These are micro-optimizations for synchronous I/O, which do not matter
compared to all the other inefficiencies in the legacy buffer_head
based mpage code.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
fs/mpage.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/fs/mpage.c b/fs/mpage.c
index 0f8ae954a57903..124550cfac4a70 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -269,11 +269,6 @@ static struct bio *do_mpage_readpage(struct mpage_readpage_args *args)
alloc_new:
if (args->bio == NULL) {
- if (first_hole == blocks_per_page) {
- if (!bdev_read_page(bdev, blocks[0] << (blkbits - 9),
- &folio->page))
- goto out;
- }
args->bio = bio_alloc(bdev, bio_max_segs(args->nr_pages), opf,
gfp);
if (args->bio == NULL)
@@ -579,11 +574,6 @@ static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
alloc_new:
if (bio == NULL) {
- if (first_unmapped == blocks_per_page) {
- if (!bdev_write_page(bdev, blocks[0] << (blkbits - 9),
- page, wbc))
- goto out;
- }
bio = bio_alloc(bdev, BIO_MAX_VECS,
REQ_OP_WRITE | wbc_to_write_flags(wbc),
GFP_NOFS);
--
2.39.0
