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| author | Dan Aloni <dan@kernelim.com> | 2020-10-02 22:33:43 +0300 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2020-10-16 15:15:04 -0400 |
| commit | c327a310ec4d6ecbea13185ed56c11def441d9ab (patch) | |
| tree | cc6107511a88d2d02c9e9393040770cd87ad9079 /net/sunrpc | |
| parent | c1488428a8daf5257a12dcec1739147e6aaf9557 (diff) | |
| download | linux-c327a310ec4d6ecbea13185ed56c11def441d9ab.tar.gz linux-c327a310ec4d6ecbea13185ed56c11def441d9ab.tar.bz2 linux-c327a310ec4d6ecbea13185ed56c11def441d9ab.zip | |
svcrdma: fix bounce buffers for unaligned offsets and multiple pages
This was discovered using O_DIRECT at the client side, with small
unaligned file offsets or IOs that span multiple file pages.
Fixes: e248aa7be86 ("svcrdma: Remove max_sge check at connect time")
Signed-off-by: Dan Aloni <dan@kernelim.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_sendto.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c index 7b94d971feb3..c3d588b149aa 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c +++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c @@ -638,10 +638,11 @@ static int svc_rdma_pull_up_reply_msg(struct svcxprt_rdma *rdma, while (remaining) { len = min_t(u32, PAGE_SIZE - pageoff, remaining); - memcpy(dst, page_address(*ppages), len); + memcpy(dst, page_address(*ppages) + pageoff, len); remaining -= len; dst += len; pageoff = 0; + ppages++; } } |