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| author | Zhihao Cheng <chengzhihao1@huawei.com> | 2024-08-09 11:11:55 +0800 |
|---|---|---|
| committer | Ira Weiny <ira.weiny@intel.com> | 2024-08-09 14:29:58 -0500 |
| commit | d5240fa65db071909e9d1d5adcc5fd1abc8e96fe (patch) | |
| tree | d0364897fbbc78017d014ef570f11551c9fe95a2 /drivers/nvdimm | |
| parent | afdab700f65e14070d8ab92175544b1c62b8bf03 (diff) | |
| download | lwn-d5240fa65db071909e9d1d5adcc5fd1abc8e96fe.tar.gz lwn-d5240fa65db071909e9d1d5adcc5fd1abc8e96fe.zip | |
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 <chengzhihao1@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Tested-by: Ira Weiny <ira.weiny@intel.com>
Tested-by: Alison Schofield <alison.schofield@intel.com>
Link: https://patch.msgid.link/20240809031155.2837271-1-chengzhihao1@huawei.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Diffstat (limited to 'drivers/nvdimm')
| -rw-r--r-- | drivers/nvdimm/pmem.c | 2 |
1 files changed, 1 insertions, 1 deletions
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), |