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authorJosselin Poiret <dev@jpoiret.xyz>2022-05-24 19:16:30 +0200
committerMaxim Cournoyer <maxim.cournoyer@gmail.com>2022-06-11 00:57:13 -0400
commita99015c8783eb5281618173779a0550b15a79617 (patch)
treedc864e12cf173c276df2f3d1de71156eaf88aeb7 /gnu/services
parent8649ac5eaa0447a766b18550787b60639e57a7fb (diff)
downloadguix-a99015c8783eb5281618173779a0550b15a79617.tar
guix-a99015c8783eb5281618173779a0550b15a79617.tar.gz
system: Align zram priority with swap-space spec to clarify.
Fixes <https://issues.guix.gnu.org/54783>. * gnu/services/linux.scm (zram-device-configuration) [priority]: Adapt to use #f or an integer from 0 to 32767. Add sanitizer to warn for the change and delay the field. (zram-device-configuration->udev-string): Adapt as above. * doc/guix.texi (Zram Device Service): Remove double copyright line. Change priority description to refer to the Swap Space one, and suggest not leaving the default #f on to properly use zram. Reported-by: Stefan Baums <baums@stefanbaums.com> Modified-by: Maxim Cournoyer <maxim.cournoyer@gmail.com> Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Diffstat (limited to 'gnu/services')
-rw-r--r--gnu/services/linux.scm29
1 files changed, 25 insertions, 4 deletions
diff --git a/gnu/services/linux.scm b/gnu/services/linux.scm
index 2eb02ac5a3..60e2093e1d 100644
--- a/gnu/services/linux.scm
+++ b/gnu/services/linux.scm
@@ -4,6 +4,7 @@
;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2021 raid5atemyhomework <raid5atemyhomework@protonmail.com>
;;; Copyright © 2021 B. Wilson <elaexuotee@wilsonb.com>
+;;; Copyright © 2022 Josselin Poiret <dev@jpoiret.xyz>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -21,9 +22,12 @@
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu services linux)
+ #:use-module (guix diagnostics)
#:use-module (guix gexp)
#:use-module (guix records)
#:use-module (guix modules)
+ #:use-module (guix i18n)
+ #:use-module (guix ui)
#:use-module (gnu services)
#:use-module (gnu services base)
#:use-module (gnu services shepherd)
@@ -252,7 +256,21 @@ representation."
(memory-limit zram-device-configuration-memory-limit
(default 0)) ; string or integer
(priority zram-device-configuration-priority
- (default -1))) ; integer
+ (default #f) ; integer | #f
+ (delayed) ; to avoid printing the deprecation
+ ; warning multiple times
+ (sanitize warn-zram-priority-change)))
+
+(define-with-syntax-properties
+ (warn-zram-priority-change (priority properties))
+ (if (eqv? priority -1)
+ (begin
+ (warning (source-properties->location properties)
+ (G_ "using -1 for zram priority is deprecated~%"))
+ (display-hint (G_ "Use #f or leave as default instead (@pxref{Linux \
+Services})."))
+ #f)
+ priority))
(define (zram-device-configuration->udev-string config)
"Translate a <zram-device-configuration> into a string which can be
@@ -278,9 +296,12 @@ placed in a udev rules file."
"")
"RUN+=\"/run/current-system/profile/sbin/mkswap /dev/zram0\" "
"RUN+=\"/run/current-system/profile/sbin/swapon "
- (if (not (equal? -1 priority))
- (string-append "--priority " (number->string priority) " ")
- "")
+ ;; TODO: Revert to simply use 'priority' after removing the deprecation
+ ;; warning and the delayed property of the field.
+ (let ((priority* (force priority)))
+ (if priority*
+ (format #f "--priority ~a " priority*)
+ ""))
"/dev/zram0\"\n"))))
(define %zram-device-config