[PATCH 03/17] dup_mnt_ns(): get rid of pointless grabbing ofvfsmount_lock

From: Al Viro
Date: Thu Oct 03 2013 - 02:18:03 EST



mnt_list is protected by namespace_sem, not vfsmount_lock

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
fs/namespace.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index f6b7010..09a255d 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2444,9 +2444,7 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
return ERR_CAST(new);
}
new_ns->root = new;
- br_write_lock(&vfsmount_lock);
list_add_tail(&new_ns->list, &new->mnt_list);
- br_write_unlock(&vfsmount_lock);

/*
* Second pass: switch the tsk->fs->* elements and mark new vfsmounts
--
1.7.2.5


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/