[PATCH] dm mirror log: bitset_size fix

Fix the 'sizeof' in the region log bitmap size calculation: it's uint32_t, not unsigned long - this breaks on some archs. Signed-off-by: Alasdair G Kergon <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
pop-os · Jun 26, 2006 · 29121bd · 29121bd
1 parent b7cca19
commit 29121bd
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c
@@ -295,10 +295,10 @@ static int create_log_context(struct dirty_log *log, struct dm_target *ti,
 	 * Work out how many "unsigned long"s we need to hold the bitset.
 	 */
 	bitset_size = dm_round_up(region_count,
-				  sizeof(unsigned long) << BYTE_SHIFT);
+				  sizeof(*lc->clean_bits) << BYTE_SHIFT);
 	bitset_size >>= BYTE_SHIFT;
 
-	lc->bitset_uint32_count = bitset_size / 4;
+	lc->bitset_uint32_count = bitset_size / sizeof(*lc->clean_bits);
 
 	/*
 	 * Disk log?