Add a no-atime flag to the file-system flags parameter and updates the
relevant documentation.
I believe these changes in the documentation give readers a starting
point for how to understand flags vs options, as well as indicate that
the reference is complete (that there isn't a separate reference with
more flags listed somewhere).
>From e7dcba4a76d624470d05172390dde8151fdb4750 Mon Sep 17 00:00:00 2001
From: rendaw <>
Date: Mon, 29 Apr 2019 01:00:17 +0900
Subject: [PATCH] [bug #35475] [PATCH] Add filesystem flag NOATIME
Add a no-atime flag to the file-system flags parameter and updates the relevant documentation.
---
doc/guix.texi | 11 +++++++----
gnu/build/file-systems.scm | 2 ++
guix/build/syscalls.scm | 2 ++
3 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/doc/guix.texi b/doc/guix.texi
index 879cb562e9..8b89bdec53 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -10726,13 +10726,16 @@ the system knows that mounting the file system depends on having the
corresponding device mapping established.
@item @code{flags} (default: @code{'()})
-This is a list of symbols denoting mount flags. Recognized flags
-include @code{read-only}, @code{bind-mount}, @code{no-dev} (disallow
+This is a list of symbols denoting general mount flags. Recognized flags
+are @code{read-only}, @code{bind-mount}, @code{no-dev} (disallow
access to special files), @code{no-suid} (ignore setuid and setgid
-bits), and @code{no-exec} (disallow program execution.)
+bits), @code{no-exec} (disallow program execution), and @code{no-atime}.
+See @code{man 2 mount} for details.
@item @code{options} (default: @code{#f})
-This is either @code{#f}, or a string denoting mount options.
+This is either @code{#f}, or a string denoting filesystem-specific mount
+options passed to the filesystem driver. See @code{man 2 mount} for details
+and @code{man 8 mount} for options for various filesystems.
@item @code{mount?} (default: @code{#t})
This value indicates whether to automatically mount the file system when
diff --git a/gnu/build/file-systems.scm b/gnu/build/file-systems.scm
index c468144170..8bb10d574d 100644
--- a/gnu/build/file-systems.scm
+++ b/gnu/build/file-systems.scm
@@ -575,6 +575,8 @@ corresponds to the symbols listed in FLAGS."
(logior MS_NODEV (loop rest)))
(('no-exec rest ...)
(logior MS_NOEXEC (loop rest)))
+ (('no-atime rest ...)
+ (logior MS_NOATIME (loop rest)))
(()
0))))
diff --git a/guix/build/syscalls.scm b/guix/build/syscalls.scm
index 66d63a2931..3316dc8dc5 100644
--- a/guix/build/syscalls.scm
+++ b/guix/build/syscalls.scm
@@ -39,6 +39,7 @@
MS_NODEV
MS_NOEXEC
MS_REMOUNT
+ MS_NOATIME
MS_BIND
MS_MOVE
MS_STRICTATIME
@@ -451,6 +452,7 @@ the returned procedure is called."
(define MS_NODEV 4)
(define MS_NOEXEC 8)
(define MS_REMOUNT 32)
+(define MS_NOATIME 1024)
(define MS_BIND 4096)
(define MS_MOVE 8192)
(define MS_STRICTATIME 16777216)
--
2.21.0
