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| author | J. Bruce Fields <bfields@redhat.com> | 2012-12-04 18:03:46 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2012-12-17 16:02:41 -0500 |
| commit | 9b3234b9220aae5387b60bc35a424ab6748b2b59 (patch) | |
| tree | eeaf7761a957cd3acdd6c55a91587b28998d0bd9 /fs/nfsd/xdr4.h | |
| parent | 3a28e331115be5130fe061e6b4183b29385116a6 (diff) | |
| download | linux-9b3234b9220aae5387b60bc35a424ab6748b2b59.tar.bz2 | |
nfsd4: disable zero-copy on non-final read ops
To ensure ordering of read data with any following operations, turn off
zero copy if the read is not the final operation in the compound.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/xdr4.h')
| -rw-r--r-- | fs/nfsd/xdr4.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h index 331f8a3277ab..0889bfb43dc9 100644 --- a/fs/nfsd/xdr4.h +++ b/fs/nfsd/xdr4.h @@ -528,6 +528,14 @@ static inline bool nfsd4_not_cached(struct nfsd4_compoundres *resp) || nfsd4_is_solo_sequence(resp); } +static inline bool nfsd4_last_compound_op(struct svc_rqst *rqstp) +{ + struct nfsd4_compoundres *resp = rqstp->rq_resp; + struct nfsd4_compoundargs *argp = rqstp->rq_argp; + + return argp->opcnt == resp->opcnt; +} + #define NFS4_SVC_XDRSIZE sizeof(struct nfsd4_compoundargs) static inline void |