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authorPaul Jimenez <pj@place.org>2008-02-08 02:09:59 +0000
committerAlasdair G Kergon <agk@redhat.com>2008-02-08 02:09:59 +0000
commitafb24528f9012e5c6361ca9a9128c7c089c1cc7c (patch)
tree1aa47aca62308becafc05464f5020b4ffbf3ce67 /drivers/md/dm-table.c
parent76c072b48e39e9291fbf02d6c912cf27d65e093d (diff)
dm: table use list_for_each
This patch is some minor janitorish cleanup, using some macros from linux/list.h (already #included via dm.h) to improve readability. Signed-off-by: Paul Jimenez <pj@place.org> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm-table.c')
-rw-r--r--drivers/md/dm-table.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 47818d8249c..d2eb3c59368 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -287,9 +287,8 @@ static void free_devices(struct list_head *devices)
{
struct list_head *tmp, *next;
- for (tmp = devices->next; tmp != devices; tmp = next) {
+ list_for_each_safe(tmp, next, devices) {
struct dm_dev *dd = list_entry(tmp, struct dm_dev, list);
- next = tmp->next;
kfree(dd);
}
}
@@ -993,12 +992,11 @@ int dm_table_resume_targets(struct dm_table *t)
int dm_table_any_congested(struct dm_table *t, int bdi_bits)
{
- struct list_head *d, *devices;
+ struct dm_dev *dd;
+ struct list_head *devices = dm_table_get_devices(t);
int r = 0;
- devices = dm_table_get_devices(t);
- for (d = devices->next; d != devices; d = d->next) {
- struct dm_dev *dd = list_entry(d, struct dm_dev, list);
+ list_for_each_entry(dd, devices, list) {
struct request_queue *q = bdev_get_queue(dd->bdev);
r |= bdi_congested(&q->backing_dev_info, bdi_bits);
}
@@ -1008,10 +1006,10 @@ int dm_table_any_congested(struct dm_table *t, int bdi_bits)
void dm_table_unplug_all(struct dm_table *t)
{
- struct list_head *d, *devices = dm_table_get_devices(t);
+ struct dm_dev *dd;
+ struct list_head *devices = dm_table_get_devices(t);
- for (d = devices->next; d != devices; d = d->next) {
- struct dm_dev *dd = list_entry(d, struct dm_dev, list);
+ list_for_each_entry(dd, devices, list) {
struct request_queue *q = bdev_get_queue(dd->bdev);
blk_unplug(q);