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Message-ID: <1311309747.2494.0.camel@Mozart>
Date: Thu, 21 Jul 2011 23:42:27 -0500
From: Calvin Owens <jcalvinowens@...il.com>
To: Neil Brown <neilb@...e.de>, Linux-RAID <linux-raid@...r.kernel.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
Calvin Owens <jcalvinowens@...il.com>
Subject: [PATCH 1/1] md: style/readability cleanups
This patch fixes some lingering CodingStyle issues in the md subsystem.
Signed-off-by: Calvin Owens <jcalvinowens@...il.com>
---
drivers/md/raid0.c | 30 +++++------
drivers/md/raid1.c | 96 +++++++++++++++++------------------
drivers/md/raid10.c | 108 +++++++++++++++++++-------------------
drivers/md/raid5.c | 142 +++++++++++++++++++++++++++------------------------
4 files changed, 190 insertions(+), 186 deletions(-)
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index e86bf36..9d2fbc9 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -103,10 +103,10 @@ static int create_strip_zones(mddev_t *mddev, raid0_conf_t **private_conf)
list_for_each_entry(rdev2, &mddev->disks, same_set) {
printk(KERN_INFO "md/raid0:%s: comparing %s(%llu)",
mdname(mddev),
- bdevname(rdev1->bdev,b),
+ bdevname(rdev1->bdev, b),
(unsigned long long)rdev1->sectors);
printk(KERN_CONT " with %s(%llu)\n",
- bdevname(rdev2->bdev,b),
+ bdevname(rdev2->bdev, b),
(unsigned long long)rdev2->sectors);
if (rdev2 == rdev1) {
printk(KERN_INFO "md/raid0:%s: END\n",
@@ -137,12 +137,11 @@ static int create_strip_zones(mddev_t *mddev, raid0_conf_t **private_conf)
printk(KERN_INFO "md/raid0:%s: FINAL %d zones\n",
mdname(mddev), conf->nr_strip_zones);
err = -ENOMEM;
- conf->strip_zone = kzalloc(sizeof(struct strip_zone)*
- conf->nr_strip_zones, GFP_KERNEL);
+ conf->strip_zone = kzalloc(sizeof(struct strip_zone) * conf->nr_strip_zones,
+ GFP_KERNEL);
if (!conf->strip_zone)
goto abort;
- conf->devlist = kzalloc(sizeof(mdk_rdev_t*)*
- conf->nr_strip_zones*mddev->raid_disks,
+ conf->devlist = kzalloc(sizeof(mdk_rdev_t *) * conf->nr_strip_zones * mddev->raid_disks,
GFP_KERNEL);
if (!conf->devlist)
goto abort;
@@ -224,7 +223,7 @@ static int create_strip_zones(mddev_t *mddev, raid0_conf_t **private_conf)
smallest = NULL;
c = 0;
- for (j=0; j<cnt; j++) {
+ for (j = 0; j < cnt; j++) {
rdev = conf->devlist[j];
printk(KERN_INFO "md/raid0:%s: checking %s ...",
mdname(mddev),
@@ -311,10 +310,11 @@ static int raid0_mergeable_bvec(struct request_queue *q,
else
max = (chunk_sectors - (sector_div(sector, chunk_sectors)
+ bio_sectors)) << 9;
- if (max < 0) max = 0; /* bio_add cannot handle a negative return */
+ if (max < 0)
+ max = 0; /* bio_add cannot handle a negative return */
if (max <= biovec->bv_len && bio_sectors == 0)
return biovec->bv_len;
- else
+ else
return max;
}
@@ -371,10 +371,9 @@ static int raid0_run(mddev_t *mddev)
* chunksize should be used in that case.
*/
{
- int stripe = mddev->raid_disks *
- (mddev->chunk_sectors << 9) / PAGE_SIZE;
- if (mddev->queue->backing_dev_info.ra_pages < 2* stripe)
- mddev->queue->backing_dev_info.ra_pages = 2* stripe;
+ int stripe = mddev->raid_disks * (mddev->chunk_sectors << 9) / PAGE_SIZE;
+ if (mddev->queue->backing_dev_info.ra_pages < 2 * stripe)
+ mddev->queue->backing_dev_info.ra_pages = 2 * stripe;
}
blk_queue_merge_bvec(mddev->queue, raid0_mergeable_bvec);
@@ -624,7 +623,7 @@ static void *raid0_takeover_raid10(mddev_t *mddev)
mddev->new_level = 0;
mddev->new_layout = 0;
mddev->new_chunk_sectors = mddev->chunk_sectors;
- mddev->delta_disks = - mddev->raid_disks / 2;
+ mddev->delta_disks = -mddev->raid_disks / 2;
mddev->raid_disks += mddev->delta_disks;
mddev->degraded = 0;
/* make sure it will be not marked as dirty */
@@ -695,8 +694,7 @@ static void raid0_quiesce(mddev_t *mddev, int state)
{
}
-static struct mdk_personality raid0_personality=
-{
+static struct mdk_personality raid0_personality = {
.name = "raid0",
.level = 0,
.owner = THIS_MODULE,
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index f7431b6..04cf89f 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -55,7 +55,7 @@
static void allow_barrier(conf_t *conf);
static void lower_barrier(conf_t *conf);
-static void * r1bio_pool_alloc(gfp_t gfp_flags, void *data)
+static void *r1bio_pool_alloc(gfp_t gfp_flags, void *data)
{
struct pool_info *pi = data;
int size = offsetof(r1bio_t, bios[pi->raid_disks]);
@@ -75,7 +75,7 @@ static void r1bio_pool_free(void *r1_bio, void *data)
#define RESYNC_PAGES ((RESYNC_BLOCK_SIZE + PAGE_SIZE-1) / PAGE_SIZE)
#define RESYNC_WINDOW (2048*1024)
-static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
+static void *r1buf_pool_alloc(gfp_t gfp_flags, void *data)
{
struct pool_info *pi = data;
struct page *page;
@@ -106,7 +106,7 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
j = pi->raid_disks;
else
j = 1;
- while(j--) {
+ while (j--) {
bio = r1_bio->bios[j];
for (i = 0; i < RESYNC_PAGES; i++) {
page = alloc_page(gfp_flags);
@@ -119,8 +119,8 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
}
/* If not user-requests, copy the page pointers to all bios */
if (!test_bit(MD_RECOVERY_REQUESTED, &pi->mddev->recovery)) {
- for (i=0; i<RESYNC_PAGES ; i++)
- for (j=1; j<pi->raid_disks; j++)
+ for (i = 0; i < RESYNC_PAGES; i++)
+ for (j = 1; j < pi->raid_disks; j++)
r1_bio->bios[j]->bi_io_vec[i].bv_page =
r1_bio->bios[0]->bi_io_vec[i].bv_page;
}
@@ -130,12 +130,12 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
return r1_bio;
out_free_pages:
- for (j=0 ; j < pi->raid_disks; j++)
- for (i=0; i < r1_bio->bios[j]->bi_vcnt ; i++)
+ for (j = 0; j < pi->raid_disks; j++)
+ for (i = 0; i < r1_bio->bios[j]->bi_vcnt; i++)
put_page(r1_bio->bios[j]->bi_io_vec[i].bv_page);
j = -1;
out_free_bio:
- while ( ++j < pi->raid_disks )
+ while (++j < pi->raid_disks)
bio_put(r1_bio->bios[j]);
r1bio_pool_free(r1_bio, data);
return NULL;
@@ -144,7 +144,7 @@ out_free_bio:
static void r1buf_pool_free(void *__r1_bio, void *data)
{
struct pool_info *pi = data;
- int i,j;
+ int i, j;
r1bio_t *r1bio = __r1_bio;
for (i = 0; i < RESYNC_PAGES; i++)
@@ -154,7 +154,7 @@ static void r1buf_pool_free(void *__r1_bio, void *data)
r1bio->bios[0]->bi_io_vec[i].bv_page)
safe_put_page(r1bio->bios[j]->bi_io_vec[i].bv_page);
}
- for (i=0 ; i < pi->raid_disks; i++)
+ for (i = 0; i < pi->raid_disks; i++)
bio_put(r1bio->bios[i]);
r1bio_pool_free(r1bio, data);
@@ -191,7 +191,7 @@ static void put_buf(r1bio_t *r1_bio)
conf_t *conf = r1_bio->mddev->private;
int i;
- for (i=0; i<conf->raid_disks; i++) {
+ for (i = 0; i < conf->raid_disks; i++) {
struct bio *bio = r1_bio->bios[i];
if (bio->bi_end_io)
rdev_dec_pending(conf->mirrors[i].rdev, r1_bio->mddev);
@@ -210,7 +210,7 @@ static void reschedule_retry(r1bio_t *r1_bio)
spin_lock_irqsave(&conf->device_lock, flags);
list_add(&r1_bio->retry_list, &conf->retry_list);
- conf->nr_queued ++;
+ conf->nr_queued++;
spin_unlock_irqrestore(&conf->device_lock, flags);
wake_up(&conf->wait_barrier);
@@ -290,7 +290,7 @@ static void raid1_end_read_request(struct bio *bio, int error)
if (printk_ratelimit())
printk(KERN_ERR "md/raid1:%s: %s: rescheduling sector %llu\n",
mdname(conf->mddev),
- bdevname(conf->mirrors[mirror].rdev->bdev,b), (unsigned long long)r1_bio->sector);
+ bdevname(conf->mirrors[mirror].rdev->bdev, b), (unsigned long long)r1_bio->sector);
reschedule_retry(r1_bio);
}
@@ -299,8 +299,7 @@ static void raid1_end_read_request(struct bio *bio, int error)
static void r1_bio_write_done(r1bio_t *r1_bio)
{
- if (atomic_dec_and_test(&r1_bio->remaining))
- {
+ if (atomic_dec_and_test(&r1_bio->remaining)) {
/* it really is the end of this request */
if (test_bit(R1BIO_BehindIO, &r1_bio->state)) {
/* free extra copy of the data pages */
@@ -666,13 +665,14 @@ static void unfreeze_array(conf_t *conf)
}
-/* duplicate the data pages for behind I/O
+/*
+ * duplicate the data pages for behind I/O
*/
static void alloc_behind_pages(struct bio *bio, r1bio_t *r1_bio)
{
int i;
struct bio_vec *bvec;
- struct page **pages = kzalloc(bio->bi_vcnt * sizeof(struct page*),
+ struct page **pages = kzalloc(bio->bi_vcnt * sizeof(struct page *),
GFP_NOIO);
if (unlikely(!pages))
return;
@@ -855,7 +855,7 @@ static int make_request(mddev_t *mddev, struct bio * bio)
/* do behind I/O ?
* Not if there are too many, or cannot allocate memory,
- * or a reader on WriteMostly is waiting for behind writes
+ * or a reader on WriteMostly is waiting for behind writes
* to flush */
if (bitmap &&
(atomic_read(&bitmap->behind_writes)
@@ -995,7 +995,7 @@ static void print_conf(conf_t *conf)
printk(KERN_DEBUG " disk %d, wo:%d, o:%d, dev:%s\n",
i, !test_bit(In_sync, &rdev->flags),
!test_bit(Faulty, &rdev->flags),
- bdevname(rdev->bdev,b));
+ bdevname(rdev->bdev, b));
}
rcu_read_unlock();
}
@@ -1017,7 +1017,7 @@ static int raid1_spare_active(mddev_t *mddev)
unsigned long flags;
/*
- * Find all failed disks within the RAID1 configuration
+ * Find all failed disks within the RAID1 configuration
* and mark them readable.
* Called under mddev lock, so rcu protection not needed.
*/
@@ -1052,7 +1052,7 @@ static int raid1_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
first = last = rdev->raid_disk;
for (mirror = first; mirror <= last; mirror++)
- if ( !(p=conf->mirrors+mirror)->rdev) {
+ if ( !(p = conf->mirrors + mirror)->rdev) {
disk_stack_limits(mddev->gendisk, rdev->bdev,
rdev->data_offset << 9);
@@ -1089,7 +1089,7 @@ static int raid1_remove_disk(mddev_t *mddev, int number)
conf_t *conf = mddev->private;
int err = 0;
mdk_rdev_t *rdev;
- mirror_info_t *p = conf->mirrors+ number;
+ mirror_info_t *p = conf->mirrors + number;
print_conf(conf);
rdev = p->rdev;
@@ -1130,7 +1130,7 @@ static void end_sync_read(struct bio *bio, int error)
r1bio_t *r1_bio = bio->bi_private;
int i;
- for (i=r1_bio->mddev->raid_disks; i--; )
+ for (i = r1_bio->mddev->raid_disks; i--; )
if (r1_bio->bios[i] == bio)
break;
BUG_ON(i < 0);
@@ -1154,7 +1154,7 @@ static void end_sync_write(struct bio *bio, int error)
mddev_t *mddev = r1_bio->mddev;
conf_t *conf = mddev->private;
int i;
- int mirror=0;
+ int mirror = 0;
for (i = 0; i < conf->raid_disks; i++)
if (r1_bio->bios[i] == bio) {
@@ -1201,7 +1201,7 @@ static int fix_sync_read_error(r1bio_t *r1_bio)
int sectors = r1_bio->sectors;
int idx = 0;
- while(sectors) {
+ while (sectors) {
int s = sectors;
int d = r1_bio->read_disk;
int success = 0;
@@ -1282,7 +1282,7 @@ static int fix_sync_read_error(r1bio_t *r1_bio)
}
sectors -= s;
sect += s;
- idx ++;
+ idx++;
}
set_bit(R1BIO_Uptodate, &r1_bio->state);
set_bit(BIO_UPTODATE, &bio->bi_flags);
@@ -1313,7 +1313,7 @@ static int process_checks(r1bio_t *r1_bio)
r1_bio->read_disk = primary;
for (i = 0; i < conf->raid_disks; i++) {
int j;
- int vcnt = r1_bio->sectors >> (PAGE_SHIFT- 9);
+ int vcnt = r1_bio->sectors >> (PAGE_SHIFT - 9);
struct bio *pbio = r1_bio->bios[primary];
struct bio *sbio = r1_bio->bios[i];
int size;
@@ -1427,7 +1427,7 @@ static void fix_read_error(conf_t *conf, int read_disk,
sector_t sect, int sectors)
{
mddev_t *mddev = conf->mddev;
- while(sectors) {
+ while (sectors) {
int s = sectors;
int d = read_disk;
int success = 0;
@@ -1464,7 +1464,7 @@ static void fix_read_error(conf_t *conf, int read_disk,
/* write it back and re-read */
start = d;
while (d != read_disk) {
- if (d==0)
+ if (d == 0)
d = conf->raid_disks;
d--;
rdev = conf->mirrors[d].rdev;
@@ -1480,7 +1480,7 @@ static void fix_read_error(conf_t *conf, int read_disk,
d = start;
while (d != read_disk) {
char b[BDEVNAME_SIZE];
- if (d==0)
+ if (d == 0)
d = conf->raid_disks;
d--;
rdev = conf->mirrors[d].rdev;
@@ -1497,8 +1497,7 @@ static void fix_read_error(conf_t *conf, int read_disk,
"md/raid1:%s: read error corrected "
"(%d sectors at %llu on %s)\n",
mdname(mddev), s,
- (unsigned long long)(sect +
- rdev->data_offset),
+ (unsigned long long)(sect + rdev->data_offset),
bdevname(rdev->bdev, b));
}
}
@@ -1563,11 +1562,11 @@ static void raid1d(mddev_t *mddev)
conf->mirrors[r1_bio->read_disk].rdev);
bio = r1_bio->bios[r1_bio->read_disk];
- if ((disk=read_balance(conf, r1_bio)) == -1) {
+ if ((disk = read_balance(conf, r1_bio)) == -1) {
printk(KERN_ALERT "md/raid1:%s: %s: unrecoverable I/O"
" read error for block %llu\n",
mdname(mddev),
- bdevname(bio->bi_bdev,b),
+ bdevname(bio->bi_bdev, b),
(unsigned long long)r1_bio->sector);
raid_end_bio_io(r1_bio);
} else {
@@ -1585,7 +1584,7 @@ static void raid1d(mddev_t *mddev)
" other mirror: %s\n",
mdname(mddev),
(unsigned long long)r1_bio->sector,
- bdevname(rdev->bdev,b));
+ bdevname(rdev->bdev, b));
bio->bi_sector = r1_bio->sector + rdev->data_offset;
bio->bi_bdev = rdev->bdev;
bio->bi_end_io = raid1_end_read_request;
@@ -1704,7 +1703,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
r1_bio->state = 0;
set_bit(R1BIO_IsSync, &r1_bio->state);
- for (i=0; i < conf->raid_disks; i++) {
+ for (i = 0; i < conf->raid_disks; i++) {
mdk_rdev_t *rdev;
bio = r1_bio->bios[i];
@@ -1729,7 +1728,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
} else if (!test_bit(In_sync, &rdev->flags)) {
bio->bi_rw = WRITE;
bio->bi_end_io = end_sync_write;
- write_targets ++;
+ write_targets++;
} else {
/* may need to read from here */
bio->bi_rw = READ;
@@ -1789,7 +1788,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
len = sync_blocks<<9;
}
- for (i=0 ; i < conf->raid_disks; i++) {
+ for (i = 0; i < conf->raid_disks; i++) {
bio = r1_bio->bios[i];
if (bio->bi_end_io) {
page = bio->bi_io_vec[bio->bi_vcnt].bv_page;
@@ -1799,12 +1798,12 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
while (i > 0) {
i--;
bio = r1_bio->bios[i];
- if (bio->bi_end_io==NULL)
+ if (bio->bi_end_io == NULL)
continue;
/* remove last page from this bio */
bio->bi_vcnt--;
bio->bi_size -= len;
- bio->bi_flags &= ~(1<< BIO_SEG_VALID);
+ bio->bi_flags &= ~(1 << BIO_SEG_VALID);
}
goto bio_full;
}
@@ -1822,7 +1821,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
*/
if (test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) {
atomic_set(&r1_bio->remaining, read_targets);
- for (i=0; i<conf->raid_disks; i++) {
+ for (i = 0; i < conf->raid_disks; i++) {
bio = r1_bio->bios[i];
if (bio->bi_end_io == end_sync_read) {
md_sync_acct(bio->bi_bdev, nr_sectors);
@@ -1994,7 +1993,7 @@ static int run(mddev_t *mddev)
}
mddev->degraded = 0;
- for (i=0; i < conf->raid_disks; i++)
+ for (i = 0; i < conf->raid_disks; i++)
if (conf->mirrors[i].rdev == NULL ||
!test_bit(In_sync, &conf->mirrors[i].rdev->flags) ||
test_bit(Faulty, &conf->mirrors[i].rdev->flags))
@@ -2007,9 +2006,9 @@ static int run(mddev_t *mddev)
printk(KERN_NOTICE "md/raid1:%s: not clean"
" -- starting background reconstruction\n",
mdname(mddev));
- printk(KERN_INFO
+ printk(KERN_INFO
"md/raid1:%s: active with %d out of %d mirrors\n",
- mdname(mddev), mddev->raid_disks - mddev->degraded,
+ mdname(mddev), mddev->raid_disks - mddev->degraded,
mddev->raid_disks);
/*
@@ -2118,8 +2117,8 @@ static int raid1_reshape(mddev_t *mddev)
raid_disks = mddev->raid_disks + mddev->delta_disks;
if (raid_disks < conf->raid_disks) {
- cnt=0;
- for (d= 0; d < conf->raid_disks; d++)
+ cnt = 0;
+ for (d = 0; d < conf->raid_disks; d++)
if (conf->mirrors[d].rdev)
cnt++;
if (cnt > raid_disks)
@@ -2195,7 +2194,7 @@ static void raid1_quiesce(mddev_t *mddev, int state)
{
conf_t *conf = mddev->private;
- switch(state) {
+ switch (state) {
case 2: /* wake for suspend */
wake_up(&conf->wait_barrier);
break;
@@ -2226,8 +2225,7 @@ static void *raid1_takeover(mddev_t *mddev)
return ERR_PTR(-EINVAL);
}
-static struct mdk_personality raid1_personality =
-{
+static struct mdk_personality raid1_personality = {
.name = "raid1",
.level = 1,
.owner = THIS_MODULE,
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 6e84668..88b5a9f 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -60,7 +60,7 @@
static void allow_barrier(conf_t *conf);
static void lower_barrier(conf_t *conf);
-static void * r10bio_pool_alloc(gfp_t gfp_flags, void *data)
+static void *r10bio_pool_alloc(gfp_t gfp_flags, void *data)
{
conf_t *conf = data;
int size = offsetof(struct r10bio_s, devs[conf->copies]);
@@ -89,7 +89,7 @@ static void r10bio_pool_free(void *r10_bio, void *data)
* one for write (we recover only one drive per r10buf)
*
*/
-static void * r10buf_pool_alloc(gfp_t gfp_flags, void *data)
+static void *r10buf_pool_alloc(gfp_t gfp_flags, void *data)
{
conf_t *conf = data;
struct page *page;
@@ -141,7 +141,7 @@ out_free_pages:
safe_put_page(r10_bio->devs[j].bio->bi_io_vec[i].bv_page);
j = -1;
out_free_bio:
- while ( ++j < nalloc )
+ while (++j < nalloc)
bio_put(r10_bio->devs[j].bio);
r10bio_pool_free(r10_bio, conf);
return NULL;
@@ -154,7 +154,7 @@ static void r10buf_pool_free(void *__r10_bio, void *data)
r10bio_t *r10bio = __r10_bio;
int j;
- for (j=0; j < conf->copies; j++) {
+ for (j = 0; j < conf->copies; j++) {
struct bio *bio = r10bio->devs[j].bio;
if (bio) {
for (i = 0; i < RESYNC_PAGES; i++) {
@@ -172,7 +172,7 @@ static void put_all_bios(conf_t *conf, r10bio_t *r10_bio)
int i;
for (i = 0; i < conf->copies; i++) {
- struct bio **bio = & r10_bio->devs[i].bio;
+ struct bio **bio = &r10_bio->devs[i].bio;
if (*bio && *bio != IO_BLOCKED)
bio_put(*bio);
*bio = NULL;
@@ -210,7 +210,7 @@ static void reschedule_retry(r10bio_t *r10_bio)
spin_lock_irqsave(&conf->device_lock, flags);
list_add(&r10_bio->retry_list, &conf->retry_list);
- conf->nr_queued ++;
+ conf->nr_queued++;
spin_unlock_irqrestore(&conf->device_lock, flags);
/* wake up frozen array... */
@@ -280,7 +280,7 @@ static void raid10_end_read_request(struct bio *bio, int error)
if (printk_ratelimit())
printk(KERN_ERR "md/raid10:%s: %s: rescheduling sector %llu\n",
mdname(conf->mddev),
- bdevname(conf->mirrors[dev].rdev->bdev,b), (unsigned long long)r10_bio->sector);
+ bdevname(conf->mirrors[dev].rdev->bdev, b), (unsigned long long)r10_bio->sector);
reschedule_retry(r10_bio);
}
}
@@ -364,7 +364,7 @@ static void raid10_end_write_request(struct bio *bio, int error)
static void raid10_find_phys(conf_t *conf, r10bio_t *r10bio)
{
- int n,f;
+ int n, f;
sector_t sector;
sector_t chunk;
sector_t stripe;
@@ -385,7 +385,7 @@ static void raid10_find_phys(conf_t *conf, r10bio_t *r10bio)
sector += stripe << conf->chunk_shift;
/* and calculate all the others */
- for (n=0; n < conf->near_copies; n++) {
+ for (n = 0; n < conf->near_copies; n++) {
int d = dev;
sector_t s = sector;
r10bio->devs[slot].addr = sector;
@@ -458,7 +458,8 @@ static int raid10_mergeable_bvec(struct request_queue *q,
unsigned int bio_sectors = bvm->bi_size >> 9;
max = (chunk_sectors - ((sector & (chunk_sectors - 1)) + bio_sectors)) << 9;
- if (max < 0) max = 0; /* bio_add cannot handle a negative return */
+ if (max < 0)
+ max = 0; /* bio_add cannot handle a negative return */
if (max <= biovec->bv_len && bio_sectors == 0)
return biovec->bv_len;
else
@@ -743,7 +744,7 @@ static int make_request(mddev_t *mddev, struct bio * bio)
/* If this request crosses a chunk boundary, we need to
* split it. This will only happen for 1 PAGE (or less) requests.
*/
- if (unlikely( (bio->bi_sector & conf->chunk_mask) + (bio->bi_size >> 9)
+ if (unlikely((bio->bi_sector & conf->chunk_mask) + (bio->bi_size >> 9)
> chunk_sects &&
conf->near_copies < conf->raid_disks)) {
struct bio_pair *bp;
@@ -755,7 +756,7 @@ static int make_request(mddev_t *mddev, struct bio * bio)
* refuse to split for us, so we need to split it.
*/
bp = bio_split(bio,
- chunk_sects - (bio->bi_sector & (chunk_sects - 1)) );
+ chunk_sects - (bio->bi_sector & (chunk_sects - 1)));
/* Each of these 'make_request' calls will call 'wait_barrier'.
* If the first succeeds but the second blocks due to the resync
@@ -781,7 +782,7 @@ static int make_request(mddev_t *mddev, struct bio * bio)
bio_pair_release(bp);
return 0;
- bad_map:
+bad_map:
printk("md/raid10:%s: make_request bug: can't convert block across chunks"
" or bigger than %dk %llu %d\n", mdname(mddev), chunk_sects/2,
(unsigned long long)bio->bi_sector, bio->bi_size >> 10);
@@ -1008,8 +1009,8 @@ static void print_conf(conf_t *conf)
if (tmp->rdev)
printk(KERN_DEBUG " disk %d, wo:%d, o:%d, dev:%s\n",
i, !test_bit(In_sync, &tmp->rdev->flags),
- !test_bit(Faulty, &tmp->rdev->flags),
- bdevname(tmp->rdev->bdev,b));
+ !test_bit(Faulty, &tmp->rdev->flags),
+ bdevname(tmp->rdev->bdev, b));
}
}
@@ -1100,7 +1101,7 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
else
mirror = first;
for ( ; mirror <= last ; mirror++)
- if ( !(p=conf->mirrors+mirror)->rdev) {
+ if (!(p = conf->mirrors+mirror)->rdev) {
disk_stack_limits(mddev->gendisk, rdev->bdev,
rdev->data_offset << 9);
@@ -1135,7 +1136,7 @@ static int raid10_remove_disk(mddev_t *mddev, int number)
conf_t *conf = mddev->private;
int err = 0;
mdk_rdev_t *rdev;
- mirror_info_t *p = conf->mirrors+ number;
+ mirror_info_t *p = conf->mirrors + number;
print_conf(conf);
rdev = p->rdev;
@@ -1174,9 +1175,9 @@ static void end_sync_read(struct bio *bio, int error)
{
r10bio_t *r10_bio = bio->bi_private;
conf_t *conf = r10_bio->mddev->private;
- int i,d;
+ int i, d;
- for (i=0; i<conf->copies; i++)
+ for (i = 0; i < conf->copies; i++)
if (r10_bio->devs[i].bio == bio)
break;
BUG_ON(i == conf->copies);
@@ -1212,7 +1213,7 @@ static void end_sync_write(struct bio *bio, int error)
r10bio_t *r10_bio = bio->bi_private;
mddev_t *mddev = r10_bio->mddev;
conf_t *conf = mddev->private;
- int i,d;
+ int i, d;
for (i = 0; i < conf->copies; i++)
if (r10_bio->devs[i].bio == bio)
@@ -1265,7 +1266,7 @@ static void sync_request_write(mddev_t *mddev, r10bio_t *r10_bio)
atomic_set(&r10_bio->remaining, 1);
/* find the first device with a block */
- for (i=0; i<conf->copies; i++)
+ for (i = 0; i < conf->copies; i++)
if (test_bit(BIO_UPTODATE, &r10_bio->devs[i].bio->bi_flags))
break;
@@ -1276,7 +1277,7 @@ static void sync_request_write(mddev_t *mddev, r10bio_t *r10_bio)
fbio = r10_bio->devs[i].bio;
/* now find blocks with errors */
- for (i=0 ; i < conf->copies ; i++) {
+ for (i = 0 ; i < conf->copies ; i++) {
int j, d;
int vcnt = r10_bio->sectors >> (PAGE_SHIFT-9);
@@ -1318,7 +1319,7 @@ static void sync_request_write(mddev_t *mddev, r10bio_t *r10_bio)
tbio->bi_private = r10_bio;
tbio->bi_sector = r10_bio->devs[i].addr;
- for (j=0; j < vcnt ; j++) {
+ for (j = 0; j < vcnt ; j++) {
tbio->bi_io_vec[j].bv_offset = 0;
tbio->bi_io_vec[j].bv_len = PAGE_SIZE;
@@ -1368,7 +1369,7 @@ static void recovery_request_write(mddev_t *mddev, r10bio_t *r10_bio)
*/
bio = r10_bio->devs[0].bio;
wbio = r10_bio->devs[1].bio;
- for (i=0; i < wbio->bi_vcnt; i++) {
+ for (i = 0; i < wbio->bi_vcnt; i++) {
struct page *p = bio->bi_io_vec[i].bv_page;
bio->bi_io_vec[i].bv_page = wbio->bi_io_vec[i].bv_page;
wbio->bi_io_vec[i].bv_page = p;
@@ -1433,7 +1434,7 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio)
{
int sect = 0; /* Offset from r10_bio->sector */
int sectors = r10_bio->sectors;
- mdk_rdev_t*rdev;
+ mdk_rdev_t *rdev;
int max_read_errors = atomic_read(&mddev->max_corr_read_errors);
int d = r10_bio->devs[r10_bio->read_slot].devnum;
@@ -1465,7 +1466,7 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio)
return;
}
- while(sectors) {
+ while (sectors) {
int s = sectors;
int sl = r10_bio->read_slot;
int success = 0;
@@ -1511,7 +1512,7 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio)
while (sl != r10_bio->read_slot) {
char b[BDEVNAME_SIZE];
- if (sl==0)
+ if (sl == 0)
sl = conf->copies;
sl--;
d = r10_bio->devs[sl].devnum;
@@ -1548,7 +1549,7 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio)
sl = start;
while (sl != r10_bio->read_slot) {
- if (sl==0)
+ if (sl == 0)
sl = conf->copies;
sl--;
d = r10_bio->devs[sl].devnum;
@@ -1658,7 +1659,7 @@ static void raid10d(mddev_t *mddev)
printk(KERN_ALERT "md/raid10:%s: %s: unrecoverable I/O"
" read error for block %llu\n",
mdname(mddev),
- bdevname(bio->bi_bdev,b),
+ bdevname(bio->bi_bdev, b),
(unsigned long long)r10_bio->sector);
raid_end_bio_io(r10_bio);
bio_put(bio);
@@ -1669,10 +1670,10 @@ static void raid10d(mddev_t *mddev)
rdev = conf->mirrors[mirror].rdev;
if (printk_ratelimit())
printk(KERN_ERR "md/raid10:%s: %s: redirecting sector %llu to"
- " another mirror\n",
- mdname(mddev),
- bdevname(rdev->bdev,b),
- (unsigned long long)r10_bio->sector);
+ " another mirror\n",
+ mdname(mddev),
+ bdevname(rdev->bdev, b),
+ (unsigned long long)r10_bio->sector);
bio = bio_clone_mddev(r10_bio->master_bio,
GFP_NOIO, mddev);
r10_bio->devs[slot].bio = bio;
@@ -1772,7 +1773,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr,
if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery))
bitmap_end_sync(mddev->bitmap, mddev->curr_resync,
&sync_blocks, 1);
- else for (i=0; i<conf->raid_disks; i++) {
+ else for (i = 0; i < conf->raid_disks; i++) {
sector_t sect =
raid10_find_virt(conf, mddev->curr_resync, i);
bitmap_end_sync(mddev->bitmap, sect,
@@ -1831,14 +1832,14 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr,
int j, k;
r10_bio = NULL;
- for (i=0 ; i<conf->raid_disks; i++) {
+ for (i = 0 ; i < conf->raid_disks; i++) {
int still_degraded;
r10bio_t *rb2;
sector_t sect;
int must_sync;
if (conf->mirrors[i].rdev == NULL ||
- test_bit(In_sync, &conf->mirrors[i].rdev->flags))
+ test_bit(In_sync, &conf->mirrors[i].rdev->flags))
continue;
still_degraded = 0;
@@ -1865,7 +1866,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr,
raise_barrier(conf, rb2 != NULL);
atomic_set(&r10_bio->remaining, 0);
- r10_bio->master_bio = (struct bio*)rb2;
+ r10_bio->master_bio = (struct bio *)rb2;
if (rb2)
atomic_inc(&rb2->remaining);
r10_bio->mddev = mddev;
@@ -1877,7 +1878,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr,
/* Need to check if the array will still be
* degraded
*/
- for (j=0; j<conf->raid_disks; j++)
+ for (j = 0; j < conf->raid_disks; j++)
if (conf->mirrors[j].rdev == NULL ||
test_bit(Faulty, &conf->mirrors[j].rdev->flags)) {
still_degraded = 1;
@@ -1887,7 +1888,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr,
must_sync = bitmap_start_sync(mddev->bitmap, sect,
&sync_blocks, still_degraded);
- for (j=0; j<conf->copies;j++) {
+ for (j = 0; j < conf->copies; j++) {
int d = r10_bio->devs[j].devnum;
if (!conf->mirrors[d].rdev ||
!test_bit(In_sync, &conf->mirrors[d].rdev->flags))
@@ -1906,7 +1907,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr,
atomic_inc(&r10_bio->remaining);
/* and we write to 'i' */
- for (k=0; k<conf->copies; k++)
+ for (k = 0; k < conf->copies; k++)
if (r10_bio->devs[k].devnum == i)
break;
BUG_ON(k == conf->copies);
@@ -1942,7 +1943,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr,
if (biolist == NULL) {
while (r10_bio) {
r10bio_t *rb2 = r10_bio;
- r10_bio = (r10bio_t*) rb2->master_bio;
+ r10_bio = (r10bio_t *) rb2->master_bio;
rb2->master_bio = NULL;
put_buf(rb2);
}
@@ -1975,9 +1976,9 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr,
r10_bio->sector = sector_nr;
set_bit(R10BIO_IsSync, &r10_bio->state);
raid10_find_phys(conf, r10_bio);
- r10_bio->sectors = (sector_nr | conf->chunk_mask) - sector_nr +1;
+ r10_bio->sectors = (sector_nr | conf->chunk_mask) - sector_nr + 1;
- for (i=0; i<conf->copies; i++) {
+ for (i = 0; i < conf->copies; i++) {
int d = r10_bio->devs[i].devnum;
bio = r10_bio->devs[i].bio;
bio->bi_end_io = NULL;
@@ -1999,7 +2000,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr,
}
if (count < 2) {
- for (i=0; i<conf->copies; i++) {
+ for (i = 0; i < conf->copies; i++) {
int d = r10_bio->devs[i].devnum;
if (r10_bio->devs[i].bio->bi_end_io)
rdev_dec_pending(conf->mirrors[d].rdev,
@@ -2011,7 +2012,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr,
}
}
- for (bio = biolist; bio ; bio=bio->bi_next) {
+ for (bio = biolist; bio ; bio = bio->bi_next) {
bio->bi_flags &= ~(BIO_POOL_MASK - 1);
if (bio->bi_end_io)
@@ -2032,7 +2033,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr,
len = (max_sector - sector_nr) << 9;
if (len == 0)
break;
- for (bio= biolist ; bio ; bio=bio->bi_next) {
+ for (bio = biolist ; bio ; bio = bio->bi_next) {
struct bio *bio2;
page = bio->bi_io_vec[bio->bi_vcnt].bv_page;
if (bio_add_page(bio, page, len, 0))
@@ -2046,7 +2047,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr,
/* remove last page from this bio */
bio2->bi_vcnt--;
bio2->bi_size -= len;
- bio2->bi_flags &= ~(1<< BIO_SEG_VALID);
+ bio2->bi_flags &= ~(1 << BIO_SEG_VALID);
}
goto bio_full;
}
@@ -2085,7 +2086,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr,
max_sector = sector_nr + max_sync;
sectors_skipped += (max_sector - sector_nr);
- chunks_skipped ++;
+ chunks_skipped++;
sector_nr = max_sector;
goto skipped;
}
@@ -2129,7 +2130,7 @@ static conf_t *setup_conf(mddev_t *mddev)
fc = (mddev->new_layout >> 8) & 255;
fo = mddev->new_layout & (1<<16);
- if ((nc*fc) <2 || (nc*fc) > mddev->raid_disks ||
+ if ((nc*fc) < 2 || (nc*fc) > mddev->raid_disks ||
(mddev->new_layout >> 17)) {
printk(KERN_ERR "md/raid10:%s: unsupported raid10 layout: 0x%8x\n",
mdname(mddev), mddev->new_layout);
@@ -2318,8 +2319,8 @@ static int run(mddev_t *mddev)
int stripe = conf->raid_disks *
((mddev->chunk_sectors << 9) / PAGE_SIZE);
stripe /= conf->near_copies;
- if (mddev->queue->backing_dev_info.ra_pages < 2* stripe)
- mddev->queue->backing_dev_info.ra_pages = 2* stripe;
+ if (mddev->queue->backing_dev_info.ra_pages < 2 * stripe)
+ mddev->queue->backing_dev_info.ra_pages = 2 * stripe;
}
if (conf->near_copies < conf->raid_disks)
@@ -2364,7 +2365,7 @@ static void raid10_quiesce(mddev_t *mddev, int state)
{
conf_t *conf = mddev->private;
- switch(state) {
+ switch (state) {
case 1:
raise_barrier(conf, 0);
break;
@@ -2427,8 +2428,7 @@ static void *raid10_takeover(mddev_t *mddev)
return ERR_PTR(-EINVAL);
}
-static struct mdk_personality raid10_personality =
-{
+static struct mdk_personality raid10_personality = {
.name = "raid10",
.level = 10,
.owner = THIS_MODULE,
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index b72edf3..4df49a6 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -197,7 +197,7 @@ static void __release_stripe(raid5_conf_t *conf, struct stripe_head *sh)
{
if (atomic_dec_and_test(&sh->count)) {
BUG_ON(!list_empty(&sh->lru));
- BUG_ON(atomic_read(&conf->active_stripes)==0);
+ BUG_ON(atomic_read(&conf->active_stripes) == 0);
if (test_bit(STRIPE_HANDLE, &sh->state)) {
if (test_bit(STRIPE_DELAYED, &sh->state))
list_add_tail(&sh->lru, &conf->delayed_list);
@@ -456,7 +456,7 @@ get_active_stripe(raid5_conf_t *conf, sector_t sector,
wait_event_lock_irq(conf->wait_for_stripe,
!list_empty(&conf->inactive_list) &&
(atomic_read(&conf->active_stripes)
- < (conf->max_nr_stripes *3/4)
+ < (conf->max_nr_stripes * 3/4)
|| !conf->inactive_blocked),
conf->device_lock,
);
@@ -1472,9 +1472,9 @@ static int resize_stripes(raid5_conf_t *conf, int newsize)
osh = get_free_stripe(conf);
spin_unlock_irq(&conf->device_lock);
atomic_set(&nsh->count, 1);
- for(i=0; i<conf->pool_size; i++)
+ for (i = 0; i < conf->pool_size; i++)
nsh->dev[i].page = osh->dev[i].page;
- for( ; i<newsize; i++)
+ for ( ; i < newsize; i++)
nsh->dev[i].page = NULL;
kmem_cache_free(conf->slab_cache, osh);
}
@@ -1487,7 +1487,7 @@ static int resize_stripes(raid5_conf_t *conf, int newsize)
*/
ndisks = kzalloc(newsize * sizeof(struct disk_info), GFP_NOIO);
if (ndisks) {
- for (i=0; i<conf->raid_disks; i++)
+ for (i = 0; i < conf->raid_disks; i++)
ndisks[i] = conf->disks[i];
kfree(conf->disks);
conf->disks = ndisks;
@@ -1514,11 +1514,11 @@ static int resize_stripes(raid5_conf_t *conf, int newsize)
put_online_cpus();
/* Step 4, return new stripes to service */
- while(!list_empty(&newstripes)) {
+ while (!list_empty(&newstripes)) {
nsh = list_entry(newstripes.next, struct stripe_head, lru);
list_del_init(&nsh->lru);
- for (i=conf->raid_disks; i < newsize; i++)
+ for (i = conf->raid_disks; i < newsize; i++)
if (nsh->dev[i].page == NULL) {
struct page *p = alloc_page(GFP_NOIO);
nsh->dev[i].page = p;
@@ -1561,7 +1561,7 @@ static void shrink_stripes(raid5_conf_t *conf)
conf->slab_cache = NULL;
}
-static void raid5_end_read_request(struct bio * bi, int error)
+static void raid5_end_read_request(struct bio *bi, int error)
{
struct stripe_head *sh = bi->bi_private;
raid5_conf_t *conf = sh->raid_conf;
@@ -1571,7 +1571,7 @@ static void raid5_end_read_request(struct bio * bi, int error)
mdk_rdev_t *rdev;
- for (i=0 ; i<disks; i++)
+ for (i = 0; i < disks; i++)
if (bi == &sh->dev[i].req)
break;
@@ -1650,7 +1650,7 @@ static void raid5_end_write_request(struct bio *bi, int error)
int disks = sh->disks, i;
int uptodate = test_bit(BIO_UPTODATE, &bi->bi_flags);
- for (i=0 ; i<disks; i++)
+ for (i = 0; i < disks; i++)
if (bi == &sh->dev[i].req)
break;
@@ -1666,7 +1666,7 @@ static void raid5_end_write_request(struct bio *bi, int error)
md_error(conf->mddev, conf->disks[i].rdev);
rdev_dec_pending(conf->disks[i].rdev, conf->mddev);
-
+
clear_bit(R5_LOCKED, &sh->dev[i].flags);
set_bit(STRIPE_HANDLE, &sh->state);
release_stripe(sh);
@@ -1674,7 +1674,7 @@ static void raid5_end_write_request(struct bio *bi, int error)
static sector_t compute_blocknr(struct stripe_head *sh, int i, int previous);
-
+
static void raid5_build_block(struct stripe_head *sh, int i, int previous)
{
struct r5dev *dev = &sh->dev[i];
@@ -1761,7 +1761,7 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
* Select the parity disk based on the user selected algorithm.
*/
pd_idx = qd_idx = ~0;
- switch(conf->level) {
+ switch (conf->level) {
case 4:
pd_idx = data_disks;
break;
@@ -1951,8 +1951,9 @@ static sector_t compute_blocknr(struct stripe_head *sh, int i, int previous)
if (i == sh->pd_idx)
return 0;
- switch(conf->level) {
- case 4: break;
+ switch (conf->level) {
+ case 4:
+ break;
case 5:
switch (algorithm) {
case ALGORITHM_LEFT_ASYMMETRIC:
@@ -2141,7 +2142,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
{
struct bio **bip;
raid5_conf_t *conf = sh->raid_conf;
- int firstwrite=0;
+ int firstwrite = 0;
pr_debug("adding bh b#%llu to stripe s#%llu\n",
(unsigned long long)bi->bi_sector,
@@ -2159,7 +2160,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
while (*bip && (*bip)->bi_sector < bi->bi_sector) {
if ((*bip)->bi_sector + ((*bip)->bi_size >> 9) > bi->bi_sector)
goto overlap;
- bip = & (*bip)->bi_next;
+ bip = &(*bip)->bi_next;
}
if (*bip && (*bip)->bi_sector < bi->bi_sector + ((bi->bi_size)>>9))
goto overlap;
@@ -2186,12 +2187,12 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
if (forwrite) {
/* check if page is covered */
sector_t sector = sh->dev[dd_idx].sector;
- for (bi=sh->dev[dd_idx].towrite;
+ for (bi = sh->dev[dd_idx].towrite;
sector < sh->dev[dd_idx].sector + STRIPE_SECTORS &&
bi && bi->bi_sector <= sector;
bi = r5_next_bio(bi, sh->dev[dd_idx].sector)) {
- if (bi->bi_sector + (bi->bi_size>>9) >= sector)
- sector = bi->bi_sector + (bi->bi_size>>9);
+ if (bi->bi_sector + (bi->bi_size >> 9) >= sector)
+ sector = bi->bi_sector + (bi->bi_size >> 9);
}
if (sector >= sh->dev[dd_idx].sector + STRIPE_SECTORS)
set_bit(R5_OVERWRITE, &sh->dev[dd_idx].flags);
@@ -2268,7 +2269,8 @@ handle_failed_stripe(raid5_conf_t *conf, struct stripe_head *sh,
/* and fail all 'written' */
bi = sh->dev[i].written;
sh->dev[i].written = NULL;
- if (bi) bitmap_end = 1;
+ if (bi)
+ bitmap_end = 1;
while (bi && bi->bi_sector <
sh->dev[i].sector + STRIPE_SECTORS) {
struct bio *bi2 = r5_next_bio(bi, sh->dev[i].sector);
@@ -2291,7 +2293,8 @@ handle_failed_stripe(raid5_conf_t *conf, struct stripe_head *sh,
sh->dev[i].toread = NULL;
if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
wake_up(&conf->wait_for_overlap);
- if (bi) s->to_read--;
+ if (bi)
+ s->to_read--;
while (bi && bi->bi_sector <
sh->dev[i].sector + STRIPE_SECTORS) {
struct bio *nextbi =
@@ -2561,9 +2564,10 @@ static void handle_stripe_dirtying5(raid5_conf_t *conf,
!test_bit(R5_LOCKED, &dev->flags) &&
!(test_bit(R5_UPTODATE, &dev->flags) ||
test_bit(R5_Wantcompute, &dev->flags))) {
- if (test_bit(R5_Insync, &dev->flags)) rcw++;
+ if (test_bit(R5_Insync, &dev->flags))
+ rcw++;
else
- rcw += 2*disks;
+ rcw += 2 * disks;
}
}
pr_debug("for sector %llu, rmw=%d rcw=%d\n",
@@ -3033,7 +3037,7 @@ static void handle_stripe5(struct stripe_head *sh)
/* Now to look around and see what can be done */
rcu_read_lock();
- for (i=disks; i--; ) {
+ for (i = disks; i--; ) {
mdk_rdev_t *rdev;
dev = &sh->dev[i];
@@ -3052,9 +3056,12 @@ static void handle_stripe5(struct stripe_head *sh)
set_bit(R5_Wantfill, &dev->flags);
/* now count some things */
- if (test_bit(R5_LOCKED, &dev->flags)) s.locked++;
- if (test_bit(R5_UPTODATE, &dev->flags)) s.uptodate++;
- if (test_bit(R5_Wantcompute, &dev->flags)) s.compute++;
+ if (test_bit(R5_LOCKED, &dev->flags))
+ s.locked++;
+ if (test_bit(R5_UPTODATE, &dev->flags))
+ s.uptodate++;
+ if (test_bit(R5_Wantcompute, &dev->flags))
+ s.compute++;
if (test_bit(R5_Wantfill, &dev->flags))
s.to_fill++;
@@ -3120,10 +3127,10 @@ static void handle_stripe5(struct stripe_head *sh)
/* check if the array has lost two devices and, if so, some requests might
* need to be failed
*/
- if (s.failed > 1 && s.to_read+s.to_write+s.written)
+ if (s.failed > 1 && s.to_read + s.to_write + s.written)
handle_failed_stripe(conf, sh, &s, disks, &return_bi);
if (s.failed > 1 && s.syncing) {
- md_done_sync(conf->mddev, STRIPE_SECTORS,0);
+ md_done_sync(conf->mddev, STRIPE_SECTORS, 0);
clear_bit(STRIPE_SYNCING, &sh->state);
s.syncing = 0;
}
@@ -3132,7 +3139,7 @@ static void handle_stripe5(struct stripe_head *sh)
* is safe, or on a failed drive
*/
dev = &sh->dev[sh->pd_idx];
- if ( s.written &&
+ if (s.written &&
((test_bit(R5_Insync, &dev->flags) &&
!test_bit(R5_LOCKED, &dev->flags) &&
test_bit(R5_UPTODATE, &dev->flags)) ||
@@ -3199,7 +3206,7 @@ static void handle_stripe5(struct stripe_head *sh)
handle_parity_checks5(conf, sh, &s, disks);
if (s.syncing && s.locked == 0 && test_bit(STRIPE_INSYNC, &sh->state)) {
- md_done_sync(conf->mddev, STRIPE_SECTORS,1);
+ md_done_sync(conf->mddev, STRIPE_SECTORS, 1);
clear_bit(STRIPE_SYNCING, &sh->state);
}
@@ -3324,7 +3331,7 @@ static void handle_stripe6(struct stripe_head *sh)
/* Now to look around and see what can be done */
rcu_read_lock();
- for (i=disks; i--; ) {
+ for (i = disks; i--; ) {
mdk_rdev_t *rdev;
dev = &sh->dev[i];
@@ -3340,8 +3347,10 @@ static void handle_stripe6(struct stripe_head *sh)
set_bit(R5_Wantfill, &dev->flags);
/* now count some things */
- if (test_bit(R5_LOCKED, &dev->flags)) s.locked++;
- if (test_bit(R5_UPTODATE, &dev->flags)) s.uptodate++;
+ if (test_bit(R5_LOCKED, &dev->flags))
+ s.locked++;
+ if (test_bit(R5_UPTODATE, &dev->flags))
+ s.uptodate++;
if (test_bit(R5_Wantcompute, &dev->flags)) {
s.compute++;
BUG_ON(s.compute > 2);
@@ -3412,10 +3421,10 @@ static void handle_stripe6(struct stripe_head *sh)
/* check if the array has lost >2 devices and, if so, some requests
* might need to be failed
*/
- if (s.failed > 2 && s.to_read+s.to_write+s.written)
+ if (s.failed > 2 && s.to_read + s.to_write + s.written)
handle_failed_stripe(conf, sh, &s, disks, &return_bi);
if (s.failed > 2 && s.syncing) {
- md_done_sync(conf->mddev, STRIPE_SECTORS,0);
+ md_done_sync(conf->mddev, STRIPE_SECTORS, 0);
clear_bit(STRIPE_SYNCING, &sh->state);
s.syncing = 0;
}
@@ -3431,11 +3440,11 @@ static void handle_stripe6(struct stripe_head *sh)
r6s.q_failed = (s.failed >= 1 && r6s.failed_num[0] == qd_idx)
|| (s.failed >= 2 && r6s.failed_num[1] == qd_idx);
- if ( s.written &&
- ( r6s.p_failed || ((test_bit(R5_Insync, &pdev->flags)
+ if (s.written &&
+ (r6s.p_failed || ((test_bit(R5_Insync, &pdev->flags)
&& !test_bit(R5_LOCKED, &pdev->flags)
&& test_bit(R5_UPTODATE, &pdev->flags)))) &&
- ( r6s.q_failed || ((test_bit(R5_Insync, &qdev->flags)
+ (r6s.q_failed || ((test_bit(R5_Insync, &qdev->flags)
&& !test_bit(R5_LOCKED, &qdev->flags)
&& test_bit(R5_UPTODATE, &qdev->flags)))))
handle_stripe_clean_event(conf, sh, disks, &return_bi);
@@ -3498,7 +3507,7 @@ static void handle_stripe6(struct stripe_head *sh)
handle_parity_checks6(conf, sh, &s, &r6s, disks);
if (s.syncing && s.locked == 0 && test_bit(STRIPE_INSYNC, &sh->state)) {
- md_done_sync(conf->mddev, STRIPE_SECTORS,1);
+ md_done_sync(conf->mddev, STRIPE_SECTORS, 1);
clear_bit(STRIPE_SYNCING, &sh->state);
}
@@ -3682,7 +3691,8 @@ static int raid5_mergeable_bvec(struct request_queue *q,
if (mddev->new_chunk_sectors < mddev->chunk_sectors)
chunk_sectors = mddev->new_chunk_sectors;
max = (chunk_sectors - ((sector & (chunk_sectors - 1)) + bio_sectors)) << 9;
- if (max < 0) max = 0;
+ if (max < 0)
+ max = 0;
if (max <= biovec->bv_len && bio_sectors == 0)
return biovec->bv_len;
else
@@ -3706,7 +3716,7 @@ static int in_chunk_boundary(mddev_t *mddev, struct bio *bio)
* add bio to the retry LIFO ( in O(1) ... we are in interrupt )
* later sampled by raid5d.
*/
-static void add_bio_to_retry(struct bio *bi,raid5_conf_t *conf)
+static void add_bio_to_retry(struct bio *bi, raid5_conf_t *conf)
{
unsigned long flags;
@@ -3730,7 +3740,7 @@ static struct bio *remove_bio_from_retry(raid5_conf_t *conf)
return bi;
}
bi = conf->retry_read_aligned_list;
- if(bi) {
+ if (bi) {
conf->retry_read_aligned_list = bi->bi_next;
bi->bi_next = NULL;
/*
@@ -3752,7 +3762,7 @@ static struct bio *remove_bio_from_retry(raid5_conf_t *conf)
*/
static void raid5_align_endio(struct bio *bi, int error)
{
- struct bio* raid_bi = bi->bi_private;
+ struct bio *raid_bi = bi->bi_private;
mddev_t *mddev;
raid5_conf_t *conf;
int uptodate = test_bit(BIO_UPTODATE, &bi->bi_flags);
@@ -3760,7 +3770,7 @@ static void raid5_align_endio(struct bio *bi, int error)
bio_put(bi);
- rdev = (void*)raid_bi->bi_next;
+ rdev = (void *)raid_bi->bi_next;
raid_bi->bi_next = NULL;
mddev = rdev->mddev;
conf = mddev->private;
@@ -3804,7 +3814,7 @@ static int chunk_aligned_read(mddev_t *mddev, struct bio * raid_bio)
{
raid5_conf_t *conf = mddev->private;
int dd_idx;
- struct bio* align_bi;
+ struct bio *align_bi;
mdk_rdev_t *rdev;
if (!in_chunk_boundary(mddev, raid_bio)) {
@@ -3835,7 +3845,7 @@ static int chunk_aligned_read(mddev_t *mddev, struct bio * raid_bio)
if (rdev && test_bit(In_sync, &rdev->flags)) {
atomic_inc(&rdev->nr_pending);
rcu_read_unlock();
- raid_bio->bi_next = (void*)rdev;
+ raid_bio->bi_next = (void *)rdev;
align_bi->bi_bdev = rdev->bdev;
align_bi->bi_flags &= ~(1 << BIO_SEG_VALID);
align_bi->bi_sector += rdev->data_offset;
@@ -3936,7 +3946,7 @@ static int make_request(mddev_t *mddev, struct bio * bi)
if (rw == READ &&
mddev->reshape_position == MaxSector &&
- chunk_aligned_read(mddev,bi))
+ chunk_aligned_read(mddev, bi))
return 0;
logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1);
@@ -3945,7 +3955,7 @@ static int make_request(mddev_t *mddev, struct bio * bi)
bi->bi_phys_segments = 1; /* over-loaded to count active stripes */
plugged = mddev_check_plugged(mddev);
- for (;logical_sector < last_sector; logical_sector += STRIPE_SECTORS) {
+ for ( ;logical_sector < last_sector; logical_sector += STRIPE_SECTORS) {
DEFINE_WAIT(w);
int disks, data_disks;
int previous;
@@ -3986,7 +3996,7 @@ static int make_request(mddev_t *mddev, struct bio * bi)
previous,
&dd_idx, NULL);
pr_debug("raid456: make_request, sector %llu logical %llu\n",
- (unsigned long long)new_sector,
+ (unsigned long long)new_sector,
(unsigned long long)logical_sector);
sh = get_active_stripe(conf, new_sector, previous,
@@ -4057,7 +4067,7 @@ static int make_request(mddev_t *mddev, struct bio * bi)
finish_wait(&conf->wait_for_overlap, &w);
break;
}
-
+
}
if (!plugged)
md_wakeup_thread(mddev->thread);
@@ -4067,7 +4077,7 @@ static int make_request(mddev_t *mddev, struct bio * bi)
spin_unlock_irq(&conf->device_lock);
if (remaining == 0) {
- if ( rw == WRITE )
+ if (rw == WRITE)
md_write_end(mddev);
bio_endio(bi, 0);
@@ -4176,7 +4186,7 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped
time_after(jiffies, conf->reshape_checkpoint + 10*HZ)) {
/* Cannot proceed until we've updated the superblock... */
wait_event(conf->wait_for_overlap,
- atomic_read(&conf->reshape_stripes)==0);
+ atomic_read(&conf->reshape_stripes) == 0);
mddev->reshape_position = conf->reshape_progress;
mddev->curr_resync_completed = sector_nr;
conf->reshape_checkpoint = jiffies;
@@ -4212,7 +4222,7 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped
/* If any of this stripe is beyond the end of the old
* array, then we need to zero those blocks
*/
- for (j=sh->disks; j--;) {
+ for (j = sh->disks; j--;) {
sector_t s;
if (j == sh->pd_idx)
continue;
@@ -4503,7 +4513,7 @@ static void raid5d(mddev_t *mddev)
if (!sh)
break;
spin_unlock_irq(&conf->device_lock);
-
+
handled++;
handle_stripe(sh);
release_stripe(sh);
@@ -4551,7 +4561,8 @@ raid5_set_cache_size(mddev_t *mddev, int size)
while (size > conf->max_nr_stripes) {
if (grow_one_stripe(conf))
conf->max_nr_stripes++;
- else break;
+ else
+ break;
}
return 0;
}
@@ -4919,7 +4930,7 @@ static int only_parity(int raid_disk, int algo, int raid_disks, int max_degraded
return 1;
break;
case ALGORITHM_PARITY_0_6:
- if (raid_disk == 0 ||
+ if (raid_disk == 0 ||
raid_disk == raid_disks - 1)
return 1;
break;
@@ -4988,7 +4999,7 @@ static int run(mddev_t *mddev)
* readonly mode so it can take control before
* allowing any writes. So just check for that.
*/
- if ((here_new * mddev->new_chunk_sectors !=
+ if ((here_new * mddev->new_chunk_sectors !=
here_old * mddev->chunk_sectors) ||
mddev->ro == 0) {
printk(KERN_ERR "md/raid:%s: in-place reshape must be started"
@@ -5051,7 +5062,7 @@ static int run(mddev_t *mddev)
if (mddev->major_version == 0 &&
mddev->minor_version > 90)
rdev->recovery_offset = reshape_offset;
-
+
if (rdev->recovery_offset < reshape_offset) {
/* We need to check old and new layout */
if (!only_parity(rdev->raid_disk,
@@ -5642,7 +5653,7 @@ static void raid5_quiesce(mddev_t *mddev, int state)
{
raid5_conf_t *conf = mddev->private;
- switch(state) {
+ switch (state) {
case 2: /* resume for a suspend */
wake_up(&conf->wait_for_overlap);
break;
@@ -5911,8 +5922,7 @@ static void *raid6_takeover(mddev_t *mddev)
}
-static struct mdk_personality raid6_personality =
-{
+static struct mdk_personality raid6_personality = {
.name = "raid6",
.level = 6,
.owner = THIS_MODULE,
@@ -5933,8 +5943,7 @@ static struct mdk_personality raid6_personality =
.quiesce = raid5_quiesce,
.takeover = raid6_takeover,
};
-static struct mdk_personality raid5_personality =
-{
+static struct mdk_personality raid5_personality = {
.name = "raid5",
.level = 5,
.owner = THIS_MODULE,
@@ -5956,8 +5965,7 @@ static struct mdk_personality raid5_personality =
.takeover = raid5_takeover,
};
-static struct mdk_personality raid4_personality =
-{
+static struct mdk_personality raid4_personality = {
.name = "raid4",
.level = 4,
.owner = THIS_MODULE,
--
1.7.4.1
--
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