tree e91816e85c7721fcff72e5f84336b1dde9d1ac17
parent 871c0067d53ba2dc35897c7da1da675bf4c70511
author OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> 1224111028 +0900
committer Al Viro <viro@zeniv.linux.org.uk> 1224753196 -0400

[PATCH vfs-2.6 2/6] vfs: add d_ancestor()

This adds d_ancestor() instead of d_isparent(), then use it.

If new_dentry == old_dentry, is_subdir() returns 1, looks strange.
"new_dentry == old_dentry" is not subdir obviously. But I'm not
checking callers for now, so this keeps current behavior.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>