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| author | Johannes Thumshirn <jthumshirn@suse.de> | 2019-05-22 10:19:02 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2019-07-01 13:35:01 +0200 |
| commit | 10fe6ca80d9d25eca9fd6d98eccf6c795532fe96 (patch) | |
| tree | ed36a8a59ff0e86913f9b9492d5a743e769f3404 /fs/btrfs/compression.h | |
| parent | 1e25a2e3ca0dab0ed1030570e95d98af47113eae (diff) | |
| download | lwn-10fe6ca80d9d25eca9fd6d98eccf6c795532fe96.tar.gz lwn-10fe6ca80d9d25eca9fd6d98eccf6c795532fe96.zip | |
btrfs: don't assume compressed_bio sums to be 4 bytes
BTRFS has the implicit assumption that a checksum in compressed_bio is 4
bytes. While this is true for CRC32C, it is not for any other checksum.
Change the data type to be a byte array and adjust loop index calculation
accordingly.
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/btrfs/compression.h')
| -rw-r--r-- | fs/btrfs/compression.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h index 9976fe0f7526..191e5f4e3523 100644 --- a/fs/btrfs/compression.h +++ b/fs/btrfs/compression.h @@ -61,7 +61,7 @@ struct compressed_bio { * the start of a variable length array of checksums only * used by reads */ - u32 sums; + u8 sums[]; }; static inline unsigned int btrfs_compress_type(unsigned int type_level) |