Mart G b00cdf8ed8 Kernel+LibC: Make get_dir_entries syscall retriable ...

The get_dir_entries syscall failed if the serialized form of all the
directory entries together was too large to fit in its temporary buffer.

Now the kernel uses a fixed size buffer, that is flushed to an output
buffer when it is full. If this flushing operation fails because there
is not enough space available, the syscall will return -EINVAL. That
error code is then used in userspace as a signal to allocate a larger
buffer and retry the syscall.

2021-05-12 12:50:23 +02:00

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