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authorMatthias Kaehlcke <matthias.kaehlcke@gmail.com>2007-07-09 12:03:07 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2007-07-12 16:34:40 -0700
commita69228deefea57ca27c17a196e5727b091c6d323 (patch)
treea8c9545a2ca285021d7070bd258505cbc2a93ba3 /drivers/block/ub.c
parentacb11c8b8020f1f1b2545152020675ef32d09a58 (diff)
USB: drivers/block/ub.c: use list_for_each_entry()
Low performance USB storage driver: Use list_for_each_entry() instead of list_for_each() Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Cc: Pete Zaitcev <zaitcev@redhat.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/block/ub.c')
-rw-r--r--drivers/block/ub.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index 746a118a9b5..18c8b6c0db2 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -1547,10 +1547,8 @@ static void ub_reset_enter(struct ub_dev *sc, int try)
#endif
#if 0 /* We let them stop themselves. */
- struct list_head *p;
struct ub_lun *lun;
- list_for_each(p, &sc->luns) {
- lun = list_entry(p, struct ub_lun, link);
+ list_for_each_entry(lun, &sc->luns, link) {
blk_stop_queue(lun->disk->queue);
}
#endif
@@ -1562,7 +1560,6 @@ static void ub_reset_task(struct work_struct *work)
{
struct ub_dev *sc = container_of(work, struct ub_dev, reset_work);
unsigned long flags;
- struct list_head *p;
struct ub_lun *lun;
int lkr, rc;
@@ -1608,8 +1605,7 @@ static void ub_reset_task(struct work_struct *work)
spin_lock_irqsave(sc->lock, flags);
sc->reset = 0;
tasklet_schedule(&sc->tasklet);
- list_for_each(p, &sc->luns) {
- lun = list_entry(p, struct ub_lun, link);
+ list_for_each_entry(lun, &sc->luns, link) {
blk_start_queue(lun->disk->queue);
}
wake_up(&sc->reset_wait);
@@ -2348,7 +2344,6 @@ err_alloc:
static void ub_disconnect(struct usb_interface *intf)
{
struct ub_dev *sc = usb_get_intfdata(intf);
- struct list_head *p;
struct ub_lun *lun;
unsigned long flags;
@@ -2403,8 +2398,7 @@ static void ub_disconnect(struct usb_interface *intf)
/*
* Unregister the upper layer.
*/
- list_for_each (p, &sc->luns) {
- lun = list_entry(p, struct ub_lun, link);
+ list_for_each_entry(lun, &sc->luns, link) {
del_gendisk(lun->disk);
/*
* I wish I could do: