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authorBaoquan He <bhe@redhat.com>2024-03-25 22:56:46 +0800
committerAndrew Morton <akpm@linux-foundation.org>2024-04-25 20:56:11 -0700
commit0b52663f7547520fbf54e2c07f61f8bd1b5cb6eb (patch)
treecbe0ca02f35dc25f3cf07b63d05e49060cdb0b89 /mm/mm_init.c
parent90e796e22e35af0d19874c36fa4a22709aec1659 (diff)
mm/mm_init.c: remove arch_reserved_kernel_pages()
Since the current calculation of calc_nr_kernel_pages() has taken into consideration of kernel reserved memory, no need to have arch_reserved_kernel_pages() any more. Link: https://lkml.kernel.org/r/20240325145646.1044760-7-bhe@redhat.com Signed-off-by: Baoquan He <bhe@redhat.com> Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/mm_init.c')
-rw-r--r--mm/mm_init.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/mm/mm_init.c b/mm/mm_init.c
index 8c261572ca6e..0d32bcc301e2 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -2374,17 +2374,6 @@ void __init page_alloc_init_late(void)
page_alloc_sysctl_init();
}
-#ifndef __HAVE_ARCH_RESERVED_KERNEL_PAGES
-/*
- * Returns the number of pages that arch has reserved but
- * is not known to alloc_large_system_hash().
- */
-static unsigned long __init arch_reserved_kernel_pages(void)
-{
- return 0;
-}
-#endif
-
/*
* Adaptive scale is meant to reduce sizes of hash tables on large memory
* machines. As memory size is increased the scale is also increased but at
@@ -2427,7 +2416,6 @@ void *__init alloc_large_system_hash(const char *tablename,
if (!numentries) {
/* round applicable memory size up to nearest megabyte */
numentries = nr_kernel_pages;
- numentries -= arch_reserved_kernel_pages();
/* It isn't necessary when PAGE_SIZE >= 1MB */
if (PAGE_SIZE < SZ_1M)