File: inodewatch2.stp

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systemtap 3.1-2
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#! /usr/bin/env stap

global ATTR_MODE = 1

probe kernel.{function("setattr_copy")!,
              function("generic_setattr")!,
              function("inode_setattr")} {
  dev_nr = $inode->i_sb->s_dev
  inode_nr = $inode->i_ino

  if (dev_nr == MKDEV($1,$2) # major/minor device
      && inode_nr == $3
      && $attr->ia_valid & ATTR_MODE)
    printf ("%s(%d) %s 0x%x/%u %o %d\n",
      execname(), pid(), ppfunc(), dev_nr, inode_nr, $attr->ia_mode, uid())
}