On Tue, Jul 30, 2024 at 01:15:51AM GMT, viro@kernel.org wrote:

From: Al Viro <viro@zeniv.linux.org.uk>

Currently all emptiness checks are done as fd_file(...) in boolean
context (usually something like if (!fd_file(f))...); those will be
taken care of later.

However, there's a couple of places where we do those checks as
'store fd_file(...) into a variable, then check if this variable is
NULL' and those are harder to spot.

Get rid of those now.

use fd_empty() instead of extracting file and then checking it for NULL.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Reviewed-by: Christian Brauner <brauner@kernel.org>