Index: sys/fs/msdosfs/denode.h
===================================================================
--- sys/fs/msdosfs/denode.h
+++ sys/fs/msdosfs/denode.h
@@ -179,7 +179,7 @@
 #define DE_INTERNALIZE32(dep, dp)			\
 	 ((dep)->de_StartCluster |= getushort((dp)->deHighClust) << 16)
 #define DE_INTERNALIZE(dep, dp)				\
-	(bcopy((dp)->deName, (dep)->de_Name, 11),	\
+	(memcpy((dep)->de_Name, (dp)->deName, 11),	\
 	 (dep)->de_Attributes = (dp)->deAttributes,	\
 	 (dep)->de_LowerCase = (dp)->deLowerCase,	\
 	 (dep)->de_CHun = (dp)->deCHundredth,		\
@@ -193,7 +193,7 @@
 	 (FAT32((dep)->de_pmp) ? DE_INTERNALIZE32((dep), (dp)) : 0))
 
 #define DE_EXTERNALIZE(dp, dep)				\
-	(bcopy((dep)->de_Name, (dp)->deName, 11),	\
+	(memcpy((dp)->deName, (dep)->de_Name, 11),	\
 	 (dp)->deAttributes = (dep)->de_Attributes,	\
 	 (dp)->deLowerCase = (dep)->de_LowerCase,	\
 	 (dp)->deCHundredth = (dep)->de_CHun,		\
Index: sys/fs/msdosfs/msdosfs_conv.c
===================================================================
--- sys/fs/msdosfs/msdosfs_conv.c
+++ sys/fs/msdosfs/msdosfs_conv.c
@@ -1043,11 +1043,11 @@
 		    sizeof(nbp->nb_buf))
 			return (ENAMETOOLONG);
 
-		bcopy(slot + WIN_CHARS, slot + count, nbp->nb_len);
+		memcpy(slot + count, slot + WIN_CHARS, nbp->nb_len);
 	}
 
 	/* Copy in the substring to its slot and update length so far. */
-	bcopy(name, slot, count);
+	memcpy(slot, name, count);
 	nbp->nb_len = newlen;
 	nbp->nb_last_id = id;
 
@@ -1069,7 +1069,7 @@
 		mbnambuf_init(nbp);
 		return (NULL);
 	}
-	bcopy(&nbp->nb_buf[0], dp->d_name, nbp->nb_len);
+	memcpy(dp->d_name, &nbp->nb_buf[0], nbp->nb_len);
 	dp->d_name[nbp->nb_len] = '\0';
 	dp->d_namlen = nbp->nb_len;
 
Index: sys/fs/msdosfs/msdosfs_fat.c
===================================================================
--- sys/fs/msdosfs/msdosfs_fat.c
+++ sys/fs/msdosfs/msdosfs_fat.c
@@ -335,7 +335,7 @@
 			/* getblk() never fails */
 			bpn = getblk(pmp->pm_devvp, fatbn, bp->b_bcount,
 			    0, 0, 0);
-			bcopy(bp->b_data, bpn->b_data, bp->b_bcount);
+			memcpy(bpn->b_data, bp->b_data, bp->b_bcount);
 			/* Force the clean bit on in the other copies. */
 			if (cleanfat == 16)
 				((uint8_t *)bpn->b_data)[3] |= 0x80;
Index: sys/fs/msdosfs/msdosfs_vnops.c
===================================================================
--- sys/fs/msdosfs/msdosfs_vnops.c
+++ sys/fs/msdosfs/msdosfs_vnops.c
@@ -1156,13 +1156,13 @@
 		 * we moved a directory, then update its .. entry to point
 		 * to the new parent directory.
 		 */
-		bcopy(ip->de_Name, oldname, 11);
-		bcopy(toname, ip->de_Name, 11);	/* update denode */
+		memcpy(oldname, ip->de_Name, 11);
+		memcpy(ip->de_Name, toname, 11);	/* update denode */
 		dp->de_fndoffset = to_diroffset;
 		dp->de_fndcnt = to_count;
 		error = createde(ip, dp, (struct denode **)0, tcnp);
 		if (error) {
-			bcopy(oldname, ip->de_Name, 11);
+			memcpy(ip->de_Name, oldname, 11);
 			if (newparent)
 				VOP_UNLOCK(fdvp, 0);
 			VOP_UNLOCK(fvp, 0);
@@ -1178,7 +1178,7 @@
 		 * to pass the correct name to createde().  Undo this.
 		 */
 		if ((ip->de_Attributes & ATTR_DIRECTORY) != 0)
-			bcopy(oldname, ip->de_Name, 11);
+			memcpy(ip->de_Name, oldname, 11);
 		ip->de_refcnt++;
 		zp->de_fndoffset = from_diroffset;
 		error = removede(zp, ip);
@@ -1339,7 +1339,7 @@
 	/* always succeeds */
 	bp = getblk(pmp->pm_devvp, bn, pmp->pm_bpcluster, 0, 0, 0);
 	bzero(bp->b_data, pmp->pm_bpcluster);
-	bcopy(&dosdirtemplate, bp->b_data, sizeof dosdirtemplate);
+	memcpy(bp->b_data, &dosdirtemplate, sizeof dosdirtemplate);
 	denp = (struct direntry *)bp->b_data;
 	putushort(denp[0].deStartCluster, newcluster);
 	putushort(denp[0].deCDate, ndirent.de_CDate);