Return-Path: Sender: Trond Myklebust From: Trond Myklebust To: Benjamin Coddington , Anna Schumaker Cc: linux-nfs@vger.kernel.org Subject: [PATCH v5 07/10] pNFS: Retry NFS4ERR_OLD_STATEID errors in layoutreturn-on-close Date: Fri, 3 Nov 2017 07:35:36 -0400 Message-Id: <20171103113539.5551-8-trond.myklebust@primarydata.com> In-Reply-To: <20171103113539.5551-7-trond.myklebust@primarydata.com> References: <20171103113539.5551-1-trond.myklebust@primarydata.com> <20171103113539.5551-2-trond.myklebust@primarydata.com> <20171103113539.5551-3-trond.myklebust@primarydata.com> <20171103113539.5551-4-trond.myklebust@primarydata.com> <20171103113539.5551-5-trond.myklebust@primarydata.com> <20171103113539.5551-6-trond.myklebust@primarydata.com> <20171103113539.5551-7-trond.myklebust@primarydata.com> MIME-Version: 1.0 List-ID: If our layoutreturn on close operation returns an NFS4ERR_OLD_STATEID, then try to update the stateid and retry. We know that there should be no further LAYOUTGET requests being launched. Signed-off-by: Trond Myklebust --- fs/nfs/nfs4proc.c | 18 ++++++++++++++++-- fs/nfs/pnfs.c | 18 ++++++++++++++++++ fs/nfs/pnfs.h | 1 + 3 files changed, 35 insertions(+), 2 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index fe4a855dc965..1bb0e405aa57 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -3165,11 +3165,18 @@ static void nfs4_close_done(struct rpc_task *task, void *data) calldata->arg.lr_args = NULL; calldata->res.lr_res = NULL; break; + case -NFS4ERR_OLD_STATEID: + if (nfs4_refresh_layout_stateid(&calldata->arg.lr_args->stateid, + calldata->inode)) { + calldata->res.lr_ret = 0; + rpc_restart_call_prepare(task); + return; + } + /* Fallthrough */ case -NFS4ERR_ADMIN_REVOKED: case -NFS4ERR_DELEG_REVOKED: case -NFS4ERR_EXPIRED: case -NFS4ERR_BAD_STATEID: - case -NFS4ERR_OLD_STATEID: case -NFS4ERR_UNKNOWN_LAYOUTTYPE: case -NFS4ERR_WRONG_CRED: calldata->arg.lr_args = NULL; @@ -5787,11 +5794,18 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata) data->args.lr_args = NULL; data->res.lr_res = NULL; break; + case -NFS4ERR_OLD_STATEID: + if (nfs4_refresh_layout_stateid(&data->args.lr_args->stateid, + data->inode)) { + data->res.lr_ret = 0; + rpc_restart_call_prepare(task); + return; + } + /* Fallthrough */ case -NFS4ERR_ADMIN_REVOKED: case -NFS4ERR_DELEG_REVOKED: case -NFS4ERR_EXPIRED: case -NFS4ERR_BAD_STATEID: - case -NFS4ERR_OLD_STATEID: case -NFS4ERR_UNKNOWN_LAYOUTTYPE: case -NFS4ERR_WRONG_CRED: data->args.lr_args = NULL; diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 3bcd669a3152..5e4cd6a7af66 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -355,6 +355,24 @@ pnfs_clear_lseg_state(struct pnfs_layout_segment *lseg, } /* + * Update the seqid of a layout stateid + */ +bool nfs4_refresh_layout_stateid(nfs4_stateid *dst, struct inode *inode) +{ + struct pnfs_layout_hdr *lo; + bool ret = false; + + spin_lock(&inode->i_lock); + lo = NFS_I(inode)->layout; + if (lo && nfs4_stateid_match_other(dst, &lo->plh_stateid)) { + dst->seqid = lo->plh_stateid.seqid; + ret = true; + } + spin_unlock(&inode->i_lock); + return ret; +} + +/* * Mark a pnfs_layout_hdr and all associated layout segments as invalid * * In order to continue using the pnfs_layout_hdr, a full recovery diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 87f144f14d1e..3a8e2fbf038a 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -251,6 +251,7 @@ int pnfs_destroy_layouts_byfsid(struct nfs_client *clp, bool is_recall); int pnfs_destroy_layouts_byclid(struct nfs_client *clp, bool is_recall); +bool nfs4_refresh_layout_stateid(nfs4_stateid *dst, struct inode *inode); void pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo); void pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new, -- 2.13.6