nfs: add new tracepoint at nfs4 revalidate entry point

Add a call to the v4 d_revalidate entrypoint, just like the v3 one.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 273c0b68abf4422998eb61a8117dae38279b2b26..c8ecbe99905960ccd63b7128f273fc38543d876d 100644 (file)
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -2194,6 +2194,8 @@ nfs4_do_lookup_revalidate(struct inode *dir, struct dentry *dentry,
 {
        struct inode *inode;
 
+       trace_nfs_lookup_revalidate_enter(dir, dentry, flags);
+
        if (!(flags & LOOKUP_OPEN) || (flags & LOOKUP_DIRECTORY))
                goto full_reval;
        if (d_mountpoint(dentry))