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A very quiet cycle for nfsd, mainly just an RDMA update from Chuck Lever.

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Merge tag 'nfsd-4.7' of git://linux-nfs.org/~bfields/linux

Pull nfsd updates from Bruce Fields:
 "A very quiet cycle for nfsd, mainly just an RDMA update from Chuck
  Lever"

* tag 'nfsd-4.7' of git://linux-nfs.org/~bfields/linux:
  sunrpc: fix stripping of padded MIC tokens
  svcrpc: autoload rdma module
  svcrdma: Generalize svc_rdma_xdr_decode_req()
  svcrdma: Eliminate code duplication in svc_rdma_recvfrom()
  svcrdma: Drain QP before freeing svcrdma_xprt
  svcrdma: Post Receives only for forward channel requests
  svcrdma: Remove superfluous line from rdma_read_chunks()
  svcrdma: svc_rdma_put_context() is invoked twice in Send error path
  svcrdma: Do not add XDR padding to xdr_buf page vector
  svcrdma: Support IPv6 with NFS/RDMA
  nfsd: handle seqid wraparound in nfsd4_preprocess_layout_stateid
  Remove unnecessary allocation
This commit is contained in:
Linus Torvalds 2016-05-24 14:39:20 -07:00
commit 5d22c5ab85
11 changed files with 90 additions and 72 deletions
Download patch file Download diff file Expand all files Collapse all files

2
fs/nfsd/nfs3xdr.c
View file

@ -379,7 +379,7 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
*/
hdr = (void*)p - rqstp->rq_arg.head[0].iov_base;
dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len
- hdr;
+ rqstp->rq_arg.tail[0].iov_len - hdr;
/*
* Round the length of the data which was specified up to
* the next multiple of XDR units and then compare that

2
fs/nfsd/nfs4layouts.c
View file

@ -289,7 +289,7 @@ nfsd4_preprocess_layout_stateid(struct svc_rqst *rqstp,
status = nfserr_bad_stateid;
mutex_lock(&ls->ls_mutex);
if (stateid->si_generation > stid->sc_stateid.si_generation)
if (nfsd4_stateid_generation_after(stateid, &stid->sc_stateid))
goto out_unlock_stid;
if (layout_type != ls->ls_layout_type)
goto out_unlock_stid;

8
fs/nfsd/nfs4state.c
View file

@ -4651,12 +4651,6 @@ grace_disallows_io(struct net *net, struct inode *inode)
return opens_in_grace(net) && mandatory_lock(inode);
}
/* Returns true iff a is later than b: */
static bool stateid_generation_after(stateid_t *a, stateid_t *b)
{
return (s32)(a->si_generation - b->si_generation) > 0;
}
static __be32 check_stateid_generation(stateid_t *in, stateid_t *ref, bool has_session)
{
/*
@ -4670,7 +4664,7 @@ static __be32 check_stateid_generation(stateid_t *in, stateid_t *ref, bool has_s
return nfs_ok;
/* If the client sends us a stateid from the future, it's buggy: */
if (stateid_generation_after(in, ref))
if (nfsd4_stateid_generation_after(in, ref))
return nfserr_bad_stateid;
/*
* However, we could see a stateid from the past, even from a

5
fs/nfsd/state.h
View file

@ -573,6 +573,11 @@ enum nfsd4_cb_op {
NFSPROC4_CLNT_CB_SEQUENCE,
};
/* Returns true iff a is later than b: */
static inline bool nfsd4_stateid_generation_after(stateid_t *a, stateid_t *b)
{
return (s32)(a->si_generation - b->si_generation) > 0;
}
struct nfsd4_compound_state;
struct nfsd_net;