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| author | Christoph Lameter <clameter@sgi.com> | 2007-05-02 19:27:10 +0200 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2007-05-02 19:27:10 +0200 |
| commit | 2bff73830c3df5f575d3bc21bf19df1a10bf7091 (patch) | |
| tree | aac7c05edb493a31d3b709462a2091ef16c0cbb3 /arch/x86_64/mm/fault.c | |
| parent | 05f36927eddd83e2840a981ef4d9af754dcb86e9 (diff) | |
| download | op-kernel-dev-2bff73830c3df5f575d3bc21bf19df1a10bf7091.zip op-kernel-dev-2bff73830c3df5f575d3bc21bf19df1a10bf7091.tar.gz | |
[PATCH] x86-64: use lru instead of page->index and page->private for pgd lists management.
x86_64 currently simulates a list using the index and private fields of the
page struct. Seems that the code was inherited from i386. But x86_64 does
not use the slab to allocate pgds and pmds etc. So the lru field is not
used by the slab and therefore available.
This patch uses standard list operations on page->lru to realize pgd
tracking.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/x86_64/mm/fault.c')
| -rw-r--r-- | arch/x86_64/mm/fault.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c index 6ada723..de99dba 100644 --- a/arch/x86_64/mm/fault.c +++ b/arch/x86_64/mm/fault.c @@ -585,7 +585,7 @@ do_sigbus: } DEFINE_SPINLOCK(pgd_lock); -struct page *pgd_list; +LIST_HEAD(pgd_list); void vmalloc_sync_all(void) { @@ -605,8 +605,7 @@ void vmalloc_sync_all(void) if (pgd_none(*pgd_ref)) continue; spin_lock(&pgd_lock); - for (page = pgd_list; page; - page = (struct page *)page->index) { + list_for_each_entry(page, &pgd_list, lru) { pgd_t *pgd; pgd = (pgd_t *)page_address(page) + pgd_index(address); if (pgd_none(*pgd)) |
