diff options
| -rw-r--r-- | fs/btrfs/bio.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/fs/btrfs/bio.c b/fs/btrfs/bio.c index 909b208f9ef3..db2deaa4aad4 100644 --- a/fs/btrfs/bio.c +++ b/fs/btrfs/bio.c @@ -779,11 +779,38 @@ end_bbio: return true; } +static void assert_bbio_alignment(struct btrfs_bio *bbio) +{ +#ifdef CONFIG_BTRFS_ASSERT + struct btrfs_fs_info *fs_info = bbio->fs_info; + struct bio_vec bvec; + struct bvec_iter iter; + const u32 blocksize = fs_info->sectorsize; + + /* Metadata has no extra bs > ps alignment requirement. */ + if (!is_data_bbio(bbio)) + return; + + bio_for_each_bvec(bvec, &bbio->bio, iter) + ASSERT(IS_ALIGNED(bvec.bv_offset, blocksize) && + IS_ALIGNED(bvec.bv_len, blocksize), + "root=%llu inode=%llu logical=%llu length=%u index=%u bv_offset=%u bv_len=%u", + btrfs_root_id(bbio->inode->root), + btrfs_ino(bbio->inode), + bbio->bio.bi_iter.bi_sector << SECTOR_SHIFT, + bbio->bio.bi_iter.bi_size, iter.bi_idx, + bvec.bv_offset, + bvec.bv_len); +#endif +} + void btrfs_submit_bbio(struct btrfs_bio *bbio, int mirror_num) { /* If bbio->inode is not populated, its file_offset must be 0. */ ASSERT(bbio->inode || bbio->file_offset == 0); + assert_bbio_alignment(bbio); + while (!btrfs_submit_chunk(bbio, mirror_num)) ; } |