diff options
| author | Eric Biggers <ebiggers@google.com> | 2020-04-30 23:51:59 -0700 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-05-25 11:25:27 +0200 |
| commit | fd08001f17c7f0a5b19bf4026bbaace19d8fbdb6 (patch) | |
| tree | fd5f401d3bfec680a75e5c2d59fd4e124a603316 /fs/btrfs/compression.c | |
| parent | 1ed802c972c6c676412e34d168e313a17c3d931e (diff) | |
| download | linux-stable-fd08001f17c7f0a5b19bf4026bbaace19d8fbdb6.tar.gz linux-stable-fd08001f17c7f0a5b19bf4026bbaace19d8fbdb6.tar.bz2 linux-stable-fd08001f17c7f0a5b19bf4026bbaace19d8fbdb6.zip | |
btrfs: use crypto_shash_digest() instead of open coding
Use crypto_shash_digest() instead of crypto_shash_init() +
crypto_shash_update() + crypto_shash_final(). This is more efficient.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/compression.c')
| -rw-r--r-- | fs/btrfs/compression.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 9ab610cc9114..1b624f9ef97d 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -194,11 +194,9 @@ static int check_compressed_csum(struct btrfs_inode *inode, for (i = 0; i < cb->nr_pages; i++) { page = cb->compressed_pages[i]; - crypto_shash_init(shash); kaddr = kmap_atomic(page); - crypto_shash_update(shash, kaddr, PAGE_SIZE); + crypto_shash_digest(shash, kaddr, PAGE_SIZE, csum); kunmap_atomic(kaddr); - crypto_shash_final(shash, (u8 *)&csum); if (memcmp(&csum, cb_sum, csum_size)) { btrfs_print_data_csum_error(inode, disk_start, |