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| author | Cheng Renquan <crquan@gmail.com> | 2009-01-09 08:31:08 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2009-01-09 08:31:08 +1100 |
| commit | 159ec1fc060ab22b157a62364045f5e98749c4d3 (patch) | |
| tree | 1de0edfd782245b271d2898e36ae76c00e1e1b6d /drivers/md/linear.c | |
| parent | ccacc7d2cf03114a24ab903f710118e9e5d43273 (diff) | |
| download | lwn-159ec1fc060ab22b157a62364045f5e98749c4d3.tar.gz lwn-159ec1fc060ab22b157a62364045f5e98749c4d3.zip | |
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.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 3b90c5c924ec..1e3aea9eecf1 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; |