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| author | Johannes Thumshirn <jthumshirn@suse.de> | 2019-05-22 10:19:00 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2019-07-01 13:35:00 +0200 |
| commit | 4bb3c2e2b5bb0d57f7d11f2da829357c5ca628a4 (patch) | |
| tree | b700d3608c611db7ba987e16e7a48bd111f06f6c /fs | |
| parent | 65019df8c3b0efa363c30ca4dd69a1a370a3ebe8 (diff) | |
| download | linux-4bb3c2e2b5bb0d57f7d11f2da829357c5ca628a4.tar.gz linux-4bb3c2e2b5bb0d57f7d11f2da829357c5ca628a4.tar.bz2 linux-4bb3c2e2b5bb0d57f7d11f2da829357c5ca628a4.zip | |
btrfs: use btrfs_crc32c{,_final}() in for free space cache
The CRC checksum in the free space cache is not dependant on the super
block's csum_type field but always a CRC32C.
So use btrfs_crc32c() and btrfs_crc32c_final() instead of
btrfs_csum_data() and btrfs_csum_final() for computing these checksums.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index db53ac88e159..6814fa42eba3 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -465,9 +465,8 @@ static void io_ctl_set_crc(struct btrfs_io_ctl *io_ctl, int index) if (index == 0) offset = sizeof(u32) * io_ctl->num_pages; - crc = btrfs_csum_data(io_ctl->orig + offset, crc, - PAGE_SIZE - offset); - btrfs_csum_final(crc, (u8 *)&crc); + crc = btrfs_crc32c(crc, io_ctl->orig + offset, PAGE_SIZE - offset); + btrfs_crc32c_final(crc, (u8 *)&crc); io_ctl_unmap_page(io_ctl); tmp = page_address(io_ctl->pages[0]); tmp += index; @@ -493,9 +492,8 @@ static int io_ctl_check_crc(struct btrfs_io_ctl *io_ctl, int index) val = *tmp; io_ctl_map_page(io_ctl, 0); - crc = btrfs_csum_data(io_ctl->orig + offset, crc, - PAGE_SIZE - offset); - btrfs_csum_final(crc, (u8 *)&crc); + crc = btrfs_crc32c(crc, io_ctl->orig + offset, PAGE_SIZE - offset); + btrfs_crc32c_final(crc, (u8 *)&crc); if (val != crc) { btrfs_err_rl(io_ctl->fs_info, "csum mismatch on free space cache"); |