bcachefs: Improve check for when bios are physically contiguous

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

diff --git a/fs/bcachefs/compress.c b/fs/bcachefs/compress.c
index 595d76aa3956bae67711f0fda5db687e37582cc0..27bbc265d550a3887ec40a2a9471dbfef710db57 100644 (file)
--- a/fs/bcachefs/compress.c
+++ b/fs/bcachefs/compress.c
@@ -70,7 +70,7 @@ static struct bbuf __bio_map_or_bounce(struct bch_fs *c, struct bio *bio,
 
        BUG_ON(bvec_iter_sectors(start) > c->sb.encoded_extent_max);
 
-       if (!IS_ENABLED(CONFIG_HIGHMEM) &&
+       if (!PageHighMem(bio_iter_page(bio, start)) &&
            bio_phys_contig(bio, start))
                return (struct bbuf) {
                        .b = page_address(bio_iter_page(bio, start)) +