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| author | Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> | 2005-09-03 15:54:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@evo.osdl.org> | 2005-09-05 00:05:45 -0700 |
| commit | 9b4ee40ebbbaf3f8c775b023d89ceedda1167d79 (patch) | |
| tree | e227c96cf51beaa942fefa64277618e5cfc71217 /include/asm-um/pgtable.h | |
| parent | 4944e76d81801b8e60ed3e7789443f210c16ed65 (diff) | |
| download | linux-9b4ee40ebbbaf3f8c775b023d89ceedda1167d79.tar.gz linux-9b4ee40ebbbaf3f8c775b023d89ceedda1167d79.tar.bz2 linux-9b4ee40ebbbaf3f8c775b023d89ceedda1167d79.zip | |
[PATCH] mm: correct _PAGE_FILE comment
_PAGE_FILE does not indicate whether a file is in page / swap cache, it is
set just for non-linear PTE's. Correct the comment for i386, x86_64, UML.
Also clearify _PAGE_NONE.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-um/pgtable.h')
| -rw-r--r-- | include/asm-um/pgtable.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h index a88040920311..e9336f616f9c 100644 --- a/include/asm-um/pgtable.h +++ b/include/asm-um/pgtable.h @@ -16,13 +16,15 @@ #define _PAGE_PRESENT 0x001 #define _PAGE_NEWPAGE 0x002 -#define _PAGE_NEWPROT 0x004 -#define _PAGE_FILE 0x008 /* set:pagecache unset:swap */ -#define _PAGE_PROTNONE 0x010 /* If not present */ +#define _PAGE_NEWPROT 0x004 #define _PAGE_RW 0x020 #define _PAGE_USER 0x040 #define _PAGE_ACCESSED 0x080 #define _PAGE_DIRTY 0x100 +/* If _PAGE_PRESENT is clear, we use these: */ +#define _PAGE_FILE 0x008 /* nonlinear file mapping, saved PTE; unset:swap */ +#define _PAGE_PROTNONE 0x010 /* if the user mapped it with PROT_NONE; + pte_present gives true */ #ifdef CONFIG_3_LEVEL_PGTABLES #include "asm/pgtable-3level.h" |