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authorIan Kent <raven@themaw.net>2005-06-21 17:16:38 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-21 19:07:35 -0700
commit9b1e3afd6d56937ced3914971621d0f053ea9178 (patch)
tree059762a20c069273247b423b6075adcd89624e42 /fs/autofs4/expire.c
parent8818760512424f60ad9fafb7a087b007a9274eb3 (diff)
downloadop-kernel-dev-9b1e3afd6d56937ced3914971621d0f053ea9178.zip
op-kernel-dev-9b1e3afd6d56937ced3914971621d0f053ea9178.tar.gz
[PATCH] autofs4: avoid panic on bind mount of autofs owned directory
While this is not a solution to bind and move mounts on autofs owned directories it is necessary to fix the trady error handling. At least it avoids the kernel panic I observed checking out bug #4589. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/autofs4/expire.c')
-rw-r--r--fs/autofs4/expire.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
index 500425e..feb6ac4 100644
--- a/fs/autofs4/expire.c
+++ b/fs/autofs4/expire.c
@@ -56,12 +56,9 @@ static int autofs4_check_mount(struct vfsmount *mnt, struct dentry *dentry)
mntget(mnt);
dget(dentry);
- if (!follow_down(&mnt, &dentry))
+ if (!autofs4_follow_mount(&mnt, &dentry))
goto done;
- while (d_mountpoint(dentry) && follow_down(&mnt, &dentry))
- ;
-
/* This is an autofs submount, we can't expire it */
if (is_autofs4_dentry(dentry))
goto done;
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