block: remove bogus comments in __bio_add_pc_page (6601e44e) · Commits · 戴 / test

We are never called with file system pages by defintions for the passthrough interface, and we also never undo any addition later these days. Signed-off-by:

Christoph Hellwig <hch@lst.de> Signed-off-by:

Jens Axboe <axboe@kernel.dk>

block/bio.c

+0 −9

Original line number	Diff line number	Diff line
		@@ -724,11 +724,6 @@ static int __bio_add_pc_page(struct request_queue q, struct bio bio,
		if (((bio->bi_iter.bi_size + len) >> 9) > queue_max_hw_sectors(q))
		return 0;

		/*
		* For filesystems with a blocksize smaller than the pagesize
		* we will often be called with the same page as last time and
		* a consecutive offset. Optimize this special case.
		*/
		if (bio->bi_vcnt > 0) {
		bvec = &bio->bi_io_vec[bio->bi_vcnt - 1];

		@@ -760,10 +755,6 @@ static int __bio_add_pc_page(struct request_queue q, struct bio bio,
		if (bio->bi_phys_segments >= queue_max_segments(q))
		return 0;

		/*
		* setup the new entry, we might clear it again later if we
		* cannot add the page
		*/
		bvec = &bio->bi_io_vec[bio->bi_vcnt];
		bvec->bv_page = page;
		bvec->bv_len = len;

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