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| author | Alexey Dobriyan <adobriyan@gmail.com> | 2009-05-04 03:32:03 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-06-11 21:36:06 -0400 |
| commit | f3da392e9ff14b9f388e74319e6d195848991c07 (patch) | |
| tree | d9e7660e5c0b4524aeaafcc5b89a9d68a7ca3817 /fs/namespace.c | |
| parent | 8c85e125124a473d6f3e9bb187b0b84207f81d91 (diff) | |
| download | lwn-f3da392e9ff14b9f388e74319e6d195848991c07.tar.gz lwn-f3da392e9ff14b9f388e74319e6d195848991c07.zip | |
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.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 120b8a6b99ed..7e537f0393b5 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 || |