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Btrfs: factor page private preparations into a helper

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Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Christoph Hellwig
2007-09-17 11:25:58 -04:00
committed by Chris Mason
parent 8e1cd76664
commit b3cfa35a49
4 changed files with 18 additions and 37 deletions
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7
fs/btrfs/file.c
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@@ -543,12 +543,7 @@ static int prepare_pages(struct btrfs_root *root,
}
cancel_dirty_page(pages[i], PAGE_CACHE_SIZE);
wait_on_page_writeback(pages[i]);
if (!PagePrivate(pages[i])) {
SetPagePrivate(pages[i]);
set_page_private(pages[i], 1);
WARN_ON(!pages[i]->mapping->a_ops->invalidatepage);
page_cache_get(pages[i]);
}
set_page_extent_mapped(pages[i]);
WARN_ON(!PageLocked(pages[i]));
}
return 0;