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btrfs-progs: use proper unaligned helper in btrfs_csum_final
author
David Sterba
<dsterba@suse.com>
Thu, 28 Jul 2016 17:36:50 +0000
(19:36 +0200)
committer
David Sterba
<dsterba@suse.com>
Fri, 29 Jul 2016 13:04:54 +0000
(15:04 +0200)
This will not cause unaligned access as the checksum is at the beginning
of btrfs_header and thus aligned to a page, but for clarity use the
helper.
Signed-off-by: David Sterba <dsterba@suse.com>
disk-io.c
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diff --git
a/disk-io.c
b/disk-io.c
index
fbce506
..
3647ecc
100644
(file)
--- a/
disk-io.c
+++ b/
disk-io.c
@@
-125,7
+125,7
@@
u32 btrfs_csum_data(struct btrfs_root *root, char *data, u32 seed, size_t len)
void btrfs_csum_final(u32 crc, char *result)
{
-
*(__le32 *)result = ~cpu_to_le32(crc
);
+
put_unaligned_le32(~crc, result
);
}
static int __csum_tree_block_size(struct extent_buffer *buf, u16 csum_size,