diff options
| author | Mike Christie <michael.christie@oracle.com> | 2023-03-10 23:03:26 +0100 |
|---|---|---|
| committer | Christian Brauner (Microsoft) <brauner@kernel.org> | 2023-03-12 10:54:43 +0100 |
| commit | 54e6842d0775ba76db65cbe21311c3ca466e663d (patch) | |
| tree | a530a9aaf2f6cb9a1037c178fba5d111ace28135 /kernel | |
| parent | kernel: Make io_thread and kthread bit fields (diff) | |
| download | linux-54e6842d0775ba76db65cbe21311c3ca466e663d.tar.xz linux-54e6842d0775ba76db65cbe21311c3ca466e663d.zip | |
fork/vm: Move common PF_IO_WORKER behavior to new flag
This adds a new flag, PF_USER_WORKER, that's used for behavior common to
to both PF_IO_WORKER and users like vhost which will use a new helper
instead of create_io_thread because they require different behavior for
operations like signal handling.
The common behavior PF_USER_WORKER covers is the vm reclaim handling.
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/fork.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 81dfb2532148..fb8ec192c199 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -2103,6 +2103,8 @@ static __latent_entropy struct task_struct *copy_process( p->flags &= ~PF_KTHREAD; if (args->kthread) p->flags |= PF_KTHREAD; + if (args->user_worker) + p->flags |= PF_USER_WORKER; if (args->io_thread) { /* * Mark us an IO worker, and block any signal that isn't @@ -2630,6 +2632,7 @@ struct task_struct *create_io_thread(int (*fn)(void *), void *arg, int node) .fn = fn, .fn_arg = arg, .io_thread = 1, + .user_worker = 1, }; return copy_process(NULL, 0, node, &args); |