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[dm-devel] [Patch] dm-log.c: Use ext2_find_next_zero_bit()



Hi,

This patch will replace the find_next_zero_bit function with the
appropriate ext2 counterpart. Without this on 64 bit BE machines the
mirror target will try to recover regions beyond the end of device.

Regards,
Stefan

From: Stefan Bader <shbader de ibm com>

This is an addition to the endian fixes that introduce ext2_* versions
of the set and clear bit functions. The find_next_zero_bit also has to
be the ext2 one. Otherwise the mirror target tries to recover non-existent
regions beyond the end of device.

Signed-Off-By: Stefan Bader <shbader de ibm com>

diff -Nurp linux-2.6.15/drivers/md/dm-log.c linux-2.6.15-fix/drivers/md/dm-log.c
--- linux-2.6.15/drivers/md/dm-log.c	2006-02-01 16:43:32.707368696 +0100
+++ linux-2.6.15-fix/drivers/md/dm-log.c	2006-02-01 16:48:40.344639085 +0100
@@ -545,7 +545,8 @@ static int core_get_resync_work(struct d
 		return 0;
 
 	do {
-		*region = find_next_zero_bit((unsigned long *) lc->sync_bits,
+		*region = ext2_find_next_zero_bit(
+					     (unsigned long *) lc->sync_bits,
 					     lc->region_count,
 					     lc->sync_search);
 		lc->sync_search = *region + 1;


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