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| author | Wu Fengguang <fengguang.wu@intel.com> | 2009-06-17 00:32:25 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-17 04:47:38 +0200 |
| commit | c9ba78e226057a1c2f19671383c496df187c02b5 (patch) | |
| tree | 8e28df19b0304fc58bb854d812661e628b7ac612 /Documentation/vm/pagemap.txt | |
| parent | proc: export more page flags in /proc/kpageflags (diff) | |
| download | linux-c9ba78e226057a1c2f19671383c496df187c02b5.tar.xz linux-c9ba78e226057a1c2f19671383c496df187c02b5.zip | |
pagemap: document clarifications
Some bit ranges were inclusive and some not. Fix them to be consistently
inclusive.
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/vm/pagemap.txt')
| -rw-r--r-- | Documentation/vm/pagemap.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/vm/pagemap.txt b/Documentation/vm/pagemap.txt index ce72c0fe6177..1f1e69f72fcd 100644 --- a/Documentation/vm/pagemap.txt +++ b/Documentation/vm/pagemap.txt @@ -12,9 +12,9 @@ There are three components to pagemap: value for each virtual page, containing the following data (from fs/proc/task_mmu.c, above pagemap_read): - * Bits 0-55 page frame number (PFN) if present + * Bits 0-54 page frame number (PFN) if present * Bits 0-4 swap type if swapped - * Bits 5-55 swap offset 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 62 page swapped @@ -36,7 +36,7 @@ There are three components to pagemap: * /proc/kpageflags. This file contains a 64-bit set of flags for each page, indexed by PFN. - The flags are (from fs/proc/proc_misc, above kpageflags_read): + The flags are (from fs/proc/page.c, above kpageflags_read): 0. LOCKED 1. ERROR |