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author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-04-27 19:57:00 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-04-27 19:57:00 -0700 |
commit | 33afd4b76393627477e878b3b195d606e585d816 (patch) | |
tree | 8cc619598c8946e4195c32905e9531392a2be6cb /kernel | |
parent | 7fa8a8ee9400fe8ec188426e40e481717bc5e924 (diff) | |
parent | d88f2f72ca89ead8743ee15e547274ba248e7c59 (diff) | |
download | linux-33afd4b76393627477e878b3b195d606e585d816.tar.gz linux-33afd4b76393627477e878b3b195d606e585d816.tar.bz2 linux-33afd4b76393627477e878b3b195d606e585d816.zip |
Merge tag 'mm-nonmm-stable-2023-04-27-16-01' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
"Mainly singleton patches all over the place.
Series of note are:
- updates to scripts/gdb from Glenn Washburn
- kexec cleanups from Bjorn Helgaas"
* tag 'mm-nonmm-stable-2023-04-27-16-01' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (50 commits)
mailmap: add entries for Paul Mackerras
libgcc: add forward declarations for generic library routines
mailmap: add entry for Oleksandr
ocfs2: reduce ioctl stack usage
fs/proc: add Kthread flag to /proc/$pid/status
ia64: fix an addr to taddr in huge_pte_offset()
checkpatch: introduce proper bindings license check
epoll: rename global epmutex
scripts/gdb: add GDB convenience functions $lx_dentry_name() and $lx_i_dentry()
scripts/gdb: create linux/vfs.py for VFS related GDB helpers
uapi/linux/const.h: prefer ISO-friendly __typeof__
delayacct: track delays from IRQ/SOFTIRQ
scripts/gdb: timerlist: convert int chunks to str
scripts/gdb: print interrupts
scripts/gdb: raise error with reduced debugging information
scripts/gdb: add a Radix Tree Parser
lib/rbtree: use '+' instead of '|' for setting color.
proc/stat: remove arch_idle_time()
checkpatch: check for misuse of the link tags
checkpatch: allow Closes tags with links
...
Diffstat (limited to 'kernel')
-rw-r--r-- | kernel/delayacct.c | 14 | ||||
-rw-r--r-- | kernel/hung_task.c | 10 | ||||
-rw-r--r-- | kernel/kexec_file.c | 6 | ||||
-rw-r--r-- | kernel/notifier.c | 6 | ||||
-rw-r--r-- | kernel/sched/core.c | 1 |
5 files changed, 29 insertions, 8 deletions
diff --git a/kernel/delayacct.c b/kernel/delayacct.c index e39cb696cfbd..6f0c358e73d8 100644 --- a/kernel/delayacct.c +++ b/kernel/delayacct.c @@ -179,12 +179,15 @@ int delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk) d->compact_delay_total = (tmp < d->compact_delay_total) ? 0 : tmp; tmp = d->wpcopy_delay_total + tsk->delays->wpcopy_delay; d->wpcopy_delay_total = (tmp < d->wpcopy_delay_total) ? 0 : tmp; + tmp = d->irq_delay_total + tsk->delays->irq_delay; + d->irq_delay_total = (tmp < d->irq_delay_total) ? 0 : tmp; d->blkio_count += tsk->delays->blkio_count; d->swapin_count += tsk->delays->swapin_count; d->freepages_count += tsk->delays->freepages_count; d->thrashing_count += tsk->delays->thrashing_count; d->compact_count += tsk->delays->compact_count; d->wpcopy_count += tsk->delays->wpcopy_count; + d->irq_count += tsk->delays->irq_count; raw_spin_unlock_irqrestore(&tsk->delays->lock, flags); return 0; @@ -274,3 +277,14 @@ void __delayacct_wpcopy_end(void) ¤t->delays->wpcopy_delay, ¤t->delays->wpcopy_count); } + +void __delayacct_irq(struct task_struct *task, u32 delta) +{ + unsigned long flags; + + raw_spin_lock_irqsave(&task->delays->lock, flags); + task->delays->irq_delay += delta; + task->delays->irq_count++; + raw_spin_unlock_irqrestore(&task->delays->lock, flags); +} + diff --git a/kernel/hung_task.c b/kernel/hung_task.c index 322813366c6c..9a24574988d2 100644 --- a/kernel/hung_task.c +++ b/kernel/hung_task.c @@ -28,7 +28,7 @@ /* * The number of tasks checked: */ -int __read_mostly sysctl_hung_task_check_count = PID_MAX_LIMIT; +static int __read_mostly sysctl_hung_task_check_count = PID_MAX_LIMIT; /* * Limit number of tasks checked in a batch. @@ -47,9 +47,9 @@ unsigned long __read_mostly sysctl_hung_task_timeout_secs = CONFIG_DEFAULT_HUNG_ /* * Zero (default value) means use sysctl_hung_task_timeout_secs: */ -unsigned long __read_mostly sysctl_hung_task_check_interval_secs; +static unsigned long __read_mostly sysctl_hung_task_check_interval_secs; -int __read_mostly sysctl_hung_task_warnings = 10; +static int __read_mostly sysctl_hung_task_warnings = 10; static int __read_mostly did_panic; static bool hung_task_show_lock; @@ -72,8 +72,8 @@ static unsigned int __read_mostly sysctl_hung_task_all_cpu_backtrace; * Should we panic (and reboot, if panic_timeout= is set) when a * hung task is detected: */ -unsigned int __read_mostly sysctl_hung_task_panic = - IS_ENABLED(CONFIG_BOOTPARAM_HUNG_TASK_PANIC); +static unsigned int __read_mostly sysctl_hung_task_panic = + IS_ENABLED(CONFIG_BOOTPARAM_HUNG_TASK_PANIC); static int hung_task_panic(struct notifier_block *this, unsigned long event, void *ptr) diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c index f1a0e4e3fb5c..f989f5f1933b 100644 --- a/kernel/kexec_file.c +++ b/kernel/kexec_file.c @@ -65,7 +65,7 @@ int kexec_image_probe_default(struct kimage *image, void *buf, return ret; } -void *kexec_image_load_default(struct kimage *image) +static void *kexec_image_load_default(struct kimage *image) { if (!image->fops || !image->fops->load) return ERR_PTR(-ENOEXEC); @@ -249,8 +249,8 @@ kimage_file_prepare_segments(struct kimage *image, int kernel_fd, int initrd_fd, /* IMA needs to pass the measurement list to the next kernel. */ ima_add_kexec_buffer(image); - /* Call arch image load handlers */ - ldata = arch_kexec_kernel_image_load(image); + /* Call image load handler */ + ldata = kexec_image_load_default(image); if (IS_ERR(ldata)) { ret = PTR_ERR(ldata); diff --git a/kernel/notifier.c b/kernel/notifier.c index d353e4b5402d..b3ce28f39eb6 100644 --- a/kernel/notifier.c +++ b/kernel/notifier.c @@ -7,6 +7,9 @@ #include <linux/vmalloc.h> #include <linux/reboot.h> +#define CREATE_TRACE_POINTS +#include <trace/events/notifier.h> + /* * Notifier list for kernel code which wants to be called * at shutdown. This is used to stop any idling DMA operations @@ -37,6 +40,7 @@ static int notifier_chain_register(struct notifier_block **nl, } n->next = *nl; rcu_assign_pointer(*nl, n); + trace_notifier_register((void *)n->notifier_call); return 0; } @@ -46,6 +50,7 @@ static int notifier_chain_unregister(struct notifier_block **nl, while ((*nl) != NULL) { if ((*nl) == n) { rcu_assign_pointer(*nl, n->next); + trace_notifier_unregister((void *)n->notifier_call); return 0; } nl = &((*nl)->next); @@ -84,6 +89,7 @@ static int notifier_call_chain(struct notifier_block **nl, continue; } #endif + trace_notifier_run((void *)nb->notifier_call); ret = nb->notifier_call(nb, val, v); if (nr_calls) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 143e46bd2a68..8d2b6742d02c 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -704,6 +704,7 @@ static void update_rq_clock_task(struct rq *rq, s64 delta) rq->prev_irq_time += irq_delta; delta -= irq_delta; psi_account_irqtime(rq->curr, irq_delta); + delayacct_irq(rq->curr, irq_delta); #endif #ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING if (static_key_false((¶virt_steal_rq_enabled))) { |