diff options
Diffstat (limited to 'sys/fs/nfsserver/nfs_nfsdport.c')
| -rw-r--r-- | sys/fs/nfsserver/nfs_nfsdport.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/sys/fs/nfsserver/nfs_nfsdport.c b/sys/fs/nfsserver/nfs_nfsdport.c index 4b18cbb..beedfef 100644 --- a/sys/fs/nfsserver/nfs_nfsdport.c +++ b/sys/fs/nfsserver/nfs_nfsdport.c @@ -180,7 +180,7 @@ nfsvno_accchk(struct vnode *vp, accmode_t accmode, struct ucred *cred, return (ETXTBSY); } if (vpislocked == 0) - NFSVOPLOCK(vp, LK_EXCLUSIVE | LK_RETRY, p); + vn_lock(vp, LK_SHARED | LK_RETRY); /* * Should the override still be applied when ACLs are enabled? @@ -218,7 +218,7 @@ nfsvno_accchk(struct vnode *vp, accmode_t accmode, struct ucred *cred, } } if (vpislocked == 0) - NFSVOPUNLOCK(vp, 0, p); + VOP_UNLOCK(vp, 0); return (error); } @@ -1916,7 +1916,7 @@ again: if (refp == NULL) { if (usevget) r = VFS_VGET(vp->v_mount, - dp->d_fileno, LK_EXCLUSIVE, + dp->d_fileno, LK_SHARED, &nvp); else r = EOPNOTSUPP; @@ -1925,7 +1925,7 @@ again: usevget = 0; cn.cn_nameiop = LOOKUP; cn.cn_lkflags = - LK_EXCLUSIVE | + LK_SHARED | LK_RETRY; cn.cn_cred = nd->nd_cred; @@ -1941,7 +1941,7 @@ again: dp->d_name[1] == '.') cn.cn_flags |= ISDOTDOT; - if (vn_lock(vp, LK_EXCLUSIVE) + if (vn_lock(vp, LK_SHARED) != 0) { nd->nd_repstat = EPERM; break; @@ -2454,7 +2454,8 @@ nfsvno_checkexp(struct mount *mp, struct sockaddr *nam, struct nfsexstuff *exp, */ int nfsvno_fhtovp(struct mount *mp, fhandle_t *fhp, struct sockaddr *nam, - struct vnode **vpp, struct nfsexstuff *exp, struct ucred **credp) + int lktype, struct vnode **vpp, struct nfsexstuff *exp, + struct ucred **credp) { int i, error, *secflavors; @@ -2481,6 +2482,13 @@ nfsvno_fhtovp(struct mount *mp, fhandle_t *fhp, struct sockaddr *nam, exp->nes_secflavors[i] = secflavors[i]; } } + if (error == 0 && lktype == LK_SHARED) + /* + * It would be much better to pass lktype to VFS_FHTOVP(), + * but this will have to do until VFS_FHTOVP() has a lock + * type argument like VFS_VGET(). + */ + vn_lock(*vpp, LK_DOWNGRADE | LK_RETRY); return (error); } @@ -2518,7 +2526,7 @@ nfsvno_pathconf(struct vnode *vp, int flag, register_t *retf, * call VFS_LOCK_GIANT() */ void -nfsd_fhtovp(struct nfsrv_descript *nd, struct nfsrvfh *nfp, +nfsd_fhtovp(struct nfsrv_descript *nd, struct nfsrvfh *nfp, int lktype, struct vnode **vpp, struct nfsexstuff *exp, struct mount **mpp, int startwrite, struct thread *p) { @@ -2555,7 +2563,7 @@ nfsd_fhtovp(struct nfsrv_descript *nd, struct nfsrvfh *nfp, if (startwrite) vn_start_write(NULL, mpp, V_WAIT); - nd->nd_repstat = nfsvno_fhtovp(mp, fhp, nd->nd_nam, vpp, exp, + nd->nd_repstat = nfsvno_fhtovp(mp, fhp, nd->nd_nam, lktype, vpp, exp, &credanon); /* |
