diff options
| author | Konstantin Khlebnikov <khlebnikov@yandex-team.ru> | 2015-09-09 00:00:02 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-09 00:35:28 +0200 |
| commit | deb945441b9408d6cd15751f5232eeca9f50a5a1 (patch) | |
| tree | cc048946ed53eaf107ff451583d8f2f0b634e0f0 /tools/vm | |
| parent | pagemap: check permissions and capabilities at open time (diff) | |
| download | linux-deb945441b9408d6cd15751f5232eeca9f50a5a1.tar.xz linux-deb945441b9408d6cd15751f5232eeca9f50a5a1.zip | |
pagemap: switch to the new format and do some cleanup
This patch removes page-shift bits (scheduled to remove since 3.11) and
completes migration to the new bit layout. Also it cleans messy macro.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Mark Williamson <mwilliamson@undo-software.com>
Tested-by: Mark Williamson <mwilliamson@undo-software.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/vm')
| -rw-r--r-- | tools/vm/page-types.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/tools/vm/page-types.c b/tools/vm/page-types.c index 8bdf16b8ba60..603ec916716b 100644 --- a/tools/vm/page-types.c +++ b/tools/vm/page-types.c @@ -57,23 +57,14 @@ * pagemap kernel ABI bits */ -#define PM_ENTRY_BYTES sizeof(uint64_t) -#define PM_STATUS_BITS 3 -#define PM_STATUS_OFFSET (64 - PM_STATUS_BITS) -#define PM_STATUS_MASK (((1LL << PM_STATUS_BITS) - 1) << PM_STATUS_OFFSET) -#define PM_STATUS(nr) (((nr) << PM_STATUS_OFFSET) & PM_STATUS_MASK) -#define PM_PSHIFT_BITS 6 -#define PM_PSHIFT_OFFSET (PM_STATUS_OFFSET - PM_PSHIFT_BITS) -#define PM_PSHIFT_MASK (((1LL << PM_PSHIFT_BITS) - 1) << PM_PSHIFT_OFFSET) -#define __PM_PSHIFT(x) (((uint64_t) (x) << PM_PSHIFT_OFFSET) & PM_PSHIFT_MASK) -#define PM_PFRAME_MASK ((1LL << PM_PSHIFT_OFFSET) - 1) -#define PM_PFRAME(x) ((x) & PM_PFRAME_MASK) - -#define __PM_SOFT_DIRTY (1LL) -#define PM_PRESENT PM_STATUS(4LL) -#define PM_SWAP PM_STATUS(2LL) -#define PM_SOFT_DIRTY __PM_PSHIFT(__PM_SOFT_DIRTY) - +#define PM_ENTRY_BYTES 8 +#define PM_PFRAME_BITS 55 +#define PM_PFRAME_MASK ((1LL << PM_PFRAME_BITS) - 1) +#define PM_PFRAME(x) ((x) & PM_PFRAME_MASK) +#define PM_SOFT_DIRTY (1ULL << 55) +#define PM_FILE (1ULL << 61) +#define PM_SWAP (1ULL << 62) +#define PM_PRESENT (1ULL << 63) /* * kernel page flags |