Messages in this thread | | | From | Huaisheng Ye <> | Subject | [PATCH 0/4] add ro state control function for nvdimm drivers | Date | Wed, 27 Oct 2021 20:09:33 +0800 |
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libndctl failed to pass for the reason of writing pmem disk when running ndctl testing.
Here is the error message below,
namespace6.0: failed to write /dev/pmem6 check_namespaces: namespace6.0 validate_bdev failed ndctl-test1 failed: -6
Commit 98f49b63e84d4ee1a5c327d0b5f4e8699f6c70fe removes set_device_ro and e00adcadf3af7a8335026d71ab9f0e0a922191ac adds a new set_read_only method to allow for driver-specific processing when changing the block device's read-only state.
Current drivers nd_pmem, nd_blk and nd_btt don't have the capability to enable or disable write protect (read-only) state. Without that, blkdev_roset just modifies the value of bd_read_only of struct block_device and returns success to ioctl of block device. Error would happen when writing read-only disk next.
Add ro state control function in libnvdimm for this purpose, and implement set_read_only for BLKROSET.
Huaisheng Ye (4): libnvdimm: add a ro state control function for nvdimm libnvdimm/pmem: implement ->set_read_only to hook into BLKROSET processing libnvdimm/blk: implement ->set_read_only to hook into BLKROSET processing libnvdimm/btt: implement ->set_read_only to hook into BLKROSET processing
drivers/nvdimm/blk.c | 1 + drivers/nvdimm/btt.c | 1 + drivers/nvdimm/bus.c | 17 +++++++++++++++++ drivers/nvdimm/nd.h | 1 + drivers/nvdimm/pmem.c | 1 + 5 files changed, 21 insertions(+)
-- 2.27.0
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