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| 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 | |
| parent | 8dfcc9ba27e2ed257e5de9539f7f03e57c2c0e33 (diff) | |
| download | linux-3.10-9d41415221214ca4820b9464dfa548e2f20e7dd5.tar.gz linux-3.10-9d41415221214ca4820b9464dfa548e2f20e7dd5.tar.bz2 linux-3.10-9d41415221214ca4820b9464dfa548e2f20e7dd5.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>
| -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 8cef69d462f..9ea629c02a4 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 */ |