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authorTrond Myklebust <Trond.Myklebust@netapp.com>2013-08-15 00:36:51 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-08-22 16:58:26 +0400
commit1037e6eaa37a42cec877f103c091cfe5304f4450 (patch)
tree6489ce3781968ac0cc0f6b48180ce726ab49df86 /fs
parentcc668ab30b8a5505c1651b073882c1a67c802a48 (diff)
downloadlinux-1037e6eaa37a42cec877f103c091cfe5304f4450.tar.xz
NFSv4.1: Add tracepoints for debugging layoutget/return/commit
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/nfs4proc.c6
-rw-r--r--fs/nfs/nfs4trace.h55
2 files changed, 61 insertions, 0 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 214f9c4fdeee..c8b5ff6effe9 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -6860,6 +6860,10 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags)
status = nfs4_wait_for_completion_rpc_task(task);
if (status == 0)
status = task->tk_status;
+ trace_nfs4_layoutget(lgp->args.ctx,
+ &lgp->args.range,
+ &lgp->res.range,
+ status);
/* if layoutp->len is 0, nfs4_layoutget_prepare called rpc_exit */
if (status == 0 && lgp->res.layoutp->len)
lseg = pnfs_layout_process(lgp);
@@ -6945,6 +6949,7 @@ int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp)
if (IS_ERR(task))
return PTR_ERR(task);
status = task->tk_status;
+ trace_nfs4_layoutreturn(lrp->args.inode, status);
dprintk("<-- %s status=%d\n", __func__, status);
rpc_put_task(task);
return status;
@@ -7131,6 +7136,7 @@ nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, bool sync)
if (status != 0)
goto out;
status = task->tk_status;
+ trace_nfs4_layoutcommit(data->args.inode, status);
out:
dprintk("%s: status %d\n", __func__, status);
rpc_put_task(task);
diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index 1ea69836443f..b2a2d8a30c66 100644
--- a/fs/nfs/nfs4trace.h
+++ b/fs/nfs/nfs4trace.h
@@ -894,6 +894,61 @@ DECLARE_EVENT_CLASS(nfs4_commit_event,
DEFINE_NFS4_COMMIT_EVENT(nfs4_commit);
#ifdef CONFIG_NFS_V4_1
DEFINE_NFS4_COMMIT_EVENT(nfs4_pnfs_commit_ds);
+
+#define show_pnfs_iomode(iomode) \
+ __print_symbolic(iomode, \
+ { IOMODE_READ, "READ" }, \
+ { IOMODE_RW, "RW" }, \
+ { IOMODE_ANY, "ANY" })
+
+TRACE_EVENT(nfs4_layoutget,
+ TP_PROTO(
+ const struct nfs_open_context *ctx,
+ const struct pnfs_layout_range *args,
+ const struct pnfs_layout_range *res,
+ int error
+ ),
+
+ TP_ARGS(ctx, args, res, error),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(u32, fhandle)
+ __field(u64, fileid)
+ __field(u32, iomode)
+ __field(u64, offset)
+ __field(u64, count)
+ __field(int, error)
+ ),
+
+ TP_fast_assign(
+ const struct inode *inode = ctx->dentry->d_inode;
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->fileid = NFS_FILEID(inode);
+ __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
+ __entry->iomode = args->iomode;
+ __entry->offset = args->offset;
+ __entry->count = args->length;
+ __entry->error = error;
+ ),
+
+ TP_printk(
+ "error=%d (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
+ "iomode=%s offset=%llu count=%llu",
+ __entry->error,
+ show_nfsv4_errors(__entry->error),
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ (unsigned long long)__entry->fileid,
+ __entry->fhandle,
+ show_pnfs_iomode(__entry->iomode),
+ (unsigned long long)__entry->offset,
+ (unsigned long long)__entry->count
+ )
+);
+
+DEFINE_NFS4_INODE_EVENT(nfs4_layoutcommit);
+DEFINE_NFS4_INODE_EVENT(nfs4_layoutreturn);
+
#endif /* CONFIG_NFS_V4_1 */
#endif /* _TRACE_NFS4_H */