The quilt patch titled
Subject: procfs: prefer neater pointer error comparison
has been removed from the -mm tree. Its filename was
mm-refactor-mm_access-to-not-return-null-fix.patch
This patch was dropped because it was folded into mm-refactor-mm_access-to-not-return-null.patch
------------------------------------------------------
From: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
Subject: procfs: prefer neater pointer error comparison
Date: Wed, 25 Sep 2024 08:48:27 +0100
We can compare a pointer to a known error code via PTR_ERR(ptr) == -EINVAL
or via ptr == ERR_PTR(-EINVAL) - the latter is neater and collects the
macro and constant in one, so refactor to use this form in
proc_mem_open().
Link: https://lkml.kernel.org/r/2fae1834-749a-45e1-8594-5e5979cf7103@lucifer.local
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
Suggested-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/base.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/proc/base.c~mm-refactor-mm_access-to-not-return-null-fix
+++ a/fs/proc/base.c
@@ -841,7 +841,7 @@ struct mm_struct *proc_mem_open(struct i
put_task_struct(task);
if (IS_ERR(mm))
- return PTR_ERR(mm) == -ESRCH ? NULL : mm;
+ return mm == ERR_PTR(-ESRCH) ? NULL : mm;
/* ensure this mm_struct can't be freed */
mmgrab(mm);
_
Patches currently in -mm which might be from lorenzo.stoakes@xxxxxxxxxx are
mm-avoid-unsafe-vma-hook-invocation-when-error-arises-on-mmap-hook.patch
mm-unconditionally-close-vmas-on-error.patch
mm-refactor-map_deny_write_exec.patch
mm-refactor-arch_calc_vm_flag_bits-and-arm64-mte-handling.patch
mm-resolve-faulty-mmap_region-error-path-behaviour.patch
selftests-mm-add-pkey_sighandler_xx-hugetlb_dio-to-gitignore.patch
mm-refactor-mm_access-to-not-return-null.patch
mm-madvise-unrestrict-process_madvise-for-current-process.patch
maple_tree-do-not-hash-pointers-on-dump-in-debug-mode.patch
tools-testing-fix-phys_addr_t-size-on-64-bit-systems.patch
tools-testing-fix-phys_addr_t-size-on-64-bit-systems-fix.patch
tools-testing-add-additional-vma_internalh-stubs.patch
mm-isolate-mmap-internal-logic-to-mm-vmac.patch
mm-refactor-__mmap_region.patch
mm-remove-unnecessary-reset-state-logic-on-merge-new-vma.patch
mm-defer-second-attempt-at-merge-on-mmap.patch
mm-defer-second-attempt-at-merge-on-mmap-fix.patch
mm-pagewalk-add-the-ability-to-install-ptes.patch
mm-add-pte_marker_guard-pte-marker.patch
mm-madvise-implement-lightweight-guard-page-mechanism.patch
tools-testing-update-tools-uapi-header-for-mman-commonh.patch
selftests-mm-add-self-tests-for-guard-page-feature.patch
mm-remove-unnecessary-page_table_lock-on-stack-expansion.patch
