diff options
| -rw-r--r-- | fs/ceph/addr.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 29be367905a1..5a5751156f8b 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -407,6 +407,15 @@ static void ceph_netfs_issue_read(struct netfs_io_subrequest *subreq) struct page **pages; size_t page_off; + /* + * FIXME: io_iter.count needs to be corrected to aligned + * length. Otherwise, iov_iter_get_pages_alloc2() operates + * with the initial unaligned length value. As a result, + * ceph_msg_data_cursor_init() triggers BUG_ON() in the case + * if msg->sparse_read_total > msg->data_length. + */ + subreq->io_iter.count = len; + err = iov_iter_get_pages_alloc2(&subreq->io_iter, &pages, len, &page_off); if (err < 0) { doutc(cl, "%llx.%llx failed to allocate pages, %d\n", |