powerpc: Don't flush caches when adding memory

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This operation takes a significant amount of time when hotplugging
large amounts of memory (~50 seconds with 890GB of persistent memory).

This was orignally in commit fb5924fddf
("powerpc/mm: Flush cache on memory hot(un)plug") to support memtrace,
but the flush on add is not needed as it is flushed on remove.

Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191104023305.9581-7-alastair@au1.ibm.com

...

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Alastair D'Silva 2019-11-04 13:32:58 +11:00 • committed by Michael Ellerman

parent 076265907c

commit ea458effa8

1 changed files with 0 additions and 2 deletions

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arch/powerpc/mm/mem.c

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