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[MTD] mtd_blkdevs: Convert to use the kthread API 

thread_run is used intead of kernel_thread, daemonize, and mucking
around blocking signals directly.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
Eric W. Biederman 2007-04-19 01:58:33 -06:00 committed by David Woodhouse
parent e6be133b68
commit 99f9b2431e
1 changed files with 5 additions and 14 deletions
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19
drivers/mtd/mtd_blkdevs.c
View File

@ -20,6 +20,7 @@
#include <linux/hdreg.h>
#include <linux/init.h>
#include <linux/mutex.h>
#include <linux/kthread.h>
#include <asm/uaccess.h>
static LIST_HEAD(blktrans_majors);
@ -83,17 +84,6 @@ static int mtd_blktrans_thread(void *arg)
/* we might get involved when memory gets low, so use PF_MEMALLOC */
current->flags |= PF_MEMALLOC | PF_NOFREEZE;
daemonize("%sd", tr->name);
/* daemonize() doesn't do this for us since some kernel threads
actually want to deal with signals. We can't just call
exit_sighand() since that'll cause an oops when we finally
do exit. */
spin_lock_irq(&current->sighand->siglock);
sigfillset(&current->blocked);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
spin_lock_irq(rq->queue_lock);
while (!tr->blkcore_priv->exiting) {
@ -365,6 +355,7 @@ static struct mtd_notifier blktrans_notifier = {
int register_mtd_blktrans(struct mtd_blktrans_ops *tr)
{
struct task_struct *task;
int ret, i;
/* Register the notifier if/when the first device type is
@ -403,13 +394,13 @@ int register_mtd_blktrans(struct mtd_blktrans_ops *tr)
blk_queue_hardsect_size(tr->blkcore_priv->rq, tr->blksize);
tr->blkshift = ffs(tr->blksize) - 1;
ret = kernel_thread(mtd_blktrans_thread, tr, CLONE_KERNEL);
if (ret < 0) {
task = kthread_run(mtd_blktrans_thread, tr, "%sd", tr->name);
if (IS_ERR(task)) {
blk_cleanup_queue(tr->blkcore_priv->rq);
unregister_blkdev(tr->major, tr->name);
kfree(tr->blkcore_priv);
mutex_unlock(&mtd_table_mutex);
return ret;
return PTR_ERR(task);
}
INIT_LIST_HEAD(&tr->devs);