diff options
Diffstat (limited to 'fs/bcachefs/fs-io-direct.c')
| -rw-r--r-- | fs/bcachefs/fs-io-direct.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/bcachefs/fs-io-direct.c b/fs/bcachefs/fs-io-direct.c index 84e20c3ada..33cb6da3a5 100644 --- a/fs/bcachefs/fs-io-direct.c +++ b/fs/bcachefs/fs-io-direct.c @@ -77,7 +77,8 @@ static int bch2_direct_IO_read(struct kiocb *req, struct iov_iter *iter) bch2_inode_opts_get(&opts, c, &inode->ei_inode); - if ((offset|iter->count) & (block_bytes(c) - 1)) + /* bios must be 512 byte aligned: */ + if ((offset|iter->count) & (SECTOR_SIZE - 1)) return -EINVAL; ret = min_t(loff_t, iter->count, @@ -87,6 +88,8 @@ static int bch2_direct_IO_read(struct kiocb *req, struct iov_iter *iter) return ret; shorten = iov_iter_count(iter) - round_up(ret, block_bytes(c)); + if (shorten >= iter->count) + shorten = 0; iter->count -= shorten; bio = bio_alloc_bioset(NULL, |