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Commit b635b00e authored by Milan Broz's avatar Milan Broz Committed by Alasdair G Kergon
Browse files

dm crypt: tidy sector 



Prepare local sector variable (offset) for later patch.
Do not update io->sector for still-running I/O.

No functional change.

Signed-off-by: default avatarMilan Broz <mbroz@redhat.com>
Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
parent 586e80e6

drivers/md/dm-crypt.c

+5 −2
Original line number Diff line number Diff line
@@ -688,7 +688,6 @@ static void kcryptd_crypt_write_io_submit(struct dm_crypt_io *io, 
	BUG_ON(io->ctx.idx_out < clone->bi_vcnt);



	clone->bi_sector = cc->start + io->sector;

	io->sector += bio_sectors(clone);



	if (async)

		kcryptd_queue_io(io);
@@ -703,13 +702,14 @@ static void kcryptd_crypt_write_convert(struct dm_crypt_io *io) 
	int crypt_finished;

	unsigned out_of_pages = 0;

	unsigned remaining = io->base_bio->bi_size;

	sector_t sector = io->sector;

	int r;



	/*

	 * Prevent io from disappearing until this function completes.

	 */

	crypt_inc_pending(io);

	crypt_convert_init(cc, &io->ctx, NULL, io->base_bio, io->sector);

	crypt_convert_init(cc, &io->ctx, NULL, io->base_bio, sector);



	/*

	 * The allocated buffers can be smaller than the whole bio,
@@ -726,6 +726,7 @@ static void kcryptd_crypt_write_convert(struct dm_crypt_io *io) 
		io->ctx.idx_out = 0;



		remaining -= clone->bi_size;

		sector += bio_sectors(clone);



		crypt_inc_pending(io);

		r = crypt_convert(cc, &io->ctx);
@@ -741,6 +742,8 @@ static void kcryptd_crypt_write_convert(struct dm_crypt_io *io) 
			 */

			if (unlikely(r < 0))

				break;



			io->sector = sector;

		}



		/*