mm: Rename GUP_GET_PTE_LOW_HIGH

Since it no longer applies to only PTEs, rename it to PXX.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221022114424.776404066%40infradead.org

arch/mips/Kconfig

@@ -46,7 +46,7 @@ config MIPS
 	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_TIME_VSYSCALL
-	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
+	select GUP_GET_PXX_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
 	select HAVE_ARCH_COMPILER_H
 	select HAVE_ARCH_JUMP_LABEL
 	select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT

arch/sh/Kconfig

@@ -24,7 +24,7 @@ config SUPERH
 	select GENERIC_PCI_IOMAP if PCI
 	select GENERIC_SCHED_CLOCK
 	select GENERIC_SMP_IDLE_THREAD
-	select GUP_GET_PTE_LOW_HIGH if X2TLB
+	select GUP_GET_PXX_LOW_HIGH if X2TLB
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_SECCOMP_FILTER

arch/x86/Kconfig

@@ -157,7 +157,7 @@ config X86
 	select GENERIC_TIME_VSYSCALL
 	select GENERIC_GETTIMEOFDAY
 	select GENERIC_VDSO_TIME_NS
-	select GUP_GET_PTE_LOW_HIGH		if X86_PAE
+	select GUP_GET_PXX_LOW_HIGH		if X86_PAE
 	select HARDIRQS_SW_RESEND
 	select HARDLOCKUP_CHECK_TIMESTAMP	if X86_64
 	select HAVE_ACPI_APEI			if ACPI

include/linux/pgtable.h

@@ -305,7 +305,7 @@ static inline pmd_t pmdp_get(pmd_t *pmdp)
 }
 #endif
 
-#ifdef CONFIG_GUP_GET_PTE_LOW_HIGH
+#ifdef CONFIG_GUP_GET_PXX_LOW_HIGH
 /*
  * For walking the pagetables without holding any locks.  Some architectures
  * (eg x86-32 PAE) cannot load the entries atomically without using expensive
@@ -365,7 +365,7 @@ static inline pmd_t pmdp_get_lockless(pmd_t *pmdp)
 }
 #define pmdp_get_lockless pmdp_get_lockless
 #endif /* CONFIG_PGTABLE_LEVELS > 2 */
-#endif /* CONFIG_GUP_GET_PTE_LOW_HIGH */
+#endif /* CONFIG_GUP_GET_PXX_LOW_HIGH */
 
 /*
  * We require that the PTE can be read atomically.

mm/Kconfig

@@ -1044,7 +1044,7 @@ config GUP_TEST
 comment "GUP_TEST needs to have DEBUG_FS enabled"
 	depends on !GUP_TEST && !DEBUG_FS
 
-config GUP_GET_PTE_LOW_HIGH
+config GUP_GET_PXX_LOW_HIGH
 	bool
 
 config ARCH_HAS_PTE_SPECIAL