[PATCH v2 13/17] x86/setup: simplify initrd relocation and reservation

Ingo Molnar mingo at kernel.org
Sun Aug 2 14:01:10 EDT 2020

* Mike Rapoport <rppt at kernel.org> wrote:

> From: Mike Rapoport <rppt at linux.ibm.com>
> Currently, initrd image is reserved very early during setup and then it
> might be relocated and re-reserved after the initial physical memory
> mapping is created. The "late" reservation of memblock verifies that mapped
> memory size exceeds the size of initrd, the checks whether the relocation
> required and, if yes, relocates inirtd to a new memory allocated from
> memblock and frees the old location.
> The check for memory size is excessive as memblock allocation will anyway
> fail if there is not enough memory. Besides, there is no point to allocate
> memory from memblock using memblock_find_in_range() + memblock_reserve()
> when there exists memblock_phys_alloc_range() with required functionality.
> Remove the redundant check and simplify memblock allocation.
> Signed-off-by: Mike Rapoport <rppt at linux.ibm.com>

Assuming there's no hidden dependency here breaking something:

  Acked-by: Ingo Molnar <mingo at kernel.org>



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