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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/ioctl.c | |
| parent | btrfs: zoned: allow DUP on meta-data block groups (diff) | |
| download | linux-dev-a55e65b80e318e8917faa781df9955549c6cdaff.tar.xz linux-dev-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/ioctl.c')
| -rw-r--r-- | fs/btrfs/ioctl.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 8b2538b7027d..413e2e72b4e2 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1527,6 +1527,7 @@ next: } #define CLUSTER_SIZE (SZ_256K) +static_assert(IS_ALIGNED(CLUSTER_SIZE, PAGE_SIZE)); /* * Defrag one contiguous target range. @@ -1672,7 +1673,6 @@ static int defrag_one_cluster(struct btrfs_inode *inode, LIST_HEAD(target_list); int ret; - BUILD_BUG_ON(!IS_ALIGNED(CLUSTER_SIZE, PAGE_SIZE)); ret = defrag_collect_targets(inode, start, len, extent_thresh, newer_than, do_compress, false, &target_list, NULL); @@ -1815,9 +1815,6 @@ int btrfs_defrag_file(struct inode *inode, struct file_ra_state *ra, u64 last_scanned = cur; u64 cluster_end; - /* The cluster size 256K should always be page aligned */ - BUILD_BUG_ON(!IS_ALIGNED(CLUSTER_SIZE, PAGE_SIZE)); - if (btrfs_defrag_cancelled(fs_info)) { ret = -EAGAIN; break; |