On 12 Aug 2022, at 21:11, Randy Dunlap wrote: > Hi-- > > On 8/11/22 16:16, Zi Yan wrote: > >> diff --git a/mm/Kconfig b/mm/Kconfig >> index bbe31e85afee..e558f5679707 100644 >> --- a/mm/Kconfig >> +++ b/mm/Kconfig >> @@ -441,6 +441,20 @@ config SPARSEMEM_VMEMMAP >> pfn_to_page and page_to_pfn operations. This is the most >> efficient option when sufficient kernel resources are available. >> >> +config SET_MAX_ORDER >> + int "Set maximum order of buddy allocator" >> + depends on SPARSEMEM_VMEMMAP && (ARCH_FORCE_MAX_ORDER = 0) >> + range 10 255 >> + default "10" >> + help >> + The kernel memory allocator divides physically contiguous memory >> + blocks into "zones", where each zone is a power of two number of >> + pages. This option selects the largest power of two that the kernel >> + keeps in the memory allocator. If you need to allocate very large >> + blocks of physically contiguous memory, then you may need to >> + increase this value. A value of 10 means that the largest free memory >> + block is 2^10 pages. > > Please make sure that all lines of help text are indented with one tab + 2 spaces, > as specified in Documentation/process/coding-style.rst. I guess you mean the wrong indentation of "depends on" here, since all the help text is correctly indented. Thanks. I fixed it locally. -- Best Regards, Yan, Zi
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