Andreas Kling 1fc2612667 Kernel: Make DiskBackedFS::read_block() write to client-provided memory ...

Instead of having DiskBackedFS allocate a ByteBuffer, leave it to each
client to provide buffer space.

This is significantly faster in many cases where we can use a stack
buffer and avoid heap allocation entirely.

2019-09-30 11:04:30 +02:00

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