diff options
Diffstat (limited to 'sys/kern/vfs_syscalls.c')
| -rw-r--r-- | sys/kern/vfs_syscalls.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c index 88231fe115de..945b30094c7a 100644 --- a/sys/kern/vfs_syscalls.c +++ b/sys/kern/vfs_syscalls.c @@ -36,7 +36,7 @@ * SUCH DAMAGE. * * @(#)vfs_syscalls.c 8.13 (Berkeley) 4/15/94 - * $Id: vfs_syscalls.c,v 1.44 1995/12/17 21:23:22 phk Exp $ + * $Id: vfs_syscalls.c,v 1.45 1996/01/05 17:46:14 wollman Exp $ */ /* @@ -486,7 +486,10 @@ getfsstat(p, uap, retval) sfsp = (caddr_t)uap->buf; count = 0; for (mp = mountlist.cqh_first; mp != (void *)&mountlist; mp = nmp) { - nmp = mp->mnt_list.cqe_next; + if (vfs_busy(mp)) { + nmp = mp->mnt_list.cqe_next; + continue; + } if (sfsp && count < maxcount && ((mp->mnt_flag & MNT_MLOCK) == 0)) { sp = &mp->mnt_stat; @@ -496,15 +499,22 @@ getfsstat(p, uap, retval) */ if (((uap->flags & MNT_NOWAIT) == 0 || (uap->flags & MNT_WAIT)) && - (error = VFS_STATFS(mp, sp, p))) + (error = VFS_STATFS(mp, sp, p))) { + nmp = mp->mnt_list.cqe_next; + vfs_unbusy(mp); continue; + } sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; error = copyout((caddr_t)sp, sfsp, sizeof(*sp)); - if (error) + if (error) { + vfs_unbusy(mp); return (error); + } sfsp += sizeof(*sp); } count++; + nmp = mp->mnt_list.cqe_next; + vfs_unbusy(mp); } if (sfsp && count > maxcount) *retval = maxcount; |