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| author | Jason Gunthorpe <jgg@nvidia.com> | 2023-02-21 11:11:03 -0400 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2023-02-21 11:11:03 -0400 |
| commit | 939204e4df962982cbc84acc26b29b421dd530a8 (patch) | |
| tree | 753698947a28ff1f18857d198a671317352f16c8 /kernel/umh.c | |
| parent | b4ff830eca097df51af10a9be29e8cc817327919 (diff) | |
| parent | c9c3395d5e3dcc6daee66c6908354d47bf98cb0c (diff) | |
Merge tag 'v6.2' into iommufd.git for-next
Resolve conflicts from the signature change in iommu_map:
- drivers/infiniband/hw/usnic/usnic_uiom.c
Switch iommu_map_atomic() to iommu_map(.., GFP_ATOMIC)
- drivers/vfio/vfio_iommu_type1.c
Following indenting change for GFP_KERNEL
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'kernel/umh.c')
| -rw-r--r-- | kernel/umh.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/kernel/umh.c b/kernel/umh.c index 850631518665..fbf872c624cb 100644 --- a/kernel/umh.c +++ b/kernel/umh.c @@ -438,21 +438,27 @@ int call_usermodehelper_exec(struct subprocess_info *sub_info, int wait) if (wait == UMH_NO_WAIT) /* task has freed sub_info */ goto unlock; - if (wait & UMH_KILLABLE) - state |= TASK_KILLABLE; - if (wait & UMH_FREEZABLE) state |= TASK_FREEZABLE; - retval = wait_for_completion_state(&done, state); - if (!retval) - goto wait_done; - if (wait & UMH_KILLABLE) { + retval = wait_for_completion_state(&done, state | TASK_KILLABLE); + if (!retval) + goto wait_done; + /* umh_complete() will see NULL and free sub_info */ if (xchg(&sub_info->complete, NULL)) goto unlock; + + /* + * fallthrough; in case of -ERESTARTSYS now do uninterruptible + * wait_for_completion_state(). Since umh_complete() shall call + * complete() in a moment if xchg() above returned NULL, this + * uninterruptible wait_for_completion_state() will not block + * SIGKILL'ed processes for long. + */ } + wait_for_completion_state(&done, state); wait_done: retval = sub_info->retval; |