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f292e8730a
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmBCYeIQHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgpisOD/9bSFR7gRqO9oIy6/PEveRI4PWDujjcXgRZ 6jxQnfFUrNQsXcXIlHO4HUDG7DVX/isxdk/YVGhVfuKoco/a0XyYAALH5SVy77T+ hDdWCIJBXgxnfAvv+xMBQDEwlz+pdaOLfOVaGMRAp3akuVTBMA+ZE940Lc81kBaU bTGev+BzPUsUE7n6ebPdhIQDA6LB02e7kaBZsRDwjsABJuD3o4O1jOAtZyqpPRsW nADvxsrlMxB3RN97iokinBXV426iAQ/nBDYVDVnWpbckD7Ti4f6r2ohku0qEdhZS XrTF+1mzEqdmvMLl1YQ/GGpH7ReOLHN78aj4BaG49+pryfkaFe50AHr7frGqKLms DWymTJnpdJSTNT0Z2GRLNrnWHa3YgeuPMdhlIPfihnZBXhZ7p6X5iNpQ69jd93P3 zLXMJ0RKpkl6bmV+Pk4kCqUfz1BV3sUqG9euLdTq+3uBRA0/B5ktPosyH2DGqUYa n9aEUHslwHUF+Deu/S9RmVzhTjuD0IRbURSeayimFFe71kHhKsHShOKQMUkhu6zQ AMsQRq9VrWy/3x3C+qpcbEJ3BIqyGLbiQByOBx96kg9Zk14io3GEmSlqZcxbsKTq /JXjanaEcUwtKKccOC6g+O+G7VlskO9gLi/Fj/x98R92UBEqpEtVZb8MLCdpiLY/ SHJHbC7Fpw== =w0Sf -----END PGP SIGNATURE----- Merge tag 'io_uring-5.12-2021-03-05' of git://git.kernel.dk/linux-block Pull io_uring fixes from Jens Axboe: "A bit of a mix between fallout from the worker change, cleanups and reductions now possible from that change, and fixes in general. In detail: - Fully serialize manager and worker creation, fixing races due to that. - Clean up some naming that had gone stale. - SQPOLL fixes. - Fix race condition around task_work rework that went into this merge window. - Implement unshare. Used for when the original task does unshare(2) or setuid/seteuid and friends, drops the original workers and forks new ones. - Drop the only remaining piece of state shuffling we had left, which was cred. Move it into issue instead, and we can drop all of that code too. - Kill f_op->flush() usage. That was such a nasty hack that we had out of necessity, we no longer need it. - Following from ->flush() removal, we can also drop various bits of ctx state related to SQPOLL and cancelations. - Fix an issue with IOPOLL retry, which originally was fallout from a filemap change (removing iov_iter_revert()), but uncovered an issue with iovec re-import too late. - Fix an issue with system suspend. - Use xchg() for fallback work, instead of cmpxchg(). - Properly destroy io-wq on exec. - Add create_io_thread() core helper, and use that in io-wq and io_uring. This allows us to remove various silly completion events related to thread setup. - A few error handling fixes. This should be the grunt of fixes necessary for the new workers, next week should be quieter. We've got a pending series from Pavel on cancelations, and how tasks and rings are indexed. Outside of that, should just be minor fixes. Even with these fixes, we're still killing a net ~80 lines" * tag 'io_uring-5.12-2021-03-05' of git://git.kernel.dk/linux-block: (41 commits) io_uring: don't restrict issue_flags for io_openat io_uring: make SQPOLL thread parking saner io-wq: kill hashed waitqueue before manager exits io_uring: clear IOCB_WAITQ for non -EIOCBQUEUED return io_uring: don't keep looping for more events if we can't flush overflow io_uring: move to using create_io_thread() kernel: provide create_io_thread() helper io_uring: reliably cancel linked timeouts io_uring: cancel-match based on flags io-wq: ensure all pending work is canceled on exit io_uring: ensure that threads freeze on suspend io_uring: remove extra in_idle wake up io_uring: inline __io_queue_async_work() io_uring: inline io_req_clean_work() io_uring: choose right tctx->io_wq for try cancel io_uring: fix -EAGAIN retry with IOPOLL io-wq: fix error path leak of buffered write hash map io_uring: remove sqo_task io_uring: kill sqo_dead and sqo submission halting io_uring: ignore double poll add on the same waitqueue head ... |
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bpf | ||
cgroup | ||
configs | ||
debug | ||
dma | ||
entry | ||
events | ||
gcov | ||
irq | ||
kcsan | ||
livepatch | ||
locking | ||
power | ||
printk | ||
rcu | ||
sched | ||
time | ||
trace | ||
.gitignore | ||
acct.c | ||
async.c | ||
audit_fsnotify.c | ||
audit_tree.c | ||
audit_watch.c | ||
audit.c | ||
audit.h | ||
auditfilter.c | ||
auditsc.c | ||
backtracetest.c | ||
bounds.c | ||
capability.c | ||
compat.c | ||
configs.c | ||
context_tracking.c | ||
cpu_pm.c | ||
cpu.c | ||
crash_core.c | ||
crash_dump.c | ||
cred.c | ||
delayacct.c | ||
dma.c | ||
exec_domain.c | ||
exit.c | ||
extable.c | ||
fail_function.c | ||
fork.c | ||
freezer.c | ||
futex.c | ||
gen_kheaders.sh | ||
groups.c | ||
hung_task.c | ||
iomem.c | ||
irq_work.c | ||
jump_label.c | ||
kallsyms.c | ||
kcmp.c | ||
Kconfig.freezer | ||
Kconfig.hz | ||
Kconfig.locks | ||
Kconfig.preempt | ||
kcov.c | ||
kexec_core.c | ||
kexec_elf.c | ||
kexec_file.c | ||
kexec_internal.h | ||
kexec.c | ||
kheaders.c | ||
kmod.c | ||
kprobes.c | ||
ksysfs.c | ||
kthread.c | ||
latencytop.c | ||
Makefile | ||
module_signature.c | ||
module_signing.c | ||
module-internal.h | ||
module.c | ||
notifier.c | ||
nsproxy.c | ||
padata.c | ||
panic.c | ||
params.c | ||
pid_namespace.c | ||
pid.c | ||
profile.c | ||
ptrace.c | ||
range.c | ||
reboot.c | ||
regset.c | ||
relay.c | ||
resource_kunit.c | ||
resource.c | ||
rseq.c | ||
scftorture.c | ||
scs.c | ||
seccomp.c | ||
signal.c | ||
smp.c | ||
smpboot.c | ||
smpboot.h | ||
softirq.c | ||
stackleak.c | ||
stacktrace.c | ||
static_call.c | ||
stop_machine.c | ||
sys_ni.c | ||
sys.c | ||
sysctl-test.c | ||
sysctl.c | ||
task_work.c | ||
taskstats.c | ||
test_kprobes.c | ||
torture.c | ||
tracepoint.c | ||
tsacct.c | ||
ucount.c | ||
uid16.c | ||
uid16.h | ||
umh.c | ||
up.c | ||
user_namespace.c | ||
user-return-notifier.c | ||
user.c | ||
usermode_driver.c | ||
utsname_sysctl.c | ||
utsname.c | ||
watch_queue.c | ||
watchdog_hld.c | ||
watchdog.c | ||
workqueue_internal.h | ||
workqueue.c |