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Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
This commit is contained in:
Tianling Shen
2026-07-09 10:32:05 +08:00
parent f7f75e163b b519bc3b76
commit 4cafb73e88
890 changed files with 314050 additions and 4084 deletions
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config/Config-kernel.in
+48 -5
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@@ -107,6 +107,17 @@ config KERNEL_PERF_EVENTS
select KERNEL_ARM_PMUV3 if (arm_v7 || aarch64)
select KERNEL_RISCV_PMU if riscv64
config KERNEL_ARM64_BRBE
bool "Enable support for branch stack sampling using FEAT_BRBE"
default y
depends on KERNEL_PERF_EVENTS && aarch64
help
Enable perf support for Branch Record Buffer Extension (BRBE) which
records all branches taken in an execution path. This supports some
branch types and privilege based filtering. It captures additional
relevant information such as cycle count, misprediction and branch
type, branch privilege level etc.
config KERNEL_PROFILING
bool "Compile the kernel with profiling enabled"
select KERNEL_PERF_EVENTS
@@ -714,9 +725,46 @@ config KERNEL_FANOTIFY
config KERNEL_BLK_DEV_BSG
bool "Compile the kernel with SCSI generic v4 support for any block device"
config KERNEL_HUGETLB_PAGE
bool "Compile the kernel with HugeTLB support"
select KERNEL_TRANSPARENT_HUGEPAGE
select KERNEL_HUGETLBFS
config KERNEL_TRANSPARENT_HUGEPAGE
bool
config KERNEL_PERSISTENT_HUGE_ZERO_FOLIO
bool "Allocate a PMD sized folio for zeroing"
depends on KERNEL_TRANSPARENT_HUGEPAGE
default n
help
Enable this option to reduce the runtime refcounting overhead
of the huge zero folio and expand the places in the kernel
that can use huge zero folios. For instance, block I/O benefits
from access to large folios for zeroing memory.
With this option enabled, the huge zero folio is allocated
once and never freed. One full huge page's worth of memory shall
be used.
Say Y if your system has lots of memory. Say N if you are
memory constrained.
config KERNEL_NO_PAGE_MAPCOUNT
bool "No per-page mapcount (EXPERIMENTAL)"
depends on KERNEL_TRANSPARENT_HUGEPAGE
default n
help
Do not maintain per-page mapcounts for pages part of larger
allocations, such as transparent huge pages.
When this config option is enabled, some interfaces that relied on
this information will rely on less-precise per-allocation information
instead: for example, using the average per-page mapcount in such
a large allocation instead of the per-page mapcount.
EXPERIMENTAL because the impact of some changes is still unclear.
choice
prompt "Transparent Hugepage Support sysfs defaults"
depends on KERNEL_TRANSPARENT_HUGEPAGE
@@ -741,11 +789,6 @@ config KERNEL_ARM64_CONTPTE
config KERNEL_HUGETLBFS
bool
config KERNEL_HUGETLB_PAGE
bool "Compile the kernel with HugeTLB support"
select KERNEL_TRANSPARENT_HUGEPAGE
select KERNEL_HUGETLBFS
config KERNEL_MAGIC_SYSRQ
bool "Compile the kernel with SysRq support"
default y