Commit 9e4114b3 authored by Rashmica Gupta's avatar Rashmica Gupta Committed by Michael Ellerman

powerpc/mm: Fix hash table dump when memory is not contiguous

The current behaviour of the hash table dump assumes that memory is contiguous
and iterates from the start of memory to (start + size of memory). When memory
isn't physically contiguous, this doesn't work.

If memory exists at 0-5 GB and 6-10 GB then the current approach will check if
entries exist in the hash table from 0GB to 9GB. This patch changes the
behaviour to iterate over any holes up to the end of memory.

Fixes: 1515ab93 ("powerpc/mm: Dump hash table")
Signed-off-by: default avatarRashmica Gupta <rashmica.g@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent aaa22952
...@@ -468,7 +468,7 @@ static void walk_linearmapping(struct pg_state *st) ...@@ -468,7 +468,7 @@ static void walk_linearmapping(struct pg_state *st)
unsigned long psize = 1 << mmu_psize_defs[mmu_linear_psize].shift; unsigned long psize = 1 << mmu_psize_defs[mmu_linear_psize].shift;
for (addr = PAGE_OFFSET; addr < PAGE_OFFSET + for (addr = PAGE_OFFSET; addr < PAGE_OFFSET +
memblock_phys_mem_size(); addr += psize) memblock_end_of_DRAM(); addr += psize)
hpte_find(st, addr, mmu_linear_psize); hpte_find(st, addr, mmu_linear_psize);
} }
......
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