diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-03-08 17:16:12 -0500 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-03-08 22:37:12 -0500 |
| commit | 0032a7a749a49b2c044092a1d0af5cfd0077f35d (patch) | |
| tree | b73ca09268f9b6f1c6b5c8bb9301b088a305830d | |
| parent | 2dc317565b6fd264929b41aaa9674431d75178ef (diff) | |
NFS: Don't copy read delegation stateids in setattr
The server will just return an NFS4ERR_OPENMODE anyway.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | fs/nfs/delegation.c | 16 | ||||
| -rw-r--r-- | fs/nfs/delegation.h | 2 | ||||
| -rw-r--r-- | fs/nfs/nfs4proc.c | 2 |
3 files changed, 12 insertions, 8 deletions
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index 97d53574bf53..e27c0972f94e 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -694,21 +694,25 @@ int nfs_delegations_present(struct nfs_client *clp) * nfs4_copy_delegation_stateid - Copy inode's state ID information * @dst: stateid data structure to fill in * @inode: inode to check + * @flags: delegation type requirement * - * Returns one and fills in "dst->data" * if inode had a delegation, - * otherwise zero is returned. + * Returns "true" and fills in "dst->data" * if inode had a delegation, + * otherwise "false" is returned. */ -int nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode) +bool nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode, + fmode_t flags) { struct nfs_inode *nfsi = NFS_I(inode); struct nfs_delegation *delegation; - int ret = 0; + bool ret; + flags &= FMODE_READ|FMODE_WRITE; rcu_read_lock(); delegation = rcu_dereference(nfsi->delegation); - if (delegation != NULL) { + ret = (delegation != NULL && (delegation->type & flags) == flags); + if (ret) { nfs4_stateid_copy(dst, &delegation->stateid); - ret = 1; + nfs_mark_delegation_referenced(delegation); } rcu_read_unlock(); return ret; diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h index 691a79609184..e193012123e7 100644 --- a/fs/nfs/delegation.h +++ b/fs/nfs/delegation.h @@ -54,7 +54,7 @@ void nfs_delegation_reap_unclaimed(struct nfs_client *clp); int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid, int issync); int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid); int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl); -int nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode); +bool nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode, fmode_t flags); void nfs_mark_delegation_referenced(struct nfs_delegation *delegation); int nfs_have_delegation(struct inode *inode, fmode_t flags); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index a8dd04db764f..3578ad36a5b8 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1929,7 +1929,7 @@ static int _nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred, nfs_fattr_init(fattr); - if (nfs4_copy_delegation_stateid(&arg.stateid, inode)) { + if (nfs4_copy_delegation_stateid(&arg.stateid, inode, FMODE_WRITE)) { /* Use that stateid */ } else if (state != NULL) { nfs4_select_rw_stateid(&arg.stateid, state, current->files, current->tgid); |