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Commit 159ec1fc authored by Cheng Renquan's avatar Cheng Renquan Committed by NeilBrown
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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: default avatarCheng Renquan <crquan@gmail.com>
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent ccacc7d2
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Showing with 60 additions and 94 deletions
drivers/md/bitmap.c
View file @ 159ec1fc
......@@ -215,7 +215,6 @@ static struct page *read_sb_page(mddev_t *mddev, long offset,
/* choose a good rdev and read the page from there */
mdk_rdev_t *rdev;
struct list_head *tmp;
sector_t target;
if (!page)
......@@ -223,7 +222,7 @@ static struct page *read_sb_page(mddev_t *mddev, long offset,
if (!page)
return ERR_PTR(-ENOMEM);
rdev_for_each(rdev, tmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set) {
if (! test_bit(In_sync, &rdev->flags)
|| test_bit(Faulty, &rdev->flags))
continue;
......
drivers/md/faulty.c
View file @ 159ec1fc
......@@ -283,7 +283,6 @@ static int reconfig(mddev_t *mddev, int layout, int chunk_size)
static int run(mddev_t *mddev)
{
mdk_rdev_t *rdev;
struct list_head *tmp;
int i;
conf_t *conf = kmalloc(sizeof(*conf), GFP_KERNEL);
......@@ -296,7 +295,7 @@ static int run(mddev_t *mddev)
}
conf->nfaults = 0;
rdev_for_each(rdev, tmp, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
conf->rdev = rdev;
mddev->array_sectors = mddev->size * 2;
......
drivers/md/linear.c
View file @ 159ec1fc
......@@ -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;
......
drivers/md/md.c
View file @ 159ec1fc
......@@ -307,25 +307,23 @@ static inline void mddev_unlock(mddev_t * mddev)
static mdk_rdev_t * find_rdev_nr(mddev_t *mddev, int nr)
{
mdk_rdev_t * rdev;
struct list_head *tmp;
mdk_rdev_t *rdev;
rdev_for_each(rdev, tmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set)
if (rdev->desc_nr == nr)
return rdev;
}
return NULL;
}
static mdk_rdev_t * find_rdev(mddev_t * mddev, dev_t dev)
{
struct list_head *tmp;
mdk_rdev_t *rdev;
rdev_for_each(rdev, tmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set)
if (rdev->bdev->bd_dev == dev)
return rdev;
}
return NULL;
}
......@@ -861,7 +859,6 @@ static int super_90_validate(mddev_t *mddev, mdk_rdev_t *rdev)
static void super_90_sync(mddev_t *mddev, mdk_rdev_t *rdev)
{
mdp_super_t *sb;
struct list_head *tmp;
mdk_rdev_t *rdev2;
int next_spare = mddev->raid_disks;
......@@ -933,7 +930,7 @@ static void super_90_sync(mddev_t *mddev, mdk_rdev_t *rdev)
sb->state |= (1<<MD_SB_BITMAP_PRESENT);
sb->disks[0].state = (1<<MD_DISK_REMOVED);
rdev_for_each(rdev2, tmp, mddev) {
list_for_each_entry(rdev2, &mddev->disks, same_set) {
mdp_disk_t *d;
int desc_nr;
if (rdev2->raid_disk >= 0 && test_bit(In_sync, &rdev2->flags)
......@@ -1259,7 +1256,6 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev)
static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev)
{
struct mdp_superblock_1 *sb;
struct list_head *tmp;
mdk_rdev_t *rdev2;
int max_dev, i;
/* make rdev->sb match mddev and rdev data. */
......@@ -1307,7 +1303,7 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev)
}
max_dev = 0;
rdev_for_each(rdev2, tmp, mddev)
list_for_each_entry(rdev2, &mddev->disks, same_set)
if (rdev2->desc_nr+1 > max_dev)
max_dev = rdev2->desc_nr+1;
......@@ -1316,7 +1312,7 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev)
for (i=0; i<max_dev;i++)
sb->dev_roles[i] = cpu_to_le16(0xfffe);
rdev_for_each(rdev2, tmp, mddev) {
list_for_each_entry(rdev2, &mddev->disks, same_set) {
i = rdev2->desc_nr;
if (test_bit(Faulty, &rdev2->flags))
sb->dev_roles[i] = cpu_to_le16(0xfffe);
......@@ -1571,8 +1567,7 @@ static void kick_rdev_from_array(mdk_rdev_t * rdev)
static void export_array(mddev_t *mddev)
{
struct list_head *tmp;
mdk_rdev_t *rdev;
mdk_rdev_t *rdev, *tmp;
rdev_for_each(rdev, tmp, mddev) {
if (!rdev->mddev) {
......@@ -1643,7 +1638,7 @@ static void print_rdev(mdk_rdev_t *rdev)
static void md_print_devices(void)
{
struct list_head *tmp, *tmp2;
struct list_head *tmp;
mdk_rdev_t *rdev;
mddev_t *mddev;
char b[BDEVNAME_SIZE];
......@@ -1658,11 +1653,11 @@ static void md_print_devices(void)
bitmap_print_sb(mddev->bitmap);
else
printk("%s: ", mdname(mddev));
rdev_for_each(rdev, tmp2, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
printk("<%s>", bdevname(rdev->bdev,b));
printk("\n");
rdev_for_each(rdev, tmp2, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
print_rdev(rdev);
}
printk("md: **********************************\n");
......@@ -1679,9 +1674,8 @@ static void sync_sbs(mddev_t * mddev, int nospares)
* with the rest of the array)
*/
mdk_rdev_t *rdev;
struct list_head *tmp;
rdev_for_each(rdev, tmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set) {
if (rdev->sb_events == mddev->events ||
(nospares &&
rdev->raid_disk < 0 &&
......@@ -1699,7 +1693,6 @@ static void sync_sbs(mddev_t * mddev, int nospares)
static void md_update_sb(mddev_t * mddev, int force_change)
{
struct list_head *tmp;
mdk_rdev_t *rdev;
int sync_req;
int nospares = 0;
......@@ -1790,7 +1783,7 @@ static void md_update_sb(mddev_t * mddev, int force_change)
mdname(mddev),mddev->in_sync);
bitmap_update_sb(mddev->bitmap);
rdev_for_each(rdev, tmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set) {
char b[BDEVNAME_SIZE];
dprintk(KERN_INFO "md: ");
if (rdev->sb_loaded != 1)
......@@ -1999,7 +1992,6 @@ slot_store(mdk_rdev_t *rdev, const char *buf, size_t len)
md_wakeup_thread(rdev->mddev->thread);
} else if (rdev->mddev->pers) {
mdk_rdev_t *rdev2;
struct list_head *tmp;
/* Activating a spare .. or possibly reactivating
* if we every get bitmaps working here.
*/
......@@ -2010,7 +2002,7 @@ slot_store(mdk_rdev_t *rdev, const char *buf, size_t len)
if (rdev->mddev->pers->hot_add_disk == NULL)
return -EINVAL;
rdev_for_each(rdev2, tmp, rdev->mddev)
list_for_each_entry(rdev2, &rdev->mddev->disks, same_set)
if (rdev2->raid_disk == slot)
return -EEXIST;
......@@ -2125,14 +2117,14 @@ rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len)
*/
mddev_t *mddev;
int overlap = 0;
struct list_head *tmp, *tmp2;
struct list_head *tmp;
mddev_unlock(my_mddev);
for_each_mddev(mddev, tmp) {
mdk_rdev_t *rdev2;
mddev_lock(mddev);
rdev_for_each(rdev2, tmp2, mddev)
list_for_each_entry(rdev2, &mddev->disks, same_set)
if (test_bit(AllReserved, &rdev2->flags) ||
(rdev->bdev == rdev2->bdev &&
rdev != rdev2 &&
......@@ -2328,8 +2320,7 @@ static mdk_rdev_t *md_import_device(dev_t newdev, int super_format, int super_mi
static void analyze_sbs(mddev_t * mddev)
{
int i;
struct list_head *tmp;
mdk_rdev_t *rdev, *freshest;
mdk_rdev_t *rdev, *freshest, *tmp;
char b[BDEVNAME_SIZE];
freshest = NULL;
......@@ -3501,7 +3492,6 @@ static int do_md_run(mddev_t * mddev)
{
int err;
int chunk_size;
struct list_head *tmp;
mdk_rdev_t *rdev;
struct gendisk *disk;
struct mdk_personality *pers;
......@@ -3540,7 +3530,7 @@ static int do_md_run(mddev_t * mddev)
}
/* devices must have minimum size of one chunk */
rdev_for_each(rdev, tmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set) {
if (test_bit(Faulty, &rdev->flags))
continue;
if (rdev->size < chunk_size / 1024) {
......@@ -3565,7 +3555,7 @@ static int do_md_run(mddev_t * mddev)
* the only valid external interface is through the md
* device.
*/
rdev_for_each(rdev, tmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set) {
if (test_bit(Faulty, &rdev->flags))
continue;
sync_blockdev(rdev->bdev);
......@@ -3630,10 +3620,10 @@ static int do_md_run(mddev_t * mddev)
*/
char b[BDEVNAME_SIZE], b2[BDEVNAME_SIZE];
mdk_rdev_t *rdev2;
struct list_head *tmp2;
int warned = 0;
rdev_for_each(rdev, tmp, mddev) {
rdev_for_each(rdev2, tmp2, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set)
list_for_each_entry(rdev2, &mddev->disks, same_set) {
if (rdev < rdev2 &&
rdev->bdev->bd_contains ==
rdev2->bdev->bd_contains) {
......@@ -3647,7 +3637,7 @@ static int do_md_run(mddev_t * mddev)
warned = 1;
}
}
}
if (warned)
printk(KERN_WARNING
"True protection against single-disk"
......@@ -3695,7 +3685,7 @@ static int do_md_run(mddev_t * mddev)
mddev->safemode_delay = (200 * HZ)/1000 +1; /* 200 msec delay */
mddev->in_sync = 1;
rdev_for_each(rdev, tmp, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
if (rdev->raid_disk >= 0) {
char nm[20];
sprintf(nm, "rd%d", rdev->raid_disk);
......@@ -3726,9 +3716,8 @@ static int do_md_run(mddev_t * mddev)
* it will remove the drives and not do the right thing
*/
if (mddev->degraded && !mddev->sync_thread) {
struct list_head *rtmp;
int spares = 0;
rdev_for_each(rdev, rtmp, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
if (rdev->raid_disk >= 0 &&
!test_bit(In_sync, &rdev->flags) &&
!test_bit(Faulty, &rdev->flags))
......@@ -3888,7 +3877,6 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
*/
if (mode == 0) {
mdk_rdev_t *rdev;
struct list_head *tmp;
printk(KERN_INFO "md: %s stopped.\n", mdname(mddev));
......@@ -3900,7 +3888,7 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
}
mddev->bitmap_offset = 0;
rdev_for_each(rdev, tmp, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
if (rdev->raid_disk >= 0) {
char nm[20];
sprintf(nm, "rd%d", rdev->raid_disk);
......@@ -3961,7 +3949,6 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
static void autorun_array(mddev_t *mddev)
{
mdk_rdev_t *rdev;
struct list_head *tmp;
int err;
if (list_empty(&mddev->disks))
......@@ -3969,7 +3956,7 @@ static void autorun_array(mddev_t *mddev)
printk(KERN_INFO "md: running: ");
rdev_for_each(rdev, tmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set) {
char b[BDEVNAME_SIZE];
printk("<%s>", bdevname(rdev->bdev,b));
}
......@@ -3996,8 +3983,7 @@ static void autorun_array(mddev_t *mddev)
*/
static void autorun_devices(int part)
{
struct list_head *tmp;
mdk_rdev_t *rdev0, *rdev;
mdk_rdev_t *rdev0, *rdev, *tmp;
mddev_t *mddev;
char b[BDEVNAME_SIZE];
......@@ -4012,7 +3998,7 @@ static void autorun_devices(int part)
printk(KERN_INFO "md: considering %s ...\n",
bdevname(rdev0->bdev,b));
INIT_LIST_HEAD(&candidates);
rdev_for_each_list(rdev, tmp, pending_raid_disks)
rdev_for_each_list(rdev, tmp, &pending_raid_disks)
if (super_90_load(rdev, rdev0, 0) >= 0) {
printk(KERN_INFO "md: adding %s ...\n",
bdevname(rdev->bdev,b));
......@@ -4058,7 +4044,7 @@ static void autorun_devices(int part)
} else {
printk(KERN_INFO "md: created %s\n", mdname(mddev));
mddev->persistent = 1;
rdev_for_each_list(rdev, tmp, candidates) {
rdev_for_each_list(rdev, tmp, &candidates) {
list_del_init(&rdev->same_set);
if (bind_rdev_to_array(rdev, mddev))
export_rdev(rdev);
......@@ -4069,7 +4055,7 @@ static void autorun_devices(int part)
/* on success, candidates will be empty, on error
* it won't...
*/
rdev_for_each_list(rdev, tmp, candidates) {
rdev_for_each_list(rdev, tmp, &candidates) {
list_del_init(&rdev->same_set);
export_rdev(rdev);
}
......@@ -4098,10 +4084,9 @@ static int get_array_info(mddev_t * mddev, void __user * arg)
mdu_array_info_t info;
int nr,working,active,failed,spare;
mdk_rdev_t *rdev;
struct list_head *tmp;
nr=working=active=failed=spare=0;
rdev_for_each(rdev, tmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set) {
nr++;
if (test_bit(Faulty, &rdev->flags))
failed++;
......@@ -4619,9 +4604,8 @@ static int set_array_info(mddev_t * mddev, mdu_array_info_t *info)
static int update_size(mddev_t *mddev, sector_t num_sectors)
{
mdk_rdev_t * rdev;
mdk_rdev_t *rdev;
int rv;
struct list_head *tmp;
int fit = (num_sectors == 0);
if (mddev->pers->resize == NULL)
......@@ -4643,7 +4627,7 @@ static int update_size(mddev_t *mddev, sector_t num_sectors)
* grow, and re-add.
*/
return -EBUSY;
rdev_for_each(rdev, tmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set) {
sector_t avail;
avail = rdev->size * 2;
......@@ -5192,11 +5176,10 @@ static void status_unused(struct seq_file *seq)
{
int i = 0;
mdk_rdev_t *rdev;
struct list_head *tmp;
seq_printf(seq, "unused devices: ");
rdev_for_each_list(rdev, tmp, pending_raid_disks) {
list_for_each_entry(rdev, &pending_raid_disks, same_set) {
char b[BDEVNAME_SIZE];
i++;
seq_printf(seq, "%s ",
......@@ -5355,7 +5338,6 @@ static int md_seq_show(struct seq_file *seq, void *v)
{
mddev_t *mddev = v;
sector_t size;
struct list_head *tmp2;
mdk_rdev_t *rdev;
struct mdstat_info *mi = seq->private;
struct bitmap *bitmap;
......@@ -5392,7 +5374,7 @@ static int md_seq_show(struct seq_file *seq, void *v)
}
size = 0;
rdev_for_each(rdev, tmp2, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set) {
char b[BDEVNAME_SIZE];
seq_printf(seq, " %s[%d]",
bdevname(rdev->bdev,b), rdev->desc_nr);
......@@ -5699,7 +5681,6 @@ void md_do_sync(mddev_t *mddev)
struct list_head *tmp;
sector_t last_check;
int skipped = 0;
struct list_head *rtmp;
mdk_rdev_t *rdev;
char *desc;
......@@ -5804,7 +5785,7 @@ void md_do_sync(mddev_t *mddev)
/* recovery follows the physical size of devices */
max_sectors = mddev->size << 1;
j = MaxSector;
rdev_for_each(rdev, rtmp, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
if (rdev->raid_disk >= 0 &&
!test_bit(Faulty, &rdev->flags) &&
!test_bit(In_sync, &rdev->flags) &&
......@@ -5954,7 +5935,7 @@ void md_do_sync(mddev_t *mddev)
} else {
if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery))
mddev->curr_resync = MaxSector;
rdev_for_each(rdev, rtmp, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
if (rdev->raid_disk >= 0 &&
!test_bit(Faulty, &rdev->flags) &&
!test_bit(In_sync, &rdev->flags) &&
......@@ -5990,10 +5971,9 @@ EXPORT_SYMBOL_GPL(md_do_sync);
static int remove_and_add_spares(mddev_t *mddev)
{
mdk_rdev_t *rdev;
struct list_head *rtmp;
int spares = 0;
rdev_for_each(rdev, rtmp, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
if (rdev->raid_disk >= 0 &&
!test_bit(Blocked, &rdev->flags) &&
(test_bit(Faulty, &rdev->flags) ||
......@@ -6009,7 +5989,7 @@ static int remove_and_add_spares(mddev_t *mddev)
}
if (mddev->degraded && ! mddev->ro) {
rdev_for_each(rdev, rtmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set) {
if (rdev->raid_disk >= 0 &&
!test_bit(In_sync, &rdev->flags) &&
!test_bit(Blocked, &rdev->flags))
......@@ -6061,7 +6041,6 @@ static int remove_and_add_spares(mddev_t *mddev)
void md_check_recovery(mddev_t *mddev)
{
mdk_rdev_t *rdev;
struct list_head *rtmp;
if (mddev->bitmap)
......@@ -6125,7 +6104,7 @@ void md_check_recovery(mddev_t *mddev)
if (mddev->flags)
md_update_sb(mddev, 0);
rdev_for_each(rdev, rtmp, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
if (test_and_clear_bit(StateChanged, &rdev->flags))
sysfs_notify_dirent(rdev->sysfs_state);
......@@ -6154,7 +6133,7 @@ void md_check_recovery(mddev_t *mddev)
* information must be scrapped
*/
if (!mddev->degraded)
rdev_for_each(rdev, rtmp, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
rdev->saved_raid_disk = -1;
mddev->recovery = 0;
......
drivers/md/multipath.c
View file @ 159ec1fc
......@@ -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)
......
drivers/md/raid0.c
View file @ 159ec1fc
......@@ -57,7 +57,6 @@ static int create_strip_zones (mddev_t *mddev)
sector_t min_spacing;
raid0_conf_t *conf = mddev_to_conf(mddev);
mdk_rdev_t *smallest, *rdev1, *rdev2, *rdev;
struct list_head *tmp1, *tmp2;
struct strip_zone *zone;
int cnt;
char b[BDEVNAME_SIZE];
......@@ -67,11 +66,11 @@ static int create_strip_zones (mddev_t *mddev)
*/
conf->nr_strip_zones = 0;
rdev_for_each(rdev1, tmp1, mddev) {
list_for_each_entry(rdev1, &mddev->disks, same_set) {
printk(KERN_INFO "raid0: looking at %s\n",
bdevname(rdev1->bdev,b));
c = 0;
rdev_for_each(rdev2, tmp2, mddev) {
list_for_each_entry(rdev2, &mddev->disks, same_set) {
printk(KERN_INFO "raid0: comparing %s(%llu)",
bdevname(rdev1->bdev,b),
(unsigned long long)rdev1->size);
......@@ -120,7 +119,7 @@ static int create_strip_zones (mddev_t *mddev)
cnt = 0;
smallest = NULL;
zone->dev = conf->devlist;
rdev_for_each(rdev1, tmp1, mddev) {
list_for_each_entry(rdev1, &mddev->disks, same_set) {
int j = rdev1->raid_disk;
if (j < 0 || j >= mddev->raid_disks) {
......@@ -268,7 +267,6 @@ static int raid0_run (mddev_t *mddev)
s64 sectors;
raid0_conf_t *conf;
mdk_rdev_t *rdev;
struct list_head *tmp;
if (mddev->chunk_size == 0) {
printk(KERN_ERR "md/raid0: non-zero chunk size required.\n");
......@@ -294,7 +292,7 @@ static int raid0_run (mddev_t *mddev)
/* calculate array device size */
mddev->array_sectors = 0;
rdev_for_each(rdev, tmp, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
mddev->array_sectors += rdev->size * 2;
printk(KERN_INFO "raid0 : md_size is %llu sectors.\n",
......
drivers/md/raid1.c
View file @ 159ec1fc
......@@ -1919,7 +1919,6 @@ static int run(mddev_t *mddev)
int i, j, disk_idx;
mirror_info_t *disk;
mdk_rdev_t *rdev;
struct list_head *tmp;
if (mddev->level != 1) {
printk("raid1: %s: raid level not set to mirroring (%d)\n",
......@@ -1964,7 +1963,7 @@ static int run(mddev_t *mddev)
spin_lock_init(&conf->device_lock);
mddev->queue->queue_lock = &conf->device_lock;
rdev_for_each(rdev, tmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set) {
disk_idx = rdev->raid_disk;
if (disk_idx >= mddev->raid_disks
|| disk_idx < 0)
......
drivers/md/raid10.c
View file @ 159ec1fc
......@@ -2025,7 +2025,6 @@ static int run(mddev_t *mddev)
int i, disk_idx;
mirror_info_t *disk;
mdk_rdev_t *rdev;
struct list_head *tmp;
int nc, fc, fo;
sector_t stride, size;
......@@ -2108,7 +2107,7 @@ static int run(mddev_t *mddev)
spin_lock_init(&conf->device_lock);
mddev->queue->queue_lock = &conf->device_lock;
rdev_for_each(rdev, tmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set) {
disk_idx = rdev->raid_disk;
if (disk_idx >= mddev->raid_disks
|| disk_idx < 0)
......
drivers/md/raid5.c
View file @ 159ec1fc
......@@ -3998,7 +3998,6 @@ static int run(mddev_t *mddev)
int raid_disk, memory;
mdk_rdev_t *rdev;
struct disk_info *disk;
struct list_head *tmp;
int working_disks = 0;
if (mddev->level != 5 && mddev->level != 4 && mddev->level != 6) {
......@@ -4108,7 +4107,7 @@ static int run(mddev_t *mddev)
pr_debug("raid5: run(%s) called.\n", mdname(mddev));
rdev_for_each(rdev, tmp, mddev) {
list_for_each_entry(rdev, &mddev->disks, same_set) {
raid_disk = rdev->raid_disk;
if (raid_disk >= conf->raid_disks
|| raid_disk < 0)
......@@ -4533,7 +4532,6 @@ static int raid5_start_reshape(mddev_t *mddev)
{
raid5_conf_t *conf = mddev_to_conf(mddev);
mdk_rdev_t *rdev;
struct list_head *rtmp;
int spares = 0;
int added_devices = 0;
unsigned long flags;
......@@ -4541,7 +4539,7 @@ static int raid5_start_reshape(mddev_t *mddev)
if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
return -EBUSY;
rdev_for_each(rdev, rtmp, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
if (rdev->raid_disk < 0 &&
!test_bit(Faulty, &rdev->flags))
spares++;
......@@ -4563,7 +4561,7 @@ static int raid5_start_reshape(mddev_t *mddev)
/* Add some new drives, as many as will fit.
* We know there are enough to make the newly sized array work.
*/
rdev_for_each(rdev, rtmp, mddev)
list_for_each_entry(rdev, &mddev->disks, same_set)
if (rdev->raid_disk < 0 &&
!test_bit(Faulty, &rdev->flags)) {
if (raid5_add_disk(mddev, rdev) == 0) {
......
include/linux/raid/md_k.h
View file @ 159ec1fc
......@@ -335,17 +335,14 @@ static inline char * mdname (mddev_t * mddev)
* iterates through some rdev ringlist. It's safe to remove the
* current 'rdev'. Dont touch 'tmp' though.
*/
#define rdev_for_each_list(rdev, tmp, list) \
\
for ((tmp) = (list).next; \
(rdev) = (list_entry((tmp), mdk_rdev_t, same_set)), \
(tmp) = (tmp)->next, (tmp)->prev != &(list) \
; )
#define rdev_for_each_list(rdev, tmp, head) \
list_for_each_entry_safe(rdev, tmp, head, same_set)
/*
* iterates through the 'same array disks' ringlist
*/
#define rdev_for_each(rdev, tmp, mddev) \
rdev_for_each_list(rdev, tmp, (mddev)->disks)
list_for_each_entry_safe(rdev, tmp, &((mddev)->disks), same_set)
#define rdev_for_each_rcu(rdev, mddev) \
list_for_each_entry_rcu(rdev, &((mddev)->disks), same_set)
......
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