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authorLinus Torvalds <torvalds@linux-foundation.org>2022-06-26 14:00:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-06-26 14:00:55 -0700
commit413c1f14919b3efee05eb79d2e913663e964abda (patch)
tree445ddd6f95bf1d4141401f674056f4c5fbd350ac /kernel
parent893d1eaa56e8ed8ebf0726556454c9e53c0bf047 (diff)
parente67679cc4264cf9b318af4e8616eaa2a7565db1f (diff)
Merge tag 'mm-hotfixes-stable-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull hotfixes from Andrew Morton: "Minor things, mainly - mailmap updates, MAINTAINERS updates, etc. Fixes for this merge window: - fix for a damon boot hang, from SeongJae - fix for a kfence warning splat, from Jason Donenfeld - fix for zero-pfn pinning, from Alex Williamson - fix for fallocate hole punch clearing, from Mike Kravetz Fixes for previous releases: - fix for a performance regression, from Marcelo - fix for a hwpoisining BUG from zhenwei pi" * tag 'mm-hotfixes-stable-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mailmap: add entry for Christian Marangi mm/memory-failure: disable unpoison once hw error happens hugetlbfs: zero partial pages during fallocate hole punch mm: memcontrol: reference to tools/cgroup/memcg_slabinfo.py mm: re-allow pinning of zero pfns mm/kfence: select random number before taking raw lock MAINTAINERS: add maillist information for LoongArch MAINTAINERS: update MM tree references MAINTAINERS: update Abel Vesa's email MAINTAINERS: add MEMORY HOT(UN)PLUG section and add David as reviewer MAINTAINERS: add Miaohe Lin as a memory-failure reviewer mailmap: add alias for jarkko@profian.com mm/damon/reclaim: schedule 'damon_reclaim_timer' only after 'system_wq' is initialized kthread: make it clear that kthread_create_on_node() might be terminated by any fatal signal mm: lru_cache_disable: use synchronize_rcu_expedited mm/page_isolation.c: fix one kernel-doc comment
Diffstat (limited to 'kernel')
-rw-r--r--kernel/kthread.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 544fd4097406..3c677918d8f2 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -340,7 +340,7 @@ static int kthread(void *_create)
self = to_kthread(current);
- /* If user was SIGKILLed, I release the structure. */
+ /* Release the structure when caller killed by a fatal signal. */
done = xchg(&create->done, NULL);
if (!done) {
kfree(create);
@@ -398,7 +398,7 @@ static void create_kthread(struct kthread_create_info *create)
/* We want our own signal handler (we take no signals by default). */
pid = kernel_thread(kthread, create, CLONE_FS | CLONE_FILES | SIGCHLD);
if (pid < 0) {
- /* If user was SIGKILLed, I release the structure. */
+ /* Release the structure when caller killed by a fatal signal. */
struct completion *done = xchg(&create->done, NULL);
if (!done) {
@@ -440,9 +440,9 @@ struct task_struct *__kthread_create_on_node(int (*threadfn)(void *data),
*/
if (unlikely(wait_for_completion_killable(&done))) {
/*
- * If I was SIGKILLed before kthreadd (or new kernel thread)
- * calls complete(), leave the cleanup of this structure to
- * that thread.
+ * If I was killed by a fatal signal before kthreadd (or new
+ * kernel thread) calls complete(), leave the cleanup of this
+ * structure to that thread.
*/
if (xchg(&create->done, NULL))
return ERR_PTR(-EINTR);
@@ -876,7 +876,7 @@ fail_task:
*
* Returns a pointer to the allocated worker on success, ERR_PTR(-ENOMEM)
* when the needed structures could not get allocated, and ERR_PTR(-EINTR)
- * when the worker was SIGKILLed.
+ * when the caller was killed by a fatal signal.
*/
struct kthread_worker *
kthread_create_worker(unsigned int flags, const char namefmt[], ...)
@@ -925,7 +925,7 @@ EXPORT_SYMBOL(kthread_create_worker);
* Return:
* The pointer to the allocated worker on success, ERR_PTR(-ENOMEM)
* when the needed structures could not get allocated, and ERR_PTR(-EINTR)
- * when the worker was SIGKILLed.
+ * when the caller was killed by a fatal signal.
*/
struct kthread_worker *
kthread_create_worker_on_cpu(int cpu, unsigned int flags,