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| author |   Dan Williams <dan.j.williams@intel.com> | 2019-07-17 18:08:09 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2019-07-18 16:22:35 -0700 |
| commit | 6de5d06e657acdbcf9637dac37916a4a5309e0f4 (patch) | |
| tree | ed21c6874c4945e3e21e796dccd4b420203b47c9 /drivers/nvdimm/region_devs.c | |
| parent | libnvdimm/region: Register badblocks before namespaces (diff) | |
| download | linux-dev-6de5d06e657acdbcf9637dac37916a4a5309e0f4.tar.xz linux-dev-6de5d06e657acdbcf9637dac37916a4a5309e0f4.zip | |
libnvdimm/bus: Prepare the nd_ioctl() path to be re-entrant
In preparation for not holding a lock over the execution of nd_ioctl(),
update the implementation to allow multiple threads to be attempting
ioctls at the same time. The bus lock still prevents multiple in-flight
->ndctl() invocations from corrupting each other's state, but static
global staging buffers are moved to the heap.
Reported-by: Vishal Verma <vishal.l.verma@intel.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Tested-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/156341208947.292348.10560140326807607481.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/region_devs.c')
0 files changed, 0 insertions, 0 deletions