Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=45426812d6b601430d560cb6049757b5b0bc71c4
Commit: 45426812d6b601430d560cb6049757b5b0bc71c4
Parent: f96efd585b8d847181f81bf16721f96ded18d9fe
Author: Nick Piggin <[EMAIL PROTECTED]>
AuthorDate: Sun Jul 15 23:38:12 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Mon Jul 16 09:05:35 2007 -0700
mm: debug check for the fault vs invalidate race
Add a bugcheck for Andrea's pagefault vs invalidate race. This is
triggerable
for both linear and nonlinear pages with a userspace test harness (using
direct IO and truncate, respectively).
Signed-off-by: Nick Piggin <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
mm/filemap.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/mm/filemap.c b/mm/filemap.c
index c6ebd9f..e006c57 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -120,6 +120,7 @@ void __remove_from_page_cache(struct page *page)
page->mapping = NULL;
mapping->nrpages--;
__dec_zone_page_state(page, NR_FILE_PAGES);
+ BUG_ON(page_mapped(page));
}
void remove_from_page_cache(struct page *page)
-
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