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dup_mnt_ns(): get rid of pointless grabbing of vfsmount_lock 

mnt_list is protected by namespace_sem, not vfsmount_lock

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-09-16 22:22:16 -04:00
parent 44bb4385ce
commit aa7a574d0c
1 changed files with 0 additions and 2 deletions
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2
fs/namespace.c
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@ -2444,9 +2444,7 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
return ERR_CAST(new); return ERR_CAST(new);
} }
new_ns->root = new; new_ns->root = new;
br_write_lock(&vfsmount_lock);
list_add_tail(&new_ns->list, &new->mnt_list); 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 * Second pass: switch the tsk->fs->* elements and mark new vfsmounts