diff options
| -rw-r--r-- | fs/nfsd/nfs3proc.c | 2 | ||||
| -rw-r--r-- | fs/nfsd/nfsproc.c | 2 | ||||
| -rw-r--r-- | include/linux/sunrpc/svc.h | 19 | ||||
| -rw-r--r-- | net/sunrpc/svc.c | 2 |
4 files changed, 22 insertions, 3 deletions
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c index 7f5bad0393b1..eac82830bfd7 100644 --- a/fs/nfsd/nfs3proc.c +++ b/fs/nfsd/nfs3proc.c @@ -177,7 +177,7 @@ nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp, if (max_blocksize < resp->count) resp->count = max_blocksize; - svc_reserve(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4); + svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4); fh_copy(&resp->fh, &argp->fh); nfserr = nfsd_read(rqstp, &resp->fh, NULL, diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c index 5cc2eec981b8..b2c7147aa921 100644 --- a/fs/nfsd/nfsproc.c +++ b/fs/nfsd/nfsproc.c @@ -155,7 +155,7 @@ nfsd_proc_read(struct svc_rqst *rqstp, struct nfsd_readargs *argp, argp->count); argp->count = NFSSVC_MAXBLKSIZE_V2; } - svc_reserve(rqstp, (19<<2) + argp->count + 4); + svc_reserve_auth(rqstp, (19<<2) + argp->count + 4); resp->count = argp->count; nfserr = nfsd_read(rqstp, fh_copy(&resp->fh, &argp->fh), NULL, diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index 35fa4d5aadd0..4a7ae8ab6eb8 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -396,4 +396,23 @@ char * svc_print_addr(struct svc_rqst *, char *, size_t); #define RPC_MAX_ADDRBUFLEN (63U) +/* + * When we want to reduce the size of the reserved space in the response + * buffer, we need to take into account the size of any checksum data that + * may be at the end of the packet. This is difficult to determine exactly + * for all cases without actually generating the checksum, so we just use a + * static value. + */ +static inline void +svc_reserve_auth(struct svc_rqst *rqstp, int space) +{ + int added_space = 0; + + switch(rqstp->rq_authop->flavour) { + case RPC_AUTH_GSS: + added_space = RPC_MAX_AUTH_SIZE; + } + return svc_reserve(rqstp, space + added_space); +} + #endif /* SUNRPC_SVC_H */ diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index b7503c103ae8..e673ef993904 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -907,7 +907,7 @@ svc_process(struct svc_rqst *rqstp) * better idea of reply size */ if (procp->pc_xdrressize) - svc_reserve(rqstp, procp->pc_xdrressize<<2); + svc_reserve_auth(rqstp, procp->pc_xdrressize<<2); /* Call the function that processes the request. */ if (!versp->vs_dispatch) { |