watch_queue: Use page->private instead of page->index

We are attempting to eliminate page->index, so use page->private
instead.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Link: https://lore.kernel.org/r/20241125175443.2911738-1-willy@infradead.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2024-11-25 17:54:41 +00:00 • committed by Christian Brauner
commit 1197867a5d
No known key found for this signature in database
GPG key ID: 91C61BC06578DCA2