Hello,
btrfs_releasepage may call kmem_cache_alloc indirectly,
and provide same GFP flags it gets to kmem_cache_alloc.
So it''s possible to use __GFP_HIGHMEM with the slab
allocator.
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
---
diff -urp 1/fs/btrfs/inode.c 2/fs/btrfs/inode.c
--- 1/fs/btrfs/inode.c 2009-02-05 07:27:07.333888537 +0800
+++ 2/fs/btrfs/inode.c 2009-02-09 21:11:01.000000000 +0800
@@ -4263,7 +4263,7 @@ static int btrfs_releasepage(struct page
{
if (PageWriteback(page) || PageDirty(page))
return 0;
- return __btrfs_releasepage(page, gfp_flags);
+ return __btrfs_releasepage(page, gfp_flags & GFP_NOFS);
}
static void btrfs_invalidatepage(struct page *page, unsigned long offset)
--
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