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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-12-23 05:04:31 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-12-23 05:04:31 +0100 |
| commit | faf0dcebd7b387187f29ff811d47df465ea4c9f9 (patch) | |
| tree | 77077e72fe22222a369aa36da2f12e064a91bbe9 /fs/namespace.c | |
| parent | sg_write()/bsg_write() is not fit to be called under KERNEL_DS (diff) | |
| parent | reorganize do_make_slave() (diff) | |
| download | linux-faf0dcebd7b387187f29ff811d47df465ea4c9f9.tar.xz linux-faf0dcebd7b387187f29ff811d47df465ea4c9f9.zip | |
Merge branch 'work.namespace' into for-linus
Diffstat (limited to 'fs/namespace.c')
| -rw-r--r-- | fs/namespace.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index f7e28f8ea04d..b5b1259e064f 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -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); |