The patch titled
Subject: kernel/kthread.c:kthread_create_on_node(): clarify documentation
has been added to the -mm tree. Its filename is
kernel-kthreadc-kthread_create_on_node-clarify-documentation.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kernel-kthreadc-kthread_create_on_node-clarify-documentation.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kernel-kthreadc-kthread_create_on_node-clarify-documentation.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: kernel/kthread.c:kthread_create_on_node(): clarify documentation
- Make it clear that the `node' arg refers to memory allocations only:
kthread_create_on_node() does not pin the new thread to that node's
CPUs.
- Encourage the use of NUMA_NO_NODE.
Cc: Nathan Zimmer <nzimmer@xxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/kthread.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff -puN kernel/kthread.c~kernel-kthreadc-kthread_create_on_node-clarify-documentation kernel/kthread.c
--- a/kernel/kthread.c~kernel-kthreadc-kthread_create_on_node-clarify-documentation
+++ a/kernel/kthread.c
@@ -246,15 +246,16 @@ static void create_kthread(struct kthrea
* kthread_create_on_node - create a kthread.
* @threadfn: the function to run until signal_pending(current).
* @data: data ptr for @threadfn.
- * @node: memory node number.
+ * @node: task and thread structures for the thread are allocated on this node
* @namefmt: printf-style name for the thread.
*
* Description: This helper function creates and names a kernel
* thread. The thread will be stopped: use wake_up_process() to start
- * it. See also kthread_run().
+ * it. See also kthread_run(). The new thread has SCHED_NORMAL policy and
+ * is affine to all CPUs.
*
* If thread is going to be bound on a particular cpu, give its node
- * in @node, to get NUMA affinity for kthread stack, or else give -1.
+ * in @node, to get NUMA affinity for kthread stack, or else give NUMA_NO_NODE.
* When woken, the thread will run @threadfn() with @data as its
* argument. @threadfn() can either call do_exit() directly if it is a
* standalone thread for which no one will call kthread_stop(), or
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
arch-alpha-kernel-systblss-remove-debug-check.patch
openrisc-fix-config_uid16-setting.patch
kernel-kthreadc-kthread_create_on_node-clarify-documentation.patch
mm.patch
userfaultfd-change-the-read-api-to-return-a-uffd_msg-fix-2.patch
userfaultfd-change-the-read-api-to-return-a-uffd_msg-fix-2-fix.patch
userfaultfd-avoid-mmap_sem-read-recursion-in-mcopy_atomic-fix.patch
genalloc-add-name-arg-to-gen_pool_get-and-devm_gen_pool_create-fix.patch
include-linux-page-flagsh-rename-macros-to-avoid-collisions.patch
mm-vmscan-fix-the-page-state-calculation-in-too_many_isolated.patch
x86-add-pmd_-for-thp-fix.patch
sparc-add-pmd_-for-thp-fix.patch
mm-support-madvisemadv_free-fix-2.patch
mm-dont-split-thp-page-when-syscall-is-called-fix-3.patch
mm-move-lazy-free-pages-to-inactive-list-fix-fix.patch
mm-move-lazy-free-pages-to-inactive-list-fix-fix-fix.patch
linux-next.patch
linux-next-rejects.patch
drivers-gpu-drm-i915-intel_spritec-fix-build.patch
drivers-gpu-drm-i915-intel_tvc-fix-build.patch
net-netfilter-ipset-work-around-gcc-444-initializer-bug.patch
do_shared_fault-check-that-mmap_sem-is-held.patch
journal_add_journal_head-debug.patch
journal_add_journal_head-debug-fix.patch
kernel-forkc-export-kernel_thread-to-modules.patch
mutex-subsystem-synchro-test-module.patch
slab-leaks3-default-y.patch
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