Commit f9cb654c authored by Mike Rapoport's avatar Mike Rapoport Committed by Linus Torvalds
Browse files

asm-generic: pgalloc: provide generic pgd_free() 



Most architectures define pgd_free() as a wrapper for free_page().

Provide a generic version in asm-generic/pgalloc.h and enable its use for
most architectures.

Signed-off-by: default avatarMike Rapoport <rppt@linux.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: default avatarPekka Enberg <penberg@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>	[m68k]
Cc: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Matthew Wilcox <willy@infradead.org>
Link: http://lkml.kernel.org/r/20200627143453.31835-7-rppt@kernel.org


Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d9e8b929

arch/alpha/include/asm/pgalloc.h

+0 −6
Original line number Diff line number Diff line
@@ -34,10 +34,4 @@ pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) 


extern pgd_t *pgd_alloc(struct mm_struct *mm);



static inline void

pgd_free(struct mm_struct *mm, pgd_t *pgd)

{

	free_page((unsigned long)pgd);

}



#endif /* _ALPHA_PGALLOC_H */

arch/arm/include/asm/pgalloc.h

+1 −0
Original line number Diff line number Diff line
@@ -65,6 +65,7 @@ static inline void clean_pte_table(pte_t *pte) 


#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL

#define __HAVE_ARCH_PTE_ALLOC_ONE

#define __HAVE_ARCH_PGD_FREE

#include <asm-generic/pgalloc.h>



static inline pte_t *

arch/arm64/include/asm/pgalloc.h

+1 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include <asm/cacheflush.h>

#include <asm/tlbflush.h>



#define __HAVE_ARCH_PGD_FREE

#include <asm-generic/pgalloc.h>



#define PGD_SIZE	(PTRS_PER_PGD * sizeof(pgd_t))

arch/csky/include/asm/pgalloc.h

+1 −6
Original line number Diff line number Diff line
@@ -9,7 +9,7 @@ 
#include <linux/sched.h>



#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL

#include <asm-generic/pgalloc.h>	/* for pte_{alloc,free}_one */

#include <asm-generic/pgalloc.h>



static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,

					pte_t *pte)
@@ -42,11 +42,6 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) 
	return pte;

}



static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)

{

	free_pages((unsigned long)pgd, PGD_ORDER);

}



static inline pgd_t *pgd_alloc(struct mm_struct *mm)

{

	pgd_t *ret;

arch/hexagon/include/asm/pgalloc.h

+1 −6
Original line number Diff line number Diff line
@@ -11,7 +11,7 @@ 
#include <asm/mem-layout.h>

#include <asm/atomic.h>



#include <asm-generic/pgalloc.h>	/* for pte_{alloc,free}_one */

#include <asm-generic/pgalloc.h>



extern unsigned long long kmap_generation;
@@ -41,11 +41,6 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) 
	return pgd;

}



static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)

{

	free_page((unsigned long) pgd);

}



static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,

				pgtable_t pte)

{

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