[PATCH v1 4/7] NFS: Convert NFS fscache enable/disable dfprintks to tracepoints

[Dave Wysochanski <dwysocha@redhat.com>]

Convert the enable / disable NFS fscache dfprintks to tracepoints.
Utilize the existing NFS inode trace event class, which allows us
to keep the same output format to other NFS inode tracepoints.

Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
---
 fs/nfs/fscache.c  | 5 +++--
 fs/nfs/nfstrace.h | 2 ++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/fscache.c b/fs/nfs/fscache.c
index 8f17fda5b8c9..a2b517846787 100644
--- a/fs/nfs/fscache.c
+++ b/fs/nfs/fscache.c
@@ -19,6 +19,7 @@
 #include "internal.h"
 #include "iostat.h"
 #include "fscache.h"
+#include "nfstrace.h"
 
 #define NFSDBG_FACILITY		NFSDBG_FSCACHE
 
@@ -314,11 +315,11 @@ void nfs_fscache_open_file(struct inode *inode, struct file *filp)
 	nfs_fscache_update_auxdata(&auxdata, inode);
 
 	if (inode_is_open_for_write(inode)) {
-		dfprintk(FSCACHE, "NFS: nfsi 0x%p disabling cache\n", nfsi);
+		trace_nfs_disable_fscache_inode(inode);
 		clear_bit(NFS_INO_FSCACHE, &nfsi->flags);
 		fscache_disable_cookie(cookie, &auxdata, true);
 	} else {
-		dfprintk(FSCACHE, "NFS: nfsi 0x%p enabling cache\n", nfsi);
+		trace_nfs_enable_fscache_inode(inode);
 		fscache_enable_cookie(cookie, &auxdata, i_size_read(inode),
 				      nfs_fscache_can_enable, inode);
 		if (fscache_cookie_enabled(cookie))
diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h
index 8a224871be74..b4177f57f69b 100644
--- a/fs/nfs/nfstrace.h
+++ b/fs/nfs/nfstrace.h
@@ -209,6 +209,8 @@
 DEFINE_NFS_INODE_EVENT(nfs_fsync_enter);
 DEFINE_NFS_INODE_EVENT_DONE(nfs_fsync_exit);
 DEFINE_NFS_INODE_EVENT(nfs_access_enter);
+DEFINE_NFS_INODE_EVENT(nfs_enable_fscache_inode);
+DEFINE_NFS_INODE_EVENT(nfs_disable_fscache_inode);
 
 TRACE_EVENT(nfs_access_exit,
 		TP_PROTO(
-- 
1.8.3.1