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insmntque1(): remove useless arguments

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Also remove once-used functions to clean up after failed insmntque1(),
which were destructor callbacks in previous life.

Reviewed by:	markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D34071
This commit is contained in:
Konstantin Belousov 2022-01-28 02:57:09 +02:00
parent 69ae5b9667
commit 66c5fbca77
7 changed files with 38 additions and 55 deletions
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21
sys/fs/devfs/devfs_vnops.c
View file

@ -507,18 +507,6 @@ devfs_allocv_drop_refs(int drop_dm_lock, struct devfs_mount *dmp,
return (not_found);
}
static void
devfs_insmntque_dtr(struct vnode *vp, struct devfs_dirent *de)
{
mtx_lock(&devfs_de_interlock);
vp->v_data = NULL;
de->de_vnode = NULL;
mtx_unlock(&devfs_de_interlock);
vgone(vp);
vput(vp);
}
/*
* devfs_allocv shall be entered with dmp->dm_lock held, and it drops
* it on return.
@ -615,9 +603,14 @@ loop:
vp->v_data = de;
de->de_vnode = vp;
mtx_unlock(&devfs_de_interlock);
error = insmntque1(vp, mp, NULL, NULL);
error = insmntque1(vp, mp);
if (error != 0) {
devfs_insmntque_dtr(vp, de);
mtx_lock(&devfs_de_interlock);
vp->v_data = NULL;
de->de_vnode = NULL;
mtx_unlock(&devfs_de_interlock);
vgone(vp);
vput(vp);
(void) devfs_allocv_drop_refs(1, dmp, de);
return (error);
}

2
sys/fs/fdescfs/fdesc_vnops.c
View file

@ -191,7 +191,7 @@ loop:
fd->fd_ix = ix;
if (ftype == Fdesc && fmp->flags & FMNT_LINRDLNKF)
vp->v_vflag |= VV_READLINK;
error = insmntque1(vp, mp, NULL, NULL);
error = insmntque1(vp, mp);
if (error != 0) {
vgone(vp);
vput(vp);

2
sys/fs/nullfs/null_subr.c
View file

@ -235,7 +235,7 @@ null_nodeget(struct mount *mp, struct vnode *lowervp, struct vnode **vpp)
vp->v_type = lowervp->v_type;
vp->v_data = xp;
vp->v_vnlock = lowervp->v_vnlock;
error = insmntque1(vp, mp, NULL, NULL);
error = insmntque1(vp, mp);
if (error != 0) {
vput(lowervp);
null_destroy_proto(vp, xp);

25
sys/fs/tmpfs/tmpfs_subr.c
View file

@ -822,21 +822,6 @@ tmpfs_destroy_vobject(struct vnode *vp, vm_object_t obj)
}
}
/*
* Need to clear v_object for insmntque failure.
*/
static void
tmpfs_insmntque_dtr(struct vnode *vp)
{
tmpfs_destroy_vobject(vp, vp->v_object);
vp->v_object = NULL;
vp->v_data = NULL;
vp->v_op = &dead_vnodeops;
vgone(vp);
vput(vp);
}
/*
* Allocates a new vnode for the node node or returns a new reference to
* an existing one if the node had already a vnode referencing it. The
@ -983,9 +968,15 @@ loop:
if (vp->v_type != VFIFO)
VN_LOCK_ASHARE(vp);
error = insmntque1(vp, mp, NULL, NULL);
error = insmntque1(vp, mp);
if (error != 0) {
tmpfs_insmntque_dtr(vp);
/* Need to clear v_object for insmntque failure. */
tmpfs_destroy_vobject(vp, vp->v_object);
vp->v_object = NULL;
vp->v_data = NULL;
vp->v_op = &dead_vnodeops;
vgone(vp);
vput(vp);
vp = NULL;
}

2
sys/fs/unionfs/union_subr.c
View file

@ -389,7 +389,7 @@ unionfs_nodeget(struct mount *mp, struct vnode *uppervp,
("%s: NULL dvp for non-root vp %p", __func__, vp));
vn_lock_pair(lowervp, false, uppervp, false);
error = insmntque1(vp, mp, NULL, NULL);
error = insmntque1(vp, mp);
if (error != 0) {
unionfs_nodeget_cleanup(vp, unp);
return (error);

38
sys/kern/vfs_subr.c
View file

@ -1934,22 +1934,8 @@ delmntque(struct vnode *vp)
MNT_IUNLOCK(mp);
}
static void
insmntque_stddtr(struct vnode *vp, void *dtr_arg)
{
vp->v_data = NULL;
vp->v_op = &dead_vnodeops;
vgone(vp);
vput(vp);
}
/*
* Insert into list of vnodes for the new mount point, if available.
*/
int
insmntque1(struct vnode *vp, struct mount *mp,
void (*dtr)(struct vnode *, void *), void *dtr_arg)
static int
insmntque1_int(struct vnode *vp, struct mount *mp, bool dtr)
{
KASSERT(vp->v_mount == NULL,
@ -1974,8 +1960,12 @@ insmntque1(struct vnode *vp, struct mount *mp,
(vp->v_vflag & VV_FORCEINSMQ) == 0) {
VI_UNLOCK(vp);
MNT_IUNLOCK(mp);
if (dtr != NULL)
dtr(vp, dtr_arg);
if (dtr) {
vp->v_data = NULL;
vp->v_op = &dead_vnodeops;
vgone(vp);
vput(vp);
}
return (EBUSY);
}
vp->v_mount = mp;
@ -1989,11 +1979,21 @@ insmntque1(struct vnode *vp, struct mount *mp,
return (0);
}
/*
* Insert into list of vnodes for the new mount point, if available.
* insmntque() reclaims the vnode on insertion failure, insmntque1()
* leaves handling of the vnode to the caller.
*/
int
insmntque(struct vnode *vp, struct mount *mp)
{
return (insmntque1_int(vp, mp, true));
}
return (insmntque1(vp, mp, insmntque_stddtr, NULL));
int
insmntque1(struct vnode *vp, struct mount *mp)
{
return (insmntque1_int(vp, mp, false));
}
/*

3
sys/sys/vnode.h
View file

@ -689,9 +689,8 @@ int getnewvnode(const char *tag, struct mount *mp, struct vop_vector *vops,
struct vnode **vpp);
void getnewvnode_reserve(void);
void getnewvnode_drop_reserve(void);
int insmntque1(struct vnode *vp, struct mount *mp,
void (*dtr)(struct vnode *, void *), void *dtr_arg);
int insmntque(struct vnode *vp, struct mount *mp);
int insmntque1(struct vnode *vp, struct mount *mp);
u_quad_t init_va_filerev(void);
int speedup_syncer(void);
int vn_vptocnp(struct vnode **vp, char *buf, size_t *buflen);