+ mm-damon-paddr-remove-damon_pa_access_chk_result-struct.patch added to mm-unstable branch

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The patch titled
     Subject: mm/damon/paddr: remove damon_pa_access_chk_result struct
has been added to the -mm mm-unstable branch.  Its filename is
     mm-damon-paddr-remove-damon_pa_access_chk_result-struct.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-paddr-remove-damon_pa_access_chk_result-struct.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days

------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: mm/damon/paddr: remove damon_pa_access_chk_result struct
Date: Mon, 9 Jan 2023 21:33:35 +0000

'damon_pa_access_chk_result' struct contains only one field.  Use a
variable instead.

Link: https://lkml.kernel.org/r/20230109213335.62525-7-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/damon/paddr.c |   28 +++++++++++-----------------
 1 file changed, 11 insertions(+), 17 deletions(-)

--- a/mm/damon/paddr.c~mm-damon-paddr-remove-damon_pa_access_chk_result-struct
+++ a/mm/damon/paddr.c
@@ -79,50 +79,44 @@ static void damon_pa_prepare_access_chec
 	}
 }
 
-struct damon_pa_access_chk_result {
-	bool accessed;
-};
-
 static bool __damon_pa_young(struct folio *folio, struct vm_area_struct *vma,
 		unsigned long addr, void *arg)
 {
-	struct damon_pa_access_chk_result *result = arg;
+	bool *accessed = arg;
 	DEFINE_FOLIO_VMA_WALK(pvmw, folio, vma, addr, 0);
 
-	result->accessed = false;
+	*accessed = false;
 	while (page_vma_mapped_walk(&pvmw)) {
 		addr = pvmw.address;
 		if (pvmw.pte) {
-			result->accessed = pte_young(*pvmw.pte) ||
+			*accessed = pte_young(*pvmw.pte) ||
 				!folio_test_idle(folio) ||
 				mmu_notifier_test_young(vma->vm_mm, addr);
 		} else {
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-			result->accessed = pmd_young(*pvmw.pmd) ||
+			*accessed = pmd_young(*pvmw.pmd) ||
 				!folio_test_idle(folio) ||
 				mmu_notifier_test_young(vma->vm_mm, addr);
 #else
 			WARN_ON_ONCE(1);
 #endif	/* CONFIG_TRANSPARENT_HUGEPAGE */
 		}
-		if (result->accessed) {
+		if (*accessed) {
 			page_vma_mapped_walk_done(&pvmw);
 			break;
 		}
 	}
 
 	/* If accessed, stop walking */
-	return !result->accessed;
+	return *accessed == false;
 }
 
 static bool damon_pa_young(unsigned long paddr, unsigned long *folio_sz)
 {
 	struct folio *folio = damon_get_folio(PHYS_PFN(paddr));
-	struct damon_pa_access_chk_result result = {
-		.accessed = false,
-	};
+	bool accessed = false;
 	struct rmap_walk_control rwc = {
-		.arg = &result,
+		.arg = &accessed,
 		.rmap_one = __damon_pa_young,
 		.anon_lock = folio_lock_anon_vma_read,
 	};
@@ -133,9 +127,9 @@ static bool damon_pa_young(unsigned long
 
 	if (!folio_mapped(folio) || !folio_raw_mapping(folio)) {
 		if (folio_test_idle(folio))
-			result.accessed = false;
+			accessed = false;
 		else
-			result.accessed = true;
+			accessed = true;
 		folio_put(folio);
 		goto out;
 	}
@@ -154,7 +148,7 @@ static bool damon_pa_young(unsigned long
 
 out:
 	*folio_sz = folio_size(folio);
-	return result.accessed;
+	return accessed;
 }
 
 static void __damon_pa_check_access(struct damon_region *r)
_

Patches currently in -mm which might be from sj@xxxxxxxxxx are

include-linux-mm-fix-release_pages_arg-kernel-doc-comment.patch
mm-damon-core-implement-damos-filter.patch
mm-damon-paddr-support-damos-filters.patch
mm-damon-reclaim-add-a-parameter-called-skip_anon-for-avoiding-anonymous-pages-reclamation.patch
docs-admin-guide-damon-reclaim-document-skip_anon-parameter.patch
mm-damon-sysfs-schemes-implement-filters-directory.patch
mm-damon-sysfs-schemes-implement-filter-directory.patch
mm-damon-sysfs-schemes-connect-filter-directory-and-filters-directory.patch
mm-damon-sysfs-schemes-implement-scheme-filters.patch
mm-damon-sysfs-schemes-implement-scheme-filters-fix.patch
mm-damon-sysfs-schemes-implement-scheme-filters-fix-fix-2.patch
selftests-damon-sysfs-test-filters-directory.patch
docs-admin-guide-mm-damon-usage-document-damos-filters-of-sysfs.patch
docs-abi-damon-document-scheme-filters-files.patch
mm-page_reporting-replace-rcu_access_pointer-with-rcu_dereference_protected.patch
mm-switch-vma_merge-split_vma-and-__split_vma-to-vma-iterator-fix.patch
maintainers-add-types-to-akpm-mm-git-trees-entries.patch
maintainers-memory-management-add-tools-vm-as-managed-files.patch
tools-vm-rename-tools-vm-to-tools-mm.patch
selftests-vm-rename-selftets-vm-to-selftests-mm.patch
docs-admin-guide-mm-numaperf-increase-depth-of-subsections.patch
docs-admin-guide-mm-numaperf-increase-depth-of-subsections-fix.patch
mm-damon-vaddr-rename-damon_young_walk_private-page_sz-to-folio_sz.patch
mm-damon-vaddr-support-folio-of-neither-hpage_pmd_size-nor-page_size.patch
mm-damon-vaddr-record-appropriate-folio-size-when-the-access-is-not-found.patch
mm-damon-paddr-rename-damon_pa_access_chk_result-page_sz-to-folio_sz.patch
mm-damon-paddr-remove-folio_sz-field-from-damon_pa_access_chk_result.patch
mm-damon-paddr-remove-damon_pa_access_chk_result-struct.patch
scripts-spelling-add-a-few-more-typos.patch




[Index of Archives]     [Kernel Archive]     [IETF Annouce]     [DCCP]     [Netdev]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux SCSI]

  Powered by Linux