David Hildenbrand (Arm) a71638ecc6 sparc/mm: drop custom pte_clear_not_present_full() ... Patch series "mm: cleanup clear_not_present_full_ptes()", v2. While doing some review, I stumbled over clear_not_present_full_ptes() and concluded that it needs some love. Let's remove pte_clear_not_present_full() and cleanup clear_not_present_full_ptes(), renaming it to clear_non_present_ptes(). This patch (of 3): On sparc64, pte_clear_not_present_full() nowadays does a simple __set_pte_at(). In __set_pte_at() -> maybe_tlb_batch_add(), we check pte_accessible() to see whether to call tlb_batch_add(). However, non-present PTEs are surely not accessible, so tlb_batch_add() is never called and the "full" parameter is irrelevant. Let's drop the helper and just let common code do a pte_clear(). pte_clear() on sparc64 maps to set_pte_at()->set_ptes()->__set_pte_at() ... so it ends up calling the same function, just with "full=0". Given that "full" is irrelevant, there is no change. We added pte_clear_not_present_full() for sparc64 in commit 90f08e399d ("sparc: mmu_gather rework"), and I suspect that it was already not required back then. Link: https://lore.kernel.org/20260629-clear_not_present_full_ptes-v2-0-96089871a1e7@kernel.org Link: https://lore.kernel.org/20260629-clear_not_present_full_ptes-v2-1-96089871a1e7@kernel.org Signed-off-by: David Hildenbrand (Arm) <david@kernel.org> Reviewed-by: Lance Yang <lance.yang@linux.dev> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andreas Larsson <andreas@gaisler.com> Cc: David S. Miller <davem@davemloft.net> Cc: Jann Horn <jannh@google.com> Cc: Liam R. Howlett <liam@infradead.org> Cc: Lorenzo Stoakes <ljs@kernel.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@kernel.org> Cc: Oscar Salvador (SUSE) <osalvador@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2026-07-28 21:12:09 -07:00
..
asm	sparc/mm: drop custom pte_clear_not_present_full()	2026-07-28 21:12:09 -07:00
uapi/asm	This includes the following changes related to sparc for v7.2:	2026-06-24 12:39:09 -07:00