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-rw-r--r--init/Kconfig36
1 files changed, 16 insertions, 20 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 29ad68325028..c2a18f56e944 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -524,7 +524,7 @@ config SCHED_THERMAL_PRESSURE
i.e. put less load on throttled CPUs than on non/less throttled ones.
This requires the architecture to implement
- arch_set_thermal_pressure() and arch_get_thermal_pressure().
+ arch_set_thermal_pressure() and arch_scale_thermal_pressure().
config BSD_PROCESS_ACCT
bool "BSD Process Accounting"
@@ -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
@@ -2023,7 +2034,7 @@ config PROFILING
bool "Profiling support"
help
Say Y here to enable the extended profiling support mechanisms used
- by profilers such as OProfile.
+ by profilers.
#
# Place an empty function call at each tracepoint site. Can be
@@ -2261,25 +2272,9 @@ config MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS
If unsure, say N.
-config UNUSED_SYMBOLS
- bool "Enable unused/obsolete exported symbols"
- default y if X86
- help
- Unused but exported symbols make the kernel needlessly bigger. For
- that reason most of these unused exports will soon be removed. This
- option is provided temporarily to provide a transition period in case
- some external kernel module needs one of these symbols anyway. If you
- encounter such a case in your module, consider if you are actually
- using the right API. (rationale: since nobody in the kernel is using
- this in a module, there is a pretty good chance it's actually the
- wrong interface to use). If you really need the symbol, please send a
- mail to the linux kernel mailing list mentioning the symbol and why
- you really need it, and what the merge plan to the mainline kernel for
- your module is.
-
config TRIM_UNUSED_KSYMS
- bool "Trim unused exported kernel symbols"
- depends on !UNUSED_SYMBOLS
+ bool "Trim unused exported kernel symbols" if EXPERT
+ depends on !COMPILE_TEST
help
The kernel and some modules make many symbols available for
other modules to use via EXPORT_SYMBOL() and variants. Depending
@@ -2296,6 +2291,7 @@ config TRIM_UNUSED_KSYMS
config UNUSED_KSYMS_WHITELIST
string "Whitelist of symbols to keep in ksymtab"
depends on TRIM_UNUSED_KSYMS
+ default "scripts/lto-used-symbollist.txt" if LTO_CLANG
help
By default, all unused exported symbols will be un-exported from the
build when TRIM_UNUSED_KSYMS is selected.

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