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@@ -357,10 +357,13 @@ int btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end)
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{
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struct extent_map *em;
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struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
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+ u64 len = end - start + 1;
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+ if (end == (u64)-1)
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+ len = (u64)-1;
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while(1) {
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spin_lock(&em_tree->lock);
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- em = lookup_extent_mapping(em_tree, start, end);
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+ em = lookup_extent_mapping(em_tree, start, len);
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if (!em) {
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spin_unlock(&em_tree->lock);
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break;
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