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Merge branch 'work.namespace' into for-linus

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This commit is contained in:
Al Viro 2016-12-22 23:04:31 -05:00
commit faf0dcebd7
2 changed files with 38 additions and 44 deletions
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8
fs/namespace.c
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@ -96,10 +96,6 @@ static inline struct hlist_head *mp_hash(struct dentry *dentry)
return &mountpoint_hashtable[tmp & mp_hash_mask];
}
/*
* allocation is serialized by namespace_sem, but we need the spinlock to
* serialize with freeing.
*/
static int mnt_alloc_id(struct mount *mnt)
{
int res;
@ -1034,6 +1030,8 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root,
if (IS_MNT_SLAVE(old))
list_add(&mnt->mnt_slave, &old->mnt_slave);
mnt->mnt_master = old->mnt_master;
} else {
CLEAR_MNT_SHARED(mnt);
}
if (flag & CL_MAKE_SHARED)
set_mnt_shared(mnt);
@ -1828,9 +1826,7 @@ struct vfsmount *clone_private_mount(const struct path *path)
if (IS_MNT_UNBINDABLE(old_mnt))
return ERR_PTR(-EINVAL);
down_read(&namespace_sem);
new_mnt = clone_mnt(old_mnt, path->dentry, CL_PRIVATE);
up_read(&namespace_sem);
if (IS_ERR(new_mnt))
return ERR_CAST(new_mnt);