From e130330a874f4dec6628c094455180d4113c6aa1 Mon Sep 17 00:00:00 2001 From: Brian Behlendorf Date: Tue, 14 Jun 2011 16:25:29 -0700 Subject: [PATCH] Handle /etc/mtab -> /proc/mounts symlink Under Fedora 15 /etc/mtab is now a symlink to /proc/mounts by default. When /etc/mtab is a symlink the mount.zfs helper should not update it. There was code in place to handle this case but it used stat() which traverses the link and then issues the stat on /proc/mounts. We need to use lstat() to prevent the link traversal and instead stat /etc/mtab. Closes #270 --- cmd/mount_zfs/mount_zfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/cmd/mount_zfs/mount_zfs.c b/cmd/mount_zfs/mount_zfs.c index e97b2b8a5..7173f5698 100644 --- a/cmd/mount_zfs/mount_zfs.c +++ b/cmd/mount_zfs/mount_zfs.c @@ -252,7 +252,7 @@ mtab_is_writeable(void) struct stat st; int error, fd; - error = stat(MNTTAB, &st); + error = lstat(MNTTAB, &st); if (error || S_ISLNK(st.st_mode)) return (0);