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Christoph Hellwig authored
Replace the coredump ->read method with a ->dump method that must call dump_emit itself. That way we avoid a buffer allocation an messing with set_fs() to call into code that is intended to deal with user buffers. For the ->get case we can now use a small on-stack buffer and avoid memory allocations as well. Signed-off-by:
Christoph Hellwig <hch@lst.de> Reviewed-by:
Arnd Bergmann <arnd@arndb.de> Reviewed-by:
Jeremy Kerr <jk@ozlabs.org> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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