[PATCH] fs: Initialize mountpoint list head in new_mountpoint()
From: Murilo Opsfelder Araujo
Date: Mon Aug 18 2014 - 22:45:15 EST
The commit 89f7ca1af15bdfe7a6aed343032a84af2a69f736 makes next-20140818
to panic because mountpoint list head was not initialized. Initializing
it with NULL fixes the problem.
commit 89f7ca1af15bdfe7a6aed343032a84af2a69f736
Author: Eric W. Biederman <ebiederman@xxxxxxxxxxx>
Date: Sun Sep 22 19:37:01 2013 -0700
vfs: Keep a list of mounts on a mount point
To spot any possible problems call BUG if a mountpoint
is put when it's list of mounts is not empty.
AV: use hlist instead of list_head
Signed-off-by: Murilo Opsfelder Araujo <mopsfelder@xxxxxxxxx>
---
fs/namespace.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/namespace.c b/fs/namespace.c
index 1a2bbef..1a00bac 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -736,6 +736,7 @@ static struct mountpoint *new_mountpoint(struct dentry *dentry)
return ERR_PTR(ret);
}
+ INIT_HLIST_HEAD(&mp->m_list);
mp->m_dentry = dentry;
mp->m_count = 1;
hlist_add_head(&mp->m_hash, chain);
--
2.1.0.rc2.234.ge4c5f60
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