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| author | Mike Rapoport <rppt@linux.ibm.com> | 2021-06-29 04:42:52 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-29 19:53:55 +0200 |
| commit | bb1c50d3967f69f413b333713c2718d48d1ab7ea (patch) | |
| tree | 4bf2317dd231ae254acbf988e7c3867d87dca353 /mm/page_alloc.c | |
| parent | m68k: remove support for DISCONTIGMEM (diff) | |
| download | linux-bb1c50d3967f69f413b333713c2718d48d1ab7ea.tar.xz linux-bb1c50d3967f69f413b333713c2718d48d1ab7ea.zip | |
mm: remove CONFIG_DISCONTIGMEM
There are no architectures that support DISCONTIGMEM left.
Remove the configuration option and the dead code it was guarding in the
generic memory management code.
Link: https://lkml.kernel.org/r/20210608091316.3622-6-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | mm/page_alloc.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 58f7a321598f..8926f3fd3bcf 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -349,20 +349,7 @@ compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS] = { int min_free_kbytes = 1024; int user_min_free_kbytes = -1; -#ifdef CONFIG_DISCONTIGMEM -/* - * DiscontigMem defines memory ranges as separate pg_data_t even if the ranges - * are not on separate NUMA nodes. Functionally this works but with - * watermark_boost_factor, it can reclaim prematurely as the ranges can be - * quite small. By default, do not boost watermarks on discontigmem as in - * many cases very high-order allocations like THP are likely to be - * unsupported and the premature reclaim offsets the advantage of long-term - * fragmentation avoidance. - */ -int watermark_boost_factor __read_mostly; -#else int watermark_boost_factor __read_mostly = 15000; -#endif int watermark_scale_factor = 10; static unsigned long nr_kernel_pages __initdata; |