From: Francois Tigeot <ftigeot@wolfpond.org>
Date: Mon, 15 Aug 2011 12:42:23 +0000 (+0200)
Subject: HAMMER VFS: record the name of the mount directory
X-Git-Tag: v3.0.0~407
X-Git-Url: http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/98ad7ade4883ecc520b2ba2a356e71709f584cf4

HAMMER VFS: record the name of the mount directory

* It has to be set at mount time in mp->mnt_stat.f_mntonname.

* Contrary to most filesystems, Hammer didn't do it.

* The new code was taken from ffs_mount() and OpenBSD's vfs_rootmountalloc()
---

diff --git a/sys/vfs/hammer/hammer_vfsops.c b/sys/vfs/hammer/hammer_vfsops.c
index 62a73c9..4b6103e 100644
--- a/sys/vfs/hammer/hammer_vfsops.c
+++ b/sys/vfs/hammer/hammer_vfsops.c
@@ -792,6 +792,20 @@ hammer_vfs_mount(struct mount *mp, char *mntpt, caddr_t data,
 		vflush(mp, 0, 0);
 
 done:
+	if ((mp->mnt_flag & MNT_UPDATE) == 0) {
+		/* New mount */
+
+		/* Populate info for mount point (NULL pad)*/
+		bzero(mp->mnt_stat.f_mntonname, MNAMELEN);
+		size_t size;
+		if (mntpt) {
+			copyinstr(mntpt, mp->mnt_stat.f_mntonname,
+							MNAMELEN -1, &size);
+		} else { /* Root mount */
+			mp->mnt_stat.f_mntonname[0] = '/';
+		}
+	}
+	(void)VFS_STATFS(mp, &mp->mnt_stat, cred);
 	hammer_rel_volume(rootvol, 0);
 failed:
 	/*