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Commit ac84aba2 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
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[PATCH] md: Convert a number or "unsigned long"s to "sector_t"s 

From: NeilBrown <neilb@cse.unsw.edu.au>

This helps raid5 work on at least 1 very large array..

Thanks to Evan Felix <evan.felix@pnl.gov>
parent 454104ff
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Showing with 32 additions and 31 deletions
drivers/md/md.c
View file @ ac84aba2
......@@ -3178,13 +3178,14 @@ DECLARE_WAIT_QUEUE_HEAD(resync_wait);
static void md_do_sync(mddev_t *mddev)
{
mddev_t *mddev2;
unsigned int max_sectors, currspeed = 0,
j, window;
unsigned int currspeed = 0,
window;
sector_t max_sectors,j;
unsigned long mark[SYNC_MARKS];
unsigned long mark_cnt[SYNC_MARKS];
sector_t mark_cnt[SYNC_MARKS];
int last_mark,m;
struct list_head *tmp;
unsigned long last_check;
sector_t last_check;
/* just incase thread restarts... */
if (test_bit(MD_RECOVERY_DONE, &mddev->recovery))
......@@ -3253,8 +3254,8 @@ static void md_do_sync(mddev_t *mddev)
* Tune reconstruction:
*/
window = 32*(PAGE_SIZE/512);
printk(KERN_INFO "md: using %dk window, over a total of %d blocks.\n",
window/2,max_sectors/2);
printk(KERN_INFO "md: using %dk window, over a total of %Lu blocks.\n",
window/2,(unsigned long long) max_sectors/2);
atomic_set(&mddev->recovery_active, 0);
init_waitqueue_head(&mddev->recovery_wait);
......@@ -3322,7 +3323,7 @@ static void md_do_sync(mddev_t *mddev)
*/
cond_resched();
currspeed = (j-mddev->resync_mark_cnt)/2/((jiffies-mddev->resync_mark)/HZ +1) +1;
currspeed = ((unsigned long)(j-mddev->resync_mark_cnt))/2/((jiffies-mddev->resync_mark)/HZ +1) +1;
if (currspeed > sysctl_speed_limit_min) {
if ((currspeed > sysctl_speed_limit_max) ||
......
drivers/md/raid5.c
View file @ ac84aba2
......@@ -181,7 +181,7 @@ static int grow_buffers(struct stripe_head *sh, int num)
static void raid5_build_block (struct stripe_head *sh, int i);
static inline void init_stripe(struct stripe_head *sh, unsigned long sector, int pd_idx)
static inline void init_stripe(struct stripe_head *sh, sector_t sector, int pd_idx)
{
raid5_conf_t *conf = sh->raid_conf;
int disks = conf->raid_disks, i;
......@@ -218,25 +218,25 @@ static inline void init_stripe(struct stripe_head *sh, unsigned long sector, int
insert_hash(conf, sh);
}
static struct stripe_head *__find_stripe(raid5_conf_t *conf, unsigned long sector)
static struct stripe_head *__find_stripe(raid5_conf_t *conf, sector_t sector)
{
struct stripe_head *sh;
CHECK_DEVLOCK();
PRINTK("__find_stripe, sector %lu\n", sector);
PRINTK("__find_stripe, sector %llu\n", (unsigned long long)sector);
for (sh = stripe_hash(conf, sector); sh; sh = sh->hash_next)
if (sh->sector == sector)
return sh;
PRINTK("__stripe %lu not in cache\n", sector);
PRINTK("__stripe %llu not in cache\n", (unsigned long long)sector);
return NULL;
}
static struct stripe_head *get_active_stripe(raid5_conf_t *conf, unsigned long sector,
static struct stripe_head *get_active_stripe(raid5_conf_t *conf, sector_t sector,
int pd_idx, int noblock)
{
struct stripe_head *sh;
PRINTK("get_stripe, sector %lu\n", sector);
PRINTK("get_stripe, sector %llu\n", (unsigned long long)sector);
spin_lock_irq(&conf->device_lock);
......@@ -495,7 +495,7 @@ static void error(mddev_t *mddev, mdk_rdev_t *rdev)
* Input: a 'big' sector number,
* Output: index of the data and parity disk, and the sector # in them.
*/
static unsigned long raid5_compute_sector(sector_t r_sector, unsigned int raid_disks,
static sector_t raid5_compute_sector(sector_t r_sector, unsigned int raid_disks,
unsigned int data_disks, unsigned int * dd_idx,
unsigned int * pd_idx, raid5_conf_t *conf)
{
......@@ -556,7 +556,7 @@ static unsigned long raid5_compute_sector(sector_t r_sector, unsigned int raid_d
/*
* Finally, compute the new sector number
*/
new_sector = stripe * sectors_per_chunk + chunk_offset;
new_sector = (sector_t)stripe * sectors_per_chunk + chunk_offset;
return new_sector;
}
......@@ -567,7 +567,7 @@ static sector_t compute_blocknr(struct stripe_head *sh, int i)
int raid_disks = conf->raid_disks, data_disks = raid_disks - 1;
sector_t new_sector = sh->sector, check;
int sectors_per_chunk = conf->chunk_size >> 9;
long stripe;
sector_t stripe;
int chunk_offset;
int chunk_number, dummy1, dummy2, dd_idx = i;
sector_t r_sector;
......@@ -1388,7 +1388,7 @@ static int sync_request (mddev_t *mddev, sector_t sector_nr, int go_faster)
unsigned long stripe;
int chunk_offset;
int dd_idx, pd_idx;
unsigned long first_sector;
sector_t first_sector;
int raid_disks = conf->raid_disks;
int data_disks = raid_disks-1;
......@@ -1401,7 +1401,7 @@ static int sync_request (mddev_t *mddev, sector_t sector_nr, int go_faster)
stripe = x;
BUG_ON(x != stripe);
first_sector = raid5_compute_sector(stripe*data_disks*sectors_per_chunk
first_sector = raid5_compute_sector((sector_t)stripe*data_disks*sectors_per_chunk
+ chunk_offset, raid_disks, data_disks, &dd_idx, &pd_idx, conf);
sh = get_active_stripe(conf, sector_nr, pd_idx, 1);
if (sh == NULL) {
......
drivers/md/raid6main.c
View file @ ac84aba2
......@@ -200,7 +200,7 @@ static int grow_buffers(struct stripe_head *sh, int num)
static void raid6_build_block (struct stripe_head *sh, int i);
static inline void init_stripe(struct stripe_head *sh, unsigned long sector, int pd_idx)
static inline void init_stripe(struct stripe_head *sh, sector_t sector, int pd_idx)
{
raid6_conf_t *conf = sh->raid_conf;
int disks = conf->raid_disks, i;
......@@ -237,25 +237,25 @@ static inline void init_stripe(struct stripe_head *sh, unsigned long sector, int
insert_hash(conf, sh);
}
static struct stripe_head *__find_stripe(raid6_conf_t *conf, unsigned long sector)
static struct stripe_head *__find_stripe(raid6_conf_t *conf, sector_t sector)
{
struct stripe_head *sh;
CHECK_DEVLOCK();
PRINTK("__find_stripe, sector %lu\n", sector);
PRINTK("__find_stripe, sector %llu\n", (unsigned long long)sector);
for (sh = stripe_hash(conf, sector); sh; sh = sh->hash_next)
if (sh->sector == sector)
return sh;
PRINTK("__stripe %lu not in cache\n", sector);
PRINTK("__stripe %llu not in cache\n", (unsigned long long)sector);
return NULL;
}
static struct stripe_head *get_active_stripe(raid6_conf_t *conf, unsigned long sector,
static struct stripe_head *get_active_stripe(raid6_conf_t *conf, sector_t sector,
int pd_idx, int noblock)
{
struct stripe_head *sh;
PRINTK("get_stripe, sector %lu\n", sector);
PRINTK("get_stripe, sector %llu\n", (unsigned long long)sector);
spin_lock_irq(&conf->device_lock);
......@@ -516,7 +516,7 @@ static void error(mddev_t *mddev, mdk_rdev_t *rdev)
* Input: a 'big' sector number,
* Output: index of the data and parity disk, and the sector # in them.
*/
static unsigned long raid6_compute_sector(sector_t r_sector, unsigned int raid_disks,
static sector_t raid6_compute_sector(sector_t r_sector, unsigned int raid_disks,
unsigned int data_disks, unsigned int * dd_idx,
unsigned int * pd_idx, raid6_conf_t *conf)
{
......@@ -588,7 +588,7 @@ static unsigned long raid6_compute_sector(sector_t r_sector, unsigned int raid_d
/*
* Finally, compute the new sector number
*/
new_sector = stripe * sectors_per_chunk + chunk_offset;
new_sector = (sector_t) stripe * sectors_per_chunk + chunk_offset;
return new_sector;
}
......@@ -599,7 +599,7 @@ static sector_t compute_blocknr(struct stripe_head *sh, int i)
int raid_disks = conf->raid_disks, data_disks = raid_disks - 2;
sector_t new_sector = sh->sector, check;
int sectors_per_chunk = conf->chunk_size >> 9;
long stripe;
sector_t stripe;
int chunk_offset;
int chunk_number, dummy1, dummy2, dd_idx = i;
sector_t r_sector;
......@@ -1550,7 +1550,7 @@ static int sync_request (mddev_t *mddev, sector_t sector_nr, int go_faster)
unsigned long stripe;
int chunk_offset;
int dd_idx, pd_idx;
unsigned long first_sector;
sector_t first_sector;
int raid_disks = conf->raid_disks;
int data_disks = raid_disks - 2;
......@@ -1563,7 +1563,7 @@ static int sync_request (mddev_t *mddev, sector_t sector_nr, int go_faster)
stripe = x;
BUG_ON(x != stripe);
first_sector = raid6_compute_sector(stripe*data_disks*sectors_per_chunk
first_sector = raid6_compute_sector((sector_t)stripe*data_disks*sectors_per_chunk
+ chunk_offset, raid_disks, data_disks, &dd_idx, &pd_idx, conf);
sh = get_active_stripe(conf, sector_nr, pd_idx, 1);
if (sh == NULL) {
......
include/linux/raid/md_k.h
View file @ ac84aba2
......@@ -212,9 +212,9 @@ struct mddev_s
struct mdk_thread_s *thread; /* management thread */
struct mdk_thread_s *sync_thread; /* doing resync or reconstruct */
unsigned long curr_resync; /* blocks scheduled */
sector_t curr_resync; /* blocks scheduled */
unsigned long resync_mark; /* a recent timestamp */
unsigned long resync_mark_cnt;/* blocks written at resync_mark */
sector_t resync_mark_cnt;/* blocks written at resync_mark */
/* recovery/resync flags
* NEEDED: we might need to start a resync/recover
......
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