commit 156a7d150a20f2ce7cce0fb7144952ab9fedf6e7
author William Findlay <william@williamfindlay.com> Wed Jun 24 11:14:05 2020 -0400
committer GitHub <noreply@github.com> Wed Jun 24 08:14:05 2020 -0700
tree 835272926e2f8270871b695d7294d768469a0dc9
parent 1bddba6adefedc02fa5d6fda371a92c8fd4a3aea

Fix KFUNC_PROBE calls in vfs_stat.py by adding a return value (#2990)

 Fix KFUNC_PROBE calls in vfs_stat.py by adding a return value of 0

tools/vfsstat.py

diff --git a/tools/vfsstat.py b/tools/vfsstat.py
index e044ce5..a3d22db 100755
--- a/tools/vfsstat.py
+++ b/tools/vfsstat.py
@@ -66,11 +66,11 @@
 """
 
 bpf_text_kfunc = """
-KFUNC_PROBE(vfs_read, int unused)   { stats_increment(S_READ); }
-KFUNC_PROBE(vfs_write, int unused)  { stats_increment(S_WRITE); }
-KFUNC_PROBE(vfs_fsync, int unused)  { stats_increment(S_FSYNC); }
-KFUNC_PROBE(vfs_open, int unused)   { stats_increment(S_OPEN); }
-KFUNC_PROBE(vfs_create, int unused) { stats_increment(S_CREATE); }
+KFUNC_PROBE(vfs_read, int unused)   { stats_increment(S_READ); return 0; }
+KFUNC_PROBE(vfs_write, int unused)  { stats_increment(S_WRITE); return 0; }
+KFUNC_PROBE(vfs_fsync, int unused)  { stats_increment(S_FSYNC); return 0; }
+KFUNC_PROBE(vfs_open, int unused)   { stats_increment(S_OPEN); return 0; }
+KFUNC_PROBE(vfs_create, int unused) { stats_increment(S_CREATE); return 0; }
 """
 
 is_support_kfunc = BPF.support_kfunc()