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-rw-r--r--gnu/system.scm17
1 files changed, 4 insertions, 13 deletions
diff --git a/gnu/system.scm b/gnu/system.scm
index e1ed1a2f19..731f9de55f 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -250,23 +250,14 @@ as 'needed-for-boot'."
(define (operating-system-user-mapped-devices os)
"Return the subset of mapped devices that can be installed in
user-land--i.e., those not needed during boot."
- (let ((devices (operating-system-mapped-devices os))
- (file-systems (operating-system-file-systems os)))
- (filter (lambda (md)
- (let ((user (mapped-device-user md file-systems)))
- (or (not user)
- (not (file-system-needed-for-boot? user)))))
- devices)))
+ (remove mapped-device-needed-for-boot?
+ (operating-system-mapped-devices os)))
(define (operating-system-boot-mapped-devices os)
"Return the subset of mapped devices that must be installed during boot,
from the initrd."
- (let ((devices (operating-system-mapped-devices os))
- (file-systems (operating-system-file-systems os)))
- (filter (lambda (md)
- (let ((user (mapped-device-user md file-systems)))
- (and user (file-system-needed-for-boot? user))))
- devices)))
+ (filter mapped-device-needed-for-boot?
+ (operating-system-mapped-devices os)))
(define (device-mapping-services os)
"Return the list of device-mapping services for OS as a monadic list."