diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm_types.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 8ef84849953f..1da8fb04133f 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -1070,6 +1070,18 @@ static __always_inline void vma_flags_clear_all(vma_flags_t *flags) } /* + * Helper function which converts a vma_flags_t value to a legacy vm_flags_t + * value. This is only valid if the input flags value can be expressed in a + * system word. + * + * Will be removed once the conversion to VMA flags is complete. + */ +static __always_inline vm_flags_t vma_flags_to_legacy(vma_flags_t flags) +{ + return (vm_flags_t)flags.__vma_flags[0]; +} + +/* * Copy value to the first system word of VMA flags, non-atomically. * * IMPORTANT: This does not overwrite bytes past the first system word. The @@ -1083,6 +1095,20 @@ static inline void vma_flags_overwrite_word(vma_flags_t *flags, unsigned long va } /* + * Helper function which converts a legacy vm_flags_t value to a vma_flags_t + * value. + * + * Will be removed once the conversion to VMA flags is complete. + */ +static __always_inline vma_flags_t legacy_to_vma_flags(vm_flags_t flags) +{ + vma_flags_t ret = EMPTY_VMA_FLAGS; + + vma_flags_overwrite_word(&ret, flags); + return ret; +} + +/* * Copy value to the first system word of VMA flags ONCE, non-atomically. * * IMPORTANT: This does not overwrite bytes past the first system word. The |