btrfs: utilize folio more in btrfs_page_mkwrite()

We already have a folio that we're using in btrfs_page_mkwrite, update
the rest of the function to use folio everywhere else.  This will make
it easier on Willy when he drops page->index.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2024-07-24 15:24:35 -04:00 • committed by David Sterba
commit 7e755aa731