From c5d4355d10d414a96ca870b731756b89d068d57a Mon Sep 17 00:00:00 2001 From: Pankaj Gupta Date: Fri, 5 Jul 2019 19:33:22 +0530 Subject: libnvdimm: nd_region flush callback support This patch adds functionality to perform flush from guest to host over VIRTIO. We are registering a callback based on 'nd_region' type. virtio_pmem driver requires this special flush function. For rest of the region types we are registering existing flush function. Report error returned by host fsync failure to userspace. Signed-off-by: Pankaj Gupta Signed-off-by: Dan Williams --- drivers/acpi/nfit/core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 23022cf20d26..c02fa27dd3f3 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -2426,7 +2426,7 @@ static void write_blk_ctl(struct nfit_blk *nfit_blk, unsigned int bw, offset = to_interleave_offset(offset, mmio); writeq(cmd, mmio->addr.base + offset); - nvdimm_flush(nfit_blk->nd_region); + nvdimm_flush(nfit_blk->nd_region, NULL); if (nfit_blk->dimm_flags & NFIT_BLK_DCR_LATCH) readq(mmio->addr.base + offset); @@ -2475,7 +2475,7 @@ static int acpi_nfit_blk_single_io(struct nfit_blk *nfit_blk, } if (rw) - nvdimm_flush(nfit_blk->nd_region); + nvdimm_flush(nfit_blk->nd_region, NULL); rc = read_blk_stat(nfit_blk, lane) ? -EIO : 0; return rc; -- cgit v1.2.3