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Code Issues Releases Activity

Remove NFS4 vop method vector for devices: we are desupporing device nodes

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on anything but DEVFS and in this case it was not even used (see below).

Put the NFS4 vop method for fifo's behind "#if 0" because it is unused.
Add a XXX comment to say that I think the unusedness is a bug.
This commit is contained in:
Poul-Henning Kamp 2004-09-27 20:02:50 +00:00
parent e237071f1a
commit 52c55a26b1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=135862
2 changed files with 14 additions and 82 deletions
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93
sys/nfs4client/nfs4_vnops.c
View File

@ -126,12 +126,12 @@ __FBSDID("$FreeBSD$");
#define vfs_busy_pages(bp, f)
#endif
static int nfsspec_read(struct vop_read_args *);
static int nfsspec_write(struct vop_write_args *);
#if 0
static int nfsfifo_read(struct vop_read_args *);
static int nfsfifo_write(struct vop_write_args *);
static int nfsspec_close(struct vop_close_args *);
static int nfsfifo_close(struct vop_close_args *);
static int nfsspec_access(struct vop_access_args *);
#endif
static int nfs4_flush(struct vnode *, struct ucred *, int, struct thread *,
int);
static int nfs4_setattrrpc(struct vnode *, struct vattr *, struct ucred *,
@ -160,7 +160,6 @@ static int nfs4_lookitup(struct vnode *, const char *, int,
struct ucred *, struct thread *, struct nfsnode **);
static int nfs4_sillyrename(struct vnode *, struct vnode *,
struct componentname *);
static int nfsspec_access(struct vop_access_args *);
static int nfs4_readlink(struct vop_readlink_args *);
static int nfs4_print(struct vop_print_args *);
static int nfs4_advlock(struct vop_advlock_args *);
@ -204,27 +203,15 @@ static struct vnodeopv_desc nfs4_vnodeop_opv_desc =
{ &nfs4_vnodeop_p, nfs4_vnodeop_entries };
VNODEOP_SET(nfs4_vnodeop_opv_desc);
#if 0
/*
* Special device vnode ops
*
* XXX: I've commented this stuff out because it is unused. It is not clear
* XXX: however that it shouldn't be used: the current code applies the
* XXX: vector from sys/nfsclient and it would take some luck for that to
* XXX: work also in the NFS4 case I think /phk.
*/
vop_t **spec_nfs4nodeop_p;
static struct vnodeopv_entry_desc nfs4_specop_entries[] = {
{ &vop_default_desc, (vop_t *) spec_vnoperate },
{ &vop_access_desc, (vop_t *) nfsspec_access },
{ &vop_close_desc, (vop_t *) nfsspec_close },
{ &vop_fsync_desc, (vop_t *) nfs4_fsync },
{ &vop_getattr_desc, (vop_t *) nfs4_getattr },
{ &vop_inactive_desc, (vop_t *) nfs_inactive },
{ &vop_print_desc, (vop_t *) nfs4_print },
{ &vop_read_desc, (vop_t *) nfsspec_read },
{ &vop_reclaim_desc, (vop_t *) nfs_reclaim },
{ &vop_setattr_desc, (vop_t *) nfs4_setattr },
{ &vop_write_desc, (vop_t *) nfsspec_write },
{ NULL, NULL }
};
static struct vnodeopv_desc spec_nfs4nodeop_opv_desc =
{ &spec_nfs4nodeop_p, nfs4_specop_entries };
VNODEOP_SET(spec_nfs4nodeop_opv_desc);
vop_t **fifo_nfs4nodeop_p;
static struct vnodeopv_entry_desc nfs4_fifoop_entries[] = {
@ -244,6 +231,7 @@ static struct vnodeopv_entry_desc nfs4_fifoop_entries[] = {
static struct vnodeopv_desc fifo_nfs4nodeop_opv_desc =
{ &fifo_nfs4nodeop_p, nfs4_fifoop_entries };
VNODEOP_SET(fifo_nfs4nodeop_opv_desc);
#endif
static int nfs4_removerpc(struct vnode *dvp, const char *name, int namelen,
struct ucred *cred, struct thread *td);
@ -2994,6 +2982,7 @@ nfs4_writebp(struct buf *bp, int force __unused, struct thread *td)
return (0);
}
#if 0
/*
* nfs special file access vnode op.
* Essentially just get vattr and then imitate iaccess() since the device is
@ -3032,65 +3021,6 @@ nfsspec_access(struct vop_access_args *ap)
mode, cred, NULL));
}
/*
* Read wrapper for special devices.
*/
static int
nfsspec_read(struct vop_read_args *ap)
{
struct nfsnode *np = VTONFS(ap->a_vp);
/*
* Set access flag.
*/
np->n_flag |= NACC;
getnanotime(&np->n_atim);
return (VOCALL(spec_vnodeop_p, VOFFSET(vop_read), ap));
}
/*
* Write wrapper for special devices.
*/
static int
nfsspec_write(struct vop_write_args *ap)
{
struct nfsnode *np = VTONFS(ap->a_vp);
/*
* Set update flag.
*/
np->n_flag |= NUPD;
getnanotime(&np->n_mtim);
return (VOCALL(spec_vnodeop_p, VOFFSET(vop_write), ap));
}
/*
* Close wrapper for special devices.
*
* Update the times on the nfsnode then do device close.
*/
static int
nfsspec_close(struct vop_close_args *ap)
{
struct vnode *vp = ap->a_vp;
struct nfsnode *np = VTONFS(vp);
struct vattr vattr;
if (np->n_flag & (NACC | NUPD)) {
np->n_flag |= NCHG;
if (vrefcnt(vp) == 1 &&
(vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
VATTR_NULL(&vattr);
if (np->n_flag & NACC)
vattr.va_atime = np->n_atim;
if (np->n_flag & NUPD)
vattr.va_mtime = np->n_mtim;
(void)VOP_SETATTR(vp, &vattr, ap->a_cred, ap->a_td);
}
}
return (VOCALL(spec_vnodeop_p, VOFFSET(vop_close), ap));
}
/*
* Read wrapper for fifos.
*/
@ -3158,3 +3088,4 @@ nfsfifo_close(struct vop_close_args *ap)
return (VOCALL(fifo_vnodeop_p, VOFFSET(vop_close), ap));
}
#endif

3
sys/nfsclient/nfsnode.h
View File

@ -195,9 +195,10 @@ extern vop_t **fifo_nfsnodeop_p;
extern vop_t **nfs_vnodeop_p;
extern vop_t **spec_nfsnodeop_p;
#if 0
extern vop_t **fifo_nfs4nodeop_p;
#endif
extern vop_t **nfs4_vnodeop_p;
extern vop_t **spec_nfs4nodeop_p;
/*
* Prototypes for NFS vnode operations