From d5240fa65db071909e9d1d5adcc5fd1abc8e96fe Mon Sep 17 00:00:00 2001 From: Zhihao Cheng Date: Fri, 9 Aug 2024 11:11:55 +0800 Subject: nvdimm/pmem: Set dax flag for all 'PFN_MAP' cases The dax is only supported on pfn type pmem devices since commit f467fee48da4 ("block: move the dax flag to queue_limits"). Trying to mount DAX filesystem fails with this error: mount: : wrong fs type, bad option, bad superblock on /dev/pmem7, missing codepage or helper program, or other error. dmesg(1) may have more information after failed mount system call. dmesg: EXT4-fs (pmem7): DAX unsupported by block device. Fix the problem by adding dax flag setting for the missed case. Fixes: f467fee48da4 ("block: move the dax flag to queue_limits") Signed-off-by: Zhihao Cheng Reviewed-by: Christoph Hellwig Reviewed-by: Dave Jiang Reviewed-by: Ira Weiny Tested-by: Ira Weiny Tested-by: Alison Schofield Link: https://patch.msgid.link/20240809031155.2837271-1-chengzhihao1@huawei.com Signed-off-by: Ira Weiny --- drivers/nvdimm/pmem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/nvdimm') diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 1ae8b2351654..210fb77f51ba 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -498,7 +498,7 @@ static int pmem_attach_disk(struct device *dev, } if (fua) lim.features |= BLK_FEAT_FUA; - if (is_nd_pfn(dev)) + if (is_nd_pfn(dev) || pmem_should_map_pages(dev)) lim.features |= BLK_FEAT_DAX; if (!devm_request_mem_region(dev, res->start, resource_size(res), -- cgit v1.2.3