bsd/vfs/kpi_vfs.c

221 VFS_MOUNT(mount_t mp, vnode_t devvp, user_addr_t data, vfs_context_t ctx)
229 	if ((mp == dead_mountp) || (mp->mnt_op->vfs_mount == 0))
233 	thread_safe = (mp->mnt_vtable->vfc_vfsflags & VFC_VFSTHREADSAFE);
240 		if (vfs_64bitready(mp)) {
241 			error = (*mp->mnt_op->vfs_mount)(mp, devvp, data, ctx);
248 		error = (*mp->mnt_op->vfs_mount)(mp, devvp, data, ctx);
261 VFS_START(mount_t mp, int flags, vfs_context_t ctx)
269 	if ((mp == dead_mountp) || (mp->mnt_op->vfs_start == 0))
273 	thread_safe = (mp->mnt_vtable->vfc_vfsflags & VFC_VFSTHREADSAFE);
279 	error = (*mp->mnt_op->vfs_start)(mp, flags, ctx);
291 VFS_UNMOUNT(mount_t mp, int flags, vfs_context_t ctx)
299 	if ((mp == dead_mountp) || (mp->mnt_op->vfs_unmount == 0))
303 	thread_safe = (mp->mnt_vtable->vfc_vfsflags & VFC_VFSTHREADSAFE);
309 	error = (*mp->mnt_op->vfs_unmount)(mp, flags, ctx);
338 VFS_ROOT(mount_t mp, struct vnode  ** vpp, vfs_context_t ctx)
346 	if ((mp == dead_mountp) || (mp->mnt_op->vfs_root == 0))
354 	thread_safe = (mp->mnt_vtable->vfc_vfsflags & VFC_VFSTHREADSAFE);
360 	error = (*mp->mnt_op->vfs_root)(mp, vpp, ctx);
372 VFS_QUOTACTL(mount_t mp, int cmd, uid_t uid, caddr_t datap, vfs_context_t ctx)
380 	if ((mp == dead_mountp) || (mp->mnt_op->vfs_quotactl == 0))
384 	thread_safe = (mp->mnt_vtable->vfc_vfsflags & VFC_VFSTHREADSAFE);
390 	error = (*mp->mnt_op->vfs_quotactl)(mp, cmd, uid, datap, ctx);
402 VFS_GETATTR(mount_t mp, struct vfs_attr *vfa, vfs_context_t ctx)
410 	if ((mp == dead_mountp) || (mp->mnt_op->vfs_getattr == 0))
418 	thread_safe = (mp->mnt_vtable->vfc_vfsflags & VFC_VFSTHREADSAFE);
424 	error = (*mp->mnt_op->vfs_getattr)(mp, vfa, ctx);
436 VFS_SETATTR(mount_t mp, struct vfs_attr *vfa, vfs_context_t ctx)
444 	if ((mp == dead_mountp) || (mp->mnt_op->vfs_setattr == 0))
452 	thread_safe = (mp->mnt_vtable->vfc_vfsflags & VFC_VFSTHREADSAFE);
458 	error = (*mp->mnt_op->vfs_setattr)(mp, vfa, ctx);
470 VFS_SYNC(mount_t mp, int flags, vfs_context_t ctx)
478 	if ((mp == dead_mountp) || (mp->mnt_op->vfs_sync == 0))
486 	thread_safe = (mp->mnt_vtable->vfc_vfsflags & VFC_VFSTHREADSAFE);
492 	error = (*mp->mnt_op->vfs_sync)(mp, flags, ctx);
504 VFS_VGET(mount_t mp, ino64_t ino, struct vnode **vpp, vfs_context_t ctx)
512 	if ((mp == dead_mountp) || (mp->mnt_op->vfs_vget == 0))
520 	thread_safe = (mp->mnt_vtable->vfc_vfsflags & VFC_VFSTHREADSAFE);
526 	error = (*mp->mnt_op->vfs_vget)(mp, ino, vpp, ctx);
538 VFS_FHTOVP(mount_t mp, int fhlen, unsigned char * fhp, vnode_t * vpp, vfs_context_t ctx)
546 	if ((mp == dead_mountp) || (mp->mnt_op->vfs_fhtovp == 0))
554 	thread_safe = (mp->mnt_vtable->vfc_vfsflags & VFC_VFSTHREADSAFE);
560 	error = (*mp->mnt_op->vfs_fhtovp)(mp, fhlen, fhp, vpp, ctx);
608 vfs_throttle_mask(mount_t mp)
610 	return(mp->mnt_throttle_mask);
615 vfs_name(mount_t mp, char * buffer)
617         strncpy(buffer, mp->mnt_vtable->vfc_name, MFSNAMELEN);
622 vfs_typenum(mount_t mp)
624 	return(mp->mnt_vtable->vfc_typenum);
629 vfs_mntlabel(mount_t mp)
631 	return (void*)mp->mnt_mntlabel;
636 vfs_flags(mount_t mp)
638 	return((uint64_t)(mp->mnt_flag & (MNT_CMDFLAGS | MNT_VISFLAGMASK)));
643 vfs_setflags(mount_t mp, uint64_t flags)
647 	mount_lock(mp);
648 	mp->mnt_flag |= lflags;
649 	mount_unlock(mp);
654 vfs_clearflags(mount_t mp , uint64_t flags)
658 	mount_lock(mp);
659 	mp->mnt_flag &= ~lflags;
660 	mount_unlock(mp);
665 vfs_iswriteupgrade(mount_t mp) /* ronly &&  MNTK_WANTRDWR */
667 	return ((mp->mnt_flag & MNT_RDONLY) && (mp->mnt_kern_flag & MNTK_WANTRDWR));
673 vfs_isrdonly(mount_t mp)
675 	return (mp->mnt_flag & MNT_RDONLY);
680 vfs_issynchronous(mount_t mp)
682 	return (mp->mnt_flag & MNT_SYNCHRONOUS);
687 vfs_isrdwr(mount_t mp)
689 	return ((mp->mnt_flag & MNT_RDONLY) == 0);
695 vfs_isupdate(mount_t mp)
697 	return (mp->mnt_flag & MNT_UPDATE);
703 vfs_isreload(mount_t mp)
705 	return ((mp->mnt_flag & MNT_UPDATE) && (mp->mnt_flag & MNT_RELOAD));
710 vfs_isforce(mount_t mp)
712 	if ((mp->mnt_lflag & MNT_LFORCE) || (mp->mnt_kern_flag & MNTK_FRCUNMOUNT))
719 vfs_isunmount(mount_t mp)
721 	if ((mp->mnt_lflag & MNT_LUNMOUNT)) {
729 vfs_64bitready(mount_t mp)
731 	if ((mp->mnt_vtable->vfc_vfsflags & VFC_VFS64BITREADY))
739 vfs_authcache_ttl(mount_t mp)
741         if ( (mp->mnt_kern_flag & (MNTK_AUTH_OPAQUE | MNTK_AUTH_CACHE_TTL)) )
742 	        return (mp->mnt_authcache_ttl);
748 vfs_setauthcache_ttl(mount_t mp, int ttl)
750 	mount_lock(mp);
751 	mp->mnt_kern_flag |= MNTK_AUTH_CACHE_TTL;
752 	mp->mnt_authcache_ttl = ttl;
753 	mount_unlock(mp);
757 vfs_clearauthcache_ttl(mount_t mp)
759 	mount_lock(mp);
760 	mp->mnt_kern_flag &= ~MNTK_AUTH_CACHE_TTL;
765 	mp->mnt_authcache_ttl = CACHED_LOOKUP_RIGHT_TTL;
766 	mount_unlock(mp);
770 vfs_markdependency(mount_t mp)
773 	mount_lock(mp);
774 	mp->mnt_dependent_process = p;
775 	mp->mnt_dependent_pid = proc_pid(p);
776 	mount_unlock(mp);
781 vfs_authopaque(mount_t mp)
783 	if ((mp->mnt_kern_flag & MNTK_AUTH_OPAQUE))
790 vfs_authopaqueaccess(mount_t mp)
792 	if ((mp->mnt_kern_flag & MNTK_AUTH_OPAQUE_ACCESS))
799 vfs_setauthopaque(mount_t mp)
801 	mount_lock(mp);
802 	mp->mnt_kern_flag |= MNTK_AUTH_OPAQUE;
803 	mount_unlock(mp);
807 vfs_setauthopaqueaccess(mount_t mp)
809 	mount_lock(mp);
810 	mp->mnt_kern_flag |= MNTK_AUTH_OPAQUE_ACCESS;
811 	mount_unlock(mp);
815 vfs_clearauthopaque(mount_t mp)
817 	mount_lock(mp);
818 	mp->mnt_kern_flag &= ~MNTK_AUTH_OPAQUE;
819 	mount_unlock(mp);
823 vfs_clearauthopaqueaccess(mount_t mp)
825 	mount_lock(mp);
826 	mp->mnt_kern_flag &= ~MNTK_AUTH_OPAQUE_ACCESS;
827 	mount_unlock(mp);
831 vfs_setextendedsecurity(mount_t mp)
833 	mount_lock(mp);
834 	mp->mnt_kern_flag |= MNTK_EXTENDED_SECURITY;
835 	mount_unlock(mp);
839 vfs_clearextendedsecurity(mount_t mp)
841 	mount_lock(mp);
842 	mp->mnt_kern_flag &= ~MNTK_EXTENDED_SECURITY;
843 	mount_unlock(mp);
847 vfs_extendedsecurity(mount_t mp)
849 	return(mp->mnt_kern_flag & MNTK_EXTENDED_SECURITY);
854 vfs_maxsymlen(mount_t mp)
856 	return(mp->mnt_maxsymlinklen);
861 vfs_setmaxsymlen(mount_t mp, uint32_t symlen)
863 	mp->mnt_maxsymlinklen = symlen;
868 vfs_statfs(mount_t mp)
870 	return(&mp->mnt_vfsstat);
874 vfs_getattr(mount_t mp, struct vfs_attr *vfa, vfs_context_t ctx)
878 	if ((error = VFS_GETATTR(mp, vfa, ctx)) != 0)
893 vfs_setattr(mount_t mp, struct vfs_attr *vfa, vfs_context_t ctx)
897 	if (vfs_isrdonly(mp))
900 	error = VFS_SETATTR(mp, vfa, ctx);
912 vfs_fsprivate(mount_t mp)
914 	return(mp->mnt_data);
919 vfs_setfsprivate(mount_t mp, void *mntdata)
921 	mount_lock(mp);
922 	mp->mnt_data = mntdata;
923 	mount_unlock(mp);
932 vfs_devblocksize(mount_t mp) {
934         return(mp->mnt_devblocksize);
941 vfs_vnodecovered(mount_t mp)
943 	vnode_t vp = mp->mnt_vnodecovered;
961 vfs_devvp(mount_t mp)
963 	vnode_t vp = mp->mnt_devvp;
976 vfs_ioattr(mount_t mp, struct vfsioattr *ioattrp)
978         if (mp == NULL) {
988 	        ioattrp->io_maxreadcnt  = mp->mnt_maxreadcnt;
989 		ioattrp->io_maxwritecnt = mp->mnt_maxwritecnt;
990 		ioattrp->io_segreadcnt  = mp->mnt_segreadcnt;
991 		ioattrp->io_segwritecnt = mp->mnt_segwritecnt;
992 		ioattrp->io_maxsegreadsize  = mp->mnt_maxsegreadsize;
993 		ioattrp->io_maxsegwritesize = mp->mnt_maxsegwritesize;
994 		ioattrp->io_devblocksize = mp->mnt_devblocksize;
995 		ioattrp->io_flags = mp->mnt_ioflags;
1006 vfs_setioattr(mount_t mp, struct vfsioattr * ioattrp)
1008         if (mp == NULL)
1010         mp->mnt_maxreadcnt  = ioattrp->io_maxreadcnt;
1011 	mp->mnt_maxwritecnt = ioattrp->io_maxwritecnt;
1012 	mp->mnt_segreadcnt  = ioattrp->io_segreadcnt;
1013 	mp->mnt_segwritecnt = ioattrp->io_segwritecnt;
1014 	mp->mnt_maxsegreadsize = ioattrp->io_maxsegreadsize;
1015 	mp->mnt_maxsegwritesize = ioattrp->io_maxsegwritesize;
1016 	mp->mnt_devblocksize = ioattrp->io_devblocksize;
1017 	mp->mnt_ioflags = ioattrp->io_flags;
1622 	mount_t mp;
1624 	if ((vp->v_type == VDIR) && ((mp = vp->v_mountedhere) != NULL) &&
1625 	    (mp->mnt_vnodecovered == vp))
1626 		return (mp);
2937 	mount_t mp;
2939 	mp = mount_list_lookupby_fsid(fsid, 0 /* locked */, 1 /* withref */);
2940 	if (mp == NULL) {
2944 	error = vfs_busy(mp, LK_NOWAIT);
2945 	mount_iterdrop(mp);
2951 	mount_lock(mp);
2952 	if (mp->mnt_triggercallback != NULL) {
2954 		mount_unlock(mp);
2958 	mp->mnt_triggercallback = vtc;
2959 	mp->mnt_triggerdata = data;
2960 	mount_unlock(mp);
2962 	mp->mnt_triggercallback(mp, VTC_REPLACE, data, ctx);
2965 	vfs_unbusy(mp);