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authorNick Piggin2006-03-22 00:08:05 -0800
committerLinus Torvalds2006-03-22 07:53:57 -0800
commit8dfcc9ba27e2ed257e5de9539f7f03e57c2c0e33 (patch)
treeaecaeb6a0b33c23f79dfcd2418e4a3881a29f2e2 /arch/sh
parent8e7a9aae91101916b86de07fafe3272ea8dc1f10 (diff)
[PATCH] mm: split highorder pages
Have an explicit mm call to split higher order pages into individual pages. Should help to avoid bugs and be more explicit about the code's intention. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Russell King <rmk@arm.linux.org.uk> Cc: David Howells <dhowells@redhat.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/mm/consistent.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index df3a9e452cc5..ee73e30263af 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -23,6 +23,7 @@ void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *handle)
page = alloc_pages(gfp, order);
if (!page)
return NULL;
+ split_page(page, order);
ret = page_address(page);
*handle = virt_to_phys(ret);
@@ -37,8 +38,6 @@ void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *handle)
end = page + (1 << order);
while (++page < end) {
- set_page_count(page, 1);
-
/* Free any unused pages */
if (page >= free) {
__free_page(page);