Ryan Roberts fba396b799 sparc/mm: avoid calling arch_enter/leave_lazy_mmu() in set_ptes ... commit eb61ad14c4 upstream. With commit 1a10a44dfc ("sparc64: implement the new page table range API") set_ptes was added to the sparc architecture. The implementation included calling arch_enter/leave_lazy_mmu() calls. The patch removes the usage of arch_enter/leave_lazy_mmu() since this implies nesting of lazy mmu regions which is not supported. Without this fix, lazy mmu mode is effectively disabled because we exit the mode after the first set_ptes: remap_pte_range() -> arch_enter_lazy_mmu() -> set_ptes() -> arch_enter_lazy_mmu() -> arch_leave_lazy_mmu() -> arch_leave_lazy_mmu() Powerpc suffered the same problem and fixed it in a corresponding way with commit 47b8def935 ("powerpc/mm: Avoid calling arch_enter/leave_lazy_mmu() in set_ptes"). Link: https://lkml.kernel.org/r/20250303141542.3371656-5-ryan.roberts@arm.com Fixes: 1a10a44dfc ("sparc64: implement the new page table range API") Signed-off-by: Ryan Roberts <ryan.roberts@arm.com> Acked-by: David Hildenbrand <david@redhat.com> Acked-by: Andreas Larsson <andreas@gaisler.com> Acked-by: Juergen Gross <jgross@suse.com> Cc: Borislav Betkov <bp@alien8.de> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Juegren Gross <jgross@suse.com> Cc: Matthew Wilcow (Oracle) <willy@infradead.org> Cc: Thomas Gleinxer <tglx@linutronix.de> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-04-20 10:15:48 +02:00
..
boot	kbuild: Abort make on install failures	2024-07-20 13:34:54 +09:00
configs
crypto	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
include	sparc/mm: avoid calling arch_enter/leave_lazy_mmu() in set_ptes	2025-04-20 10:15:48 +02:00
kernel	mm: make arch_get_unmapped_area() take vm_flags by default	2024-09-09 16:39:13 -07:00
lib	sparc32: add __cmpxchg_u{8,16}() and teach __cmpxchg() to handle those sizes	2024-04-09 22:06:00 -07:00
math-emu
mm	sparc/mm: disable preemption in lazy mmu mode	2025-04-20 10:15:48 +02:00
net	Modules changes for v6.10-rc1	2024-05-15 14:05:08 -07:00
power	sparc64: Fix prototype warnings in hibernate.c	2024-07-11 15:58:28 +02:00
prom	sparc64: Fix prototype warning for prom_get_mmu_ihandle	2024-07-11 15:58:28 +02:00
vdso	This includes the following changes related to sparc for v6.10:	2024-05-23 12:22:20 -07:00
video	arch: Fix name collision with ACPI's video.o	2024-05-20 21:17:06 +00:00
Kbuild
Kconfig	dma-mapping: clearly mark DMA ops as an architecture feature	2024-09-04 07:08:51 +03:00
Kconfig.debug	sparc: select FRAME_POINTER instead of redefining it	2024-02-16 16:50:26 +01:00
Makefile	arch: Select fbdev helpers with CONFIG_VIDEO	2024-05-03 17:07:50 +02:00