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pNFS: fill in nfs42_layoutstat_ops 

Reviewed-by: Jeff Layton <jeff.layton@primarydata.com>
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Peng Tao 2015-06-23 19:51:56 +08:00 committed by Trond Myklebust
parent be3a5d2339
commit 1b4a4bd82c
1 changed files with 47 additions and 0 deletions
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47
fs/nfs/nfs42proc.c
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@ -10,6 +10,11 @@
#include <linux/nfs_fs.h>
#include "nfs4_fs.h"
#include "nfs42.h"
#include "iostat.h"
#include "pnfs.h"
#include "internal.h"
#define NFSDBG_FACILITY NFSDBG_PNFS
static int nfs42_set_rw_stateid(nfs4_stateid *dst, struct file *file,
fmode_t fmode)
@ -166,7 +171,44 @@ loff_t nfs42_proc_llseek(struct file *filep, loff_t offset, int whence)
return vfs_setpos(filep, res.sr_offset, inode->i_sb->s_maxbytes);
}
static void
nfs42_layoutstat_prepare(struct rpc_task *task, void *calldata)
{
struct nfs42_layoutstat_data *data = calldata;
struct nfs_server *server = NFS_SERVER(data->args.inode);
nfs41_setup_sequence(nfs4_get_session(server), &data->args.seq_args,
&data->res.seq_res, task);
}
static void
nfs42_layoutstat_done(struct rpc_task *task, void *calldata)
{
struct nfs42_layoutstat_data *data = calldata;
if (!nfs4_sequence_done(task, &data->res.seq_res))
return;
/* well, we don't care about errors at all! */
if (task->tk_status)
dprintk("%s server returns %d\n", __func__, task->tk_status);
}
static void
nfs42_layoutstat_release(void *calldata)
{
struct nfs42_layoutstat_data *data = calldata;
pnfs_put_layout_hdr(NFS_I(data->args.inode)->layout);
nfs_iput_and_deactive(data->inode);
kfree(data->args.devinfo);
kfree(data);
}
static const struct rpc_call_ops nfs42_layoutstat_ops = {
.rpc_call_prepare = nfs42_layoutstat_prepare,
.rpc_call_done = nfs42_layoutstat_done,
.rpc_release = nfs42_layoutstat_release,
};
int nfs42_proc_layoutstats_generic(struct nfs_server *server,
@ -186,6 +228,11 @@ int nfs42_proc_layoutstats_generic(struct nfs_server *server,
};
struct rpc_task *task;
data->inode = nfs_igrab_and_active(data->args.inode);
if (!data->inode) {
nfs42_layoutstat_release(data);
return -EAGAIN;
}
nfs4_init_sequence(&data->args.seq_args, &data->res.seq_res, 0);
task = rpc_run_task(&task_setup);
if (IS_ERR(task))