+ proc-pid-smaps-add-mseal-info-for-vma.patch added to mm-hotfixes-unstable branch

[Andrew Morton <akpm@linux-foundation.org>]

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The patch titled
     Subject: /proc/pid/smaps: add mseal info for vma
has been added to the -mm mm-hotfixes-unstable branch.  Its filename is
     proc-pid-smaps-add-mseal-info-for-vma.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/proc-pid-smaps-add-mseal-info-for-vma.patch

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

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------------------------------------------------------
From: Jeff Xu <jeffxu@chromium.org>
Subject: /proc/pid/smaps: add mseal info for vma
Date: Fri, 14 Jun 2024 23:20:14 +0000

Add sl in /proc/pid/smaps to indicate vma is sealed

Link: https://lkml.kernel.org/r/20240614232014.806352-2-jeffxu@google.com
Fixes: 8be7258aad44 ("mseal: add mseal syscall")
Signed-off-by: Jeff Xu <jeffxu@chromium.org>
Cc: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: Jorge Lucangeli Obes <jorgelo@chromium.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Stephen Röttger <sroettger@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 Documentation/filesystems/proc.rst |    1 +
 fs/proc/task_mmu.c                 |    3 +++
 include/linux/mm.h                 |    5 +++++
 mm/internal.h                      |    5 -----
 4 files changed, 9 insertions(+), 5 deletions(-)

--- a/Documentation/filesystems/proc.rst~proc-pid-smaps-add-mseal-info-for-vma
+++ a/Documentation/filesystems/proc.rst
@@ -571,6 +571,7 @@ encoded manner. The codes are the follow
     um    userfaultfd missing tracking
     uw    userfaultfd wr-protect tracking
     ss    shadow stack page
+    sl    sealed
     ==    =======================================
 
 Note that there is no guarantee that every flag and associated mnemonic will
--- a/fs/proc/task_mmu.c~proc-pid-smaps-add-mseal-info-for-vma
+++ a/fs/proc/task_mmu.c
@@ -707,6 +707,9 @@ static void show_smap_vma_flags(struct s
 #ifdef CONFIG_X86_USER_SHADOW_STACK
 		[ilog2(VM_SHADOW_STACK)] = "ss",
 #endif
+#ifdef CONFIG_64BIT
+		[ilog2(VM_SEALED)] = "sl",
+#endif
 	};
 	size_t i;
 
--- a/include/linux/mm.h~proc-pid-smaps-add-mseal-info-for-vma
+++ a/include/linux/mm.h
@@ -406,6 +406,11 @@ extern unsigned int kobjsize(const void
 #define VM_ALLOW_ANY_UNCACHED		VM_NONE
 #endif
 
+#ifdef CONFIG_64BIT
+/* VM is sealed, in vm_flags */
+#define VM_SEALED	_BITUL(63)
+#endif
+
 /* Bits set in the VMA until the stack is in its final location */
 #define VM_STACK_INCOMPLETE_SETUP (VM_RAND_READ | VM_SEQ_READ | VM_STACK_EARLY)
 
--- a/mm/internal.h~proc-pid-smaps-add-mseal-info-for-vma
+++ a/mm/internal.h
@@ -1435,11 +1435,6 @@ unsigned long shrink_slab(gfp_t gfp_mask
 			  int priority);
 
 #ifdef CONFIG_64BIT
-/* VM is sealed, in vm_flags */
-#define VM_SEALED	_BITUL(63)
-#endif
-
-#ifdef CONFIG_64BIT
 static inline int can_do_mseal(unsigned long flags)
 {
 	if (flags)
_

Patches currently in -mm which might be from jeffxu@chromium.org are

mm-memfd-add-documentation-for-mfd_noexec_seal-mfd_exec.patch
mm-memfd-add-documentation-for-mfd_noexec_seal-mfd_exec-v2.patch
mm-memfd-add-documentation-for-mfd_noexec_seal-mfd_exec-v3.patch
proc-pid-smaps-add-mseal-info-for-vma.patch