Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f8d840...
Commit: f8d8406bcb58ff70e97b71c35ff5be90c54fc3d0
Parent: 7d8330a563b00040326084f933f5bee06675ac54
Author: Ingo Molnar <mingo@elte.hu>
AuthorDate: Wed Feb 13 14:09:53 2008 +0100
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Thu Feb 14 23:30:21 2008 +0100
x86: cpa, fix out of date comment
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/mm/pageattr.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 5d22594..4119379 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -870,8 +870,12 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
return;
/*
- * The return value is ignored - the calls cannot fail,
- * large pages are disabled at boot time:
+ * The return value is ignored as the calls cannot fail.
+ * Large pages are kept enabled at boot time, and are
+ * split up quickly with DEBUG_PAGEALLOC. If a splitup
+ * fails here (due to temporary memory shortage) no damage
+ * is done because we just keep the largepage intact up
+ * to the next attempt when it will likely be split up:
*/
if (enable)
__set_pages_p(page, numpages);
-
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