David Hildenbrand 83d3b2b46e mips/mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE ... Let's support __HAVE_ARCH_PTE_SWP_EXCLUSIVE. On 64bit, steal one bit from the type. Generic MM currently only uses 5 bits for the type (MAX_SWAPFILES_SHIFT), so the stolen bit is effectively unused. On 32bit we're able to locate unused bits. As the PTE layout for 32 bit is very confusing, document it a bit better. While at it, mask the type in __swp_entry()/mk_swap_pte(). Link: https://lkml.kernel.org/r/20230113171026.582290-13-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2023-02-02 22:33:08 -08:00
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asm	mips/mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE	2023-02-02 22:33:08 -08:00
uapi/asm	mm/madvise: introduce MADV_COLLAPSE sync hugepage collapse	2022-09-11 20:25:46 -07:00