VisionFive2 Linux kernel

author: Chris Wilson <chris@chris-wilson.co.uk> 2021-02-05 22:00:12 +0000 committer: Daniel Vetter <daniel.vetter@ffwll.ch> 2021-02-16 09:59:41 +0100 commit: bfe3911a91047557eb0e620f95a370aee6a248c7 parent: f40ddce88593482919761f74910f42f4b84c004b

Commit Summary:

kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTORE

Diffstat:

1 file changed, 10 insertions, 0 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 29ad68325028..b7d3c6a12196 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1193,6 +1193,7 @@ endif # NAMESPACES
 config CHECKPOINT_RESTORE
 	bool "Checkpoint/restore support"
 	select PROC_CHILDREN
+	select KCMP
 	default n
 	help
 	  Enables additional kernel features in a sake of checkpoint/restore.
@@ -1736,6 +1737,16 @@ config ARCH_HAS_MEMBARRIER_CALLBACKS
 config ARCH_HAS_MEMBARRIER_SYNC_CORE
 	bool
 
+config KCMP
+	bool "Enable kcmp() system call" if EXPERT
+	help
+	  Enable the kernel resource comparison system call. It provides
+	  user-space with the ability to compare two processes to see if they
+	  share a common resource, such as a file descriptor or even virtual
+	  memory space.
+
+	  If unsure, say N.
+
 config RSEQ
 	bool "Enable rseq() system call" if EXPERT
 	default y