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| author |   Alastair D'Silva <alastair@d-silva.org> | 2019-11-04 13:32:58 +1100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-11-07 23:35:41 +1100 |
| commit | ea458effa88e4f4739551d76fe3f702daf607995 (patch) | |
| tree | d8352970cb1161da34381d5ca173fc7ff9db6907 /arch/powerpc/platforms/powernv/opal.c | |
| parent | powerpc: Chunk calls to flush_dcache_range in arch_*_memory (diff) | |
| download | linux-dev-ea458effa88e4f4739551d76fe3f702daf607995.tar.xz linux-dev-ea458effa88e4f4739551d76fe3f702daf607995.zip | |
powerpc: Don't flush caches when adding memory
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 fb5924fddf9e
("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
Diffstat (limited to 'arch/powerpc/platforms/powernv/opal.c')
0 files changed, 0 insertions, 0 deletions