KOSAKI Motohiro wrote:
diff --git a/Documentation/vm/pagemap.txt b/Documentation/vm/pagemap.txt index 4600cbe..7587493 100644 --- a/Documentation/vm/pagemap.txt +++ b/Documentation/vm/pagemap.txt @@ -16,7 +16,7 @@ There are three components to pagemap: * Bits 0-4 swap type if swapped * Bits 5-54 swap offset if swapped * Bits 55-60 page shift (page size = 1<<page shift) - * Bit 61 reserved for future use + * Bit 61 page is file-page or shared-anon * Bit 62 page swapped * Bit 63 page presenthmm.. Here says, file or shmem.diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 2d60492..bc3df31 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -700,6 +700,7 @@ struct pagemapread { #define PM_PRESENT PM_STATUS(4LL) #define PM_SWAP PM_STATUS(2LL) +#define PM_FILE PM_STATUS(1LL) #define PM_NOT_PRESENT PM_PSHIFT(PAGE_SHIFT) #define PM_END_OF_BUFFER 1But, this macro says it's file. it seems a bit misleading. ;-)
well... you know, shmem/shared-anon actually lays on tmpfs. so they really file-pages.
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