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pNFS: Modify pnfs_update_layout tracepoints to use layout stateid

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Instead of displaying a layout segment pointer in these tracepoints,
let's use the layout stateid, now that Olga gave us a set of tools for
displaying them.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust
2015-12-26 18:03:07 -05:00
parent f2dd436edb
commit f4848303ce
3 changed files with 28 additions and 16 deletions
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23
fs/nfs/nfs4trace.h
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@@ -1461,10 +1461,10 @@ TRACE_EVENT(pnfs_update_layout,
loff_t pos,
u64 count,
enum pnfs_iomode iomode,
struct pnfs_layout_segment *lseg,
struct pnfs_layout_hdr *lo,
enum pnfs_update_layout_reason reason
),
TP_ARGS(inode, pos, count, iomode, lseg, reason),
TP_ARGS(inode, pos, count, iomode, lo, reason),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(u64, fileid)
@@ -1472,7 +1472,8 @@ TRACE_EVENT(pnfs_update_layout,
__field(loff_t, pos)
__field(u64, count)
__field(enum pnfs_iomode, iomode)
__field(struct pnfs_layout_segment *, lseg)
__field(int, layoutstateid_seq)
__field(u32, layoutstateid_hash)
__field(enum pnfs_update_layout_reason, reason)
),
TP_fast_assign(
@@ -1482,18 +1483,28 @@ TRACE_EVENT(pnfs_update_layout,
__entry->pos = pos;
__entry->count = count;
__entry->iomode = iomode;
__entry->lseg = lseg;
__entry->reason = reason;
if (lo != NULL) {
__entry->layoutstateid_seq =
be32_to_cpu(lo->plh_stateid.seqid);
__entry->layoutstateid_hash =
nfs_stateid_hash(&lo->plh_stateid);
} else {
__entry->layoutstateid_seq = 0;
__entry->layoutstateid_hash = 0;
}
),
TP_printk(
"fileid=%02x:%02x:%llu fhandle=0x%08x "
"iomode=%s pos=%llu count=%llu lseg=%p (%s)",
"iomode=%s pos=%llu count=%llu "
"layoutstateid=%d:0x%08x (%s)",
MAJOR(__entry->dev), MINOR(__entry->dev),
(unsigned long long)__entry->fileid,
__entry->fhandle,
show_pnfs_iomode(__entry->iomode),
(unsigned long long)__entry->pos,
(unsigned long long)__entry->count, __entry->lseg,
(unsigned long long)__entry->count,
__entry->layoutstateid_seq, __entry->layoutstateid_hash,
show_pnfs_update_layout_reason(__entry->reason)
)
);