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| author | Mike Rapoport (IBM) <rppt@kernel.org> | 2023-03-21 19:05:09 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-04-05 19:42:54 -0700 |
| commit | de57807e6f267a658a046dbca44dc40fe806d60f (patch) | |
| tree | a5d1576cafd48265fa836df0168e8ed1aa5a39f8 /mm/mm_init.c | |
| parent | f2fc4b44ec2bb94c51c7ae1af9b1177d72705992 (diff) | |
| download | lwn-de57807e6f267a658a046dbca44dc40fe806d60f.tar.gz lwn-de57807e6f267a658a046dbca44dc40fe806d60f.zip | |
init,mm: fold late call to page_ext_init() to page_alloc_init_late()
When deferred initialization of struct pages is enabled, page_ext_init()
must be called after all the deferred initialization is done, but there is
no point to keep it a separate call from kernel_init_freeable() right
after page_alloc_init_late().
Fold the call to page_ext_init() into page_alloc_init_late() and localize
deferred_struct_pages variable.
Link: https://lkml.kernel.org/r/20230321170513.2401534-11-rppt@kernel.org
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Doug Berger <opendmb@gmail.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/mm_init.c')
| -rw-r--r-- | mm/mm_init.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/mm/mm_init.c b/mm/mm_init.c index 43f6d3ed24ef..ff70da11e797 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -225,7 +225,7 @@ static unsigned long nr_kernel_pages __initdata; static unsigned long nr_all_pages __initdata; static unsigned long dma_reserve __initdata; -bool deferred_struct_pages __meminitdata; +static bool deferred_struct_pages __meminitdata; static DEFINE_PER_CPU(struct per_cpu_nodestat, boot_nodestats); @@ -2358,6 +2358,10 @@ void __init page_alloc_init_late(void) for_each_populated_zone(zone) set_zone_contiguous(zone); + + /* Initialize page ext after all struct pages are initialized. */ + if (deferred_struct_pages) + page_ext_init(); } #ifndef __HAVE_ARCH_RESERVED_KERNEL_PAGES |