summaryrefslogtreecommitdiffstats
path: root/drivers/md
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-log-userspace-base.c1
-rw-r--r--drivers/md/dm-log-userspace-transfer.c1
-rw-r--r--drivers/md/dm-region-hash.c1
-rw-r--r--drivers/md/dm-service-time.c2
-rw-r--r--drivers/md/dm-target.c1
-rw-r--r--drivers/md/faulty.c1
-rw-r--r--drivers/md/linear.c13
-rw-r--r--drivers/md/md.c1
-rw-r--r--drivers/md/multipath.c21
-rw-r--r--drivers/md/raid0.c14
-rw-r--r--drivers/md/raid1.c29
-rw-r--r--drivers/md/raid10.c29
-rw-r--r--drivers/md/raid5.c20
-rw-r--r--drivers/md/raid6algos.c1
14 files changed, 81 insertions, 54 deletions
diff --git a/drivers/md/dm-log-userspace-base.c b/drivers/md/dm-log-userspace-base.c
index 7ac2c1450d10..1ed0094f064b 100644
--- a/drivers/md/dm-log-userspace-base.c
+++ b/drivers/md/dm-log-userspace-base.c
@@ -5,6 +5,7 @@
*/
#include <linux/bio.h>
+#include <linux/slab.h>
#include <linux/dm-dirty-log.h>
#include <linux/device-mapper.h>
#include <linux/dm-log-userspace.h>
diff --git a/drivers/md/dm-log-userspace-transfer.c b/drivers/md/dm-log-userspace-transfer.c
index f1c8cae70b4b..075cbcf8a9f5 100644
--- a/drivers/md/dm-log-userspace-transfer.c
+++ b/drivers/md/dm-log-userspace-transfer.c
@@ -6,6 +6,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <net/sock.h>
#include <linux/workqueue.h>
#include <linux/connector.h>
diff --git a/drivers/md/dm-region-hash.c b/drivers/md/dm-region-hash.c
index 168bd38f5006..bd5c58b28868 100644
--- a/drivers/md/dm-region-hash.c
+++ b/drivers/md/dm-region-hash.c
@@ -11,6 +11,7 @@
#include <linux/ctype.h>
#include <linux/init.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/vmalloc.h>
#include "dm.h"
diff --git a/drivers/md/dm-service-time.c b/drivers/md/dm-service-time.c
index cfa668f46c40..9c6c2e47ad62 100644
--- a/drivers/md/dm-service-time.c
+++ b/drivers/md/dm-service-time.c
@@ -11,6 +11,8 @@
#include "dm.h"
#include "dm-path-selector.h"
+#include <linux/slab.h>
+
#define DM_MSG_PREFIX "multipath service-time"
#define ST_MIN_IO 1
#define ST_MAX_RELATIVE_THROUGHPUT 100
diff --git a/drivers/md/dm-target.c b/drivers/md/dm-target.c
index 04feccf2a997..11dea11dc0b6 100644
--- a/drivers/md/dm-target.c
+++ b/drivers/md/dm-target.c
@@ -10,7 +10,6 @@
#include <linux/init.h>
#include <linux/kmod.h>
#include <linux/bio.h>
-#include <linux/slab.h>
#define DM_MSG_PREFIX "target"
diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c
index 713acd02ab39..8e3850b98cca 100644
--- a/drivers/md/faulty.c
+++ b/drivers/md/faulty.c
@@ -64,6 +64,7 @@
#define MaxFault 50
#include <linux/blkdev.h>
#include <linux/raid/md_u.h>
+#include <linux/slab.h>
#include "md.h"
#include <linux/seq_file.h>
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index af2d39d603c7..09437e958235 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -19,6 +19,7 @@
#include <linux/blkdev.h>
#include <linux/raid/md_u.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include "md.h"
#include "linear.h"
@@ -172,12 +173,14 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
disk_stack_limits(mddev->gendisk, rdev->bdev,
rdev->data_offset << 9);
/* as we don't honour merge_bvec_fn, we must never risk
- * violating it, so limit ->max_sector to one PAGE, as
- * a one page request is never in violation.
+ * violating it, so limit max_segments to 1 lying within
+ * a single page.
*/
- if (rdev->bdev->bd_disk->queue->merge_bvec_fn &&
- queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
+ if (rdev->bdev->bd_disk->queue->merge_bvec_fn) {
+ blk_queue_max_segments(mddev->queue, 1);
+ blk_queue_segment_boundary(mddev->queue,
+ PAGE_CACHE_SIZE - 1);
+ }
conf->array_sectors += rdev->sectors;
cnt++;
diff --git a/drivers/md/md.c b/drivers/md/md.c
index fdc1890b6ac5..9712b2e97be4 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -49,6 +49,7 @@
#include <linux/delay.h>
#include <linux/raid/md_p.h>
#include <linux/raid/md_u.h>
+#include <linux/slab.h>
#include "md.h"
#include "bitmap.h"
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 4b323f45ad74..789bf535d29c 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -22,6 +22,7 @@
#include <linux/blkdev.h>
#include <linux/raid/md_u.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include "md.h"
#include "multipath.h"
@@ -301,14 +302,16 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
rdev->data_offset << 9);
/* as we don't honour merge_bvec_fn, we must never risk
- * violating it, so limit ->max_sector to one PAGE, as
- * a one page request is never in violation.
+ * violating it, so limit ->max_segments to one, lying
+ * within a single page.
* (Note: it is very unlikely that a device with
* merge_bvec_fn will be involved in multipath.)
*/
- if (q->merge_bvec_fn &&
- queue_max_sectors(q) > (PAGE_SIZE>>9))
- blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
+ if (q->merge_bvec_fn) {
+ blk_queue_max_segments(mddev->queue, 1);
+ blk_queue_segment_boundary(mddev->queue,
+ PAGE_CACHE_SIZE - 1);
+ }
conf->working_disks++;
mddev->degraded--;
@@ -476,9 +479,11 @@ static int multipath_run (mddev_t *mddev)
/* as we don't honour merge_bvec_fn, we must never risk
* violating it, not that we ever expect a device with
* a merge_bvec_fn to be involved in multipath */
- if (rdev->bdev->bd_disk->queue->merge_bvec_fn &&
- queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
+ if (rdev->bdev->bd_disk->queue->merge_bvec_fn) {
+ blk_queue_max_segments(mddev->queue, 1);
+ blk_queue_segment_boundary(mddev->queue,
+ PAGE_CACHE_SIZE - 1);
+ }
if (!test_bit(Faulty, &rdev->flags))
conf->working_disks++;
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index a1f7147b757f..c3bec024612e 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -20,6 +20,7 @@
#include <linux/blkdev.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include "md.h"
#include "raid0.h"
@@ -176,14 +177,15 @@ static int create_strip_zones(mddev_t *mddev)
disk_stack_limits(mddev->gendisk, rdev1->bdev,
rdev1->data_offset << 9);
/* as we don't honour merge_bvec_fn, we must never risk
- * violating it, so limit ->max_sector to one PAGE, as
- * a one page request is never in violation.
+ * violating it, so limit ->max_segments to 1, lying within
+ * a single page.
*/
- if (rdev1->bdev->bd_disk->queue->merge_bvec_fn &&
- queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
-
+ if (rdev1->bdev->bd_disk->queue->merge_bvec_fn) {
+ blk_queue_max_segments(mddev->queue, 1);
+ blk_queue_segment_boundary(mddev->queue,
+ PAGE_CACHE_SIZE - 1);
+ }
if (!smallest || (rdev1->sectors < smallest->sectors))
smallest = rdev1;
cnt++;
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 5a06122abd3b..e59b10e66edb 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -31,6 +31,7 @@
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/blkdev.h>
#include <linux/seq_file.h>
@@ -1152,13 +1153,17 @@ static int raid1_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
disk_stack_limits(mddev->gendisk, rdev->bdev,
rdev->data_offset << 9);
- /* as we don't honour merge_bvec_fn, we must never risk
- * violating it, so limit ->max_sector to one PAGE, as
- * a one page request is never in violation.
+ /* as we don't honour merge_bvec_fn, we must
+ * never risk violating it, so limit
+ * ->max_segments to one lying with a single
+ * page, as a one page request is never in
+ * violation.
*/
- if (rdev->bdev->bd_disk->queue->merge_bvec_fn &&
- queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
+ if (rdev->bdev->bd_disk->queue->merge_bvec_fn) {
+ blk_queue_max_segments(mddev->queue, 1);
+ blk_queue_segment_boundary(mddev->queue,
+ PAGE_CACHE_SIZE - 1);
+ }
p->head_position = 0;
rdev->raid_disk = mirror;
@@ -2098,12 +2103,14 @@ static int run(mddev_t *mddev)
disk_stack_limits(mddev->gendisk, rdev->bdev,
rdev->data_offset << 9);
/* as we don't honour merge_bvec_fn, we must never risk
- * violating it, so limit ->max_sector to one PAGE, as
- * a one page request is never in violation.
+ * violating it, so limit ->max_segments to 1 lying within
+ * a single page, as a one page request is never in violation.
*/
- if (rdev->bdev->bd_disk->queue->merge_bvec_fn &&
- queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
+ if (rdev->bdev->bd_disk->queue->merge_bvec_fn) {
+ blk_queue_max_segments(mddev->queue, 1);
+ blk_queue_segment_boundary(mddev->queue,
+ PAGE_CACHE_SIZE - 1);
+ }
}
mddev->degraded = 0;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 7584f9ab9bcf..e2766d8251a1 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -18,6 +18,7 @@
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/blkdev.h>
#include <linux/seq_file.h>
@@ -1155,13 +1156,17 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
disk_stack_limits(mddev->gendisk, rdev->bdev,
rdev->data_offset << 9);
- /* as we don't honour merge_bvec_fn, we must never risk
- * violating it, so limit ->max_sector to one PAGE, as
- * a one page request is never in violation.
+ /* as we don't honour merge_bvec_fn, we must
+ * never risk violating it, so limit
+ * ->max_segments to one lying with a single
+ * page, as a one page request is never in
+ * violation.
*/
- if (rdev->bdev->bd_disk->queue->merge_bvec_fn &&
- queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
+ if (rdev->bdev->bd_disk->queue->merge_bvec_fn) {
+ blk_queue_max_segments(mddev->queue, 1);
+ blk_queue_segment_boundary(mddev->queue,
+ PAGE_CACHE_SIZE - 1);
+ }
p->head_position = 0;
rdev->raid_disk = mirror;
@@ -2255,12 +2260,14 @@ static int run(mddev_t *mddev)
disk_stack_limits(mddev->gendisk, rdev->bdev,
rdev->data_offset << 9);
/* as we don't honour merge_bvec_fn, we must never risk
- * violating it, so limit ->max_sector to one PAGE, as
- * a one page request is never in violation.
+ * violating it, so limit max_segments to 1 lying
+ * within a single page.
*/
- if (rdev->bdev->bd_disk->queue->merge_bvec_fn &&
- queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9))
- blk_queue_max_hw_sectors(mddev->queue, PAGE_SIZE>>9);
+ if (rdev->bdev->bd_disk->queue->merge_bvec_fn) {
+ blk_queue_max_segments(mddev->queue, 1);
+ blk_queue_segment_boundary(mddev->queue,
+ PAGE_CACHE_SIZE - 1);
+ }
disk->head_position = 0;
}
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 70ffbd071b2e..20e48401910e 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -50,6 +50,7 @@
#include <linux/async.h>
#include <linux/seq_file.h>
#include <linux/cpu.h>
+#include <linux/slab.h>
#include "md.h"
#include "raid5.h"
#include "bitmap.h"
@@ -1649,8 +1650,8 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
int previous, int *dd_idx,
struct stripe_head *sh)
{
- long stripe;
- unsigned long chunk_number;
+ sector_t stripe;
+ sector_t chunk_number;
unsigned int chunk_offset;
int pd_idx, qd_idx;
int ddf_layout = 0;
@@ -1670,17 +1671,12 @@ static sector_t raid5_compute_sector(raid5_conf_t *conf, sector_t r_sector,
*/
chunk_offset = sector_div(r_sector, sectors_per_chunk);
chunk_number = r_sector;
- BUG_ON(r_sector != chunk_number);
/*
* Compute the stripe number
*/
- stripe = chunk_number / data_disks;
-
- /*
- * Compute the data disk and parity disk indexes inside the stripe
- */
- *dd_idx = chunk_number % data_disks;
+ stripe = chunk_number;
+ *dd_idx = sector_div(stripe, data_disks);
/*
* Select the parity disk based on the user selected algorithm.
@@ -1869,14 +1865,14 @@ static sector_t compute_blocknr(struct stripe_head *sh, int i, int previous)
: conf->algorithm;
sector_t stripe;
int chunk_offset;
- int chunk_number, dummy1, dd_idx = i;
+ sector_t chunk_number;
+ int dummy1, dd_idx = i;
sector_t r_sector;
struct stripe_head sh2;
chunk_offset = sector_div(new_sector, sectors_per_chunk);
stripe = new_sector;
- BUG_ON(new_sector != stripe);
if (i == sh->pd_idx)
return 0;
@@ -1969,7 +1965,7 @@ static sector_t compute_blocknr(struct stripe_head *sh, int i, int previous)
}
chunk_number = stripe * data_disks + i;
- r_sector = (sector_t)chunk_number * sectors_per_chunk + chunk_offset;
+ r_sector = chunk_number * sectors_per_chunk + chunk_offset;
check = raid5_compute_sector(conf, r_sector,
previous, &dummy1, &sh2);
diff --git a/drivers/md/raid6algos.c b/drivers/md/raid6algos.c
index bffc61bff5ab..1f8784bfd44d 100644
--- a/drivers/md/raid6algos.c
+++ b/drivers/md/raid6algos.c
@@ -17,6 +17,7 @@
*/
#include <linux/raid/pq.h>
+#include <linux/gfp.h>
#ifndef __KERNEL__
#include <sys/mman.h>
#include <stdio.h>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 22:22:25 +0100