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-rw-r--r--tools/include/linux/err.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/include/linux/err.h b/tools/include/linux/err.h
index 2f5a12b88a86..25f2bb3a991d 100644
--- a/tools/include/linux/err.h
+++ b/tools/include/linux/err.h
@@ -20,7 +20,7 @@
* Userspace note:
* The same principle works for userspace, because 'error' pointers
* fall down to the unused hole far from user space, as described
- * in Documentation/x86/x86_64/mm.txt for x86_64 arch:
+ * in Documentation/x86/x86_64/mm.rst for x86_64 arch:
*
* 0000000000000000 - 00007fffffffffff (=47 bits) user space, different per mm hole caused by [48:63] sign extension
* ffffffffffe00000 - ffffffffffffffff (=2 MB) unused hole