*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/ioctl.h>
#include <linux/init.h>
#include <linux/mtd/compatmac.h>
-#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
-#endif
#include <linux/mtd/mtd.h>
/* These are exported solely for the purpose of mtd_blkdevs.c. You
should not use them for _anything_ else */
-DECLARE_MUTEX(mtd_table_mutex);
+DEFINE_MUTEX(mtd_table_mutex);
struct mtd_info *mtd_table[MAX_MTD_DEVICES];
EXPORT_SYMBOL_GPL(mtd_table_mutex);
{
int i;
- down(&mtd_table_mutex);
+ BUG_ON(mtd->writesize == 0);
+ mutex_lock(&mtd_table_mutex);
for (i=0; i < MAX_MTD_DEVICES; i++)
if (!mtd_table[i]) {
not->add(mtd);
}
- up(&mtd_table_mutex);
+ mutex_unlock(&mtd_table_mutex);
/* We _know_ we aren't being removed, because
our caller is still holding us here. So none
of this try_ nonsense, and no bitching about it
return 0;
}
- up(&mtd_table_mutex);
+ mutex_unlock(&mtd_table_mutex);
return 1;
}
{
int ret;
- down(&mtd_table_mutex);
+ mutex_lock(&mtd_table_mutex);
if (mtd_table[mtd->index] != mtd) {
ret = -ENODEV;
ret = 0;
}
- up(&mtd_table_mutex);
+ mutex_unlock(&mtd_table_mutex);
return ret;
}
{
int i;
- down(&mtd_table_mutex);
+ mutex_lock(&mtd_table_mutex);
list_add(&new->list, &mtd_notifiers);
if (mtd_table[i])
new->add(mtd_table[i]);
- up(&mtd_table_mutex);
+ mutex_unlock(&mtd_table_mutex);
}
/**
{
int i;
- down(&mtd_table_mutex);
+ mutex_lock(&mtd_table_mutex);
module_put(THIS_MODULE);
old->remove(mtd_table[i]);
list_del(&old->list);
- up(&mtd_table_mutex);
+ mutex_unlock(&mtd_table_mutex);
return 0;
}
struct mtd_info *ret = NULL;
int i;
- down(&mtd_table_mutex);
+ mutex_lock(&mtd_table_mutex);
if (num == -1) {
for (i=0; i< MAX_MTD_DEVICES; i++)
if (ret)
ret->usecount++;
- up(&mtd_table_mutex);
+ mutex_unlock(&mtd_table_mutex);
return ret;
}
{
int c;
- down(&mtd_table_mutex);
+ mutex_lock(&mtd_table_mutex);
c = --mtd->usecount;
- up(&mtd_table_mutex);
+ mutex_unlock(&mtd_table_mutex);
BUG_ON(c < 0);
module_put(mtd->owner);
return ret;
}
-
-/* default_mtd_readv - default mtd readv method for MTD devices that dont
- * implement their own
- */
-
-int default_mtd_readv(struct mtd_info *mtd, struct kvec *vecs,
- unsigned long count, loff_t from, size_t *retlen)
-{
- unsigned long i;
- size_t totlen = 0, thislen;
- int ret = 0;
-
- if(!mtd->read) {
- ret = -EIO;
- } else {
- for (i=0; i<count; i++) {
- if (!vecs[i].iov_len)
- continue;
- ret = mtd->read(mtd, from, vecs[i].iov_len, &thislen, vecs[i].iov_base);
- totlen += thislen;
- if (ret || thislen != vecs[i].iov_len)
- break;
- from += vecs[i].iov_len;
- }
- }
- if (retlen)
- *retlen = totlen;
- return ret;
-}
-
-
EXPORT_SYMBOL(add_mtd_device);
EXPORT_SYMBOL(del_mtd_device);
EXPORT_SYMBOL(get_mtd_device);
EXPORT_SYMBOL(register_mtd_user);
EXPORT_SYMBOL(unregister_mtd_user);
EXPORT_SYMBOL(default_mtd_writev);
-EXPORT_SYMBOL(default_mtd_readv);
+
+#ifdef CONFIG_PROC_FS
/*====================================================================*/
/* Support for /proc/mtd */
-#ifdef CONFIG_PROC_FS
static struct proc_dir_entry *proc_mtd;
static inline int mtd_proc_info (char *buf, int i)
int len, l, i;
off_t begin = 0;
- down(&mtd_table_mutex);
+ mutex_lock(&mtd_table_mutex);
len = sprintf(page, "dev: size erasesize name\n");
for (i=0; i< MAX_MTD_DEVICES; i++) {
*eof = 1;
done:
- up(&mtd_table_mutex);
+ mutex_unlock(&mtd_table_mutex);
if (off >= len+begin)
return 0;
*start = page + (off-begin);
return ((count < begin+len-off) ? count : begin+len-off);
}
-#endif /* CONFIG_PROC_FS */
-
/*====================================================================*/
/* Init code */
static int __init init_mtd(void)
{
-#ifdef CONFIG_PROC_FS
if ((proc_mtd = create_proc_entry( "mtd", 0, NULL )))
proc_mtd->read_proc = mtd_read_proc;
-#endif
return 0;
}
static void __exit cleanup_mtd(void)
{
-#ifdef CONFIG_PROC_FS
if (proc_mtd)
remove_proc_entry( "mtd", NULL);
-#endif
}
module_init(init_mtd);
module_exit(cleanup_mtd);
+#endif /* CONFIG_PROC_FS */
+
MODULE_LICENSE("GPL");
MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");