SUNRPC: Fix callback channel

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The NFSv4.1 callback channel is currently broken because the receive
message will keep shrinking because the backchannel receive buffer size
never gets reset.
The easiest solution to this problem is instead of changing the receive
buffer, to rather adjust the copied request.

Fixes: 38b7631fbe ("nfs4: limit callback decoding to received bytes")
Cc: Benjamin Coddington <bcodding@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

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This commit is contained in:

Trond Myklebust 2015-12-07 12:52:23 -08:00

parent 527e9316f8

commit 756b9b37cf

3 changed files with 14 additions and 13 deletions

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7

fs/nfs/callback_xdr.c

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8

net/sunrpc/backchannel_rqst.c

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12

net/sunrpc/svc.c

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