diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-10-09 16:34:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-10-09 16:34:45 -0700 |
| commit | 38aa0a59a6669af702c523e1d525b24ff5fd471b (patch) | |
| tree | c01d24969abb4a094ee280bb54159ca7efcb5747 | |
| parent | 5163ac76370dc5298219c92a4befeb9e23de6f66 (diff) | |
| parent | c91aed9896946721bb30705ea2904edb3725dd61 (diff) | |
Merge tag 'nfsd-4.3-1' of git://linux-nfs.org/~bfields/linux
Pull nfsd bugfix from Bruce Fields:
"Just one RDMA bugfix"
* tag 'nfsd-4.3-1' of git://linux-nfs.org/~bfields/linux:
svcrdma: handle rdma read with a non-zero initial page offset
| -rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_recvfrom.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c index cb5174284074..5f6ca47092b0 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c +++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c @@ -136,7 +136,8 @@ int rdma_read_chunk_lcl(struct svcxprt_rdma *xprt, ctxt->direction = DMA_FROM_DEVICE; ctxt->read_hdr = head; pages_needed = min_t(int, pages_needed, xprt->sc_max_sge_rd); - read = min_t(int, pages_needed << PAGE_SHIFT, rs_length); + read = min_t(int, (pages_needed << PAGE_SHIFT) - *page_offset, + rs_length); for (pno = 0; pno < pages_needed; pno++) { int len = min_t(int, rs_length, PAGE_SIZE - pg_off); @@ -235,7 +236,8 @@ int rdma_read_chunk_frmr(struct svcxprt_rdma *xprt, ctxt->direction = DMA_FROM_DEVICE; ctxt->frmr = frmr; pages_needed = min_t(int, pages_needed, xprt->sc_frmr_pg_list_len); - read = min_t(int, pages_needed << PAGE_SHIFT, rs_length); + read = min_t(int, (pages_needed << PAGE_SHIFT) - *page_offset, + rs_length); frmr->kva = page_address(rqstp->rq_arg.pages[pg_no]); frmr->direction = DMA_FROM_DEVICE; |