[PATCH 03/10] mm: convert prctl 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>
---
 kernel/sys.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/kernel/sys.c b/kernel/sys.c
index 1e28b40053ce..605f7fe9a143 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -2392,9 +2392,9 @@ static inline unsigned long get_current_mdwe(void)
 {
        unsigned long ret = 0;
 
-       if (test_bit(MMF_HAS_MDWE, &current->mm->flags))
+       if (mm_flags_test(MMF_HAS_MDWE, current->mm))
                ret |= PR_MDWE_REFUSE_EXEC_GAIN;
-       if (test_bit(MMF_HAS_MDWE_NO_INHERIT, &current->mm->flags))
+       if (mm_flags_test(MMF_HAS_MDWE_NO_INHERIT, current->mm))
                ret |= PR_MDWE_NO_INHERIT;
 
        return ret;
@@ -2427,9 +2427,9 @@ static inline int prctl_set_mdwe(unsigned long bits, 
unsigned long arg3,
                return -EPERM; /* Cannot unset the flags */
 
        if (bits & PR_MDWE_NO_INHERIT)
-               set_bit(MMF_HAS_MDWE_NO_INHERIT, &current->mm->flags);
+               mm_flags_set(MMF_HAS_MDWE_NO_INHERIT, current->mm);
        if (bits & PR_MDWE_REFUSE_EXEC_GAIN)
-               set_bit(MMF_HAS_MDWE, &current->mm->flags);
+               mm_flags_set(MMF_HAS_MDWE, current->mm);
 
        return 0;
 }
@@ -2627,7 +2627,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, 
unsigned long, arg3,
        case PR_GET_THP_DISABLE:
                if (arg2 || arg3 || arg4 || arg5)
                        return -EINVAL;
-               error = !!test_bit(MMF_DISABLE_THP, &me->mm->flags);
+               error = !!mm_flags_test(MMF_DISABLE_THP, me->mm);
                break;
        case PR_SET_THP_DISABLE:
                if (arg3 || arg4 || arg5)
@@ -2635,9 +2635,9 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, 
unsigned long, arg3,
                if (mmap_write_lock_killable(me->mm))
                        return -EINTR;
                if (arg2)
-                       set_bit(MMF_DISABLE_THP, &me->mm->flags);
+                       mm_flags_set(MMF_DISABLE_THP, me->mm);
                else
-                       clear_bit(MMF_DISABLE_THP, &me->mm->flags);
+                       mm_flags_clear(MMF_DISABLE_THP, me->mm);
                mmap_write_unlock(me->mm);
                break;
        case PR_MPX_ENABLE_MANAGEMENT:
@@ -2770,7 +2770,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, 
unsigned long, arg3,
                if (arg2 || arg3 || arg4 || arg5)
                        return -EINVAL;
 
-               error = !!test_bit(MMF_VM_MERGE_ANY, &me->mm->flags);
+               error = !!mm_flags_test(MMF_VM_MERGE_ANY, me->mm);
                break;
 #endif
        case PR_RISCV_V_SET_CONTROL:
-- 
2.50.1