diff options
| author |   Nick Piggin <npiggin@suse.de> | 2006-03-22 00:08:06 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-22 07:53:58 -0800 |
| commit | 9d41415221214ca4820b9464dfa548e2f20e7dd5 (patch) | |
| tree | 58db93aca7cf16ddf22a9d86f32c6f04c19d721c /include | |
| parent | [PATCH] mm: split highorder pages (diff) | |
| download | linux-dev-9d41415221214ca4820b9464dfa548e2f20e7dd5.tar.xz linux-dev-9d41415221214ca4820b9464dfa548e2f20e7dd5.zip | |
[PATCH] mm: page_state comment more
Clarify that preemption needs to be guarded against with the
__xxx_page_state functions.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/page-flags.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 8cef69d462f2..9ea629c02a4b 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -86,8 +86,9 @@ * - The __xxx_page_state variants can be used safely when interrupts are * disabled. * - The __xxx_page_state variants can be used if the field is only - * modified from process context, or only modified from interrupt context. - * In this case, the field should be commented here. + * modified from process context and protected from preemption, or only + * modified from interrupt context. In this case, the field should be + * commented here. */ struct page_state { unsigned long nr_dirty; /* Dirty writeable pages */ |