diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/hmm.h | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/include/linux/hmm.h b/include/linux/hmm.h index d0d6760cdada..dd907f614dfe 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -83,8 +83,7 @@ struct hmm; * hmm_pfn_t - HMM uses its own pfn type to keep several flags per page * * Flags: - * HMM_PFN_VALID: pfn is valid - * HMM_PFN_READ: CPU page table has read permission set + * HMM_PFN_VALID: pfn is valid. It has, at least, read permission. * HMM_PFN_WRITE: CPU page table has write permission set * HMM_PFN_ERROR: corresponding CPU page table entry points to poisoned memory * HMM_PFN_EMPTY: corresponding CPU page table entry is pte_none() @@ -97,13 +96,12 @@ struct hmm; typedef unsigned long hmm_pfn_t; #define HMM_PFN_VALID (1 << 0) -#define HMM_PFN_READ (1 << 1) -#define HMM_PFN_WRITE (1 << 2) -#define HMM_PFN_ERROR (1 << 3) -#define HMM_PFN_EMPTY (1 << 4) -#define HMM_PFN_SPECIAL (1 << 5) -#define HMM_PFN_DEVICE_UNADDRESSABLE (1 << 6) -#define HMM_PFN_SHIFT 7 +#define HMM_PFN_WRITE (1 << 1) +#define HMM_PFN_ERROR (1 << 2) +#define HMM_PFN_EMPTY (1 << 3) +#define HMM_PFN_SPECIAL (1 << 4) +#define HMM_PFN_DEVICE_UNADDRESSABLE (1 << 5) +#define HMM_PFN_SHIFT 6 /* * hmm_pfn_t_to_page() - return struct page pointed to by a valid hmm_pfn_t |