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authorCheng Renquan <crquan@gmail.com>2009-01-09 08:31:08 +1100
committerNeilBrown <neilb@suse.de>2009-01-09 08:31:08 +1100
commit159ec1fc060ab22b157a62364045f5e98749c4d3 (patch)
tree1de0edfd782245b271d2898e36ae76c00e1e1b6d /drivers/md/linear.c
parentccacc7d2cf03114a24ab903f710118e9e5d43273 (diff)
md: use list_for_each_entry macro directly
The rdev_for_each macro defined in <linux/raid/md_k.h> is identical to list_for_each_entry_safe, from <linux/list.h>, it should be defined to use list_for_each_entry_safe, instead of reinventing the wheel. But some calls to each_entry_safe don't really need a safe version, just a direct list_for_each_entry is enough, this could save a temp variable (tmp) in every function that used rdev_for_each. In this patch, most rdev_for_each loops are replaced by list_for_each_entry, totally save many tmp vars; and only in the other situations that will call list_del to delete an entry, the safe version is used. Signed-off-by: Cheng Renquan <crquan@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/linear.c')
-rw-r--r--drivers/md/linear.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 3b90c5c924e..1e3aea9eecf 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -105,7 +105,6 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
int i, nb_zone, cnt;
sector_t min_sectors;
sector_t curr_sector;
- struct list_head *tmp;
conf = kzalloc (sizeof (*conf) + raid_disks*sizeof(dev_info_t),
GFP_KERNEL);
@@ -115,7 +114,7 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
cnt = 0;
conf->array_sectors = 0;
- rdev_for_each(rdev, tmp, mddev) {
+ list_for_each_entry(rdev, &mddev->disks, same_set) {
int j = rdev->raid_disk;
dev_info_t *disk = conf->disks + j;