diff options
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-05-23 10:24:39 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-05-23 10:24:31 +0200 |
| commit | 2d42552d1c1659b014851cf449ad2fe458509128 (patch) | |
| tree | b9ef22867ce52e23b5249a7ad38637eec40363b8 /include/linux/page-flags.h | |
| parent | c26001d4e9133fe45e47eee18cfd826219e71fb9 (diff) | |
| download | lwn-2d42552d1c1659b014851cf449ad2fe458509128.tar.gz lwn-2d42552d1c1659b014851cf449ad2fe458509128.zip | |
[S390] merge page_test_dirty and page_clear_dirty
The page_clear_dirty primitive always sets the default storage key
which resets the access control bits and the fetch protection bit.
That will surprise a KVM guest that sets non-zero access control
bits or the fetch protection bit. Merge page_test_dirty and
page_clear_dirty back to a single function and only clear the
dirty bit from the storage key.
In addition move the function page_test_and_clear_dirty and
page_test_and_clear_young to page.h where they belong. This
requires to change the parameter from a struct page * to a page
frame number.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/linux/page-flags.h')
| -rw-r--r-- | include/linux/page-flags.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 811183de1ef5..79a6700b7162 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -308,7 +308,7 @@ static inline void SetPageUptodate(struct page *page) { #ifdef CONFIG_S390 if (!test_and_set_bit(PG_uptodate, &page->flags)) - page_clear_dirty(page, 0); + page_set_storage_key(page_to_pfn(page), PAGE_DEFAULT_KEY, 0); #else /* * Memory barrier must be issued before setting the PG_uptodate bit, |