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| author |   Dan Williams <dan.j.williams@intel.com> | 2019-07-17 18:08:15 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2019-07-18 16:23:02 -0700 |
| commit | b70d31d054ee3a6fc1034b9d7fc0ae1e481aa018 (patch) | |
| tree | 91af39c84f543136ea4594ea8e9d331844dfe127 /drivers/nvdimm/region_devs.c | |
| parent | libnvdimm/bus: Prepare the nd_ioctl() path to be re-entrant (diff) | |
| download | linux-dev-b70d31d054ee3a6fc1034b9d7fc0ae1e481aa018.tar.xz linux-dev-b70d31d054ee3a6fc1034b9d7fc0ae1e481aa018.zip | |
libnvdimm/bus: Stop holding nvdimm_bus_list_mutex over __nd_ioctl()
In preparation for fixing a deadlock between wait_for_bus_probe_idle()
and the nvdimm_bus_list_mutex arrange for __nd_ioctl() without
nvdimm_bus_list_mutex held. This also unifies the 'dimm' and 'bus' level
ioctls into a common nd_ioctl() preamble implementation.
Marked for -stable as it is a pre-requisite for a follow-on fix.
Cc: <stable@vger.kernel.org>
Fixes: bf9bccc14c05 ("libnvdimm: pmem label sets and namespace instantiation")
Cc: Vishal Verma <vishal.l.verma@intel.com>
Tested-by: Jane Chu <jane.chu@oracle.com>
Link: https://lore.kernel.org/r/156341209518.292348.7183897251740665198.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