diff options
| author | Angelo Bulfone <boomshroom@users.noreply.github.com> | 2025-08-21 21:22:08 -0700 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2025-08-27 18:47:54 -0400 |
| commit | 4b97a99fa263096297816f64e45cac85d4fa8011 (patch) | |
| tree | bda728fc64bd118bddb44ca704c11be093db177f /c_src | |
| parent | 9d90c968b1ee481b0f10b1fa64565f73046eabbc (diff) | |
Allow block sizes smaller than backing medium
Diffstat (limited to 'c_src')
| -rw-r--r-- | c_src/libbcachefs.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/c_src/libbcachefs.c b/c_src/libbcachefs.c index a7fc572a..ed84be1b 100644 --- a/c_src/libbcachefs.c +++ b/c_src/libbcachefs.c @@ -201,18 +201,20 @@ struct bch_sb *bch2_format(struct bch_opt_strs fs_opt_strs, dev_opts_list devs) { struct bch_sb_handle sb = { NULL }; - unsigned max_dev_block_size = 0; - - darray_for_each(devs, i) - max_dev_block_size = max(max_dev_block_size, get_blocksize(i->bdev->bd_fd)); /* calculate block size: */ - if (!opt_defined(fs_opts, block_size)) + if (!opt_defined(fs_opts, block_size)) { + unsigned max_dev_block_size = 0; + + darray_for_each(devs, i) + max_dev_block_size = max(max_dev_block_size, get_blocksize(i->bdev->bd_fd)); + opt_set(fs_opts, block_size, max_dev_block_size); + } - if (fs_opts.block_size < max_dev_block_size) - die("blocksize too small: %u, must be greater than device blocksize %u", - fs_opts.block_size, max_dev_block_size); + if (fs_opts.block_size < 512) + die("blocksize too small: %u, must be greater than one sector (512 bytes)", + fs_opts.block_size); /* get device size, if it wasn't specified: */ darray_for_each(devs, i) |