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142eac65f3
Add checks for memblock_alloc for top down allocation direction.
The tested scenarios are:
- Region can be allocated on the first fit (with and without
region merging)
- Region can be allocated on the second fit (with and without
region merging)
Add checks for both allocation directions:
- Region can be allocated between two already existing entries
- Limited memory available
- All memory is reserved
- No available memory registered with memblock
Signed-off-by: Karolina Drobnik <karolinadrobnik@gmail.com>
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Link: https://lore.kernel.org/r/26ccf409b8ff0394559d38d792b2afb24b55887c.1646055639.git.karolinadrobnik@gmail.com