From: Mike Christie <michael.christie@oracle.com>
To: geert@linux-m68k.org, vverma@digitalocean.com, hdanton@sina.com,
hch@infradead.org, stefanha@redhat.com, jasowang@redhat.com,
mst@redhat.com, sgarzare@redhat.com,
virtualization@lists.linux-foundation.org,
christian.brauner@ubuntu.com, axboe@kernel.dk,
linux-kernel@vger.kernel.org
Cc: Mike Christie <michael.christie@oracle.com>
Subject: [PATCH V5 08/10] fork: remove create_io_thread
Date: Sun, 21 Nov 2021 11:49:28 -0600 [thread overview]
Message-ID: <20211121174930.6690-9-michael.christie@oracle.com> (raw)
In-Reply-To: <20211121174930.6690-1-michael.christie@oracle.com>
create_io_thread is not used anymore so remove it.
Signed-off-by: Mike Christie <michael.christie@oracle.com>
---
include/linux/sched/task.h | 1 -
kernel/fork.c | 22 ----------------------
2 files changed, 23 deletions(-)
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 2188be3a3142..313fb8c825ae 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -89,7 +89,6 @@ extern void exit_files(struct task_struct *);
extern void exit_itimers(struct signal_struct *);
extern pid_t kernel_clone(struct kernel_clone_args *kargs);
-struct task_struct *create_io_thread(int (*fn)(void *), void *arg, int node);
struct task_struct *kernel_worker(int (*fn)(void *), void *arg, int node,
unsigned long clone_flags, u32 worker_flags);
__printf(2, 3)
diff --git a/kernel/fork.c b/kernel/fork.c
index 3729abafbdf9..1b44d048ec16 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2521,28 +2521,6 @@ struct mm_struct *copy_init_mm(void)
return dup_mm(NULL, &init_mm);
}
-/*
- * This is like kernel_clone(), but shaved down and tailored to just
- * creating io_uring workers. It returns a created task, or an error pointer.
- * The returned task is inactive, and the caller must fire it up through
- * wake_up_new_task(p). All signals are blocked in the created task.
- */
-struct task_struct *create_io_thread(int (*fn)(void *), void *arg, int node)
-{
- unsigned long flags = CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|
- CLONE_IO;
- struct kernel_clone_args args = {
- .flags = ((lower_32_bits(flags) | CLONE_VM |
- CLONE_UNTRACED) & ~CSIGNAL),
- .exit_signal = (lower_32_bits(flags) & CSIGNAL),
- .stack = (unsigned long)fn,
- .stack_size = (unsigned long)arg,
- .worker_flags = KERN_WORKER_IO | KERN_WORKER_USER,
- };
-
- return copy_process(NULL, 0, node, &args);
-}
-
static bool kernel_worker_flags_valid(struct kernel_clone_args *kargs)
{
/* Verify that no unknown flags are passed along. */
--
2.25.1
next prev parent reply other threads:[~2021-11-21 17:50 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-21 17:49 [PATCH V5 00/10] Use copy_process/create_io_thread in vhost layer Mike Christie
2021-11-21 17:49 ` [PATCH V5 01/10] fork: Make IO worker options flag based Mike Christie
2021-11-21 17:49 ` [PATCH V5 02/10] fork/vm: Move common PF_IO_WORKER behavior to new flag Mike Christie
2021-11-22 8:08 ` Geert Uytterhoeven
2021-11-21 17:49 ` [PATCH V5 03/10] fork: add KERNEL_WORKER flag to not dup/clone files Mike Christie
2021-11-21 17:49 ` [PATCH V5 04/10] fork: Add KERNEL_WORKER flag to ignore signals Mike Christie
2021-11-21 17:49 ` [PATCH V5 05/10] signal: Perfom autoreap for PF_USER_WORKER Mike Christie
2021-11-21 17:49 ` [PATCH V5 06/10] fork: add helper to clone a process Mike Christie
2021-11-21 17:49 ` [PATCH V5 07/10] io_uring: switch to kernel_worker Mike Christie
2021-11-21 18:17 ` Jens Axboe
2021-11-22 10:02 ` Christian Brauner
2021-11-22 14:20 ` Jens Axboe
2021-11-22 16:47 ` michael.christie
2021-11-23 14:23 ` Christian Brauner
2021-11-21 17:49 ` Mike Christie [this message]
2021-11-21 17:49 ` [PATCH V5 09/10] vhost: move worker thread fields to new struct Mike Christie
2021-11-21 17:49 ` [PATCH V5 10/10] vhost: use kernel_worker to check RLIMITs Mike Christie
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