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pagemap: document clarifications

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Some bit ranges were inclusive and some not.  Fix them to be consistently
inclusive.

Signed-off-by: Wu Fengguang <[email protected]>
Cc: KOSAKI Motohiro <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Matt Mackall <[email protected]>
Cc: Alexey Dobriyan <[email protected]>
Cc: Ingo Molnar <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Wu Fengguang 2009-06-16 15:32:25 -07:00 • committed by Linus Torvalds
commit c9ba78e226
1 changed files with 3 additions and 3 deletions
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6
Documentation/vm/pagemap.txt
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@ -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