diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-10-02 12:17:24 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-10-02 12:17:24 -0700 |
| commit | 3f1fe48a36b0b6722dc3fd421d93512bac138e9a (patch) | |
| tree | b767d7f6e26bc64334d3f14f8422d187239dc45d /tools/perf/ui/progress.c | |
| download | linux-stable-3f1fe48a36b0b6722dc3fd421d93512bac138e9a.tar.gz linux-stable-3f1fe48a36b0b6722dc3fd421d93512bac138e9a.zip | |
Merge tag 'io_uring-7.3-20261002' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linuxgrafted
Pull io_uring fixes from Jens Axboe:
- Fix a task_work add use-after-free with SQPOLL.
The sqpoll thread could pop and complete the last request while
io_req_normal_work_add() was still looking at them after the mpscq
push.
Use the same approach as DEFER_TASKRUN to protect from that, holding
an RCU read lock across the add, and have exit wait for an RCU grace
period for SQPOLL rings as well.
- CQE32 ring fixes: correct the free entry check for 32b CQEs, zero the
big_cqe for aux CQEs, and only post the dummy skip CQE on CQE_MIXED
rings
- Mark the source filter table as COW when cloning bpf filters, so
registering another filter on the source doesn't modify the shared
table in place
- Initialize the task context before running the BPF loop
- Requeue zcrx multishot receives stopped by a local resource
- End a TX_TIMESTAMP multishot cmd when the CQ is full (lollipopkit)
* tag 'io_uring-7.3-20261002' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring: fix task_work add use-after-free with SQPOLL
io_uring/cmd_net: end TX_TIMESTAMP multishot when the CQ is full
io_uring/zcrx: requeue multishot receives stopped by a local resource
io_uring: initialize task context before running the BPF loop
io_uring: zero big_cqe for aux CQEs on CQE32 rings
io_uring: fix free entry check for 32b CQEs on CQE32 rings
io_uring: only post the dummy skip CQE on CQE_MIXED rings
io_uring/bpf_filter: mark source as COW when cloning filters
Diffstat (limited to 'tools/perf/ui/progress.c')
| -rw-r--r-- | tools/perf/ui/progress.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/tools/perf/ui/progress.c b/tools/perf/ui/progress.c new file mode 100644 index 000000000..99d60223c --- /dev/null +++ b/tools/perf/ui/progress.c @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/kernel.h> +#include "progress.h" + +static void null_progress__update(struct ui_progress *p __maybe_unused) +{ +} + +static struct ui_progress_ops null_progress__ops = +{ + .update = null_progress__update, +}; + +struct ui_progress_ops *ui_progress__ops = &null_progress__ops; + +void ui_progress__update(struct ui_progress *p, u64 adv) +{ + u64 last = p->curr; + + p->curr += adv; + + if (p->curr >= p->next) { + u64 nr = DIV_ROUND_UP(p->curr - last, p->step); + + p->next += nr * p->step; + ui_progress__ops->update(p); + } +} + +void __ui_progress__init(struct ui_progress *p, u64 total, + const char *title, bool size) +{ + p->curr = 0; + p->next = p->step = total / 16 ?: 1; + p->total = total; + p->title = title; + p->size = size; + + if (ui_progress__ops->init) + ui_progress__ops->init(p); +} + +void ui_progress__finish(void) +{ + if (ui_progress__ops->finish) + ui_progress__ops->finish(); +} |
