Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 448 deletions

diff --git a/ANDROID_3.4.5/block/blk-integrity.c b/ANDROID_3.4.5/block/blk-integrity.c
deleted file mode 100644
index da2a818c..00000000
--- a/ANDROID_3.4.5/block/blk-integrity.c
+++ /dev/null
@@ -1,448 +0,0 @@
-/*
- * blk-integrity.c - Block layer data integrity extensions
- *
- * Copyright (C) 2007, 2008 Oracle Corporation
- * Written by: Martin K. Petersen <martin.petersen@oracle.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * 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; see the file COPYING.  If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
- * USA.
- *
- */
-
-#include <linux/blkdev.h>
-#include <linux/mempool.h>
-#include <linux/bio.h>
-#include <linux/scatterlist.h>
-#include <linux/export.h>
-#include <linux/slab.h>
-
-#include "blk.h"
-
-static struct kmem_cache *integrity_cachep;
-
-static const char *bi_unsupported_name = "unsupported";
-
-/**
- * blk_rq_count_integrity_sg - Count number of integrity scatterlist elements
- * @q:		request queue
- * @bio:	bio with integrity metadata attached
- *
- * Description: Returns the number of elements required in a
- * scatterlist corresponding to the integrity metadata in a bio.
- */
-int blk_rq_count_integrity_sg(struct request_queue *q, struct bio *bio)
-{
-	struct bio_vec *iv, *ivprv = NULL;
-	unsigned int segments = 0;
-	unsigned int seg_size = 0;
-	unsigned int i = 0;
-
-	bio_for_each_integrity_vec(iv, bio, i) {
-
-		if (ivprv) {
-			if (!BIOVEC_PHYS_MERGEABLE(ivprv, iv))
-				goto new_segment;
-
-			if (!BIOVEC_SEG_BOUNDARY(q, ivprv, iv))
-				goto new_segment;
-
-			if (seg_size + iv->bv_len > queue_max_segment_size(q))
-				goto new_segment;
-
-			seg_size += iv->bv_len;
-		} else {
-new_segment:
-			segments++;
-			seg_size = iv->bv_len;
-		}
-
-		ivprv = iv;
-	}
-
-	return segments;
-}
-EXPORT_SYMBOL(blk_rq_count_integrity_sg);
-
-/**
- * blk_rq_map_integrity_sg - Map integrity metadata into a scatterlist
- * @q:		request queue
- * @bio:	bio with integrity metadata attached
- * @sglist:	target scatterlist
- *
- * Description: Map the integrity vectors in request into a
- * scatterlist.  The scatterlist must be big enough to hold all
- * elements.  I.e. sized using blk_rq_count_integrity_sg().
- */
-int blk_rq_map_integrity_sg(struct request_queue *q, struct bio *bio,
-			    struct scatterlist *sglist)
-{
-	struct bio_vec *iv, *ivprv = NULL;
-	struct scatterlist *sg = NULL;
-	unsigned int segments = 0;
-	unsigned int i = 0;
-
-	bio_for_each_integrity_vec(iv, bio, i) {
-
-		if (ivprv) {
-			if (!BIOVEC_PHYS_MERGEABLE(ivprv, iv))
-				goto new_segment;
-
-			if (!BIOVEC_SEG_BOUNDARY(q, ivprv, iv))
-				goto new_segment;
-
-			if (sg->length + iv->bv_len > queue_max_segment_size(q))
-				goto new_segment;
-
-			sg->length += iv->bv_len;
-		} else {
-new_segment:
-			if (!sg)
-				sg = sglist;
-			else {
-				sg->page_link &= ~0x02;
-				sg = sg_next(sg);
-			}
-
-			sg_set_page(sg, iv->bv_page, iv->bv_len, iv->bv_offset);
-			segments++;
-		}
-
-		ivprv = iv;
-	}
-
-	if (sg)
-		sg_mark_end(sg);
-
-	return segments;
-}
-EXPORT_SYMBOL(blk_rq_map_integrity_sg);
-
-/**
- * blk_integrity_compare - Compare integrity profile of two disks
- * @gd1:	Disk to compare
- * @gd2:	Disk to compare
- *
- * Description: Meta-devices like DM and MD need to verify that all
- * sub-devices use the same integrity format before advertising to
- * upper layers that they can send/receive integrity metadata.  This
- * function can be used to check whether two gendisk devices have
- * compatible integrity formats.
- */
-int blk_integrity_compare(struct gendisk *gd1, struct gendisk *gd2)
-{
-	struct blk_integrity *b1 = gd1->integrity;
-	struct blk_integrity *b2 = gd2->integrity;
-
-	if (!b1 && !b2)
-		return 0;
-
-	if (!b1 || !b2)
-		return -1;
-
-	if (b1->sector_size != b2->sector_size) {
-		printk(KERN_ERR "%s: %s/%s sector sz %u != %u\n", __func__,
-		       gd1->disk_name, gd2->disk_name,
-		       b1->sector_size, b2->sector_size);
-		return -1;
-	}
-
-	if (b1->tuple_size != b2->tuple_size) {
-		printk(KERN_ERR "%s: %s/%s tuple sz %u != %u\n", __func__,
-		       gd1->disk_name, gd2->disk_name,
-		       b1->tuple_size, b2->tuple_size);
-		return -1;
-	}
-
-	if (b1->tag_size && b2->tag_size && (b1->tag_size != b2->tag_size)) {
-		printk(KERN_ERR "%s: %s/%s tag sz %u != %u\n", __func__,
-		       gd1->disk_name, gd2->disk_name,
-		       b1->tag_size, b2->tag_size);
-		return -1;
-	}
-
-	if (strcmp(b1->name, b2->name)) {
-		printk(KERN_ERR "%s: %s/%s type %s != %s\n", __func__,
-		       gd1->disk_name, gd2->disk_name,
-		       b1->name, b2->name);
-		return -1;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(blk_integrity_compare);
-
-int blk_integrity_merge_rq(struct request_queue *q, struct request *req,
-			   struct request *next)
-{
-	if (blk_integrity_rq(req) != blk_integrity_rq(next))
-		return -1;
-
-	if (req->nr_integrity_segments + next->nr_integrity_segments >
-	    q->limits.max_integrity_segments)
-		return -1;
-
-	return 0;
-}
-EXPORT_SYMBOL(blk_integrity_merge_rq);
-
-int blk_integrity_merge_bio(struct request_queue *q, struct request *req,
-			    struct bio *bio)
-{
-	int nr_integrity_segs;
-	struct bio *next = bio->bi_next;
-
-	bio->bi_next = NULL;
-	nr_integrity_segs = blk_rq_count_integrity_sg(q, bio);
-	bio->bi_next = next;
-
-	if (req->nr_integrity_segments + nr_integrity_segs >
-	    q->limits.max_integrity_segments)
-		return -1;
-
-	req->nr_integrity_segments += nr_integrity_segs;
-
-	return 0;
-}
-EXPORT_SYMBOL(blk_integrity_merge_bio);
-
-struct integrity_sysfs_entry {
-	struct attribute attr;
-	ssize_t (*show)(struct blk_integrity *, char *);
-	ssize_t (*store)(struct blk_integrity *, const char *, size_t);
-};
-
-static ssize_t integrity_attr_show(struct kobject *kobj, struct attribute *attr,
-				   char *page)
-{
-	struct blk_integrity *bi =
-		container_of(kobj, struct blk_integrity, kobj);
-	struct integrity_sysfs_entry *entry =
-		container_of(attr, struct integrity_sysfs_entry, attr);
-
-	return entry->show(bi, page);
-}
-
-static ssize_t integrity_attr_store(struct kobject *kobj,
-				    struct attribute *attr, const char *page,
-				    size_t count)
-{
-	struct blk_integrity *bi =
-		container_of(kobj, struct blk_integrity, kobj);
-	struct integrity_sysfs_entry *entry =
-		container_of(attr, struct integrity_sysfs_entry, attr);
-	ssize_t ret = 0;
-
-	if (entry->store)
-		ret = entry->store(bi, page, count);
-
-	return ret;
-}
-
-static ssize_t integrity_format_show(struct blk_integrity *bi, char *page)
-{
-	if (bi != NULL && bi->name != NULL)
-		return sprintf(page, "%s\n", bi->name);
-	else
-		return sprintf(page, "none\n");
-}
-
-static ssize_t integrity_tag_size_show(struct blk_integrity *bi, char *page)
-{
-	if (bi != NULL)
-		return sprintf(page, "%u\n", bi->tag_size);
-	else
-		return sprintf(page, "0\n");
-}
-
-static ssize_t integrity_read_store(struct blk_integrity *bi,
-				    const char *page, size_t count)
-{
-	char *p = (char *) page;
-	unsigned long val = simple_strtoul(p, &p, 10);
-
-	if (val)
-		bi->flags |= INTEGRITY_FLAG_READ;
-	else
-		bi->flags &= ~INTEGRITY_FLAG_READ;
-
-	return count;
-}
-
-static ssize_t integrity_read_show(struct blk_integrity *bi, char *page)
-{
-	return sprintf(page, "%d\n", (bi->flags & INTEGRITY_FLAG_READ) != 0);
-}
-
-static ssize_t integrity_write_store(struct blk_integrity *bi,
-				     const char *page, size_t count)
-{
-	char *p = (char *) page;
-	unsigned long val = simple_strtoul(p, &p, 10);
-
-	if (val)
-		bi->flags |= INTEGRITY_FLAG_WRITE;
-	else
-		bi->flags &= ~INTEGRITY_FLAG_WRITE;
-
-	return count;
-}
-
-static ssize_t integrity_write_show(struct blk_integrity *bi, char *page)
-{
-	return sprintf(page, "%d\n", (bi->flags & INTEGRITY_FLAG_WRITE) != 0);
-}
-
-static struct integrity_sysfs_entry integrity_format_entry = {
-	.attr = { .name = "format", .mode = S_IRUGO },
-	.show = integrity_format_show,
-};
-
-static struct integrity_sysfs_entry integrity_tag_size_entry = {
-	.attr = { .name = "tag_size", .mode = S_IRUGO },
-	.show = integrity_tag_size_show,
-};
-
-static struct integrity_sysfs_entry integrity_read_entry = {
-	.attr = { .name = "read_verify", .mode = S_IRUGO | S_IWUSR },
-	.show = integrity_read_show,
-	.store = integrity_read_store,
-};
-
-static struct integrity_sysfs_entry integrity_write_entry = {
-	.attr = { .name = "write_generate", .mode = S_IRUGO | S_IWUSR },
-	.show = integrity_write_show,
-	.store = integrity_write_store,
-};
-
-static struct attribute *integrity_attrs[] = {
-	&integrity_format_entry.attr,
-	&integrity_tag_size_entry.attr,
-	&integrity_read_entry.attr,
-	&integrity_write_entry.attr,
-	NULL,
-};
-
-static const struct sysfs_ops integrity_ops = {
-	.show	= &integrity_attr_show,
-	.store	= &integrity_attr_store,
-};
-
-static int __init blk_dev_integrity_init(void)
-{
-	integrity_cachep = kmem_cache_create("blkdev_integrity",
-					     sizeof(struct blk_integrity),
-					     0, SLAB_PANIC, NULL);
-	return 0;
-}
-subsys_initcall(blk_dev_integrity_init);
-
-static void blk_integrity_release(struct kobject *kobj)
-{
-	struct blk_integrity *bi =
-		container_of(kobj, struct blk_integrity, kobj);
-
-	kmem_cache_free(integrity_cachep, bi);
-}
-
-static struct kobj_type integrity_ktype = {
-	.default_attrs	= integrity_attrs,
-	.sysfs_ops	= &integrity_ops,
-	.release	= blk_integrity_release,
-};
-
-bool blk_integrity_is_initialized(struct gendisk *disk)
-{
-	struct blk_integrity *bi = blk_get_integrity(disk);
-
-	return (bi && bi->name && strcmp(bi->name, bi_unsupported_name) != 0);
-}
-EXPORT_SYMBOL(blk_integrity_is_initialized);
-
-/**
- * blk_integrity_register - Register a gendisk as being integrity-capable
- * @disk:	struct gendisk pointer to make integrity-aware
- * @template:	optional integrity profile to register
- *
- * Description: When a device needs to advertise itself as being able
- * to send/receive integrity metadata it must use this function to
- * register the capability with the block layer.  The template is a
- * blk_integrity struct with values appropriate for the underlying
- * hardware.  If template is NULL the new profile is allocated but
- * not filled out. See Documentation/block/data-integrity.txt.
- */
-int blk_integrity_register(struct gendisk *disk, struct blk_integrity *template)
-{
-	struct blk_integrity *bi;
-
-	BUG_ON(disk == NULL);
-
-	if (disk->integrity == NULL) {
-		bi = kmem_cache_alloc(integrity_cachep,
-				      GFP_KERNEL | __GFP_ZERO);
-		if (!bi)
-			return -1;
-
-		if (kobject_init_and_add(&bi->kobj, &integrity_ktype,
-					 &disk_to_dev(disk)->kobj,
-					 "%s", "integrity")) {
-			kmem_cache_free(integrity_cachep, bi);
-			return -1;
-		}
-
-		kobject_uevent(&bi->kobj, KOBJ_ADD);
-
-		bi->flags |= INTEGRITY_FLAG_READ | INTEGRITY_FLAG_WRITE;
-		bi->sector_size = queue_logical_block_size(disk->queue);
-		disk->integrity = bi;
-	} else
-		bi = disk->integrity;
-
-	/* Use the provided profile as template */
-	if (template != NULL) {
-		bi->name = template->name;
-		bi->generate_fn = template->generate_fn;
-		bi->verify_fn = template->verify_fn;
-		bi->tuple_size = template->tuple_size;
-		bi->set_tag_fn = template->set_tag_fn;
-		bi->get_tag_fn = template->get_tag_fn;
-		bi->tag_size = template->tag_size;
-	} else
-		bi->name = bi_unsupported_name;
-
-	return 0;
-}
-EXPORT_SYMBOL(blk_integrity_register);
-
-/**
- * blk_integrity_unregister - Remove block integrity profile
- * @disk:	disk whose integrity profile to deallocate
- *
- * Description: This function frees all memory used by the block
- * integrity profile.  To be called at device teardown.
- */
-void blk_integrity_unregister(struct gendisk *disk)
-{
-	struct blk_integrity *bi;
-
-	if (!disk || !disk->integrity)
-		return;
-
-	bi = disk->integrity;
-
-	kobject_uevent(&bi->kobj, KOBJ_REMOVE);
-	kobject_del(&bi->kobj);
-	kobject_put(&bi->kobj);
-	disk->integrity = NULL;
-}
-EXPORT_SYMBOL(blk_integrity_unregister);