md: tidy up rdev_for_each usage.
md.h has an 'rdev_for_each()' macro for iterating the rdevs in an
mddev. However it uses the 'safe' version of list_for_each_entry,
and so requires the extra variable, but doesn't include 'safe' in the
name, which is useful documentation.
Consequently some places use this safe version without needing it, and
many use an explicity list_for_each entry.
So:
- rename rdev_for_each to rdev_for_each_safe
- create a new rdev_for_each which uses the plain
list_for_each_entry,
- use the 'safe' version only where needed, and convert all other
list_for_each_entry calls to use rdev_for_each.
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 7294bd11..7ef5cbf 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -91,7 +91,7 @@
if (!conf)
return -ENOMEM;
- list_for_each_entry(rdev1, &mddev->disks, same_set) {
+ rdev_for_each(rdev1, mddev) {
pr_debug("md/raid0:%s: looking at %s\n",
mdname(mddev),
bdevname(rdev1->bdev, b));
@@ -102,7 +102,7 @@
sector_div(sectors, mddev->chunk_sectors);
rdev1->sectors = sectors * mddev->chunk_sectors;
- list_for_each_entry(rdev2, &mddev->disks, same_set) {
+ rdev_for_each(rdev2, mddev) {
pr_debug("md/raid0:%s: comparing %s(%llu)"
" with %s(%llu)\n",
mdname(mddev),
@@ -157,7 +157,7 @@
smallest = NULL;
dev = conf->devlist;
err = -EINVAL;
- list_for_each_entry(rdev1, &mddev->disks, same_set) {
+ rdev_for_each(rdev1, mddev) {
int j = rdev1->raid_disk;
if (mddev->level == 10) {
@@ -329,7 +329,7 @@
WARN_ONCE(sectors || raid_disks,
"%s does not support generic reshape\n", __func__);
- list_for_each_entry(rdev, &mddev->disks, same_set)
+ rdev_for_each(rdev, mddev)
array_sectors += rdev->sectors;
return array_sectors;
@@ -543,7 +543,7 @@
return ERR_PTR(-EINVAL);
}
- list_for_each_entry(rdev, &mddev->disks, same_set) {
+ rdev_for_each(rdev, mddev) {
/* check slot number for a disk */
if (rdev->raid_disk == mddev->raid_disks-1) {
printk(KERN_ERR "md/raid0:%s: raid5 must have missing parity disk!\n",