We should consider volatile regions synchronous so that we are resilient to OS crashes. This is needed when we have hypervisor like KVM exporting a ramdisk as pmem dimms.
Signed-off-by: Aneesh Kumar K.V <[email protected]> --- drivers/nvdimm/region_devs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c index ab91890f2486..ef423ba1a711 100644 --- a/drivers/nvdimm/region_devs.c +++ b/drivers/nvdimm/region_devs.c @@ -1168,6 +1168,9 @@ EXPORT_SYMBOL_GPL(nvdimm_has_cache); bool is_nvdimm_sync(struct nd_region *nd_region) { + if (is_nd_volatile(&nd_region->dev)) + return true; + return is_nd_pmem(&nd_region->dev) && !test_bit(ND_REGION_ASYNC, &nd_region->flags); } -- 2.21.0 _______________________________________________ Linux-nvdimm mailing list [email protected] https://lists.01.org/mailman/listinfo/linux-nvdimm
