diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2023-04-07 22:31:42 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-04-12 19:48:46 +0200 |
| commit | a62b8f87c770fa4109ce515e4d8a0d4701a4ca5f (patch) | |
| tree | 954153acaf507fb5df405773485c9434dacb68b9 /Documentation | |
| parent | dmaengine: idxd: expose fault counters to sysfs (diff) | |
| download | linux-a62b8f87c770fa4109ce515e4d8a0d4701a4ca5f.tar.xz linux-a62b8f87c770fa4109ce515e4d8a0d4701a4ca5f.zip | |
dmaengine: idxd: add pid to exported sysfs attribute for opened file
Provide the pid of the application for the opened file. This allows the
monitor daemon to easily correlate which app opened the file and easily
kill the app by pid if that is desired action.
Tested-by: Tony Zhu <tony.zhu@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Co-developed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: https://lore.kernel.org/r/20230407203143.2189681-16-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-driver-dma-idxd | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd index 73ab86196a41..5d0df57f5298 100644 --- a/Documentation/ABI/stable/sysfs-driver-dma-idxd +++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd @@ -335,3 +335,11 @@ Description: Show the number of Completion Record (CR) faults failures that this driver cannot fault in the address for the CR. Typically this is caused by a bad address programmed in the submitted descriptor or a malicious submitter is using bad CR address on purpose. + +What: /sys/bus/dsa/devices/wq<m>.<n>/dsa<x>\!wq<m>.<n>/file<y>/pid +Date: Sept 14, 2022 +KernelVersion: 6.4.0 +Contact: dmaengine@vger.kernel.org +Description: Show the process id of the application that opened the file. This is + helpful information for a monitor daemon that wants to kill the + application that opened the file. |