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authorKonstantin Khlebnikov <khlebnikov@yandex-team.ru>2015-09-08 15:00:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-08 15:35:28 -0700
commitdeb945441b9408d6cd15751f5232eeca9f50a5a1 (patch)
treecc048946ed53eaf107ff451583d8f2f0b634e0f0 /tools
parenta06db751c321546e5563041956a57613259c6720 (diff)
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')
-rw-r--r--tools/vm/page-types.c25
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

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