mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 00:50:54 +07:00
Merge branch 'layoutstats'
* layoutstats: pnfs/flexfiles: protect ktime manipulation with mirror lock nfs: provide pnfs_report_layoutstat when NFS42 is disabled pnfs/flexfiles: report layoutstat regularly nfs42: serialize LAYOUTSTATS calls of the same file pnfs/flexfiles: encode LAYOUTSTATS flexfiles specific data pnfs/flexfiles: add ff_layout_prepare_layoutstats pNFS/flexfiles: track when layout is first used pNFS/flexfiles: add layoutstats tracking pNFS/flexfiles: Remove unused struct members user_name, group_name pnfs: add pnfs_report_layoutstat helper function pNFS: fill in nfs42_layoutstat_ops NFSv.2/pnfs Add a LAYOUTSTATS rpc function
This commit is contained in:
Trond Myklebust
commit
122d328d30
@ -20,6 +20,7 @@
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#include "../nfs4trace.h"
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#include "../iostat.h"
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#include "../nfs.h"
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#include "../nfs42.h"
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#define NFSDBG_FACILITY NFSDBG_PNFS_LD
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@ -271,6 +272,7 @@ ff_layout_alloc_lseg(struct pnfs_layout_hdr *lh,
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spin_lock_init(&fls->mirror_array[i]->lock);
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fls->mirror_array[i]->ds_count = ds_count;
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fls->mirror_array[i]->lseg = &fls->generic_hdr;
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/* deviceid */
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rc = decode_deviceid(&stream, &devid);
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@ -412,6 +414,146 @@ ff_layout_get_lseg_count(struct nfs4_ff_layout_segment *fls)
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return 1;
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}
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static void
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nfs4_ff_start_busy_timer(struct nfs4_ff_busy_timer *timer)
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{
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/* first IO request? */
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if (atomic_inc_return(&timer->n_ops) == 1) {
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timer->start_time = ktime_get();
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}
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}
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static ktime_t
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nfs4_ff_end_busy_timer(struct nfs4_ff_busy_timer *timer)
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{
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ktime_t start, now;
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if (atomic_dec_return(&timer->n_ops) < 0)
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WARN_ON_ONCE(1);
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now = ktime_get();
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start = timer->start_time;
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timer->start_time = now;
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return ktime_sub(now, start);
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}
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static ktime_t
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nfs4_ff_layout_calc_completion_time(struct rpc_task *task)
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{
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return ktime_sub(ktime_get(), task->tk_start);
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}
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static bool
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nfs4_ff_layoutstat_start_io(struct nfs4_ff_layout_mirror *mirror,
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struct nfs4_ff_layoutstat *layoutstat)
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{
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static const ktime_t notime = {0};
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ktime_t now = ktime_get();
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nfs4_ff_start_busy_timer(&layoutstat->busy_timer);
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if (ktime_equal(mirror->start_time, notime))
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mirror->start_time = now;
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if (ktime_equal(mirror->last_report_time, notime))
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mirror->last_report_time = now;
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if (ktime_to_ms(ktime_sub(now, mirror->last_report_time)) >=
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FF_LAYOUTSTATS_REPORT_INTERVAL) {
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mirror->last_report_time = now;
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return true;
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}
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return false;
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}
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static void
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nfs4_ff_layout_stat_io_update_requested(struct nfs4_ff_layoutstat *layoutstat,
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__u64 requested)
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{
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struct nfs4_ff_io_stat *iostat = &layoutstat->io_stat;
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iostat->ops_requested++;
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iostat->bytes_requested += requested;
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}
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static void
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nfs4_ff_layout_stat_io_update_completed(struct nfs4_ff_layoutstat *layoutstat,
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__u64 requested,
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__u64 completed,
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ktime_t time_completed)
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{
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struct nfs4_ff_io_stat *iostat = &layoutstat->io_stat;
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ktime_t timer;
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iostat->ops_completed++;
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iostat->bytes_completed += completed;
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iostat->bytes_not_delivered += requested - completed;
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timer = nfs4_ff_end_busy_timer(&layoutstat->busy_timer);
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iostat->total_busy_time =
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ktime_add(iostat->total_busy_time, timer);
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iostat->aggregate_completion_time =
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ktime_add(iostat->aggregate_completion_time, time_completed);
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}
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static void
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nfs4_ff_layout_stat_io_start_read(struct nfs4_ff_layout_mirror *mirror,
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__u64 requested)
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{
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bool report;
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spin_lock(&mirror->lock);
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report = nfs4_ff_layoutstat_start_io(mirror, &mirror->read_stat);
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nfs4_ff_layout_stat_io_update_requested(&mirror->read_stat, requested);
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spin_unlock(&mirror->lock);
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if (report)
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pnfs_report_layoutstat(mirror->lseg->pls_layout->plh_inode);
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}
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static void
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nfs4_ff_layout_stat_io_end_read(struct rpc_task *task,
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struct nfs4_ff_layout_mirror *mirror,
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__u64 requested,
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__u64 completed)
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{
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spin_lock(&mirror->lock);
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nfs4_ff_layout_stat_io_update_completed(&mirror->read_stat,
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requested, completed,
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nfs4_ff_layout_calc_completion_time(task));
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spin_unlock(&mirror->lock);
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}
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static void
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nfs4_ff_layout_stat_io_start_write(struct nfs4_ff_layout_mirror *mirror,
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__u64 requested)
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{
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bool report;
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spin_lock(&mirror->lock);
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report = nfs4_ff_layoutstat_start_io(mirror , &mirror->write_stat);
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nfs4_ff_layout_stat_io_update_requested(&mirror->write_stat, requested);
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spin_unlock(&mirror->lock);
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if (report)
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pnfs_report_layoutstat(mirror->lseg->pls_layout->plh_inode);
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}
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static void
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nfs4_ff_layout_stat_io_end_write(struct rpc_task *task,
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struct nfs4_ff_layout_mirror *mirror,
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__u64 requested,
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__u64 completed,
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enum nfs3_stable_how committed)
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{
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if (committed == NFS_UNSTABLE)
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requested = completed = 0;
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spin_lock(&mirror->lock);
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nfs4_ff_layout_stat_io_update_completed(&mirror->write_stat,
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requested, completed,
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nfs4_ff_layout_calc_completion_time(task));
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spin_unlock(&mirror->lock);
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}
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static int
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ff_layout_alloc_commit_info(struct pnfs_layout_segment *lseg,
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struct nfs_commit_info *cinfo,
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@ -906,6 +1048,10 @@ ff_layout_reset_to_mds(struct pnfs_layout_segment *lseg, int idx)
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static int ff_layout_read_prepare_common(struct rpc_task *task,
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struct nfs_pgio_header *hdr)
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{
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nfs4_ff_layout_stat_io_start_read(
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FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx),
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hdr->args.count);
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if (unlikely(test_bit(NFS_CONTEXT_BAD, &hdr->args.context->flags))) {
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rpc_exit(task, -EIO);
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return -EIO;
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@ -959,15 +1105,15 @@ static void ff_layout_read_prepare_v4(struct rpc_task *task, void *data)
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{
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struct nfs_pgio_header *hdr = data;
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if (ff_layout_read_prepare_common(task, hdr))
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return;
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if (ff_layout_setup_sequence(hdr->ds_clp,
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&hdr->args.seq_args,
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&hdr->res.seq_res,
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task))
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return;
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if (ff_layout_read_prepare_common(task, hdr))
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return;
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if (nfs4_set_rw_stateid(&hdr->args.stateid, hdr->args.context,
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hdr->args.lock_context, FMODE_READ) == -EIO)
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rpc_exit(task, -EIO); /* lost lock, terminate I/O */
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@ -979,6 +1125,10 @@ static void ff_layout_read_call_done(struct rpc_task *task, void *data)
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dprintk("--> %s task->tk_status %d\n", __func__, task->tk_status);
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nfs4_ff_layout_stat_io_end_read(task,
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FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx),
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hdr->args.count, hdr->res.count);
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if (test_bit(NFS_IOHDR_REDO, &hdr->flags) &&
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task->tk_status == 0) {
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nfs4_sequence_done(task, &hdr->res.seq_res);
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@ -1080,6 +1230,10 @@ static int ff_layout_commit_done_cb(struct rpc_task *task,
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static int ff_layout_write_prepare_common(struct rpc_task *task,
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struct nfs_pgio_header *hdr)
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{
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nfs4_ff_layout_stat_io_start_write(
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FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx),
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hdr->args.count);
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if (unlikely(test_bit(NFS_CONTEXT_BAD, &hdr->args.context->flags))) {
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rpc_exit(task, -EIO);
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return -EIO;
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@ -1113,15 +1267,15 @@ static void ff_layout_write_prepare_v4(struct rpc_task *task, void *data)
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{
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struct nfs_pgio_header *hdr = data;
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if (ff_layout_write_prepare_common(task, hdr))
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return;
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if (ff_layout_setup_sequence(hdr->ds_clp,
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&hdr->args.seq_args,
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&hdr->res.seq_res,
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task))
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return;
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if (ff_layout_write_prepare_common(task, hdr))
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return;
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if (nfs4_set_rw_stateid(&hdr->args.stateid, hdr->args.context,
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hdr->args.lock_context, FMODE_WRITE) == -EIO)
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rpc_exit(task, -EIO); /* lost lock, terminate I/O */
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@ -1131,6 +1285,11 @@ static void ff_layout_write_call_done(struct rpc_task *task, void *data)
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{
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struct nfs_pgio_header *hdr = data;
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nfs4_ff_layout_stat_io_end_write(task,
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FF_LAYOUT_COMP(hdr->lseg, hdr->pgio_mirror_idx),
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hdr->args.count, hdr->res.count,
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hdr->res.verf->committed);
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if (test_bit(NFS_IOHDR_REDO, &hdr->flags) &&
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task->tk_status == 0) {
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nfs4_sequence_done(task, &hdr->res.seq_res);
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@ -1149,8 +1308,17 @@ static void ff_layout_write_count_stats(struct rpc_task *task, void *data)
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&NFS_CLIENT(hdr->inode)->cl_metrics[NFSPROC4_CLNT_WRITE]);
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}
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static void ff_layout_commit_prepare_common(struct rpc_task *task,
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struct nfs_commit_data *cdata)
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{
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nfs4_ff_layout_stat_io_start_write(
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FF_LAYOUT_COMP(cdata->lseg, cdata->ds_commit_index),
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0);
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}
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static void ff_layout_commit_prepare_v3(struct rpc_task *task, void *data)
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{
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ff_layout_commit_prepare_common(task, data);
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rpc_call_start(task);
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}
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@ -1158,10 +1326,30 @@ static void ff_layout_commit_prepare_v4(struct rpc_task *task, void *data)
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{
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struct nfs_commit_data *wdata = data;
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ff_layout_setup_sequence(wdata->ds_clp,
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if (ff_layout_setup_sequence(wdata->ds_clp,
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&wdata->args.seq_args,
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&wdata->res.seq_res,
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task);
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task))
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return;
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ff_layout_commit_prepare_common(task, data);
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}
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static void ff_layout_commit_done(struct rpc_task *task, void *data)
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{
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struct nfs_commit_data *cdata = data;
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struct nfs_page *req;
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__u64 count = 0;
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if (task->tk_status == 0) {
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list_for_each_entry(req, &cdata->pages, wb_list)
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count += req->wb_bytes;
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}
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nfs4_ff_layout_stat_io_end_write(task,
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FF_LAYOUT_COMP(cdata->lseg, cdata->ds_commit_index),
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count, count, NFS_FILE_SYNC);
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pnfs_generic_write_commit_done(task, data);
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}
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static void ff_layout_commit_count_stats(struct rpc_task *task, void *data)
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@ -1202,14 +1390,14 @@ static const struct rpc_call_ops ff_layout_write_call_ops_v4 = {
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static const struct rpc_call_ops ff_layout_commit_call_ops_v3 = {
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.rpc_call_prepare = ff_layout_commit_prepare_v3,
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.rpc_call_done = pnfs_generic_write_commit_done,
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.rpc_call_done = ff_layout_commit_done,
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.rpc_count_stats = ff_layout_commit_count_stats,
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.rpc_release = pnfs_generic_commit_release,
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};
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static const struct rpc_call_ops ff_layout_commit_call_ops_v4 = {
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.rpc_call_prepare = ff_layout_commit_prepare_v4,
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.rpc_call_done = pnfs_generic_write_commit_done,
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.rpc_call_done = ff_layout_commit_done,
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.rpc_count_stats = ff_layout_commit_count_stats,
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.rpc_release = pnfs_generic_commit_release,
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};
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@ -1253,7 +1441,6 @@ ff_layout_read_pagelist(struct nfs_pgio_header *hdr)
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fh = nfs4_ff_layout_select_ds_fh(lseg, idx);
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if (fh)
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hdr->args.fh = fh;
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/*
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* Note that if we ever decide to split across DSes,
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* then we may need to handle dense-like offsets.
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@ -1382,6 +1569,7 @@ static int ff_layout_initiate_commit(struct nfs_commit_data *data, int how)
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fh = select_ds_fh_from_commit(lseg, data->ds_commit_index);
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if (fh)
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data->args.fh = fh;
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return nfs_initiate_commit(ds_clnt, data, ds->ds_clp->rpc_ops,
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vers == 3 ? &ff_layout_commit_call_ops_v3 :
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&ff_layout_commit_call_ops_v4,
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@ -1485,6 +1673,247 @@ ff_layout_encode_layoutreturn(struct pnfs_layout_hdr *lo,
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dprintk("%s: Return\n", __func__);
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}
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static int
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ff_layout_ntop4(const struct sockaddr *sap, char *buf, const size_t buflen)
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{
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const struct sockaddr_in *sin = (struct sockaddr_in *)sap;
|
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|
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return snprintf(buf, buflen, "%pI4", &sin->sin_addr);
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}
|
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|
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static size_t
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ff_layout_ntop6_noscopeid(const struct sockaddr *sap, char *buf,
|
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const int buflen)
|
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{
|
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const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap;
|
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const struct in6_addr *addr = &sin6->sin6_addr;
|
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|
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/*
|
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* RFC 4291, Section 2.2.2
|
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*
|
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* Shorthanded ANY address
|
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*/
|
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if (ipv6_addr_any(addr))
|
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return snprintf(buf, buflen, "::");
|
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|
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/*
|
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* RFC 4291, Section 2.2.2
|
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*
|
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* Shorthanded loopback address
|
||||
*/
|
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if (ipv6_addr_loopback(addr))
|
||||
return snprintf(buf, buflen, "::1");
|
||||
|
||||
/*
|
||||
* RFC 4291, Section 2.2.3
|
||||
*
|
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* Special presentation address format for mapped v4
|
||||
* addresses.
|
||||
*/
|
||||
if (ipv6_addr_v4mapped(addr))
|
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return snprintf(buf, buflen, "::ffff:%pI4",
|
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&addr->s6_addr32[3]);
|
||||
|
||||
/*
|
||||
* RFC 4291, Section 2.2.1
|
||||
*/
|
||||
return snprintf(buf, buflen, "%pI6c", addr);
|
||||
}
|
||||
|
||||
/* Derived from rpc_sockaddr2uaddr */
|
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static void
|
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ff_layout_encode_netaddr(struct xdr_stream *xdr, struct nfs4_pnfs_ds_addr *da)
|
||||
{
|
||||
struct sockaddr *sap = (struct sockaddr *)&da->da_addr;
|
||||
char portbuf[RPCBIND_MAXUADDRPLEN];
|
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char addrbuf[RPCBIND_MAXUADDRLEN];
|
||||
char *netid;
|
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unsigned short port;
|
||||
int len, netid_len;
|
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__be32 *p;
|
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|
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switch (sap->sa_family) {
|
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case AF_INET:
|
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if (ff_layout_ntop4(sap, addrbuf, sizeof(addrbuf)) == 0)
|
||||
return;
|
||||
port = ntohs(((struct sockaddr_in *)sap)->sin_port);
|
||||
netid = "tcp";
|
||||
netid_len = 3;
|
||||
break;
|
||||
case AF_INET6:
|
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if (ff_layout_ntop6_noscopeid(sap, addrbuf, sizeof(addrbuf)) == 0)
|
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return;
|
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port = ntohs(((struct sockaddr_in6 *)sap)->sin6_port);
|
||||
netid = "tcp6";
|
||||
netid_len = 4;
|
||||
break;
|
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default:
|
||||
/* we only support tcp and tcp6 */
|
||||
WARN_ON_ONCE(1);
|
||||
return;
|
||||
}
|
||||
|
||||
snprintf(portbuf, sizeof(portbuf), ".%u.%u", port >> 8, port & 0xff);
|
||||
len = strlcat(addrbuf, portbuf, sizeof(addrbuf));
|
||||
|
||||
p = xdr_reserve_space(xdr, 4 + netid_len);
|
||||
xdr_encode_opaque(p, netid, netid_len);
|
||||
|
||||
p = xdr_reserve_space(xdr, 4 + len);
|
||||
xdr_encode_opaque(p, addrbuf, len);
|
||||
}
|
||||
|
||||
static void
|
||||
ff_layout_encode_nfstime(struct xdr_stream *xdr,
|
||||
ktime_t t)
|
||||
{
|
||||
struct timespec64 ts;
|
||||
__be32 *p;
|
||||
|
||||
p = xdr_reserve_space(xdr, 12);
|
||||
ts = ktime_to_timespec64(t);
|
||||
p = xdr_encode_hyper(p, ts.tv_sec);
|
||||
*p++ = cpu_to_be32(ts.tv_nsec);
|
||||
}
|
||||
|
||||
static void
|
||||
ff_layout_encode_io_latency(struct xdr_stream *xdr,
|
||||
struct nfs4_ff_io_stat *stat)
|
||||
{
|
||||
__be32 *p;
|
||||
|
||||
p = xdr_reserve_space(xdr, 5 * 8);
|
||||
p = xdr_encode_hyper(p, stat->ops_requested);
|
||||
p = xdr_encode_hyper(p, stat->bytes_requested);
|
||||
p = xdr_encode_hyper(p, stat->ops_completed);
|
||||
p = xdr_encode_hyper(p, stat->bytes_completed);
|
||||
p = xdr_encode_hyper(p, stat->bytes_not_delivered);
|
||||
ff_layout_encode_nfstime(xdr, stat->total_busy_time);
|
||||
ff_layout_encode_nfstime(xdr, stat->aggregate_completion_time);
|
||||
}
|
||||
|
||||
static void
|
||||
ff_layout_encode_layoutstats(struct xdr_stream *xdr,
|
||||
struct nfs42_layoutstat_args *args,
|
||||
struct nfs42_layoutstat_devinfo *devinfo)
|
||||
{
|
||||
struct nfs4_ff_layout_mirror *mirror = devinfo->layout_private;
|
||||
struct nfs4_pnfs_ds_addr *da;
|
||||
struct nfs4_pnfs_ds *ds = mirror->mirror_ds->ds;
|
||||
struct nfs_fh *fh = &mirror->fh_versions[0];
|
||||
__be32 *p, *start;
|
||||
|
||||
da = list_first_entry(&ds->ds_addrs, struct nfs4_pnfs_ds_addr, da_node);
|
||||
dprintk("%s: DS %s: encoding address %s\n",
|
||||
__func__, ds->ds_remotestr, da->da_remotestr);
|
||||
/* layoutupdate length */
|
||||
start = xdr_reserve_space(xdr, 4);
|
||||
/* netaddr4 */
|
||||
ff_layout_encode_netaddr(xdr, da);
|
||||
/* nfs_fh4 */
|
||||
p = xdr_reserve_space(xdr, 4 + fh->size);
|
||||
xdr_encode_opaque(p, fh->data, fh->size);
|
||||
/* ff_io_latency4 read */
|
||||
spin_lock(&mirror->lock);
|
||||
ff_layout_encode_io_latency(xdr, &mirror->read_stat.io_stat);
|
||||
/* ff_io_latency4 write */
|
||||
ff_layout_encode_io_latency(xdr, &mirror->write_stat.io_stat);
|
||||
spin_unlock(&mirror->lock);
|
||||
/* nfstime4 */
|
||||
ff_layout_encode_nfstime(xdr, ktime_sub(ktime_get(), mirror->start_time));
|
||||
/* bool */
|
||||
p = xdr_reserve_space(xdr, 4);
|
||||
*p = cpu_to_be32(false);
|
||||
|
||||
*start = cpu_to_be32((xdr->p - start - 1) * 4);
|
||||
}
|
||||
|
||||
static bool
|
||||
ff_layout_mirror_prepare_stats(struct nfs42_layoutstat_args *args,
|
||||
struct pnfs_layout_segment *pls,
|
||||
int *dev_count, int dev_limit)
|
||||
{
|
||||
struct nfs4_ff_layout_mirror *mirror;
|
||||
struct nfs4_deviceid_node *dev;
|
||||
struct nfs42_layoutstat_devinfo *devinfo;
|
||||
int i;
|
||||
|
||||
for (i = 0; i <= FF_LAYOUT_MIRROR_COUNT(pls); i++) {
|
||||
if (*dev_count >= dev_limit)
|
||||
break;
|
||||
mirror = FF_LAYOUT_COMP(pls, i);
|
||||
if (!mirror || !mirror->mirror_ds)
|
||||
continue;
|
||||
dev = FF_LAYOUT_DEVID_NODE(pls, i);
|
||||
devinfo = &args->devinfo[*dev_count];
|
||||
memcpy(&devinfo->dev_id, &dev->deviceid, NFS4_DEVICEID4_SIZE);
|
||||
devinfo->offset = pls->pls_range.offset;
|
||||
devinfo->length = pls->pls_range.length;
|
||||
/* well, we don't really know if IO is continuous or not! */
|
||||
devinfo->read_count = mirror->read_stat.io_stat.bytes_completed;
|
||||
devinfo->read_bytes = mirror->read_stat.io_stat.bytes_completed;
|
||||
devinfo->write_count = mirror->write_stat.io_stat.bytes_completed;
|
||||
devinfo->write_bytes = mirror->write_stat.io_stat.bytes_completed;
|
||||
devinfo->layout_type = LAYOUT_FLEX_FILES;
|
||||
devinfo->layoutstats_encode = ff_layout_encode_layoutstats;
|
||||
devinfo->layout_private = mirror;
|
||||
/* lseg refcount put in cleanup_layoutstats */
|
||||
pnfs_get_lseg(pls);
|
||||
|
||||
++(*dev_count);
|
||||
}
|
||||
|
||||
return *dev_count < dev_limit;
|
||||
}
|
||||
|
||||
static int
|
||||
ff_layout_prepare_layoutstats(struct nfs42_layoutstat_args *args)
|
||||
{
|
||||
struct pnfs_layout_segment *pls;
|
||||
int dev_count = 0;
|
||||
|
||||
spin_lock(&args->inode->i_lock);
|
||||
list_for_each_entry(pls, &NFS_I(args->inode)->layout->plh_segs, pls_list) {
|
||||
dev_count += FF_LAYOUT_MIRROR_COUNT(pls);
|
||||
}
|
||||
spin_unlock(&args->inode->i_lock);
|
||||
/* For now, send at most PNFS_LAYOUTSTATS_MAXDEV statistics */
|
||||
if (dev_count > PNFS_LAYOUTSTATS_MAXDEV) {
|
||||
dprintk("%s: truncating devinfo to limit (%d:%d)\n",
|
||||
__func__, dev_count, PNFS_LAYOUTSTATS_MAXDEV);
|
||||
dev_count = PNFS_LAYOUTSTATS_MAXDEV;
|
||||
}
|
||||
args->devinfo = kmalloc(dev_count * sizeof(*args->devinfo), GFP_KERNEL);
|
||||
if (!args->devinfo)
|
||||
return -ENOMEM;
|
||||
|
||||
dev_count = 0;
|
||||
spin_lock(&args->inode->i_lock);
|
||||
list_for_each_entry(pls, &NFS_I(args->inode)->layout->plh_segs, pls_list) {
|
||||
if (!ff_layout_mirror_prepare_stats(args, pls, &dev_count,
|
||||
PNFS_LAYOUTSTATS_MAXDEV)) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
spin_unlock(&args->inode->i_lock);
|
||||
args->num_dev = dev_count;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
ff_layout_cleanup_layoutstats(struct nfs42_layoutstat_data *data)
|
||||
{
|
||||
struct nfs4_ff_layout_mirror *mirror;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < data->args.num_dev; i++) {
|
||||
mirror = data->args.devinfo[i].layout_private;
|
||||
data->args.devinfo[i].layout_private = NULL;
|
||||
pnfs_put_lseg(mirror->lseg);
|
||||
}
|
||||
}
|
||||
|
||||
static struct pnfs_layoutdriver_type flexfilelayout_type = {
|
||||
.id = LAYOUT_FLEX_FILES,
|
||||
.name = "LAYOUT_FLEX_FILES",
|
||||
@ -1507,6 +1936,8 @@ static struct pnfs_layoutdriver_type flexfilelayout_type = {
|
||||
.alloc_deviceid_node = ff_layout_alloc_deviceid_node,
|
||||
.encode_layoutreturn = ff_layout_encode_layoutreturn,
|
||||
.sync = pnfs_nfs_generic_sync,
|
||||
.prepare_layoutstats = ff_layout_prepare_layoutstats,
|
||||
.cleanup_layoutstats = ff_layout_cleanup_layoutstats,
|
||||
};
|
||||
|
||||
static int __init nfs4flexfilelayout_init(void)
|
||||
|
||||
@ -15,6 +15,9 @@
|
||||
* due to network error etc. */
|
||||
#define NFS4_FLEXFILE_LAYOUT_MAX_MIRROR_CNT 4096
|
||||
|
||||
/* LAYOUTSTATS report interval in ms */
|
||||
#define FF_LAYOUTSTATS_REPORT_INTERVAL (60000L)
|
||||
|
||||
struct nfs4_ff_ds_version {
|
||||
u32 version;
|
||||
u32 minor_version;
|
||||
@ -41,19 +44,42 @@ struct nfs4_ff_layout_ds_err {
|
||||
struct nfs4_deviceid deviceid;
|
||||
};
|
||||
|
||||
struct nfs4_ff_io_stat {
|
||||
__u64 ops_requested;
|
||||
__u64 bytes_requested;
|
||||
__u64 ops_completed;
|
||||
__u64 bytes_completed;
|
||||
__u64 bytes_not_delivered;
|
||||
ktime_t total_busy_time;
|
||||
ktime_t aggregate_completion_time;
|
||||
};
|
||||
|
||||
struct nfs4_ff_busy_timer {
|
||||
ktime_t start_time;
|
||||
atomic_t n_ops;
|
||||
};
|
||||
|
||||
struct nfs4_ff_layoutstat {
|
||||
struct nfs4_ff_io_stat io_stat;
|
||||
struct nfs4_ff_busy_timer busy_timer;
|
||||
};
|
||||
|
||||
struct nfs4_ff_layout_mirror {
|
||||
struct pnfs_layout_segment *lseg; /* back pointer */
|
||||
u32 ds_count;
|
||||
u32 efficiency;
|
||||
struct nfs4_ff_layout_ds *mirror_ds;
|
||||
u32 fh_versions_cnt;
|
||||
struct nfs_fh *fh_versions;
|
||||
nfs4_stateid stateid;
|
||||
struct nfs4_string user_name;
|
||||
struct nfs4_string group_name;
|
||||
u32 uid;
|
||||
u32 gid;
|
||||
struct rpc_cred *cred;
|
||||
spinlock_t lock;
|
||||
struct nfs4_ff_layoutstat read_stat;
|
||||
struct nfs4_ff_layoutstat write_stat;
|
||||
ktime_t start_time;
|
||||
ktime_t last_report_time;
|
||||
};
|
||||
|
||||
struct nfs4_ff_layout_segment {
|
||||
|
||||
@ -5,11 +5,18 @@
|
||||
#ifndef __LINUX_FS_NFS_NFS4_2_H
|
||||
#define __LINUX_FS_NFS_NFS4_2_H
|
||||
|
||||
/*
|
||||
* FIXME: four LAYOUTSTATS calls per compound at most! Do we need to support
|
||||
* more? Need to consider not to pre-alloc too much for a compound.
|
||||
*/
|
||||
#define PNFS_LAYOUTSTATS_MAXDEV (4)
|
||||
|
||||
/* nfs4.2proc.c */
|
||||
int nfs42_proc_allocate(struct file *, loff_t, loff_t);
|
||||
int nfs42_proc_deallocate(struct file *, loff_t, loff_t);
|
||||
loff_t nfs42_proc_llseek(struct file *, loff_t, int);
|
||||
|
||||
int nfs42_proc_layoutstats_generic(struct nfs_server *,
|
||||
struct nfs42_layoutstat_data *);
|
||||
/* nfs4.2xdr.h */
|
||||
extern struct rpc_procinfo nfs4_2_procedures[];
|
||||
|
||||
|
||||
@ -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)
|
||||
@ -165,3 +170,79 @@ 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;
|
||||
struct nfs_server *nfss = NFS_SERVER(data->args.inode);
|
||||
|
||||
if (nfss->pnfs_curr_ld->cleanup_layoutstats)
|
||||
nfss->pnfs_curr_ld->cleanup_layoutstats(data);
|
||||
|
||||
pnfs_put_layout_hdr(NFS_I(data->args.inode)->layout);
|
||||
smp_mb__before_atomic();
|
||||
clear_bit(NFS_INO_LAYOUTSTATS, &NFS_I(data->args.inode)->flags);
|
||||
smp_mb__after_atomic();
|
||||
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,
|
||||
struct nfs42_layoutstat_data *data)
|
||||
{
|
||||
struct rpc_message msg = {
|
||||
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LAYOUTSTATS],
|
||||
.rpc_argp = &data->args,
|
||||
.rpc_resp = &data->res,
|
||||
};
|
||||
struct rpc_task_setup task_setup = {
|
||||
.rpc_client = server->client,
|
||||
.rpc_message = &msg,
|
||||
.callback_ops = &nfs42_layoutstat_ops,
|
||||
.callback_data = data,
|
||||
.flags = RPC_TASK_ASYNC,
|
||||
};
|
||||
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))
|
||||
return PTR_ERR(task);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -4,6 +4,8 @@
|
||||
#ifndef __LINUX_FS_NFS_NFS4_2XDR_H
|
||||
#define __LINUX_FS_NFS_NFS4_2XDR_H
|
||||
|
||||
#include "nfs42.h"
|
||||
|
||||
#define encode_fallocate_maxsz (encode_stateid_maxsz + \
|
||||
2 /* offset */ + \
|
||||
2 /* length */)
|
||||
@ -22,6 +24,16 @@
|
||||
1 /* whence */ + \
|
||||
2 /* offset */ + \
|
||||
2 /* length */)
|
||||
#define encode_io_info_maxsz 4
|
||||
#define encode_layoutstats_maxsz (op_decode_hdr_maxsz + \
|
||||
2 /* offset */ + \
|
||||
2 /* length */ + \
|
||||
encode_stateid_maxsz + \
|
||||
encode_io_info_maxsz + \
|
||||
encode_io_info_maxsz + \
|
||||
1 /* opaque devaddr4 length */ + \
|
||||
XDR_QUADLEN(PNFS_LAYOUTSTATS_MAXSIZE))
|
||||
#define decode_layoutstats_maxsz (op_decode_hdr_maxsz)
|
||||
|
||||
#define NFS4_enc_allocate_sz (compound_encode_hdr_maxsz + \
|
||||
encode_putfh_maxsz + \
|
||||
@ -45,6 +57,14 @@
|
||||
#define NFS4_dec_seek_sz (compound_decode_hdr_maxsz + \
|
||||
decode_putfh_maxsz + \
|
||||
decode_seek_maxsz)
|
||||
#define NFS4_enc_layoutstats_sz (compound_encode_hdr_maxsz + \
|
||||
encode_sequence_maxsz + \
|
||||
encode_putfh_maxsz + \
|
||||
PNFS_LAYOUTSTATS_MAXDEV * encode_layoutstats_maxsz)
|
||||
#define NFS4_dec_layoutstats_sz (compound_decode_hdr_maxsz + \
|
||||
decode_sequence_maxsz + \
|
||||
decode_putfh_maxsz + \
|
||||
PNFS_LAYOUTSTATS_MAXDEV * decode_layoutstats_maxsz)
|
||||
|
||||
|
||||
static void encode_fallocate(struct xdr_stream *xdr,
|
||||
@ -81,6 +101,33 @@ static void encode_seek(struct xdr_stream *xdr,
|
||||
encode_uint32(xdr, args->sa_what);
|
||||
}
|
||||
|
||||
static void encode_layoutstats(struct xdr_stream *xdr,
|
||||
struct nfs42_layoutstat_args *args,
|
||||
struct nfs42_layoutstat_devinfo *devinfo,
|
||||
struct compound_hdr *hdr)
|
||||
{
|
||||
__be32 *p;
|
||||
|
||||
encode_op_hdr(xdr, OP_LAYOUTSTATS, decode_layoutstats_maxsz, hdr);
|
||||
p = reserve_space(xdr, 8 + 8);
|
||||
p = xdr_encode_hyper(p, devinfo->offset);
|
||||
p = xdr_encode_hyper(p, devinfo->length);
|
||||
encode_nfs4_stateid(xdr, &args->stateid);
|
||||
p = reserve_space(xdr, 4*8 + NFS4_DEVICEID4_SIZE + 4);
|
||||
p = xdr_encode_hyper(p, devinfo->read_count);
|
||||
p = xdr_encode_hyper(p, devinfo->read_bytes);
|
||||
p = xdr_encode_hyper(p, devinfo->write_count);
|
||||
p = xdr_encode_hyper(p, devinfo->write_bytes);
|
||||
p = xdr_encode_opaque_fixed(p, devinfo->dev_id.data,
|
||||
NFS4_DEVICEID4_SIZE);
|
||||
/* Encode layoutupdate4 */
|
||||
*p++ = cpu_to_be32(devinfo->layout_type);
|
||||
if (devinfo->layoutstats_encode != NULL)
|
||||
devinfo->layoutstats_encode(xdr, args, devinfo);
|
||||
else
|
||||
encode_uint32(xdr, 0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Encode ALLOCATE request
|
||||
*/
|
||||
@ -137,6 +184,28 @@ static void nfs4_xdr_enc_seek(struct rpc_rqst *req,
|
||||
encode_nops(&hdr);
|
||||
}
|
||||
|
||||
/*
|
||||
* Encode LAYOUTSTATS request
|
||||
*/
|
||||
static void nfs4_xdr_enc_layoutstats(struct rpc_rqst *req,
|
||||
struct xdr_stream *xdr,
|
||||
struct nfs42_layoutstat_args *args)
|
||||
{
|
||||
int i;
|
||||
|
||||
struct compound_hdr hdr = {
|
||||
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
||||
};
|
||||
|
||||
encode_compound_hdr(xdr, req, &hdr);
|
||||
encode_sequence(xdr, &args->seq_args, &hdr);
|
||||
encode_putfh(xdr, args->fh, &hdr);
|
||||
WARN_ON(args->num_dev > PNFS_LAYOUTSTATS_MAXDEV);
|
||||
for (i = 0; i < args->num_dev; i++)
|
||||
encode_layoutstats(xdr, args, &args->devinfo[i], &hdr);
|
||||
encode_nops(&hdr);
|
||||
}
|
||||
|
||||
static int decode_allocate(struct xdr_stream *xdr, struct nfs42_falloc_res *res)
|
||||
{
|
||||
return decode_op_hdr(xdr, OP_ALLOCATE);
|
||||
@ -169,6 +238,28 @@ static int decode_seek(struct xdr_stream *xdr, struct nfs42_seek_res *res)
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
static int decode_layoutstats(struct xdr_stream *xdr,
|
||||
struct nfs42_layoutstat_res *res)
|
||||
{
|
||||
int status;
|
||||
__be32 *p;
|
||||
|
||||
status = decode_op_hdr(xdr, OP_LAYOUTSTATS);
|
||||
if (status)
|
||||
return status;
|
||||
|
||||
p = xdr_inline_decode(xdr, 4);
|
||||
if (unlikely(!p))
|
||||
goto out_overflow;
|
||||
|
||||
res->rpc_status = be32_to_cpup(p++);
|
||||
return 0;
|
||||
|
||||
out_overflow:
|
||||
print_overflow_msg(__func__, xdr);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/*
|
||||
* Decode ALLOCATE request
|
||||
*/
|
||||
@ -246,4 +337,35 @@ static int nfs4_xdr_dec_seek(struct rpc_rqst *rqstp,
|
||||
out:
|
||||
return status;
|
||||
}
|
||||
|
||||
/*
|
||||
* Decode LAYOUTSTATS request
|
||||
*/
|
||||
static int nfs4_xdr_dec_layoutstats(struct rpc_rqst *rqstp,
|
||||
struct xdr_stream *xdr,
|
||||
struct nfs42_layoutstat_res *res)
|
||||
{
|
||||
struct compound_hdr hdr;
|
||||
int status, i;
|
||||
|
||||
status = decode_compound_hdr(xdr, &hdr);
|
||||
if (status)
|
||||
goto out;
|
||||
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
||||
if (status)
|
||||
goto out;
|
||||
status = decode_putfh(xdr);
|
||||
if (status)
|
||||
goto out;
|
||||
WARN_ON(res->num_dev > PNFS_LAYOUTSTATS_MAXDEV);
|
||||
for (i = 0; i < res->num_dev; i++) {
|
||||
status = decode_layoutstats(xdr, res);
|
||||
if (status)
|
||||
goto out;
|
||||
}
|
||||
out:
|
||||
res->rpc_status = status;
|
||||
return status;
|
||||
}
|
||||
|
||||
#endif /* __LINUX_FS_NFS_NFS4_2XDR_H */
|
||||
|
||||
@ -233,6 +233,7 @@ extern int nfs4_handle_exception(struct nfs_server *, int, struct nfs4_exception
|
||||
extern int nfs4_call_sync(struct rpc_clnt *, struct nfs_server *,
|
||||
struct rpc_message *, struct nfs4_sequence_args *,
|
||||
struct nfs4_sequence_res *, int);
|
||||
extern void nfs4_init_sequence(struct nfs4_sequence_args *, struct nfs4_sequence_res *, int);
|
||||
extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, struct rpc_cred *, struct nfs4_setclientid_res *);
|
||||
extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct nfs4_setclientid_res *arg, struct rpc_cred *);
|
||||
extern int nfs4_proc_get_rootfh(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *, bool);
|
||||
|
||||
@ -476,7 +476,7 @@ struct nfs4_call_sync_data {
|
||||
struct nfs4_sequence_res *seq_res;
|
||||
};
|
||||
|
||||
static void nfs4_init_sequence(struct nfs4_sequence_args *args,
|
||||
void nfs4_init_sequence(struct nfs4_sequence_args *args,
|
||||
struct nfs4_sequence_res *res, int cache_reply)
|
||||
{
|
||||
args->sa_slot = NULL;
|
||||
|
||||
@ -7431,6 +7431,7 @@ struct rpc_procinfo nfs4_procedures[] = {
|
||||
PROC(SEEK, enc_seek, dec_seek),
|
||||
PROC(ALLOCATE, enc_allocate, dec_allocate),
|
||||
PROC(DEALLOCATE, enc_deallocate, dec_deallocate),
|
||||
PROC(LAYOUTSTATS, enc_layoutstats, dec_layoutstats),
|
||||
#endif /* CONFIG_NFS_V4_2 */
|
||||
};
|
||||
|
||||
|
||||
@ -35,6 +35,7 @@
|
||||
#include "iostat.h"
|
||||
#include "nfs4trace.h"
|
||||
#include "delegation.h"
|
||||
#include "nfs42.h"
|
||||
|
||||
#define NFSDBG_FACILITY NFSDBG_PNFS
|
||||
#define PNFS_LAYOUTGET_RETRY_TIMEOUT (120*HZ)
|
||||
@ -2250,3 +2251,60 @@ struct nfs4_threshold *pnfs_mdsthreshold_alloc(void)
|
||||
}
|
||||
return thp;
|
||||
}
|
||||
|
||||
#if IS_ENABLED(CONFIG_NFS_V4_2)
|
||||
int
|
||||
pnfs_report_layoutstat(struct inode *inode)
|
||||
{
|
||||
struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
|
||||
struct nfs_server *server = NFS_SERVER(inode);
|
||||
struct nfs_inode *nfsi = NFS_I(inode);
|
||||
struct nfs42_layoutstat_data *data;
|
||||
struct pnfs_layout_hdr *hdr;
|
||||
int status = 0;
|
||||
|
||||
if (!pnfs_enabled_sb(server) || !ld->prepare_layoutstats)
|
||||
goto out;
|
||||
|
||||
if (test_and_set_bit(NFS_INO_LAYOUTSTATS, &nfsi->flags))
|
||||
goto out;
|
||||
|
||||
spin_lock(&inode->i_lock);
|
||||
if (!NFS_I(inode)->layout) {
|
||||
spin_unlock(&inode->i_lock);
|
||||
goto out;
|
||||
}
|
||||
hdr = NFS_I(inode)->layout;
|
||||
pnfs_get_layout_hdr(hdr);
|
||||
spin_unlock(&inode->i_lock);
|
||||
|
||||
data = kzalloc(sizeof(*data), GFP_KERNEL);
|
||||
if (!data) {
|
||||
status = -ENOMEM;
|
||||
goto out_put;
|
||||
}
|
||||
|
||||
data->args.fh = NFS_FH(inode);
|
||||
data->args.inode = inode;
|
||||
nfs4_stateid_copy(&data->args.stateid, &hdr->plh_stateid);
|
||||
status = ld->prepare_layoutstats(&data->args);
|
||||
if (status)
|
||||
goto out_free;
|
||||
|
||||
status = nfs42_proc_layoutstats_generic(NFS_SERVER(inode), data);
|
||||
|
||||
out:
|
||||
dprintk("%s returns %d\n", __func__, status);
|
||||
return status;
|
||||
|
||||
out_free:
|
||||
kfree(data);
|
||||
out_put:
|
||||
pnfs_put_layout_hdr(hdr);
|
||||
smp_mb__before_atomic();
|
||||
clear_bit(NFS_INO_LAYOUTSTATS, &nfsi->flags);
|
||||
smp_mb__after_atomic();
|
||||
goto out;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pnfs_report_layoutstat);
|
||||
#endif
|
||||
|
||||
@ -178,6 +178,8 @@ struct pnfs_layoutdriver_type {
|
||||
void (*encode_layoutcommit) (struct pnfs_layout_hdr *lo,
|
||||
struct xdr_stream *xdr,
|
||||
const struct nfs4_layoutcommit_args *args);
|
||||
int (*prepare_layoutstats) (struct nfs42_layoutstat_args *args);
|
||||
void (*cleanup_layoutstats) (struct nfs42_layoutstat_data *data);
|
||||
};
|
||||
|
||||
struct pnfs_layout_hdr {
|
||||
@ -290,7 +292,6 @@ int pnfs_write_done_resend_to_mds(struct nfs_pgio_header *);
|
||||
struct nfs4_threshold *pnfs_mdsthreshold_alloc(void);
|
||||
void pnfs_error_mark_layout_for_return(struct inode *inode,
|
||||
struct pnfs_layout_segment *lseg);
|
||||
|
||||
/* nfs4_deviceid_flags */
|
||||
enum {
|
||||
NFS_DEVICEID_INVALID = 0, /* set when MDS clientid recalled */
|
||||
@ -689,4 +690,14 @@ static inline void nfs4_pnfs_v3_ds_connect_unload(void)
|
||||
|
||||
#endif /* CONFIG_NFS_V4_1 */
|
||||
|
||||
#if IS_ENABLED(CONFIG_NFS_V4_2)
|
||||
int pnfs_report_layoutstat(struct inode *inode);
|
||||
#else
|
||||
static inline int
|
||||
pnfs_report_layoutstat(struct inode *inode)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* FS_NFS_PNFS_H */
|
||||
|
||||
@ -500,6 +500,7 @@ enum {
|
||||
NFSPROC4_CLNT_SEEK,
|
||||
NFSPROC4_CLNT_ALLOCATE,
|
||||
NFSPROC4_CLNT_DEALLOCATE,
|
||||
NFSPROC4_CLNT_LAYOUTSTATS,
|
||||
};
|
||||
|
||||
/* nfs41 types */
|
||||
|
||||
@ -219,6 +219,7 @@ struct nfs_inode {
|
||||
#define NFS_INO_COMMIT (7) /* inode is committing unstable writes */
|
||||
#define NFS_INO_LAYOUTCOMMIT (9) /* layoutcommit required */
|
||||
#define NFS_INO_LAYOUTCOMMITTING (10) /* layoutcommit inflight */
|
||||
#define NFS_INO_LAYOUTSTATS (11) /* layoutstats inflight */
|
||||
|
||||
static inline struct nfs_inode *NFS_I(const struct inode *inode)
|
||||
{
|
||||
|
||||
@ -316,6 +316,49 @@ struct nfs4_layoutreturn {
|
||||
int rpc_status;
|
||||
};
|
||||
|
||||
#define PNFS_LAYOUTSTATS_MAXSIZE 256
|
||||
|
||||
struct nfs42_layoutstat_args;
|
||||
struct nfs42_layoutstat_devinfo;
|
||||
typedef void (*layoutstats_encode_t)(struct xdr_stream *,
|
||||
struct nfs42_layoutstat_args *,
|
||||
struct nfs42_layoutstat_devinfo *);
|
||||
|
||||
/* Per file per deviceid layoutstats */
|
||||
struct nfs42_layoutstat_devinfo {
|
||||
struct nfs4_deviceid dev_id;
|
||||
__u64 offset;
|
||||
__u64 length;
|
||||
__u64 read_count;
|
||||
__u64 read_bytes;
|
||||
__u64 write_count;
|
||||
__u64 write_bytes;
|
||||
__u32 layout_type;
|
||||
layoutstats_encode_t layoutstats_encode;
|
||||
void *layout_private;
|
||||
};
|
||||
|
||||
struct nfs42_layoutstat_args {
|
||||
struct nfs4_sequence_args seq_args;
|
||||
struct nfs_fh *fh;
|
||||
struct inode *inode;
|
||||
nfs4_stateid stateid;
|
||||
int num_dev;
|
||||
struct nfs42_layoutstat_devinfo *devinfo;
|
||||
};
|
||||
|
||||
struct nfs42_layoutstat_res {
|
||||
struct nfs4_sequence_res seq_res;
|
||||
int num_dev;
|
||||
int rpc_status;
|
||||
};
|
||||
|
||||
struct nfs42_layoutstat_data {
|
||||
struct inode *inode;
|
||||
struct nfs42_layoutstat_args args;
|
||||
struct nfs42_layoutstat_res res;
|
||||
};
|
||||
|
||||
struct stateowner_id {
|
||||
__u64 create_time;
|
||||
__u32 uniquifier;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user