid_ino = *p++;
#if XFS_BIG_INUMS

24
fs/xfs/linux-2.6/xfs_ioctl.c
View File

@ -152,11 +152,11 @@ xfs_find_handle(
lock_mode = xfs_ilock_map_shared(ip);
/* fill in fid section of handle from inode */
handle.ha_fid.xfs_fid_len = sizeof(xfs_fid_t) -
sizeof(handle.ha_fid.xfs_fid_len);
handle.ha_fid.xfs_fid_pad = 0;
handle.ha_fid.xfs_fid_gen = ip->i_d.di_gen;
handle.ha_fid.xfs_fid_ino = ip->i_ino;
handle.ha_fid.fid_len = sizeof(xfs_fid_t) -
sizeof(handle.ha_fid.fid_len);
handle.ha_fid.fid_pad = 0;
handle.ha_fid.fid_gen = ip->i_d.di_gen;
handle.ha_fid.fid_ino = ip->i_ino;
xfs_iunlock_map_shared(ip, lock_mode);
@ -222,10 +222,10 @@ xfs_vget_fsop_handlereq(
if (hlen < sizeof(*handlep))
memset(((char *)handlep) + hlen, 0, sizeof(*handlep) - hlen);
if (hlen > sizeof(handlep->ha_fsid)) {
if (handlep->ha_fid.xfs_fid_len !=
(hlen - sizeof(handlep->ha_fsid)
- sizeof(handlep->ha_fid.xfs_fid_len))
|| handlep->ha_fid.xfs_fid_pad)
if (handlep->ha_fid.fid_len !=
(hlen - sizeof(handlep->ha_fsid) -
sizeof(handlep->ha_fid.fid_len)) ||
handlep->ha_fid.fid_pad)
return XFS_ERROR(EINVAL);
}
@ -233,9 +233,9 @@ xfs_vget_fsop_handlereq(
* Crack the handle, obtain the inode # & generation #
*/
xfid = (struct xfs_fid *)&handlep->ha_fid;
if (xfid->xfs_fid_len == sizeof(*xfid) - sizeof(xfid->xfs_fid_len)) {
ino = xfid->xfs_fid_ino;
igen = xfid->xfs_fid_gen;
if (xfid->fid_len == sizeof(*xfid) - sizeof(xfid->fid_len)) {
ino = xfid->fid_ino;
igen = xfid->fid_gen;
} else {
return XFS_ERROR(EINVAL);
}

29
fs/xfs/xfs_fs.h
View File

@ -389,30 +389,13 @@ typedef struct xfs_fsop_attrmulti_handlereq {
*/
typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */
#ifndef HAVE_FID
#define MAXFIDSZ 46
typedef struct fid {
__u16 fid_len; /* length of data in bytes */
unsigned char fid_data[MAXFIDSZ]; /* data (fid_len worth) */
} fid_t;
#endif
typedef struct xfs_fid {
__u16 xfs_fid_len; /* length of remainder */
__u16 xfs_fid_pad;
__u32 xfs_fid_gen; /* generation number */
__u64 xfs_fid_ino; /* 64 bits inode number */
__u16 fid_len; /* length of remainder */
__u16 fid_pad;
__u32 fid_gen; /* generation number */
__u64 fid_ino; /* 64 bits inode number */
} xfs_fid_t;
typedef struct xfs_fid2 {
__u16 fid_len; /* length of remainder */
__u16 fid_pad; /* padding, must be zero */
__u32 fid_gen; /* generation number */
__u64 fid_ino; /* inode number */
} xfs_fid2_t;
typedef struct xfs_handle {
union {
__s64 align; /* force alignment of ha_fid */
@ -422,9 +405,9 @@ typedef struct xfs_handle {
} xfs_handle_t;
#define ha_fsid ha_u._ha_fsid
#define XFS_HSIZE(handle) (((char *) &(handle).ha_fid.xfs_fid_pad \
#define XFS_HSIZE(handle) (((char *) &(handle).ha_fid.fid_pad \
- (char *) &(handle)) \
+ (handle).ha_fid.xfs_fid_len)
+ (handle).ha_fid.fid_len)
/*
* Flags for going down operation

9
fs/xfs/xfs_vfsops.c
View File

@ -1635,9 +1635,8 @@ int
xfs_vget(
xfs_mount_t *mp,
bhv_vnode_t **vpp,
fid_t *fidp)
xfs_fid_t *xfid)
{
xfs_fid_t *xfid = (struct xfs_fid *)fidp;
xfs_inode_t *ip;
int error;
xfs_ino_t ino;
@ -1647,11 +1646,11 @@ xfs_vget(
* Invalid. Since handles can be created in user space and passed in
* via gethandle(), this is not cause for a panic.
*/
if (xfid->xfs_fid_len != sizeof(*xfid) - sizeof(xfid->xfs_fid_len))
if (xfid->fid_len != sizeof(*xfid) - sizeof(xfid->fid_len))
return XFS_ERROR(EINVAL);
ino = xfid->xfs_fid_ino;
igen = xfid->xfs_fid_gen;
ino = xfid->fid_ino;
igen = xfid->fid_gen;
/*
* NFS can sometimes send requests for ino 0. Fail them gracefully.

4
fs/xfs/xfs_vfsops.h
View File

@ -2,7 +2,7 @@
#define _XFS_VFSOPS_H 1
struct cred;
struct fid;
struct xfs_fid;
struct inode;
struct kstatfs;
struct xfs_mount;
@ -17,7 +17,7 @@ int xfs_root(struct xfs_mount *mp, bhv_vnode_t **vpp);
int xfs_statvfs(struct xfs_mount *mp, struct kstatfs *statp,
bhv_vnode_t *vp);
int xfs_sync(struct xfs_mount *mp, int flags);
int xfs_vget(struct xfs_mount *mp, bhv_vnode_t **vpp, struct fid *fidp);
int xfs_vget(struct xfs_mount *mp, bhv_vnode_t **vpp, struct xfs_fid *xfid);
int xfs_parseargs(struct xfs_mount *mp, char *options,
struct xfs_mount_args *args, int update);
int xfs_showargs(struct xfs_mount *mp, struct seq_file *m);

13
fs/xfs/xfs_vnodeops.c
View File

@ -3466,23 +3466,14 @@ std_return:
}
/*
* xfs_fid2
*
* A fid routine that takes a pointer to a previously allocated
* fid structure (like xfs_fast_fid) but uses a 64 bit inode number.
*/
int
xfs_fid2(
xfs_inode_t *ip,
fid_t *fidp)
xfs_fid_t *xfid)
{
xfs_fid2_t *xfid = (xfs_fid2_t *)fidp;
vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
ASSERT(sizeof(fid_t) >= sizeof(xfs_fid2_t));
xfid->fid_len = sizeof(xfs_fid2_t) - sizeof(xfid->fid_len);
xfid->fid_len = sizeof(xfs_fid_t) - sizeof(xfid->fid_len);
xfid->fid_pad = 0;
/*
* use memcpy because the inode is a long long and there's no

2
fs/xfs/xfs_vnodeops.h
View File

@ -39,7 +39,7 @@ int xfs_readdir(struct xfs_inode *dp, void *dirent, size_t bufsize,
int xfs_symlink(struct xfs_inode *dp, bhv_vname_t *dentry,
char *target_path, mode_t mode, bhv_vnode_t **vpp,
struct cred *credp);
int xfs_fid2(struct xfs_inode *ip, fid_t *fidp);
int xfs_fid2(struct xfs_inode *ip, struct xfs_fid *xfid);
int xfs_rwlock(struct xfs_inode *ip, bhv_vrwlock_t locktype);
void xfs_rwunlock(struct xfs_inode *ip, bhv_vrwlock_t locktype);
int xfs_inode_flush(struct xfs_inode *ip, int flags);