tree 054b19e810747a2ced5cce3f417dc6e74f816a7b
parent 88e7fbd4a599375a08876e80a76d92e49fdea55c
author David Howells <dhowells@redhat.com> 1426613632 +0000
committer Al Viro <viro@zeniv.linux.org.uk> 1429124729 -0400

VFS: Combine inode checks with d_is_negative() and d_is_positive() in pathwalk

Where we have:

    	if (!dentry->d_inode || d_is_negative(dentry)) {

type constructions in pathwalk we should be able to eliminate the check of
d_inode and rely solely on the result of d_is_negative() or d_is_positive().

What we do have to take care to do is to read d_inode after calling a
d_is_xxx() typecheck function to get the barriering right.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>