[PATCH] NFS: add new nfs3 acl tracepoint events

[Chen Hanxiao <chenhx.fnst@xxxxxxxxxxx>]

Add some new tracepoints to the NFSv3 acl events

Signed-off-by: Chen Hanxiao <chenhx.fnst@xxxxxxxxxxx>
---
 fs/nfs/nfs3acl.c  |  3 +++
 fs/nfs/nfstrace.c |  2 ++
 fs/nfs/nfstrace.h | 39 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 44 insertions(+)

diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
index 18d8f6529f61..5c5c1e1c07f8 100644
--- a/fs/nfs/nfs3acl.c
+++ b/fs/nfs/nfs3acl.c
@@ -9,6 +9,7 @@
 
 #include "internal.h"
 #include "nfs3_fs.h"
+#include "nfstrace.h"
 
 #define NFSDBG_FACILITY	NFSDBG_PROC
 
@@ -96,6 +97,7 @@ struct posix_acl *nfs3_get_acl(struct inode *inode, int type, bool rcu)
 		nfs3_prepare_get_acl(&inode->i_default_acl);
 
 	status = rpc_call_sync(server->client_acl, &msg, 0);
+	trace_nfs3_get_acl(inode, status);
 	dprintk("NFS reply getacl: %d\n", status);
 
 	/* pages may have been allocated at the xdr layer. */
@@ -287,6 +289,7 @@ int nfs3_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
 		acl = alloc;
 	}
 	status = __nfs3_proc_setacls(inode, acl, dfacl);
+	trace_nfs3_set_acl(inode, status);
 out:
 	if (acl != orig)
 		posix_acl_release(acl);
diff --git a/fs/nfs/nfstrace.c b/fs/nfs/nfstrace.c
index 5d1bfccbb4da..c6cf133b8853 100644
--- a/fs/nfs/nfstrace.c
+++ b/fs/nfs/nfstrace.c
@@ -13,3 +13,5 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_fsync_enter);
 EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_fsync_exit);
 EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_xdr_status);
 EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_xdr_bad_filehandle);
+EXPORT_TRACEPOINT_SYMBOL_GPL(nfs3_get_acl);
+EXPORT_TRACEPOINT_SYMBOL_GPL(nfs3_set_acl);
diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h
index 1e710654af11..d0d8b83c665a 100644
--- a/fs/nfs/nfstrace.h
+++ b/fs/nfs/nfstrace.h
@@ -161,6 +161,45 @@ DEFINE_NFS_INODE_EVENT(nfs_readdir_force_readdirplus);
 DEFINE_NFS_INODE_EVENT_DONE(nfs_readdir_cache_fill_done);
 DEFINE_NFS_INODE_EVENT_DONE(nfs_readdir_uncached_done);
 
+DECLARE_EVENT_CLASS(nfs3_acl_template,
+		TP_PROTO(
+			const struct inode *inode,
+			int error
+		),
+
+		TP_ARGS(inode, error),
+
+		TP_STRUCT__entry(
+			__field(dev_t, dev)
+			__field(u32, fhandle)
+			__field(u64, fileid)
+			__field(unsigned long, error)
+		),
+
+		TP_fast_assign(
+			__entry->dev = inode->i_sb->s_dev;
+			__entry->fileid = NFS_FILEID(inode);
+			__entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
+			__entry->error = error < 0 ? -error : 0;
+		),
+
+		TP_printk(
+			"error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x",
+			-__entry->error,
+			show_nfs4_status(__entry->error),
+			MAJOR(__entry->dev), MINOR(__entry->dev),
+			(unsigned long long)__entry->fileid,
+			__entry->fhandle
+		)
+);
+
+DEFINE_EVENT(nfs3_acl_template, nfs3_get_acl,
+		TP_PROTO(const struct inode *inode, int error),
+		TP_ARGS(inode, error));
+DEFINE_EVENT(nfs3_acl_template, nfs3_set_acl,
+		TP_PROTO(const struct inode *inode, int error),
+		TP_ARGS(inode, error));
+
 TRACE_EVENT(nfs_access_exit,
 		TP_PROTO(
 			const struct inode *inode,
-- 
2.39.1