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Groups > linux.kernel > #1225152
| From | Alexander Kuleshov <kuleshovmail@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 03/10] mm/mincore: Use offset_in_page macro |
| Date | 2015-09-15 16:10 +0200 |
| Message-ID | <q8Z5N-73c-45@gated-at.bofh.it> (permalink) |
| References | <q8Z5L-73c-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
The <linux/mm.h> provides offset_in_page() macro. Let's use already predefined macro instead of (addr & ~PAGE_MASK). Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com> --- mm/mincore.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/mincore.c b/mm/mincore.c index be25efd..a011355 100644 --- a/mm/mincore.c +++ b/mm/mincore.c @@ -234,8 +234,7 @@ SYSCALL_DEFINE3(mincore, unsigned long, start, size_t, len, /* This also avoids any overflows on PAGE_CACHE_ALIGN */ pages = len >> PAGE_SHIFT; - pages += (len & ~PAGE_MASK) != 0; + pages += (offset_in_page(len)) != 0; if (!access_ok(VERIFY_WRITE, vec, pages)) return -EFAULT; -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH 03/10] mm/mincore: Use offset_in_page macro Alexander Kuleshov <kuleshovmail@gmail.com> - 2015-09-15 16:10 +0200
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