diff options
| author | David Hildenbrand <[email protected]> | 2023-01-13 18:10:17 +0100 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2023-02-02 22:33:09 -0800 |
| commit | 8897ebff37fd34920d380cbfafbfb47804eb4009 (patch) | |
| tree | 0cc5a33982f4eeb648bcacffcdacdc56c389ccf0 /arch/riscv/include/asm/pgtable-bits.h | |
| parent | 6d239fc78c0b0c687e5408573350714e6e789d71 (diff) | |
powerpc/mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE on 32bit book3s
We already implemented support for 64bit book3s in commit bff9beaa2e80
("powerpc/pgtable: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE for book3s")
Let's support __HAVE_ARCH_PTE_SWP_EXCLUSIVE also in 32bit by reusing yet
unused LSB 2 / MSB 29. There seems to be no real reason why that bit
cannot be used, and reusing it avoids having to steal one bit from the
swap offset.
While at it, mask the type in __swp_entry().
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: David Hildenbrand <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Christophe Leroy <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'arch/riscv/include/asm/pgtable-bits.h')
0 files changed, 0 insertions, 0 deletions