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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/multipath.c
parentccacc7d2cf03114a24ab903f710118e9e5d43273 (diff)
downloadop-kernel-dev-159ec1fc060ab22b157a62364045f5e98749c4d3.zip
op-kernel-dev-159ec1fc060ab22b157a62364045f5e98749c4d3.tar.gz
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/multipath.c')
-rw-r--r--drivers/md/multipath.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index d4ac47d..f6d08f2 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -408,7 +408,6 @@ static int multipath_run (mddev_t *mddev)
int disk_idx;
struct multipath_info *disk;
mdk_rdev_t *rdev;
- struct list_head *tmp;
if (mddev->level != LEVEL_MULTIPATH) {
printk("multipath: %s: raid level not set to multipath IO (%d)\n",
@@ -441,7 +440,7 @@ static int multipath_run (mddev_t *mddev)
}
conf->working_disks = 0;
- rdev_for_each(rdev, tmp, mddev) {
+ list_for_each_entry(rdev, &mddev->disks, same_set) {
disk_idx = rdev->raid_disk;
if (disk_idx < 0 ||
disk_idx >= mddev->raid_disks)
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