update_block_csum() in btrfs-sb-mod.c is always called with the 'is_sb'
argument set to 1.
Get rid of the special case for is_sb == 0.
Signed-off-by: Johannes Thumshirn <jthumshirn@xxxxxxx>
Reviewed-by: Nikolay Borisov <nborisov@xxxxxxxx>
---
btrfs-sb-mod.c | 19 ++++++-------------
1 file changed, 6 insertions(+), 13 deletions(-)
diff --git a/btrfs-sb-mod.c b/btrfs-sb-mod.c
index d9630f187d0f..9e64b34d2b8f 100644
--- a/btrfs-sb-mod.c
+++ b/btrfs-sb-mod.c
@@ -46,24 +46,17 @@ static int check_csum_superblock(void *sb)
return !memcmp(sb, &result, csum_size);
}
-static void update_block_csum(void *block, int is_sb)
+static void update_block_csum(void *block)
{
u8 result[csum_size];
struct btrfs_header *hdr;
u32 crc = ~(u32)0;
u16 csum_type = btrfs_super_csum_type(block);
- if (is_sb) {
- crc = btrfs_csum_data(csum_type,
- (char *)block + BTRFS_CSUM_SIZE,
- (u8 *)&crc,
- BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE);
- } else {
- crc = btrfs_csum_data(csum_type,
- (char *)block + BTRFS_CSUM_SIZE,
- (u8 *)&crc,
- BLOCKSIZE - BTRFS_CSUM_SIZE);
- }
+ crc = btrfs_csum_data(csum_type, (char *)block + BTRFS_CSUM_SIZE,
+ (u8 *)&crc,
+ BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE);
+
btrfs_csum_final(csum_type, crc, result);
memset(block, 0, BTRFS_CSUM_SIZE);
hdr = (struct btrfs_header *)block;
@@ -354,7 +347,7 @@ int main(int argc, char **argv) {
if (changed) {
printf("Update csum\n");
- update_block_csum(buf, 1);
+ update_block_csum(buf);
ret = pwrite(fd, buf, BLOCKSIZE, off);
if (ret <= 0) {
printf("pwrite error %d at offset %llu\n",
--
2.16.4
