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linux: enable kcmp() system call #113236

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Feb 18, 2021
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linux: enable kcmp() system call #113236

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7 changes: 6 additions & 1 deletion pkgs/os-specific/linux/kernel/common-config.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -637,7 +637,12 @@ let
XZ_DEC_TEST = option no;
};

criu = optionalAttrs (features.criu or false) ({
criu = if (versionAtLeast version "4.19") then {
# Unconditionally enabled, because it is required for CRIU and
# it provides the kcmp() system call that Mesa depends on.
CHECKPOINT_RESTORE = yes;
} else optionalAttrs (features.criu or false) ({
# For older kernels, CHECKPOINT_RESTORE is hidden behind EXPERT.
EXPERT = yes;
CHECKPOINT_RESTORE = yes;
} // optionalAttrs (features.criu_revert_expert or true) {
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