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Commit afeee514 authored by Kent Overstreet's avatar Kent Overstreet Committed by Jens Axboe
Browse files

md: convert to bioset_init()/mempool_init() 



Convert md to embedded bio sets.

Signed-off-by: default avatarKent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent d19936a2

drivers/md/md-faulty.c

+1 −1
Original line number Diff line number Diff line
@@ -214,7 +214,7 @@ static bool faulty_make_request(struct mddev *mddev, struct bio *bio) 
		}

	}

	if (failit) {

		struct bio *b = bio_clone_fast(bio, GFP_NOIO, mddev->bio_set);

		struct bio *b = bio_clone_fast(bio, GFP_NOIO, &mddev->bio_set);



		bio_set_dev(b, conf->rdev->bdev);

		b->bi_private = bio;

drivers/md/md-linear.c

+1 −1
Original line number Diff line number Diff line
@@ -269,7 +269,7 @@ static bool linear_make_request(struct mddev *mddev, struct bio *bio) 
	if (unlikely(bio_end_sector(bio) > end_sector)) {

		/* This bio crosses a device boundary, so we have to split it */

		struct bio *split = bio_split(bio, end_sector - bio_sector,

					      GFP_NOIO, mddev->bio_set);

					      GFP_NOIO, &mddev->bio_set);

		bio_chain(split, bio);

		generic_make_request(bio);

		bio = split;

drivers/md/md-multipath.c

+9 −8
Original line number Diff line number Diff line
@@ -80,7 +80,7 @@ static void multipath_end_bh_io(struct multipath_bh *mp_bh, blk_status_t status) 


	bio->bi_status = status;

	bio_endio(bio);

	mempool_free(mp_bh, conf->pool);

	mempool_free(mp_bh, &conf->pool);

}



static void multipath_end_request(struct bio *bio)
@@ -117,7 +117,7 @@ static bool multipath_make_request(struct mddev *mddev, struct bio * bio) 
		return true;

	}



	mp_bh = mempool_alloc(conf->pool, GFP_NOIO);

	mp_bh = mempool_alloc(&conf->pool, GFP_NOIO);



	mp_bh->master_bio = bio;

	mp_bh->mddev = mddev;
@@ -125,7 +125,7 @@ static bool multipath_make_request(struct mddev *mddev, struct bio * bio) 
	mp_bh->path = multipath_map(conf);

	if (mp_bh->path < 0) {

		bio_io_error(bio);

		mempool_free(mp_bh, conf->pool);

		mempool_free(mp_bh, &conf->pool);

		return true;

	}

	multipath = conf->multipaths + mp_bh->path;
@@ -378,6 +378,7 @@ static int multipath_run (struct mddev *mddev) 
	struct multipath_info *disk;

	struct md_rdev *rdev;

	int working_disks;

	int ret;



	if (md_check_no_bitmap(mddev))

		return -EINVAL;
@@ -431,9 +432,9 @@ static int multipath_run (struct mddev *mddev) 
	}

	mddev->degraded = conf->raid_disks - working_disks;



	conf->pool = mempool_create_kmalloc_pool(NR_RESERVED_BUFS,

	ret = mempool_init_kmalloc_pool(&conf->pool, NR_RESERVED_BUFS,

					sizeof(struct multipath_bh));

	if (conf->pool == NULL)

	if (ret)

		goto out_free_conf;



	mddev->thread = md_register_thread(multipathd, mddev,
@@ -455,7 +456,7 @@ static int multipath_run (struct mddev *mddev) 
	return 0;



out_free_conf:

	mempool_destroy(conf->pool);

	mempool_exit(&conf->pool);

	kfree(conf->multipaths);

	kfree(conf);

	mddev->private = NULL;
@@ -467,7 +468,7 @@ static void multipath_free(struct mddev *mddev, void *priv) 
{

	struct mpconf *conf = priv;



	mempool_destroy(conf->pool);

	mempool_exit(&conf->pool);

	kfree(conf->multipaths);

	kfree(conf);

}

drivers/md/md-multipath.h

+1 −1
Original line number Diff line number Diff line
@@ -13,7 +13,7 @@ struct mpconf { 
	spinlock_t		device_lock;

	struct list_head	retry_list;



	mempool_t		*pool;

	mempool_t		pool;

};



/*

drivers/md/md.c

+24 −37
Original line number Diff line number Diff line
@@ -193,10 +193,10 @@ struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs, 
{

	struct bio *b;



	if (!mddev || !mddev->bio_set)

	if (!mddev || !bioset_initialized(&mddev->bio_set))

		return bio_alloc(gfp_mask, nr_iovecs);



	b = bio_alloc_bioset(gfp_mask, nr_iovecs, mddev->bio_set);

	b = bio_alloc_bioset(gfp_mask, nr_iovecs, &mddev->bio_set);

	if (!b)

		return NULL;

	return b;
@@ -205,10 +205,10 @@ EXPORT_SYMBOL_GPL(bio_alloc_mddev); 


static struct bio *md_bio_alloc_sync(struct mddev *mddev)

{

	if (!mddev || !mddev->sync_set)

	if (!mddev || !bioset_initialized(&mddev->sync_set))

		return bio_alloc(GFP_NOIO, 1);



	return bio_alloc_bioset(GFP_NOIO, 1, mddev->sync_set);

	return bio_alloc_bioset(GFP_NOIO, 1, &mddev->sync_set);

}



/*
@@ -510,7 +510,10 @@ static void mddev_delayed_delete(struct work_struct *ws); 


static void mddev_put(struct mddev *mddev)

{

	struct bio_set *bs = NULL, *sync_bs = NULL;

	struct bio_set bs, sync_bs;



	memset(&bs, 0, sizeof(bs));

	memset(&sync_bs, 0, sizeof(sync_bs));



	if (!atomic_dec_and_lock(&mddev->active, &all_mddevs_lock))

		return;
@@ -521,8 +524,8 @@ static void mddev_put(struct mddev *mddev) 
		list_del_init(&mddev->all_mddevs);

		bs = mddev->bio_set;

		sync_bs = mddev->sync_set;

		mddev->bio_set = NULL;

		mddev->sync_set = NULL;

		memset(&mddev->bio_set, 0, sizeof(mddev->bio_set));

		memset(&mddev->sync_set, 0, sizeof(mddev->sync_set));

		if (mddev->gendisk) {

			/* We did a probe so need to clean up.  Call

			 * queue_work inside the spinlock so that
@@ -535,10 +538,8 @@ static void mddev_put(struct mddev *mddev) 
			kfree(mddev);

	}

	spin_unlock(&all_mddevs_lock);

	if (bs)

		bioset_free(bs);

	if (sync_bs)

		bioset_free(sync_bs);

	bioset_exit(&bs);

	bioset_exit(&sync_bs);

}



static void md_safemode_timeout(struct timer_list *t);
@@ -2123,7 +2124,7 @@ int md_integrity_register(struct mddev *mddev) 
			       bdev_get_integrity(reference->bdev));



	pr_debug("md: data integrity enabled on %s\n", mdname(mddev));

	if (bioset_integrity_create(mddev->bio_set, BIO_POOL_SIZE)) {

	if (bioset_integrity_create(&mddev->bio_set, BIO_POOL_SIZE)) {

		pr_err("md: failed to create integrity pool for %s\n",

		       mdname(mddev));

		return -EINVAL;
@@ -5497,18 +5498,16 @@ int md_run(struct mddev *mddev) 
		sysfs_notify_dirent_safe(rdev->sysfs_state);

	}



	if (mddev->bio_set == NULL) {

		mddev->bio_set = bioset_create(BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS);

		if (!mddev->bio_set)

			return -ENOMEM;

	if (!bioset_initialized(&mddev->bio_set)) {

		err = bioset_init(&mddev->bio_set, BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS);

		if (err)

			return err;

	}

	if (mddev->sync_set == NULL) {

		mddev->sync_set = bioset_create(BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS);

		if (!mddev->sync_set) {

			err = -ENOMEM;

	if (!bioset_initialized(&mddev->sync_set)) {

		err = bioset_init(&mddev->sync_set, BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS);

		if (err)

			goto abort;

	}

	}



	spin_lock(&pers_lock);

	pers = find_pers(mddev->level, mddev->clevel);
@@ -5668,14 +5667,8 @@ int md_run(struct mddev *mddev) 
	return 0;



abort:

	if (mddev->bio_set) {

		bioset_free(mddev->bio_set);

		mddev->bio_set = NULL;

	}

	if (mddev->sync_set) {

		bioset_free(mddev->sync_set);

		mddev->sync_set = NULL;

	}

	bioset_exit(&mddev->bio_set);

	bioset_exit(&mddev->sync_set);



	return err;

}
@@ -5888,14 +5881,8 @@ void md_stop(struct mddev *mddev) 
	 * This is called from dm-raid

	 */

	__md_stop(mddev);

	if (mddev->bio_set) {

		bioset_free(mddev->bio_set);

		mddev->bio_set = NULL;

	}

	if (mddev->sync_set) {

		bioset_free(mddev->sync_set);

		mddev->sync_set = NULL;

	}

	bioset_exit(&mddev->bio_set);

	bioset_exit(&mddev->sync_set);

}



EXPORT_SYMBOL_GPL(md_stop);