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authorNeilBrown <neilb@suse.de>2006-06-26 00:27:36 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 09:58:36 -0700
commit8932c2e0dcae52e73430878fd8a7a7800176eada (patch)
tree3b734ccaa0fb210f1fd76ff9bb6fb9700d1c4095 /drivers/md
parent[PATCH] md: reformat code in raid1_end_write_request to avoid goto (diff)
downloadlinux-dev-8932c2e0dcae52e73430878fd8a7a7800176eada.tar.xz
linux-dev-8932c2e0dcae52e73430878fd8a7a7800176eada.zip
[PATCH] md: remove arbitrary limit on chunk size
The largest chunk size the code can support without substantial surgery is 2^30 bytes, so make that the limit instead of an arbitrary 4Meg. Some day, the 'chunksize' should change to a sector-shift instead of a byte-count. Then no limit would be needed. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/raid10.c2
-rw-r--r--drivers/md/raid5.c4
-rw-r--r--drivers/md/raid6main.c4
3 files changed, 5 insertions, 5 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 1440935414e6..affeaefd4033 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -2050,7 +2050,7 @@ static int run(mddev_t *mddev)
* maybe...
*/
{
- int stripe = conf->raid_disks * mddev->chunk_size / PAGE_SIZE;
+ int stripe = conf->raid_disks * (mddev->chunk_size / 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;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 31843604049c..122e64e557b1 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2382,8 +2382,8 @@ static int run(mddev_t *mddev)
* 2 * (n-1) * chunksize where 'n' is the number of raid devices
*/
{
- int stripe = (mddev->raid_disks-1) * mddev->chunk_size
- / PAGE_SIZE;
+ int stripe = (mddev->raid_disks-1) *
+ (mddev->chunk_size / PAGE_SIZE);
if (mddev->queue->backing_dev_info.ra_pages < 2 * stripe)
mddev->queue->backing_dev_info.ra_pages = 2 * stripe;
}
diff --git a/drivers/md/raid6main.c b/drivers/md/raid6main.c
index bc69355e0100..e53d2d96ea3a 100644
--- a/drivers/md/raid6main.c
+++ b/drivers/md/raid6main.c
@@ -2135,8 +2135,8 @@ static int run(mddev_t *mddev)
* 2 * (n-2) * chunksize where 'n' is the number of raid devices
*/
{
- int stripe = (mddev->raid_disks-2) * mddev->chunk_size
- / PAGE_SIZE;
+ int stripe = (mddev->raid_disks-2) *
+ (mddev->chunk_size / PAGE_SIZE);
if (mddev->queue->backing_dev_info.ra_pages < 2 * stripe)
mddev->queue->backing_dev_info.ra_pages = 2 * stripe;
}