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authorAlexey Dobriyan <adobriyan@gmail.com>2009-05-04 03:32:03 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2009-06-11 21:36:06 -0400
commitf3da392e9ff14b9f388e74319e6d195848991c07 (patch)
treed9e7660e5c0b4524aeaafcc5b89a9d68a7ca3817 /fs/namespace.c
parent8c85e125124a473d6f3e9bb187b0b84207f81d91 (diff)
downloadop-kernel-dev-f3da392e9ff14b9f388e74319e6d195848991c07.zip
op-kernel-dev-f3da392e9ff14b9f388e74319e6d195848991c07.tar.gz
dcache: extrace and use d_unlinked()
d_unlinked() will be used in middle-term to ban checkpointing when opened but unlinked file is detected, and in long term, to detect such situation and special case on it. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namespace.c')
-rw-r--r--fs/namespace.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/namespace.c b/fs/namespace.c
index 120b8a6..7e537f0 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1384,7 +1384,7 @@ static int graft_tree(struct vfsmount *mnt, struct path *path)
goto out_unlock;
err = -ENOENT;
- if (IS_ROOT(path->dentry) || !d_unhashed(path->dentry))
+ if (!d_unlinked(path->dentry))
err = attach_recursive_mnt(mnt, path, NULL);
out_unlock:
mutex_unlock(&path->dentry->d_inode->i_mutex);
@@ -1566,7 +1566,7 @@ static int do_move_mount(struct path *path, char *old_name)
if (IS_DEADDIR(path->dentry->d_inode))
goto out1;
- if (!IS_ROOT(path->dentry) && d_unhashed(path->dentry))
+ if (d_unlinked(path->dentry))
goto out1;
err = -EINVAL;
@@ -2129,9 +2129,9 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
error = -ENOENT;
if (IS_DEADDIR(new.dentry->d_inode))
goto out2;
- if (d_unhashed(new.dentry) && !IS_ROOT(new.dentry))
+ if (d_unlinked(new.dentry))
goto out2;
- if (d_unhashed(old.dentry) && !IS_ROOT(old.dentry))
+ if (d_unlinked(old.dentry))
goto out2;
error = -EBUSY;
if (new.mnt == root.mnt ||
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