From 8f069b41bce79b0c4b6076acd0f3d15df0a232ed Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Fri, 27 Jul 2012 15:08:01 +0100
Subject: [PATCH] dm stripe: remove minimum stripe size
There is no technical limitation in device mapper that would prevent the
dm-stripe target from using a stripe size smaller than page size.
This patch removes the limit and makes stripe volumes portable across
architectures with different page size.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
---
drivers/md/dm-stripe.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index 9690daa11c835..6a20e9ea0bfb0 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -109,8 +109,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
return -EINVAL;
}
- if (kstrtouint(argv[1], 10, &chunk_size) ||
- (chunk_size < (PAGE_SIZE >> SECTOR_SHIFT))) {
+ if (kstrtouint(argv[1], 10, &chunk_size) || !chunk_size) {
ti->error = "Invalid chunk_size";
return -EINVAL;
}
--
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