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nfs41: allow async version layoutreturn

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Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Tom Haynes <loghyr@primarydata.com>
This commit is contained in:
Peng Tao 2014-11-17 09:30:40 +08:00 committed by Tom Haynes
parent 15eb67c153
commit 6c16605d6e
3 changed files with 16 additions and 8 deletions
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11
fs/nfs/nfs4proc.c
View File

@ -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;

11
fs/nfs/pnfs.c
View File

@ -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;

2
fs/nfs/pnfs.h
View File

@ -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);