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| author |  David Sterba <dsterba@suse.com>
| 2022-02-01 15:42:07 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com>
| 2022-03-14 13:13:49 +0100 |
| commit | a55e65b80e318e8917faa781df9955549c6cdaff (patch) | |
| tree | 5ea5614ade87650c895b1308f9c69cd3e59fad32 /fs/btrfs/compression.h | |
| parent | btrfs: zoned: allow DUP on meta-data block groups (diff) | |
| download | linux-a55e65b80e318e8917faa781df9955549c6cdaff.tar.gz linux-a55e65b80e318e8917faa781df9955549c6cdaff.tar.bz2 linux-a55e65b80e318e8917faa781df9955549c6cdaff.zip | |
btrfs: replace BUILD_BUG_ON by static_assert
The static_assert introduced in 6bab69c65013 ("build_bug.h: add wrapper
for _Static_assert") has been supported by compilers for a long time
(gcc 4.6, clang 3.0) and can be used in header files. We don't need to
put BUILD_BUG_ON to random functions but rather keep it next to the
definition.
The exception here is the UAPI header btrfs_tree.h that could be
potentially included by userspace code and the static assert is not
defined (nor used in any other header).
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.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, 2 insertions, 0 deletions
diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h index 56eef0821e3e..7dbd14caab01 100644 --- a/fs/btrfs/compression.h +++ b/fs/btrfs/compression.h @@ -22,6 +22,8 @@ struct btrfs_inode; /* Maximum length of compressed data stored on disk */ #define BTRFS_MAX_COMPRESSED (SZ_128K) +static_assert((BTRFS_MAX_COMPRESSED % PAGE_SIZE) == 0); + /* Maximum size of data before compression */ #define BTRFS_MAX_UNCOMPRESSED (SZ_128K) |