diff options
Diffstat (limited to 'Documentation/vm')
| -rw-r--r-- | Documentation/vm/pagemap.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/vm/pagemap.txt b/Documentation/vm/pagemap.txt index ce294b0aace4..0e1e55588b59 100644 --- a/Documentation/vm/pagemap.txt +++ b/Documentation/vm/pagemap.txt @@ -70,6 +70,7 @@ There are four components to pagemap: 22. THP 23. BALLOON 24. ZERO_PAGE + 25. IDLE * /proc/kpagecgroup. This file contains a 64-bit inode number of the memory cgroup each page is charged to, indexed by PFN. Only available when @@ -120,6 +121,12 @@ Short descriptions to the page flags: 24. ZERO_PAGE zero page for pfn_zero or huge_zero page +25. IDLE + page has not been accessed since it was marked idle (see + Documentation/vm/idle_page_tracking.txt). Note that this flag may be + stale in case the page was accessed via a PTE. To make sure the flag + is up-to-date one has to read /sys/kernel/mm/page_idle/bitmap first. + [IO related page flags] 1. ERROR IO error occurred 3. UPTODATE page has up-to-date data |