1 files changed, 0 insertions, 426 deletions

diff --git a/libdde-linux26/libdde_linux26/contrib/block/blk-sysfs.c b/libdde-linux26/libdde_linux26/contrib/block/blk-sysfs.c
deleted file mode 100644
index e29ddfc7..00000000
--- a/libdde-linux26/libdde_linux26/contrib/block/blk-sysfs.c
+++ /dev/null
@@ -1,426 +0,0 @@
-/*
- * Functions related to sysfs handling
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/bio.h>
-#include <linux/blkdev.h>
-#include <linux/blktrace_api.h>
-
-#include "blk.h"
-
-struct queue_sysfs_entry {
-	struct attribute attr;
-	ssize_t (*show)(struct request_queue *, char *);
-	ssize_t (*store)(struct request_queue *, const char *, size_t);
-};
-
-static ssize_t
-queue_var_show(unsigned int var, char *page)
-{
-	return sprintf(page, "%d\n", var);
-}
-
-static ssize_t
-queue_var_store(unsigned long *var, const char *page, size_t count)
-{
-	char *p = (char *) page;
-
-	*var = simple_strtoul(p, &p, 10);
-	return count;
-}
-
-static ssize_t queue_requests_show(struct request_queue *q, char *page)
-{
-	return queue_var_show(q->nr_requests, (page));
-}
-
-static ssize_t
-queue_requests_store(struct request_queue *q, const char *page, size_t count)
-{
-	struct request_list *rl = &q->rq;
-	unsigned long nr;
-	int ret = queue_var_store(&nr, page, count);
-	if (nr < BLKDEV_MIN_RQ)
-		nr = BLKDEV_MIN_RQ;
-
-	spin_lock_irq(q->queue_lock);
-	q->nr_requests = nr;
-	blk_queue_congestion_threshold(q);
-
-	if (rl->count[READ] >= queue_congestion_on_threshold(q))
-		blk_set_queue_congested(q, READ);
-	else if (rl->count[READ] < queue_congestion_off_threshold(q))
-		blk_clear_queue_congested(q, READ);
-
-	if (rl->count[WRITE] >= queue_congestion_on_threshold(q))
-		blk_set_queue_congested(q, WRITE);
-	else if (rl->count[WRITE] < queue_congestion_off_threshold(q))
-		blk_clear_queue_congested(q, WRITE);
-
-	if (rl->count[READ] >= q->nr_requests) {
-		blk_set_queue_full(q, READ);
-	} else if (rl->count[READ]+1 <= q->nr_requests) {
-		blk_clear_queue_full(q, READ);
-		wake_up(&rl->wait[READ]);
-	}
-
-	if (rl->count[WRITE] >= q->nr_requests) {
-		blk_set_queue_full(q, WRITE);
-	} else if (rl->count[WRITE]+1 <= q->nr_requests) {
-		blk_clear_queue_full(q, WRITE);
-		wake_up(&rl->wait[WRITE]);
-	}
-	spin_unlock_irq(q->queue_lock);
-	return ret;
-}
-
-static ssize_t queue_ra_show(struct request_queue *q, char *page)
-{
-	int ra_kb = q->backing_dev_info.ra_pages << (PAGE_CACHE_SHIFT - 10);
-
-	return queue_var_show(ra_kb, (page));
-}
-
-static ssize_t
-queue_ra_store(struct request_queue *q, const char *page, size_t count)
-{
-	unsigned long ra_kb;
-	ssize_t ret = queue_var_store(&ra_kb, page, count);
-
-	q->backing_dev_info.ra_pages = ra_kb >> (PAGE_CACHE_SHIFT - 10);
-
-	return ret;
-}
-
-static ssize_t queue_max_sectors_show(struct request_queue *q, char *page)
-{
-	int max_sectors_kb = q->max_sectors >> 1;
-
-	return queue_var_show(max_sectors_kb, (page));
-}
-
-static ssize_t queue_hw_sector_size_show(struct request_queue *q, char *page)
-{
-	return queue_var_show(q->hardsect_size, page);
-}
-
-static ssize_t
-queue_max_sectors_store(struct request_queue *q, const char *page, size_t count)
-{
-	unsigned long max_sectors_kb,
-			max_hw_sectors_kb = q->max_hw_sectors >> 1,
-			page_kb = 1 << (PAGE_CACHE_SHIFT - 10);
-	ssize_t ret = queue_var_store(&max_sectors_kb, page, count);
-
-	if (max_sectors_kb > max_hw_sectors_kb || max_sectors_kb < page_kb)
-		return -EINVAL;
-
-	spin_lock_irq(q->queue_lock);
-	q->max_sectors = max_sectors_kb << 1;
-	spin_unlock_irq(q->queue_lock);
-
-	return ret;
-}
-
-static ssize_t queue_max_hw_sectors_show(struct request_queue *q, char *page)
-{
-	int max_hw_sectors_kb = q->max_hw_sectors >> 1;
-
-	return queue_var_show(max_hw_sectors_kb, (page));
-}
-
-static ssize_t queue_nonrot_show(struct request_queue *q, char *page)
-{
-	return queue_var_show(!blk_queue_nonrot(q), page);
-}
-
-static ssize_t queue_nonrot_store(struct request_queue *q, const char *page,
-				  size_t count)
-{
-	unsigned long nm;
-	ssize_t ret = queue_var_store(&nm, page, count);
-
-	spin_lock_irq(q->queue_lock);
-	if (nm)
-		queue_flag_clear(QUEUE_FLAG_NONROT, q);
-	else
-		queue_flag_set(QUEUE_FLAG_NONROT, q);
-	spin_unlock_irq(q->queue_lock);
-
-	return ret;
-}
-
-static ssize_t queue_nomerges_show(struct request_queue *q, char *page)
-{
-	return queue_var_show(blk_queue_nomerges(q), page);
-}
-
-static ssize_t queue_nomerges_store(struct request_queue *q, const char *page,
-				    size_t count)
-{
-	unsigned long nm;
-	ssize_t ret = queue_var_store(&nm, page, count);
-
-	spin_lock_irq(q->queue_lock);
-	if (nm)
-		queue_flag_set(QUEUE_FLAG_NOMERGES, q);
-	else
-		queue_flag_clear(QUEUE_FLAG_NOMERGES, q);
-	spin_unlock_irq(q->queue_lock);
-
-	return ret;
-}
-
-static ssize_t queue_rq_affinity_show(struct request_queue *q, char *page)
-{
-	unsigned int set = test_bit(QUEUE_FLAG_SAME_COMP, &q->queue_flags);
-
-	return queue_var_show(set != 0, page);
-}
-
-static ssize_t
-queue_rq_affinity_store(struct request_queue *q, const char *page, size_t count)
-{
-	ssize_t ret = -EINVAL;
-#if defined(CONFIG_USE_GENERIC_SMP_HELPERS)
-	unsigned long val;
-
-	ret = queue_var_store(&val, page, count);
-	spin_lock_irq(q->queue_lock);
-	if (val)
-		queue_flag_set(QUEUE_FLAG_SAME_COMP, q);
-	else
-		queue_flag_clear(QUEUE_FLAG_SAME_COMP,  q);
-	spin_unlock_irq(q->queue_lock);
-#endif
-	return ret;
-}
-
-static ssize_t queue_iostats_show(struct request_queue *q, char *page)
-{
-	return queue_var_show(blk_queue_io_stat(q), page);
-}
-
-static ssize_t queue_iostats_store(struct request_queue *q, const char *page,
-				   size_t count)
-{
-	unsigned long stats;
-	ssize_t ret = queue_var_store(&stats, page, count);
-
-	spin_lock_irq(q->queue_lock);
-	if (stats)
-		queue_flag_set(QUEUE_FLAG_IO_STAT, q);
-	else
-		queue_flag_clear(QUEUE_FLAG_IO_STAT, q);
-	spin_unlock_irq(q->queue_lock);
-
-	return ret;
-}
-
-static struct queue_sysfs_entry queue_requests_entry = {
-	.attr = {.name = "nr_requests", .mode = S_IRUGO | S_IWUSR },
-	.show = queue_requests_show,
-	.store = queue_requests_store,
-};
-
-static struct queue_sysfs_entry queue_ra_entry = {
-	.attr = {.name = "read_ahead_kb", .mode = S_IRUGO | S_IWUSR },
-	.show = queue_ra_show,
-	.store = queue_ra_store,
-};
-
-static struct queue_sysfs_entry queue_max_sectors_entry = {
-	.attr = {.name = "max_sectors_kb", .mode = S_IRUGO | S_IWUSR },
-	.show = queue_max_sectors_show,
-	.store = queue_max_sectors_store,
-};
-
-static struct queue_sysfs_entry queue_max_hw_sectors_entry = {
-	.attr = {.name = "max_hw_sectors_kb", .mode = S_IRUGO },
-	.show = queue_max_hw_sectors_show,
-};
-
-static struct queue_sysfs_entry queue_iosched_entry = {
-	.attr = {.name = "scheduler", .mode = S_IRUGO | S_IWUSR },
-	.show = elv_iosched_show,
-	.store = elv_iosched_store,
-};
-
-static struct queue_sysfs_entry queue_hw_sector_size_entry = {
-	.attr = {.name = "hw_sector_size", .mode = S_IRUGO },
-	.show = queue_hw_sector_size_show,
-};
-
-static struct queue_sysfs_entry queue_nonrot_entry = {
-	.attr = {.name = "rotational", .mode = S_IRUGO | S_IWUSR },
-	.show = queue_nonrot_show,
-	.store = queue_nonrot_store,
-};
-
-static struct queue_sysfs_entry queue_nomerges_entry = {
-	.attr = {.name = "nomerges", .mode = S_IRUGO | S_IWUSR },
-	.show = queue_nomerges_show,
-	.store = queue_nomerges_store,
-};
-
-static struct queue_sysfs_entry queue_rq_affinity_entry = {
-	.attr = {.name = "rq_affinity", .mode = S_IRUGO | S_IWUSR },
-	.show = queue_rq_affinity_show,
-	.store = queue_rq_affinity_store,
-};
-
-static struct queue_sysfs_entry queue_iostats_entry = {
-	.attr = {.name = "iostats", .mode = S_IRUGO | S_IWUSR },
-	.show = queue_iostats_show,
-	.store = queue_iostats_store,
-};
-
-static struct attribute *default_attrs[] = {
-	&queue_requests_entry.attr,
-	&queue_ra_entry.attr,
-	&queue_max_hw_sectors_entry.attr,
-	&queue_max_sectors_entry.attr,
-	&queue_iosched_entry.attr,
-	&queue_hw_sector_size_entry.attr,
-	&queue_nonrot_entry.attr,
-	&queue_nomerges_entry.attr,
-	&queue_rq_affinity_entry.attr,
-	&queue_iostats_entry.attr,
-	NULL,
-};
-
-#define to_queue(atr) container_of((atr), struct queue_sysfs_entry, attr)
-
-static ssize_t
-queue_attr_show(struct kobject *kobj, struct attribute *attr, char *page)
-{
-	struct queue_sysfs_entry *entry = to_queue(attr);
-	struct request_queue *q =
-		container_of(kobj, struct request_queue, kobj);
-	ssize_t res;
-
-	if (!entry->show)
-		return -EIO;
-	mutex_lock(&q->sysfs_lock);
-	if (test_bit(QUEUE_FLAG_DEAD, &q->queue_flags)) {
-		mutex_unlock(&q->sysfs_lock);
-		return -ENOENT;
-	}
-	res = entry->show(q, page);
-	mutex_unlock(&q->sysfs_lock);
-	return res;
-}
-
-static ssize_t
-queue_attr_store(struct kobject *kobj, struct attribute *attr,
-		    const char *page, size_t length)
-{
-	struct queue_sysfs_entry *entry = to_queue(attr);
-	struct request_queue *q;
-	ssize_t res;
-
-	if (!entry->store)
-		return -EIO;
-
-	q = container_of(kobj, struct request_queue, kobj);
-	mutex_lock(&q->sysfs_lock);
-	if (test_bit(QUEUE_FLAG_DEAD, &q->queue_flags)) {
-		mutex_unlock(&q->sysfs_lock);
-		return -ENOENT;
-	}
-	res = entry->store(q, page, length);
-	mutex_unlock(&q->sysfs_lock);
-	return res;
-}
-
-/**
- * blk_cleanup_queue: - release a &struct request_queue when it is no longer needed
- * @kobj:    the kobj belonging of the request queue to be released
- *
- * Description:
- *     blk_cleanup_queue is the pair to blk_init_queue() or
- *     blk_queue_make_request().  It should be called when a request queue is
- *     being released; typically when a block device is being de-registered.
- *     Currently, its primary task it to free all the &struct request
- *     structures that were allocated to the queue and the queue itself.
- *
- * Caveat:
- *     Hopefully the low level driver will have finished any
- *     outstanding requests first...
- **/
-static void blk_release_queue(struct kobject *kobj)
-{
-	struct request_queue *q =
-		container_of(kobj, struct request_queue, kobj);
-	struct request_list *rl = &q->rq;
-
-	blk_sync_queue(q);
-
-	if (rl->rq_pool)
-		mempool_destroy(rl->rq_pool);
-
-	if (q->queue_tags)
-		__blk_queue_free_tags(q);
-
-	blk_trace_shutdown(q);
-
-	bdi_destroy(&q->backing_dev_info);
-	kmem_cache_free(blk_requestq_cachep, q);
-}
-
-static struct sysfs_ops queue_sysfs_ops = {
-	.show	= queue_attr_show,
-	.store	= queue_attr_store,
-};
-
-struct kobj_type blk_queue_ktype = {
-	.sysfs_ops	= &queue_sysfs_ops,
-	.default_attrs	= default_attrs,
-	.release	= blk_release_queue,
-};
-
-int blk_register_queue(struct gendisk *disk)
-{
-	int ret;
-
-	struct request_queue *q = disk->queue;
-
-	if (WARN_ON(!q))
-		return -ENXIO;
-
-	if (!q->request_fn)
-		return 0;
-
-	ret = kobject_add(&q->kobj, kobject_get(&disk_to_dev(disk)->kobj),
-			  "%s", "queue");
-	if (ret < 0)
-		return ret;
-
-	kobject_uevent(&q->kobj, KOBJ_ADD);
-
-	ret = elv_register_queue(q);
-	if (ret) {
-		kobject_uevent(&q->kobj, KOBJ_REMOVE);
-		kobject_del(&q->kobj);
-		return ret;
-	}
-
-	return 0;
-}
-
-void blk_unregister_queue(struct gendisk *disk)
-{
-	struct request_queue *q = disk->queue;
-
-	if (WARN_ON(!q))
-		return;
-
-	if (q->request_fn) {
-		elv_unregister_queue(q);
-
-		kobject_uevent(&q->kobj, KOBJ_REMOVE);
-		kobject_del(&q->kobj);
-		kobject_put(&disk_to_dev(disk)->kobj);
-	}
-}