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Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 9cc14ab35297..70fc4e7cc5a0 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2029,14 +2029,10 @@ static int btrfs_init_csum_hash(struct btrfs_fs_info *fs_info, u16 csum_type)
fs_info->csum_shash = csum_shash;
- /*
- * Check if the checksum implementation is a fast accelerated one.
- * As-is this is a bit of a hack and should be replaced once the csum
- * implementations provide that information themselves.
- */
+ /* Check if the checksum implementation is a fast accelerated one. */
switch (csum_type) {
case BTRFS_CSUM_TYPE_CRC32:
- if (!strstr(crypto_shash_driver_name(csum_shash), "generic"))
+ if (crc32_optimizations() & CRC32C_OPTIMIZATION)
set_bit(BTRFS_FS_CSUM_IMPL_FAST, &fs_info->flags);
break;
case BTRFS_CSUM_TYPE_XXHASH: