The patch titled
Subject: mm: move p?d_alloc_track to separate header file
has been added to the -mm tree. Its filename is
mm-move-pd_alloc_track-to-separate-header-file.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-move-pd_alloc_track-to-separate-header-file.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-move-pd_alloc_track-to-separate-header-file.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Joerg Roedel <jroedel@xxxxxxx>
Subject: mm: move p?d_alloc_track to separate header file
The functions are only used in two source files, so there is no need for
them to be in the global <linux/mm.h> header. Move them to the new
<linux/pgalloc-track.h> header and include it only where needed.
Link: http://lkml.kernel.org/r/20200609120533.25867-1-joro@xxxxxxxxxx
Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
Cc: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Abdul Haleem <abdhalee@xxxxxxxxxxxxxxxxxx>
Cc: Satheesh Rajendran <sathnaga@xxxxxxxxxxxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Cc: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
Cc: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 45 ----------------------------
include/linux/pgalloc-track.h | 51 ++++++++++++++++++++++++++++++++
lib/ioremap.c | 1
mm/vmalloc.c | 1
4 files changed, 53 insertions(+), 45 deletions(-)
--- a/include/linux/mm.h~mm-move-pd_alloc_track-to-separate-header-file
+++ a/include/linux/mm.h
@@ -2093,51 +2093,11 @@ static inline pud_t *pud_alloc(struct mm
NULL : pud_offset(p4d, address);
}
-static inline p4d_t *p4d_alloc_track(struct mm_struct *mm, pgd_t *pgd,
- unsigned long address,
- pgtbl_mod_mask *mod_mask)
-
-{
- if (unlikely(pgd_none(*pgd))) {
- if (__p4d_alloc(mm, pgd, address))
- return NULL;
- *mod_mask |= PGTBL_PGD_MODIFIED;
- }
-
- return p4d_offset(pgd, address);
-}
-
-static inline pud_t *pud_alloc_track(struct mm_struct *mm, p4d_t *p4d,
- unsigned long address,
- pgtbl_mod_mask *mod_mask)
-{
- if (unlikely(p4d_none(*p4d))) {
- if (__pud_alloc(mm, p4d, address))
- return NULL;
- *mod_mask |= PGTBL_P4D_MODIFIED;
- }
-
- return pud_offset(p4d, address);
-}
-
static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
{
return (unlikely(pud_none(*pud)) && __pmd_alloc(mm, pud, address))?
NULL: pmd_offset(pud, address);
}
-
-static inline pmd_t *pmd_alloc_track(struct mm_struct *mm, pud_t *pud,
- unsigned long address,
- pgtbl_mod_mask *mod_mask)
-{
- if (unlikely(pud_none(*pud))) {
- if (__pmd_alloc(mm, pud, address))
- return NULL;
- *mod_mask |= PGTBL_PUD_MODIFIED;
- }
-
- return pmd_offset(pud, address);
-}
#endif /* CONFIG_MMU */
#if USE_SPLIT_PTE_PTLOCKS
@@ -2253,11 +2213,6 @@ static inline void pgtable_pte_page_dtor
((unlikely(pmd_none(*(pmd))) && __pte_alloc_kernel(pmd))? \
NULL: pte_offset_kernel(pmd, address))
-#define pte_alloc_kernel_track(pmd, address, mask) \
- ((unlikely(pmd_none(*(pmd))) && \
- (__pte_alloc_kernel(pmd) || ({*(mask)|=PGTBL_PMD_MODIFIED;0;})))?\
- NULL: pte_offset_kernel(pmd, address))
-
#if USE_SPLIT_PMD_PTLOCKS
static struct page *pmd_to_page(pmd_t *pmd)
--- /dev/null
+++ a/include/linux/pgalloc-track.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_PGALLLC_TRACK_H
+#define _LINUX_PGALLLC_TRACK_H
+
+#if defined(CONFIG_MMU)
+static inline p4d_t *p4d_alloc_track(struct mm_struct *mm, pgd_t *pgd,
+ unsigned long address,
+ pgtbl_mod_mask *mod_mask)
+{
+ if (unlikely(pgd_none(*pgd))) {
+ if (__p4d_alloc(mm, pgd, address))
+ return NULL;
+ *mod_mask |= PGTBL_PGD_MODIFIED;
+ }
+
+ return p4d_offset(pgd, address);
+}
+
+static inline pud_t *pud_alloc_track(struct mm_struct *mm, p4d_t *p4d,
+ unsigned long address,
+ pgtbl_mod_mask *mod_mask)
+{
+ if (unlikely(p4d_none(*p4d))) {
+ if (__pud_alloc(mm, p4d, address))
+ return NULL;
+ *mod_mask |= PGTBL_P4D_MODIFIED;
+ }
+
+ return pud_offset(p4d, address);
+}
+
+static inline pmd_t *pmd_alloc_track(struct mm_struct *mm, pud_t *pud,
+ unsigned long address,
+ pgtbl_mod_mask *mod_mask)
+{
+ if (unlikely(pud_none(*pud))) {
+ if (__pmd_alloc(mm, pud, address))
+ return NULL;
+ *mod_mask |= PGTBL_PUD_MODIFIED;
+ }
+
+ return pmd_offset(pud, address);
+}
+#endif /* CONFIG_MMU */
+
+#define pte_alloc_kernel_track(pmd, address, mask) \
+ ((unlikely(pmd_none(*(pmd))) && \
+ (__pte_alloc_kernel(pmd) || ({*(mask)|=PGTBL_PMD_MODIFIED;0;})))?\
+ NULL: pte_offset_kernel(pmd, address))
+
+#endif /* _LINUX_PGALLLC_TRACK_H */
--- a/lib/ioremap.c~mm-move-pd_alloc_track-to-separate-header-file
+++ a/lib/ioremap.c
@@ -11,6 +11,7 @@
#include <linux/sched.h>
#include <linux/io.h>
#include <linux/export.h>
+#include <linux/pgalloc-track.h>
#include <asm/cacheflush.h>
#ifdef CONFIG_HAVE_ARCH_HUGE_VMAP
--- a/mm/vmalloc.c~mm-move-pd_alloc_track-to-separate-header-file
+++ a/mm/vmalloc.c
@@ -35,6 +35,7 @@
#include <linux/bitops.h>
#include <linux/rbtree_augmented.h>
#include <linux/overflow.h>
+#include <linux/pgalloc-track.h>
#include <linux/uaccess.h>
#include <asm/tlbflush.h>
_
Patches currently in -mm which might be from jroedel@xxxxxxx are
mm-move-pd_alloc_track-to-separate-header-file.patch
