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authorNeilBrown <neilb@suse.de>2006-06-26 03:27:36 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 12:58:36 -0400
commit8932c2e0dcae52e73430878fd8a7a7800176eada (patch)
tree3b734ccaa0fb210f1fd76ff9bb6fb9700d1c4095 /drivers/md/raid5.c
parentc70810b327a247d12805554d0aa4605e257effb8 (diff)
[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/raid5.c')
-rw-r--r--drivers/md/raid5.c4
1 files changed, 2 insertions, 2 deletions
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)
2382 * 2 * (n-1) * chunksize where 'n' is the number of raid devices 2382 * 2 * (n-1) * chunksize where 'n' is the number of raid devices
2383 */ 2383 */
2384 { 2384 {
2385 int stripe = (mddev->raid_disks-1) * mddev->chunk_size 2385 int stripe = (mddev->raid_disks-1) *
2386 / PAGE_SIZE; 2386 (mddev->chunk_size / PAGE_SIZE);
2387 if (mddev->queue->backing_dev_info.ra_pages < 2 * stripe) 2387 if (mddev->queue->backing_dev_info.ra_pages < 2 * stripe)
2388 mddev->queue->backing_dev_info.ra_pages = 2 * stripe; 2388 mddev->queue->backing_dev_info.ra_pages = 2 * stripe;
2389 } 2389 }