Messages in this thread | | | Date | Thu, 20 May 1999 18:27:19 +0200 | From | Jamie Lokier <> | Subject | Re: Deletion of big files... |
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Variations on this theme: a bitmap counter map. Each entry in the counter map is an integer, one for each bitmap block. The number of bits set in a bitmap block is stored in the counter map.
When the counter map value hits zero, the bitmap block itself is ignored -- you can simply bforget() it saving a write.
Also this could perhaps optimise bitmap searches for free space? I'm not sure if that would gain anything.
Enjoy, -- Jamie
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