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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>
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1 changed files with 47 additions and 0 deletions
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@ -10,6 +10,11 @@
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#include <linux/nfs_fs.h>
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#include "nfs4_fs.h"
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#include "nfs42.h"
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#include "iostat.h"
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#include "pnfs.h"
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#include "internal.h"
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#define NFSDBG_FACILITY NFSDBG_PNFS
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static int nfs42_set_rw_stateid(nfs4_stateid *dst, struct file *file,
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fmode_t fmode)
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@ -166,7 +171,44 @@ loff_t nfs42_proc_llseek(struct file *filep, loff_t offset, int whence)
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return vfs_setpos(filep, res.sr_offset, inode->i_sb->s_maxbytes);
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}
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static void
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nfs42_layoutstat_prepare(struct rpc_task *task, void *calldata)
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{
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struct nfs42_layoutstat_data *data = calldata;
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struct nfs_server *server = NFS_SERVER(data->args.inode);
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nfs41_setup_sequence(nfs4_get_session(server), &data->args.seq_args,
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&data->res.seq_res, task);
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}
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static void
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nfs42_layoutstat_done(struct rpc_task *task, void *calldata)
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{
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struct nfs42_layoutstat_data *data = calldata;
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if (!nfs4_sequence_done(task, &data->res.seq_res))
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return;
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/* well, we don't care about errors at all! */
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if (task->tk_status)
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dprintk("%s server returns %d\n", __func__, task->tk_status);
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}
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static void
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nfs42_layoutstat_release(void *calldata)
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{
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struct nfs42_layoutstat_data *data = calldata;
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pnfs_put_layout_hdr(NFS_I(data->args.inode)->layout);
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nfs_iput_and_deactive(data->inode);
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kfree(data->args.devinfo);
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kfree(data);
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}
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static const struct rpc_call_ops nfs42_layoutstat_ops = {
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.rpc_call_prepare = nfs42_layoutstat_prepare,
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.rpc_call_done = nfs42_layoutstat_done,
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.rpc_release = nfs42_layoutstat_release,
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};
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int nfs42_proc_layoutstats_generic(struct nfs_server *server,
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@ -186,6 +228,11 @@ int nfs42_proc_layoutstats_generic(struct nfs_server *server,
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};
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struct rpc_task *task;
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data->inode = nfs_igrab_and_active(data->args.inode);
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if (!data->inode) {
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nfs42_layoutstat_release(data);
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return -EAGAIN;
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}
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nfs4_init_sequence(&data->args.seq_args, &data->res.seq_res, 0);
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task = rpc_run_task(&task_setup);
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if (IS_ERR(task))
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