From: Steven Stewart-Gallus <sstewartgallus00@xxxxxxxxxxxxxxx
This constant means that in the far future it might be possible to
define other AT_FD* constants.
Signed-off-by: Steven Stewart-Gallus <sstewartgallus00@xxxxxxxxxxxxxxx>
---
This is my first kernel patch but this is really trivial so I hope I'm doing
this right.
diff --git a/include/uapi/linux/fcntl.h b/include/uapi/linux/fcntl.h
index 074b886..92223f0 100644
--- a/include/uapi/linux/fcntl.h
+++ b/include/uapi/linux/fcntl.h
@@ -38,9 +38,15 @@
#define DN_ATTRIB 0x00000020 /* File changed attibutes */
#define DN_MULTISHOT 0x80000000 /* Don't remove notifier */
+#define AT_FDNODDIR -1 /* Special value used to indicate
+ openat should not use any directory.
+ Currently, other values work for this
+ but in the future that might
+ change. */
#define AT_FDCWD -100 /* Special value used to indicate
- openat should use the current
- working directory. */
+ openat should use the current
+ working directory. */
+
#define AT_SYMLINK_NOFOLLOW 0x100 /* Do not follow symbolic links. */
#define AT_REMOVEDIR 0x200 /* Remove directory instead of
unlinking file. */
--
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