[PATCH 09/10] mm: convert remaining users to mm_flags_*() accessors

[Lorenzo Stoakes]

As part of the effort to move to mm->flags becoming a bitmap field, convert
existing users to making use of the mm_flags_*() accessors which will, when
the conversion is complete, be the only means of accessing mm_struct flags.

No functional change intended.

Signed-off-by: Lorenzo Stoakes <lorenzo.stoa...@oracle.com>
---
 fs/proc/array.c    | 2 +-
 fs/proc/base.c     | 4 ++--
 fs/proc/task_mmu.c | 2 +-
 kernel/fork.c      | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/proc/array.c b/fs/proc/array.c
index d6a0369caa93..c286dc12325e 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -422,7 +422,7 @@ static inline void task_thp_status(struct seq_file *m, 
struct mm_struct *mm)
        bool thp_enabled = IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE);
 
        if (thp_enabled)
-               thp_enabled = !test_bit(MMF_DISABLE_THP, &mm->flags);
+               thp_enabled = !mm_flags_test(MMF_DISABLE_THP, mm);
        seq_printf(m, "THP_enabled:\t%d\n", thp_enabled);
 }
 
diff --git a/fs/proc/base.c b/fs/proc/base.c
index f0c093c58aaf..b997ceef9135 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1163,7 +1163,7 @@ static int __set_oom_adj(struct file *file, int oom_adj, 
bool legacy)
                struct task_struct *p = find_lock_task_mm(task);
 
                if (p) {
-                       if (test_bit(MMF_MULTIPROCESS, &p->mm->flags)) {
+                       if (mm_flags_test(MMF_MULTIPROCESS, p->mm)) {
                                mm = p->mm;
                                mmgrab(mm);
                        }
@@ -3276,7 +3276,7 @@ static int proc_pid_ksm_stat(struct seq_file *m, struct 
pid_namespace *ns,
                seq_printf(m, "ksm_merging_pages %lu\n", mm->ksm_merging_pages);
                seq_printf(m, "ksm_process_profit %ld\n", 
ksm_process_profit(mm));
                seq_printf(m, "ksm_merge_any: %s\n",
-                               test_bit(MMF_VM_MERGE_ANY, &mm->flags) ? "yes" 
: "no");
+                               mm_flags_test(MMF_VM_MERGE_ANY, mm) ? "yes" : 
"no");
                ret = mmap_read_lock_killable(mm);
                if (ret) {
                        mmput(mm);
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index e64cf40ce9c4..e8e7bef34531 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -1592,7 +1592,7 @@ static inline bool pte_is_pinned(struct vm_area_struct 
*vma, unsigned long addr,
                return false;
        if (!is_cow_mapping(vma->vm_flags))
                return false;
-       if (likely(!test_bit(MMF_HAS_PINNED, &vma->vm_mm->flags)))
+       if (likely(!mm_flags_test(MMF_HAS_PINNED, vma->vm_mm)))
                return false;
        folio = vm_normal_folio(vma, addr, pte);
        if (!folio)
diff --git a/kernel/fork.c b/kernel/fork.c
index b311caec6419..68c81539193d 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1887,7 +1887,7 @@ static void copy_oom_score_adj(u64 clone_flags, struct 
task_struct *tsk)
 
        /* We need to synchronize with __set_oom_adj */
        mutex_lock(&oom_adj_mutex);
-       set_bit(MMF_MULTIPROCESS, &tsk->mm->flags);
+       mm_flags_set(MMF_MULTIPROCESS, tsk->mm);
        /* Update the values in case they were changed after copy_signal */
        tsk->signal->oom_score_adj = current->signal->oom_score_adj;
        tsk->signal->oom_score_adj_min = current->signal->oom_score_adj_min;
-- 
2.50.1