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| author | Chuck Lever <chuck.lever@oracle.com> | 2021-02-01 00:16:23 +0300 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2021-02-01 18:03:51 +0300 |
| commit | bad4c6eb5eaa8300e065bd4426727db5141d687d (patch) | |
| tree | d3958632fdd4fd7cc2e3290800286ecc55e0b52d /net/sunrpc/xprtrdma/svc_rdma_pcl.c | |
| parent | 1048ba83fb1c00cd24172e23e8263972f6b5d9ac (diff) | |
| download | linux-bad4c6eb5eaa8300e065bd4426727db5141d687d.tar.xz | |
SUNRPC: Fix NFS READs that start at non-page-aligned offsets
Anj Duvnjak reports that the Kodi.tv NFS client is not able to read
video files from a v5.10.11 Linux NFS server.
The new sendpage-based TCP sendto logic was not attentive to non-
zero page_base values. nfsd_splice_read() sets that field when a
READ payload starts in the middle of a page.
The Linux NFS client rarely emits an NFS READ that is not page-
aligned. All of my testing so far has been with Linux clients, so I
missed this one.
Reported-by: A. Duvnjak <avian@extremenerds.net>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=211471
Fixes: 4a85a6a3320b ("SUNRPC: Handle TCP socket sends with kernel_sendpage() again")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: A. Duvnjak <avian@extremenerds.net>
Diffstat (limited to 'net/sunrpc/xprtrdma/svc_rdma_pcl.c')
0 files changed, 0 insertions, 0 deletions