aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorMilan Broz <mbroz@redhat.com>2008-02-07 21:10:49 -0500
committerAlasdair G Kergon <agk@redhat.com>2008-02-07 21:10:49 -0500
commit4e4eef64e246694a6302c3ee95ac9b60c40f877e (patch)
tree704b46c01bf929873bbca0ea28e621f0c4e3830f
parentee7a491e62214bfd56c97c1fef3672c09e2a700d (diff)
dm crypt: adjust io processing functions
Rename functions to follow calling convention. Prepare write io error processing function skeleton. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
-rw-r--r--drivers/md/dm-crypt.c40
1 files changed, 25 insertions, 15 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 278659975d7..5b83204b659 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -1,7 +1,7 @@
1/* 1/*
2 * Copyright (C) 2003 Christophe Saout <christophe@saout.de> 2 * Copyright (C) 2003 Christophe Saout <christophe@saout.de>
3 * Copyright (C) 2004 Clemens Fruhwirth <clemens@endorphin.org> 3 * Copyright (C) 2004 Clemens Fruhwirth <clemens@endorphin.org>
4 * Copyright (C) 2006 Red Hat, Inc. All rights reserved. 4 * Copyright (C) 2006-2007 Red Hat, Inc. All rights reserved.
5 * 5 *
6 * This file is released under the GPL. 6 * This file is released under the GPL.
7 */ 7 */
@@ -481,14 +481,14 @@ static void crypt_dec_pending(struct dm_crypt_io *io)
481 * starved by new requests which can block in the first stages due 481 * starved by new requests which can block in the first stages due
482 * to memory allocation. 482 * to memory allocation.
483 */ 483 */
484static void kcryptd_do_work(struct work_struct *work); 484static void kcryptd_io(struct work_struct *work);
485static void kcryptd_do_crypt(struct work_struct *work); 485static void kcryptd_crypt(struct work_struct *work);
486 486
487static void kcryptd_queue_io(struct dm_crypt_io *io) 487static void kcryptd_queue_io(struct dm_crypt_io *io)
488{ 488{
489 struct crypt_config *cc = io->target->private; 489 struct crypt_config *cc = io->target->private;
490 490
491 INIT_WORK(&io->work, kcryptd_do_work); 491 INIT_WORK(&io->work, kcryptd_io);
492 queue_work(cc->io_queue, &io->work); 492 queue_work(cc->io_queue, &io->work);
493} 493}
494 494
@@ -496,7 +496,7 @@ static void kcryptd_queue_crypt(struct dm_crypt_io *io)
496{ 496{
497 struct crypt_config *cc = io->target->private; 497 struct crypt_config *cc = io->target->private;
498 498
499 INIT_WORK(&io->work, kcryptd_do_crypt); 499 INIT_WORK(&io->work, kcryptd_crypt);
500 queue_work(cc->crypt_queue, &io->work); 500 queue_work(cc->crypt_queue, &io->work);
501} 501}
502 502
@@ -539,7 +539,7 @@ static void clone_init(struct dm_crypt_io *io, struct bio *clone)
539 clone->bi_destructor = dm_crypt_bio_destructor; 539 clone->bi_destructor = dm_crypt_bio_destructor;
540} 540}
541 541
542static void process_read(struct dm_crypt_io *io) 542static void kcryptd_io_read(struct dm_crypt_io *io)
543{ 543{
544 struct crypt_config *cc = io->target->private; 544 struct crypt_config *cc = io->target->private;
545 struct bio *base_bio = io->base_bio; 545 struct bio *base_bio = io->base_bio;
@@ -571,7 +571,15 @@ static void process_read(struct dm_crypt_io *io)
571 generic_make_request(clone); 571 generic_make_request(clone);
572} 572}
573 573
574static void process_write(struct dm_crypt_io *io) 574static void kcryptd_io_write(struct dm_crypt_io *io)
575{
576}
577
578static void kcryptd_crypt_write_io_submit(struct dm_crypt_io *io, int error)
579{
580}
581
582static void kcryptd_crypt_write_convert(struct dm_crypt_io *io)
575{ 583{
576 struct crypt_config *cc = io->target->private; 584 struct crypt_config *cc = io->target->private;
577 struct bio *base_bio = io->base_bio; 585 struct bio *base_bio = io->base_bio;
@@ -629,7 +637,7 @@ static void process_write(struct dm_crypt_io *io)
629 } 637 }
630} 638}
631 639
632static void crypt_read_done(struct dm_crypt_io *io, int error) 640static void kcryptd_crypt_read_done(struct dm_crypt_io *io, int error)
633{ 641{
634 if (unlikely(error < 0)) 642 if (unlikely(error < 0))
635 io->error = -EIO; 643 io->error = -EIO;
@@ -637,7 +645,7 @@ static void crypt_read_done(struct dm_crypt_io *io, int error)
637 crypt_dec_pending(io); 645 crypt_dec_pending(io);
638} 646}
639 647
640static void process_read_endio(struct dm_crypt_io *io) 648static void kcryptd_crypt_read_convert(struct dm_crypt_io *io)
641{ 649{
642 struct crypt_config *cc = io->target->private; 650 struct crypt_config *cc = io->target->private;
643 int r = 0; 651 int r = 0;
@@ -647,25 +655,27 @@ static void process_read_endio(struct dm_crypt_io *io)
647 655
648 r = crypt_convert(cc, &io->ctx); 656 r = crypt_convert(cc, &io->ctx);
649 657
650 crypt_read_done(io, r); 658 kcryptd_crypt_read_done(io, r);
651} 659}
652 660
653static void kcryptd_do_work(struct work_struct *work) 661static void kcryptd_io(struct work_struct *work)
654{ 662{
655 struct dm_crypt_io *io = container_of(work, struct dm_crypt_io, work); 663 struct dm_crypt_io *io = container_of(work, struct dm_crypt_io, work);
656 664
657 if (bio_data_dir(io->base_bio) == READ) 665 if (bio_data_dir(io->base_bio) == READ)
658 process_read(io); 666 kcryptd_io_read(io);
667 else
668 kcryptd_io_write(io);
659} 669}
660 670
661static void kcryptd_do_crypt(struct work_struct *work) 671static void kcryptd_crypt(struct work_struct *work)
662{ 672{
663 struct dm_crypt_io *io = container_of(work, struct dm_crypt_io, work); 673 struct dm_crypt_io *io = container_of(work, struct dm_crypt_io, work);
664 674
665 if (bio_data_dir(io->base_bio) == READ) 675 if (bio_data_dir(io->base_bio) == READ)
666 process_read_endio(io); 676 kcryptd_crypt_read_convert(io);
667 else 677 else
668 process_write(io); 678 kcryptd_crypt_write_convert(io);
669} 679}
670 680
671/* 681/*