[PATCH] dm: stripe width fix

dm-stripe.c: The stripe width must be at least the page size.

[PATCH] dm: stripe width fix
dm-stripe.c: The stripe width must be at least the page size.
ef01bd3f · Andrew Morton · Linus Torvalds · c0ffbd19 · ef01bd3f
Commit ef01bd3f authored Mar 11, 2004 by Andrew Morton Committed by Linus Torvalds Mar 11, 2004
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drivers/md/dm-stripe.c drivers/md/dm-stripe.c +2 -1

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--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -97,7 +97,8 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	/*
 	 * chunk_size is a power of two
 	 */
-	if (!chunk_size || (chunk_size & (chunk_size - 1))) {
+	if (!chunk_size || (chunk_size & (chunk_size - 1)) ||
+	    (chunk_size < (PAGE_SIZE >> SECTOR_SHIFT))) {
 		ti->error = "dm-stripe: Invalid chunk size";
 		return -EINVAL;
 	}