
This fcntl requests all cached blocks associated with the minor device number associated with the regular file are invalidated. If the file is a block special, invalidate the blocks associated with that minor device instead. This is to be used for a test that tests unmapped file-mapped memory ranges whose blocks are not in the cache and therefore must be fetched from a FS. Change-Id: Ide914b2e88413aa90bd731ae587ca06fa5f13ebc
Description
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