From 6c16605d6ef0dfb2e154119700d58b85c6b4dc71 Mon Sep 17 00:00:00 2001 From: Peng Tao Date: Mon, 17 Nov 2014 09:30:40 +0800 Subject: [PATCH] nfs41: allow async version layoutreturn Signed-off-by: Peng Tao Signed-off-by: Tom Haynes --- fs/nfs/nfs4proc.c | 11 +++++++++-- fs/nfs/pnfs.c | 11 ++++++----- fs/nfs/pnfs.h | 2 +- 3 files changed, 16 insertions(+), 8 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index e19b5dbe535a..2397c0f080d3 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -7810,7 +7810,7 @@ static const struct rpc_call_ops nfs4_layoutreturn_call_ops = { .rpc_release = nfs4_layoutreturn_release, }; -int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp) +int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync) { struct rpc_task *task; struct rpc_message msg = { @@ -7824,16 +7824,23 @@ int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp) .rpc_message = &msg, .callback_ops = &nfs4_layoutreturn_call_ops, .callback_data = lrp, + .flags = RPC_TASK_ASYNC, }; - int status; + int status = 0; dprintk("--> %s\n", __func__); nfs4_init_sequence(&lrp->args.seq_args, &lrp->res.seq_res, 1); task = rpc_run_task(&task_setup_data); if (IS_ERR(task)) return PTR_ERR(task); + if (sync == false) + goto out; + status = nfs4_wait_for_completion_rpc_task(task); + if (status != 0) + goto out; status = task->tk_status; trace_nfs4_layoutreturn(lrp->args.inode, status); +out: dprintk("<-- %s status=%d\n", __func__, status); rpc_put_task(task); return status; diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 9549b89e494b..0a0e209e8262 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -52,7 +52,7 @@ static LIST_HEAD(pnfs_modules_tbl); static int pnfs_send_layoutreturn(struct pnfs_layout_hdr *lo, nfs4_stateid stateid, - enum pnfs_iomode iomode); + enum pnfs_iomode iomode, bool sync); /* Return the registered pnfs layout driver module matching given id */ static struct pnfs_layoutdriver_type * @@ -392,7 +392,8 @@ pnfs_put_lseg(struct pnfs_layout_segment *lseg) spin_unlock(&inode->i_lock); pnfs_free_lseg(lseg); if (need_return) - pnfs_send_layoutreturn(lo, stateid, iomode); + pnfs_send_layoutreturn(lo, stateid, iomode, + true); else pnfs_put_layout_hdr(lo); } @@ -897,7 +898,7 @@ static void pnfs_clear_layoutcommit(struct inode *inode, static int pnfs_send_layoutreturn(struct pnfs_layout_hdr *lo, nfs4_stateid stateid, - enum pnfs_iomode iomode) + enum pnfs_iomode iomode, bool sync) { struct inode *ino = lo->plh_inode; struct nfs4_layoutreturn *lrp; @@ -923,7 +924,7 @@ pnfs_send_layoutreturn(struct pnfs_layout_hdr *lo, nfs4_stateid stateid, lrp->clp = NFS_SERVER(ino)->nfs_client; lrp->cred = lo->plh_lc_cred; - status = nfs4_proc_layoutreturn(lrp); + status = nfs4_proc_layoutreturn(lrp, sync); out: if (status) { spin_lock(&ino->i_lock); @@ -989,7 +990,7 @@ _pnfs_return_layout(struct inode *ino) spin_unlock(&ino->i_lock); pnfs_free_lseg_list(&tmp_list); - status = pnfs_send_layoutreturn(lo, stateid, IOMODE_ANY); + status = pnfs_send_layoutreturn(lo, stateid, IOMODE_ANY, true); out: dprintk("<-- %s status: %d\n", __func__, status); return status; diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 84c25cd476f8..b79f494d59ac 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -219,7 +219,7 @@ extern int nfs4_proc_getdeviceinfo(struct nfs_server *server, struct pnfs_device *dev, struct rpc_cred *cred); extern struct pnfs_layout_segment* nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags); -extern int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp); +extern int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync); /* pnfs.c */ void pnfs_get_layout_hdr(struct pnfs_layout_hdr *lo); -- 2.20.1