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authorZhihao Cheng <[email protected]>2024-08-09 11:11:55 +0800
committerIra Weiny <[email protected]>2024-08-09 14:29:58 -0500
commitd5240fa65db071909e9d1d5adcc5fd1abc8e96fe (patch)
treed0364897fbbc78017d014ef570f11551c9fe95a2
parentafdab700f65e14070d8ab92175544b1c62b8bf03 (diff)
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 <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Reviewed-by: Dave Jiang <[email protected]> Reviewed-by: Ira Weiny <[email protected]> Tested-by: Ira Weiny <[email protected]> Tested-by: Alison Schofield <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Ira Weiny <[email protected]>
-rw-r--r--drivers/nvdimm/pmem.c2
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),