tree d291385160b694f2f3e0834fee154122891fe4a6
parent 8c9cb71491e7fd3ebee90d9799c9ca5b769bd0f4
author Trond Myklebust <trondmy@gmail.com> 1578342314 -0500
committer Anna Schumaker <Anna.Schumaker@Netapp.com> 1579103673 -0500

NFS: Fix nfs_direct_write_reschedule_io()

The 'hdr->good_bytes' is defined as the number of bytes we expect to
read or write starting at offset hdr->io_start. In the case of a partial
read/write we may end up adjusting hdr->args.offset and hdr->args.count
to skip I/O for data that was already read/written, and so we must ensure
the calculation takes that into account.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>