tree 29668769460a5f355b8f609bcae2cbe92758224a
parent 5ae4998b5d6fc703a16c9fa935fb7d335843bf22
author Matthew Wilcox (Oracle) <willy@infradead.org> 1601693722 +0100
committer Al Viro <viro@zeniv.linux.org.uk> 1602786041 -0400

fs: Allow a NULL pos pointer to __kernel_write

Linus prefers that callers be allowed to pass in a NULL pointer for ppos
like new_sync_write().

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>