Merge more updates from Andrew Morton:
"55 patches.
Subsystems affected by this patch series: percpu, procfs, sysctl,
misc, core-kernel, get_maintainer, lib, checkpatch, binfmt, nilfs2,
hfs, fat, adfs, panic, delayacct, kconfig, kcov, and ubsan"
* emailed patches from Andrew Morton <
[email protected]>: (55 commits)
lib: remove redundant assignment to variable ret
ubsan: remove CONFIG_UBSAN_OBJECT_SIZE
kcov: fix generic Kconfig dependencies if ARCH_WANTS_NO_INSTR
lib/Kconfig.debug: make TEST_KMOD depend on PAGE_SIZE_LESS_THAN_256KB
btrfs: use generic Kconfig option for 256kB page size limit
arch/Kconfig: split PAGE_SIZE_LESS_THAN_256KB from PAGE_SIZE_LESS_THAN_64KB
configs: introduce debug.config for CI-like setup
delayacct: track delays from memory compact
Documentation/accounting/delay-accounting.rst: add thrashing page cache and direct compact
delayacct: cleanup flags in struct task_delay_info and functions use it
delayacct: fix incomplete disable operation when switch enable to disable
delayacct: support swapin delay accounting for swapping without blkio
panic: remove oops_id
panic: use error_report_end tracepoint on warnings
fs/adfs: remove unneeded variable make code cleaner
FAT: use io_schedule_timeout() instead of congestion_wait()
hfsplus: use struct_group_attr() for memcpy() region
nilfs2: remove redundant pointer sbufs
fs/binfmt_elf: use PT_LOAD p_align values for static PIE
const_structs.checkpatch: add frequently used ops structs
...
unsigned int cpu,
const char *namefmt);
-void set_kthread_struct(struct task_struct *p);
+ void get_kthread_comm(char *buf, size_t buf_size, struct task_struct *tsk);
+bool set_kthread_struct(struct task_struct *p);
void kthread_set_per_cpu(struct task_struct *k, int cpu);
bool kthread_is_per_cpu(struct task_struct *k);
return kthread;
}
-void set_kthread_struct(struct task_struct *p)
+ void get_kthread_comm(char *buf, size_t buf_size, struct task_struct *tsk)
+ {
+ struct kthread *kthread = to_kthread(tsk);
+
+ if (!kthread || !kthread->full_name) {
+ __get_task_comm(buf, buf_size, tsk);
+ return;
+ }
+
+ strscpy_pad(buf, kthread->full_name, buf_size);
+ }
+
+bool set_kthread_struct(struct task_struct *p)
{
struct kthread *kthread;
struct kthread *kthread;
/*
- * Can be NULL if this kthread was created by kernel_thread()
- * or if kmalloc() in kthread() failed.
+ * Can be NULL if kmalloc() in set_kthread_struct() failed.
*/
kthread = to_kthread(k);
+ if (!kthread)
+ return;
+
#ifdef CONFIG_BLK_CGROUP
- WARN_ON_ONCE(kthread && kthread->blkcg_css);
+ WARN_ON_ONCE(kthread->blkcg_css);
#endif
+ k->worker_private = NULL;
+ kfree(kthread->full_name);
kfree(kthread);
}