Release 4.7 drivers/mtd/mtd_blkdevs.c

/*
 * Interface to Linux block layer for MTD 'translation layers'.
 *
 * Copyright © 2003-2010 David Woodhouse <dwmw2@infradead.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/fs.h>
#include <linux/mtd/blktrans.h>
#include <linux/mtd/mtd.h>
#include <linux/blkdev.h>
#include <linux/blkpg.h>
#include <linux/spinlock.h>
#include <linux/hdreg.h>
#include <linux/mutex.h>
#include <asm/uaccess.h>

#include "mtdcore.h"

static LIST_HEAD(blktrans_majors);
static DEFINE_MUTEX(blktrans_ref_mutex);



static void blktrans_dev_release(struct kref *kref)
{
	struct mtd_blktrans_dev *dev =
		container_of(kref, struct mtd_blktrans_dev, ref);

	dev->disk->private_data = NULL;
	blk_cleanup_queue(dev->rq);
	put_disk(dev->disk);
	list_del(&dev->list);
	kfree(dev);
}

Contributors
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maxim levitsky
maxim levitsky
60
98.36%
2
66.67%
h hartley sweeten
h hartley sweeten
1
1.64%
1
33.33%
Total
61
100.00%
3
100.00%



static struct mtd_blktrans_dev *blktrans_dev_get(struct gendisk *disk)
{
	struct mtd_blktrans_dev *dev;

	mutex_lock(&blktrans_ref_mutex);
	dev = disk->private_data;

	if (!dev)
		goto unlock;
	kref_get(&dev->ref);
unlock:
	mutex_unlock(&blktrans_ref_mutex);
	return dev;
}

Contributors
Person
Tokens
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Commits
CommitProp
maxim levitsky
maxim levitsky
57
100.00%
1
100.00%
Total
57
100.00%
1
100.00%



static void blktrans_dev_put(struct mtd_blktrans_dev *dev)
{
	mutex_lock(&blktrans_ref_mutex);
	kref_put(&dev->ref, blktrans_dev_release);
	mutex_unlock(&blktrans_ref_mutex);
}


Contributors
Person
Tokens
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Commits
CommitProp
maxim levitsky
maxim levitsky
32
96.97%
1
50.00%
h hartley sweeten
h hartley sweeten
1
3.03%
1
50.00%
Total
33
100.00%
2
100.00%



static int do_blktrans_request(struct mtd_blktrans_ops *tr,
			       struct mtd_blktrans_dev *dev,
			       struct request *req)
{
	unsigned long block, nsect;
	char *buf;

	block = blk_rq_pos(req) << 9 >> tr->blkshift;
	nsect = blk_rq_cur_bytes(req) >> tr->blkshift;
	buf = bio_data(req->bio);

	if (req->cmd_type != REQ_TYPE_FS)
		return -EIO;

	if (req->cmd_flags & REQ_FLUSH)
		return tr->flush(dev);

	if (blk_rq_pos(req) + blk_rq_cur_sectors(req) >
	    get_capacity(req->rq_disk))
		return -EIO;

	if (req->cmd_flags & REQ_DISCARD)
		return tr->discard(dev, block, nsect);

	if (rq_data_dir(req) == READ) {
		for (; nsect > 0; nsect--, block++, buf += tr->blksize)
			if (tr->readsect(dev, block, buf))
				return -EIO;
		rq_flush_dcache_pages(req);
		return 0;
	} else {
		if (!tr->writesect)
			return -EIO;

		rq_flush_dcache_pages(req);
		for (; nsect > 0; nsect--, block++, buf += tr->blksize)
			if (tr->writesect(dev, block, buf))
				return -EIO;
		return 0;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
david woodhouse
david woodhouse
146
58.87%
1
9.09%
tejun heo
tejun heo
24
9.68%
3
27.27%
christoph hellwig
christoph hellwig
24
9.68%
2
18.18%
richard purdie
richard purdie
18
7.26%
1
9.09%
roman peniaev
roman peniaev
16
6.45%
1
9.09%
ilya loginov
ilya loginov
10
4.03%
1
9.09%
tomer barletz
tomer barletz
6
2.42%
1
9.09%
jens axboe
jens axboe
4
1.61%
1
9.09%
Total
248
100.00%
11
100.00%



int mtd_blktrans_cease_background(struct mtd_blktrans_dev *dev)
{
	return dev->bg_stop;
}
Contributors
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jarkko lavinen
jarkko lavinen
14
93.33%
1
50.00%
artem bityutskiy
artem bityutskiy
1
6.67%
1
50.00%
Total
15
100.00%
2
100.00%


EXPORT_SYMBOL_GPL(mtd_blktrans_cease_background);



static void mtd_blktrans_work(struct work_struct *work)
{
	struct mtd_blktrans_dev *dev =
		container_of(work, struct mtd_blktrans_dev, work);
	struct mtd_blktrans_ops *tr = dev->tr;
	struct request_queue *rq = dev->rq;
	struct request *req = NULL;
	int background_done = 0;

	spin_lock_irq(rq->queue_lock);

	while (1) {
		int res;

		dev->bg_stop = false;
		if (!req && !(req = blk_fetch_request(rq))) {
			if (tr->background && !background_done) {
				spin_unlock_irq(rq->queue_lock);
				mutex_lock(&dev->lock);
				tr->background(dev);
				mutex_unlock(&dev->lock);
				spin_lock_irq(rq->queue_lock);
				/*
                                 * Do background processing just once per idle
                                 * period.
                                 */
				background_done = !dev->bg_stop;
				continue;
			}
			break;
		}

		spin_unlock_irq(rq->queue_lock);

		mutex_lock(&dev->lock);
		res = do_blktrans_request(dev->tr, dev, req);
		mutex_unlock(&dev->lock);

		spin_lock_irq(rq->queue_lock);

		if (!__blk_end_request_cur(req, res))
			req = NULL;

		background_done = 0;
	}

	spin_unlock_irq(rq->queue_lock);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
david woodhouse
david woodhouse
84
38.01%
2
18.18%
jarkko lavinen
jarkko lavinen
71
32.13%
1
9.09%
tejun heo
tejun heo
24
10.86%
3
27.27%
ezequiel garcia
ezequiel garcia
16
7.24%
1
9.09%
artem bityutskiy
artem bityutskiy
10
4.52%
1
9.09%
andrew morton
andrew morton
7
3.17%
1
9.09%
maxim levitsky
maxim levitsky
5
2.26%
1
9.09%
ingo molnar
ingo molnar
4
1.81%
1
9.09%
Total
221
100.00%
11
100.00%



static void mtd_blktrans_request(struct request_queue *rq)
{
	struct mtd_blktrans_dev *dev;
	struct request *req = NULL;

	dev = rq->queuedata;

	if (!dev)
		while ((req = blk_fetch_request(rq)) != NULL)
			__blk_end_request_all(req, -ENODEV);
	else
		queue_work(dev->wq, &dev->work);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maxim levitsky
maxim levitsky
40
58.82%
2
40.00%
david woodhouse
david woodhouse
20
29.41%
1
20.00%
ezequiel garcia
ezequiel garcia
6
8.82%
1
20.00%
artem bityutskiy
artem bityutskiy
2
2.94%
1
20.00%
Total
68
100.00%
5
100.00%



static int blktrans_open(struct block_device *bdev, fmode_t mode)
{
	struct mtd_blktrans_dev *dev = blktrans_dev_get(bdev->bd_disk);
	int ret = 0;

	if (!dev)
		return -ERESTARTSYS; /* FIXME: busy loop! -arnd*/

	mutex_lock(&mtd_table_mutex);
	mutex_lock(&dev->lock);

	if (dev->open)
		goto unlock;

	kref_get(&dev->ref);
	__module_get(dev->tr->owner);

	if (!dev->mtd)
		goto unlock;

	if (dev->tr->open) {
		ret = dev->tr->open(dev);
		if (ret)
			goto error_put;
	}

	ret = __get_mtd_device(dev->mtd);
	if (ret)
		goto error_release;
	dev->file_mode = mode;

unlock:
	dev->open++;
	mutex_unlock(&dev->lock);
	mutex_unlock(&mtd_table_mutex);
	blktrans_dev_put(dev);
	return ret;

error_release:
	if (dev->tr->release)
		dev->tr->release(dev);
error_put:
	module_put(dev->tr->owner);
	kref_put(&dev->ref, blktrans_dev_release);
	mutex_unlock(&dev->lock);
	mutex_unlock(&mtd_table_mutex);
	blktrans_dev_put(dev);
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
artem bityutskiy
artem bityutskiy
80
34.48%
1
9.09%
maxim levitsky
maxim levitsky
53
22.84%
2
18.18%
david woodhouse
david woodhouse
52
22.41%
2
18.18%
brian norris
brian norris
32
13.79%
3
27.27%
al viro
al viro
8
3.45%
1
9.09%
alexander stein
alexander stein
6
2.59%
1
9.09%
arnd bergmann
arnd bergmann
1
0.43%
1
9.09%
Total
232
100.00%
11
100.00%



static void blktrans_release(struct gendisk *disk, fmode_t mode)
{
	struct mtd_blktrans_dev *dev = blktrans_dev_get(disk);

	if (!dev)
		return;

	mutex_lock(&mtd_table_mutex);
	mutex_lock(&dev->lock);

	if (--dev->open)
		goto unlock;

	kref_put(&dev->ref, blktrans_dev_release);
	module_put(dev->tr->owner);

	if (dev->mtd) {
		if (dev->tr->release)
			dev->tr->release(dev);
		__put_mtd_device(dev->mtd);
	}
unlock:
	mutex_unlock(&dev->lock);
	mutex_unlock(&mtd_table_mutex);
	blktrans_dev_put(dev);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maxim levitsky
maxim levitsky
64
50.79%
2
22.22%
david woodhouse
david woodhouse
33
26.19%
2
22.22%
brian norris
brian norris
18
14.29%
2
22.22%
al viro
al viro
11
8.73%
3
33.33%
Total
126
100.00%
9
100.00%



static int blktrans_getgeo(struct block_device *bdev, struct hd_geometry *geo)
{
	struct mtd_blktrans_dev *dev = blktrans_dev_get(bdev->bd_disk);
	int ret = -ENXIO;

	if (!dev)
		return ret;

	mutex_lock(&dev->lock);

	if (!dev->mtd)
		goto unlock;

	ret = dev->tr->getgeo ? dev->tr->getgeo(dev, geo) : -ENOTTY;
unlock:
	mutex_unlock(&dev->lock);
	blktrans_dev_put(dev);
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maxim levitsky
maxim levitsky
54
54.00%
1
25.00%
christoph hellwig
christoph hellwig
44
44.00%
1
25.00%
brian norris
brian norris
1
1.00%
1
25.00%
wenlin kang
wenlin kang
1
1.00%
1
25.00%
Total
100
100.00%
4
100.00%



static int blktrans_ioctl(struct block_device *bdev, fmode_t mode,
			      unsigned int cmd, unsigned long arg)
{
	struct mtd_blktrans_dev *dev = blktrans_dev_get(bdev->bd_disk);
	int ret = -ENXIO;

	if (!dev)
		return ret;

	mutex_lock(&dev->lock);

	if (!dev->mtd)
		goto unlock;

	switch (cmd) {
	case BLKFLSBUF:
		ret = dev->tr->flush ? dev->tr->flush(dev) : 0;
		break;
	default:
		ret = -ENOTTY;
	}
unlock:
	mutex_unlock(&dev->lock);
	blktrans_dev_put(dev);
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maxim levitsky
maxim levitsky
62
52.10%
1
20.00%
david woodhouse
david woodhouse
51
42.86%
2
40.00%
al viro
al viro
5
4.20%
1
20.00%
dan carpenter
dan carpenter
1
0.84%
1
20.00%
Total
119
100.00%
5
100.00%


static const struct block_device_operations mtd_block_ops = {
	.owner		= THIS_MODULE,
	.open		= blktrans_open,
	.release	= blktrans_release,
	.ioctl		= blktrans_ioctl,
	.getgeo		= blktrans_getgeo,
};



int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
{
	struct mtd_blktrans_ops *tr = new->tr;
	struct mtd_blktrans_dev *d;
	int last_devnum = -1;
	struct gendisk *gd;
	int ret;

	if (mutex_trylock(&mtd_table_mutex)) {
		mutex_unlock(&mtd_table_mutex);
		BUG();
	}

	mutex_lock(&blktrans_ref_mutex);
	list_for_each_entry(d, &tr->devs, list) {
		if (new->devnum == -1) {
			/* Use first free number */
			if (d->devnum != last_devnum+1) {
				/* Found a free devnum. Plug it in here */
				new->devnum = last_devnum+1;
				list_add_tail(&new->list, &d->list);
				goto added;
			}
		} else if (d->devnum == new->devnum) {
			/* Required number taken */
			mutex_unlock(&blktrans_ref_mutex);
			return -EBUSY;
		} else if (d->devnum > new->devnum) {
			/* Required number was free */
			list_add_tail(&new->list, &d->list);
			goto added;
		}
		last_devnum = d->devnum;
	}

	ret = -EBUSY;
	if (new->devnum == -1)
		new->devnum = last_devnum+1;

	/* Check that the device and any partitions will get valid
         * minor numbers and that the disk naming code below can cope
         * with this number. */
	if (new->devnum > (MINORMASK >> tr->part_bits) ||
	    (tr->part_bits && new->devnum >= 27 * 26)) {
		mutex_unlock(&blktrans_ref_mutex);
		goto error1;
	}

	list_add_tail(&new->list, &tr->devs);
 added:
	mutex_unlock(&blktrans_ref_mutex);

	mutex_init(&new->lock);
	kref_init(&new->ref);
	if (!tr->writesect)
		new->readonly = 1;

	/* Create gendisk */
	ret = -ENOMEM;
	gd = alloc_disk(1 << tr->part_bits);

	if (!gd)
		goto error2;

	new->disk = gd;
	gd->private_data = new;
	gd->major = tr->major;
	gd->first_minor = (new->devnum) << tr->part_bits;
	gd->fops = &mtd_block_ops;

	if (tr->part_bits)
		if (new->devnum < 26)
			snprintf(gd->disk_name, sizeof(gd->disk_name),
				 "%s%c", tr->name, 'a' + new->devnum);
		else
			snprintf(gd->disk_name, sizeof(gd->disk_name),
				 "%s%c%c", tr->name,
				 'a' - 1 + new->devnum / 26,
				 'a' + new->devnum % 26);
	else
		snprintf(gd->disk_name, sizeof(gd->disk_name),
			 "%s%d", tr->name, new->devnum);

	set_capacity(gd, ((u64)new->size * tr->blksize) >> 9);

	/* Create the request queue */
	spin_lock_init(&new->queue_lock);
	new->rq = blk_init_queue(mtd_blktrans_request, &new->queue_lock);

	if (!new->rq)
		goto error3;

	if (tr->flush)
		blk_queue_write_cache(new->rq, true, false);

	new->rq->queuedata = new;
	blk_queue_logical_block_size(new->rq, tr->blksize);

	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, new->rq);
	queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, new->rq);

	if (tr->discard) {
		queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, new->rq);
		blk_queue_max_discard_sectors(new->rq, UINT_MAX);
	}

	gd->queue = new->rq;

	/* Create processing workqueue */
	new->wq = alloc_workqueue("%s%d", 0, 0,
				  tr->name, new->mtd->index);
	if (!new->wq)
		goto error4;
	INIT_WORK(&new->work, mtd_blktrans_work);

	gd->driverfs_dev = &new->mtd->dev;

	if (new->readonly)
		set_disk_ro(gd, 1);

	add_disk(gd);

	if (new->disk_attributes) {
		ret = sysfs_create_group(&disk_to_dev(gd)->kobj,
					new->disk_attributes);
		WARN_ON(ret);
	}
	return 0;
error4:
	blk_cleanup_queue(new->rq);
error3:
	put_disk(new->disk);
error2:
	list_del(&new->list);
error1:
	return ret;
}

Contributors
Person
Tokens
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Commits
CommitProp
david woodhouse
david woodhouse
351
47.18%
4
17.39%
maxim levitsky
maxim levitsky
213
28.63%
4
17.39%
todd poynor
todd poynor
76
10.22%
1
4.35%
ben hutchings
ben hutchings
19
2.55%
1
4.35%
ezequiel garcia
ezequiel garcia
17
2.28%
2
8.70%
roman peniaev
roman peniaev
13
1.75%
1
4.35%
david brownell
david brownell
10
1.34%
1
4.35%
mike snitzer
mike snitzer
9
1.21%
1
4.35%
dan mcgee
dan mcgee
9
1.21%
1
4.35%
jens axboe
jens axboe
8
1.08%
2
8.70%
jarkko lavinen
jarkko lavinen
7
0.94%
1
4.35%
chris malley
chris malley
6
0.81%
1
4.35%
peng fan
peng fan
3
0.40%
1
4.35%
ingo molnar
ingo molnar
2
0.27%
1
4.35%
richard purdie
richard purdie
1
0.13%
1
4.35%
Total
744
100.00%
23
100.00%



int del_mtd_blktrans_dev(struct mtd_blktrans_dev *old)
{
	unsigned long flags;

	if (mutex_trylock(&mtd_table_mutex)) {
		mutex_unlock(&mtd_table_mutex);
		BUG();
	}

	if (old->disk_attributes)
		sysfs_remove_group(&disk_to_dev(old->disk)->kobj,
						old->disk_attributes);

	/* Stop new requests to arrive */
	del_gendisk(old->disk);

	/* Stop workqueue. This will perform any pending request. */
	destroy_workqueue(old->wq);

	/* Kill current requests */
	spin_lock_irqsave(&old->queue_lock, flags);
	old->rq->queuedata = NULL;
	blk_start_queue(old->rq);
	spin_unlock_irqrestore(&old->queue_lock, flags);

	/* If the device is currently open, tell trans driver to close it,
                then put mtd device, and don't touch it again */
	mutex_lock(&old->lock);
	if (old->open) {
		if (old->tr->release)
			old->tr->release(old);
		__put_mtd_device(old->mtd);
	}

	old->mtd = NULL;

	mutex_unlock(&old->lock);
	blktrans_dev_put(old);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
maxim levitsky
maxim levitsky
122
71.35%
5
62.50%
david woodhouse
david woodhouse
44
25.73%
1
12.50%
ezequiel garcia
ezequiel garcia
3
1.75%
1
12.50%
ingo molnar
ingo molnar
2
1.17%
1
12.50%
Total
171
100.00%
8
100.00%



static void blktrans_notify_remove(struct mtd_info *mtd)
{
	struct mtd_blktrans_ops *tr;
	struct mtd_blktrans_dev *dev, *next;

	list_for_each_entry(tr, &blktrans_majors, list)
		list_for_each_entry_safe(dev, next, &tr->devs, list)
			if (dev->mtd == mtd)
				tr->remove_dev(dev);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
david woodhouse
david woodhouse
45
78.95%
2
66.67%
chris malley
chris malley
12
21.05%
1
33.33%
Total
57
100.00%
3
100.00%



static void blktrans_notify_add(struct mtd_info *mtd)
{
	struct mtd_blktrans_ops *tr;

	if (mtd->type == MTD_ABSENT)
		return;

	list_for_each_entry(tr, &blktrans_majors, list)
		tr->add_mtd(tr, mtd);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
david woodhouse
david woodhouse
37
88.10%
2
66.67%
chris malley
chris malley
5
11.90%
1
33.33%
Total
42
100.00%
3
100.00%


static struct mtd_notifier blktrans_notifier = {
	.add = blktrans_notify_add,
	.remove = blktrans_notify_remove,
};



int register_mtd_blktrans(struct mtd_blktrans_ops *tr)
{
	struct mtd_info *mtd;
	int ret;

	/* Register the notifier if/when the first device type is
           registered, to prevent the link/init ordering from fucking
           us over. */
	if (!blktrans_notifier.list.next)
		register_mtd_user(&blktrans_notifier);


	mutex_lock(&mtd_table_mutex);

	ret = register_blkdev(tr->major, tr->name);
	if (ret < 0) {
		printk(KERN_WARNING "Unable to register %s block device on major %d: %d\n",
		       tr->name, tr->major, ret);
		mutex_unlock(&mtd_table_mutex);
		return ret;
	}

	if (ret)
		tr->major = ret;

	tr->blkshift = ffs(tr->blksize) - 1;

	INIT_LIST_HEAD(&tr->devs);
	list_add(&tr->list, &blktrans_majors);

	mtd_for_each_device(mtd)
		if (mtd->type != MTD_ABSENT)
			tr->add_mtd(tr, mtd);

	mutex_unlock(&mtd_table_mutex);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
david woodhouse
david woodhouse
118
74.68%
1
16.67%
richard purdie
richard purdie
13
8.23%
1
16.67%
frank li
frank li
12
7.59%
1
16.67%
ben hutchings
ben hutchings
11
6.96%
1
16.67%
ingo molnar
ingo molnar
3
1.90%
1
16.67%
thomas gleixner
thomas gleixner
1
0.63%
1
16.67%
Total
158
100.00%
6
100.00%



int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr)
{
	struct mtd_blktrans_dev *dev, *next;

	mutex_lock(&mtd_table_mutex);

	/* Remove it from the list of active majors */
	list_del(&tr->list);

	list_for_each_entry_safe(dev, next, &tr->devs, list)
		tr->remove_dev(dev);

	unregister_blkdev(tr->major, tr->name);
	mutex_unlock(&mtd_table_mutex);

	BUG_ON(!list_empty(&tr->devs));
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
david woodhouse
david woodhouse
72
87.80%
1
25.00%
chris malley
chris malley
5
6.10%
1
25.00%
eric sesterhenn
eric sesterhenn
3
3.66%
1
25.00%
ingo molnar
ingo molnar
2
2.44%
1
25.00%
Total
82
100.00%
4
100.00%



static void __exit mtd_blktrans_exit(void)
{
	/* No race here -- if someone's currently in register_mtd_blktrans
           we're screwed anyway. */
	if (blktrans_notifier.list.next)
		unregister_mtd_user(&blktrans_notifier);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
david woodhouse
david woodhouse
24
100.00%
1
100.00%
Total
24
100.00%
1
100.00%


module_exit(mtd_blktrans_exit);


EXPORT_SYMBOL_GPL(register_mtd_blktrans);

EXPORT_SYMBOL_GPL(deregister_mtd_blktrans);

EXPORT_SYMBOL_GPL(add_mtd_blktrans_dev);

EXPORT_SYMBOL_GPL(del_mtd_blktrans_dev);

MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Common interface to block layer for MTD 'translation layers'");
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
david woodhouse
david woodhouse
1201
44.35%
7
10.94%
maxim levitsky
maxim levitsky
768
28.36%
7
10.94%
jarkko lavinen
jarkko lavinen
97
3.58%
2
3.12%
artem bityutskiy
artem bityutskiy
93
3.43%
2
3.12%
todd poynor
todd poynor
76
2.81%
1
1.56%
christoph hellwig
christoph hellwig
73
2.70%
3
4.69%
brian norris
brian norris
51
1.88%
4
6.25%
tejun heo
tejun heo
48
1.77%
5
7.81%
ezequiel garcia
ezequiel garcia
43
1.59%
2
3.12%
richard purdie
richard purdie
32
1.18%
1
1.56%
ben hutchings
ben hutchings
30
1.11%
2
3.12%
roman peniaev
roman peniaev
29
1.07%
1
1.56%
chris malley
chris malley
28
1.03%
1
1.56%
al viro
al viro
26
0.96%
3
4.69%
ingo molnar
ingo molnar
14
0.52%
1
1.56%
frank li
frank li
12
0.44%
1
1.56%
jens axboe
jens axboe
12
0.44%
3
4.69%
david brownell
david brownell
10
0.37%
1
1.56%
ilya loginov
ilya loginov
10
0.37%
1
1.56%
dan mcgee
dan mcgee
9
0.33%
1
1.56%
mike snitzer
mike snitzer
9
0.33%
1
1.56%
andrew morton
andrew morton
7
0.26%
1
1.56%
tomer barletz
tomer barletz
6
0.22%
1
1.56%
alexander stein
alexander stein
6
0.22%
1
1.56%
ben dooks
ben dooks
4
0.15%
2
3.12%
eric sesterhenn
eric sesterhenn
3
0.11%
1
1.56%
peng fan
peng fan
3
0.11%
1
1.56%
arnd bergmann
arnd bergmann
2
0.07%
2
3.12%
h hartley sweeten
h hartley sweeten
2
0.07%
1
1.56%
thomas gleixner
thomas gleixner
1
0.04%
1
1.56%
alexey dobriyan
alexey dobriyan
1
0.04%
1
1.56%
wenlin kang
wenlin kang
1
0.04%
1
1.56%
dan carpenter
dan carpenter
1
0.04%
1
1.56%
Total
2708
100.00%
64
100.00%
  
Directory: drivers/mtd

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