/usr/share/systemtap/runtime/linux/autoconf-inode-rwsem.c is in systemtap-common 3.1-3ubuntu0.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | #include <linux/fs.h>
// check for 4.6 inode patch which changed i_mutex to i_rwsem
struct inode i __attribute__ ((unused)) = {.i_rwsem=__RWSEM_INITIALIZER(i.i_rwsem)};
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