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-rw-r--r--fs/btrfs/check-integrity.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index b0c8094528d1..81a9731959a9 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -83,7 +83,7 @@
#include <linux/blkdev.h>
#include <linux/mm.h>
#include <linux/string.h>
-#include <linux/crc32c.h>
+#include <crypto/hash.h>
#include "ctree.h"
#include "disk-io.h"
#include "transaction.h"
@@ -1710,9 +1710,9 @@ static int btrfsic_test_for_metadata(struct btrfsic_state *state,
char **datav, unsigned int num_pages)
{
struct btrfs_fs_info *fs_info = state->fs_info;
+ SHASH_DESC_ON_STACK(shash, fs_info->csum_shash);
struct btrfs_header *h;
u8 csum[BTRFS_CSUM_SIZE];
- u32 crc = ~(u32)0;
unsigned int i;
if (num_pages * PAGE_SIZE < state->metablock_size)
@@ -1723,14 +1723,17 @@ static int btrfsic_test_for_metadata(struct btrfsic_state *state,
if (memcmp(h->fsid, fs_info->fs_devices->fsid, BTRFS_FSID_SIZE))
return 1;
+ shash->tfm = fs_info->csum_shash;
+ crypto_shash_init(shash);
+
for (i = 0; i < num_pages; i++) {
u8 *data = i ? datav[i] : (datav[i] + BTRFS_CSUM_SIZE);
size_t sublen = i ? PAGE_SIZE :
(PAGE_SIZE - BTRFS_CSUM_SIZE);
- crc = crc32c(crc, data, sublen);
+ crypto_shash_update(shash, data, sublen);
}
- btrfs_csum_final(crc, csum);
+ crypto_shash_final(shash, csum);
if (memcmp(csum, h->csum, state->csum_size))
return 1;