dm.c (f524d9c95fab54783d0038f7a3e8c014d5b56857) dm.c (b879f915bc48a18d4f4462729192435bb0f17052)
1/*
2 * Copyright (C) 2001, 2002 Sistina Software (UK) Limited.
3 * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
4 *
5 * This file is released under the GPL.
6 */
7
8#include "dm-core.h"

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484}
485EXPORT_SYMBOL_GPL(dm_start_time_ns_from_clone);
486
487static void start_io_acct(struct dm_io *io)
488{
489 struct mapped_device *md = io->md;
490 struct bio *bio = io->orig_bio;
491
1/*
2 * Copyright (C) 2001, 2002 Sistina Software (UK) Limited.
3 * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
4 *
5 * This file is released under the GPL.
6 */
7
8#include "dm-core.h"

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484}
485EXPORT_SYMBOL_GPL(dm_start_time_ns_from_clone);
486
487static void start_io_acct(struct dm_io *io)
488{
489 struct mapped_device *md = io->md;
490 struct bio *bio = io->orig_bio;
491
492 io->start_time = bio_start_io_acct(bio);
492 bio_start_io_acct_time(bio, io->start_time);
493 if (unlikely(dm_stats_used(&md->stats)))
494 dm_stats_account_io(&md->stats, bio_data_dir(bio),
495 bio->bi_iter.bi_sector, bio_sectors(bio),
496 false, 0, &io->stats_aux);
497}
498
499static void end_io_acct(struct mapped_device *md, struct bio *bio,
500 unsigned long start_time, struct dm_stats_aux *stats_aux)

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530 io = container_of(tio, struct dm_io, tio);
531 io->magic = DM_IO_MAGIC;
532 io->status = 0;
533 atomic_set(&io->io_count, 1);
534 io->orig_bio = bio;
535 io->md = md;
536 spin_lock_init(&io->endio_lock);
537
493 if (unlikely(dm_stats_used(&md->stats)))
494 dm_stats_account_io(&md->stats, bio_data_dir(bio),
495 bio->bi_iter.bi_sector, bio_sectors(bio),
496 false, 0, &io->stats_aux);
497}
498
499static void end_io_acct(struct mapped_device *md, struct bio *bio,
500 unsigned long start_time, struct dm_stats_aux *stats_aux)

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530 io = container_of(tio, struct dm_io, tio);
531 io->magic = DM_IO_MAGIC;
532 io->status = 0;
533 atomic_set(&io->io_count, 1);
534 io->orig_bio = bio;
535 io->md = md;
536 spin_lock_init(&io->endio_lock);
537
538 start_io_acct(io);
538 io->start_time = jiffies;
539
540 return io;
541}
542
543static void free_io(struct mapped_device *md, struct dm_io *io)
544{
545 bio_put(&io->tio.clone);
546}

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1477 GFP_NOIO, &md->queue->bio_split);
1478 ci.io->orig_bio = b;
1479
1480 bio_chain(b, bio);
1481 trace_block_split(b, bio->bi_iter.bi_sector);
1482 submit_bio_noacct(bio);
1483 }
1484 }
539
540 return io;
541}
542
543static void free_io(struct mapped_device *md, struct dm_io *io)
544{
545 bio_put(&io->tio.clone);
546}

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1477 GFP_NOIO, &md->queue->bio_split);
1478 ci.io->orig_bio = b;
1479
1480 bio_chain(b, bio);
1481 trace_block_split(b, bio->bi_iter.bi_sector);
1482 submit_bio_noacct(bio);
1483 }
1484 }
1485 start_io_acct(ci.io);
1485
1486 /* drop the extra reference count */
1487 dm_io_dec_pending(ci.io, errno_to_blk_status(error));
1488}
1489
1490static void dm_submit_bio(struct bio *bio)
1491{
1492 struct mapped_device *md = bio->bi_bdev->bd_disk->private_data;

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1487 /* drop the extra reference count */
1488 dm_io_dec_pending(ci.io, errno_to_blk_status(error));
1489}
1490
1491static void dm_submit_bio(struct bio *bio)
1492{
1493 struct mapped_device *md = bio->bi_bdev->bd_disk->private_data;

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