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-rw-r--r--doc/tutorial/inode-watch.stp13
1 files changed, 13 insertions, 0 deletions
diff --git a/doc/tutorial/inode-watch.stp b/doc/tutorial/inode-watch.stp
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index 00000000..caf04b9a
--- /dev/null
+++ b/doc/tutorial/inode-watch.stp
@@ -0,0 +1,13 @@
+probe kernel.function ("vfs_write"),
+ kernel.function ("vfs_read")
+{
+ dev_nr = $file->f_dentry->d_inode->i_sb->s_dev
+ inode_nr = $file->f_dentry->d_inode->i_ino
+
+ if (dev_nr == ($1 << 20 | $2) # major/minor device
+ && inode_nr == $3)
+ printf ("%s(%d) %s 0x%x/%u\n",
+ execname(), pid(), probefunc(), dev_nr, inode_nr)
+}
+
+# dev_name = kernel_string ($file->f_dentry->d_inode->i_sb->s_id)