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Andrii Nakryiko f4b4eee616 bpf: add support for fixed-size memory pointer returns for kfuncs 
Support direct fixed-size (and for now, read-only) memory access when
kfunc's return type is a pointer to non-struct type. Calculate type size
and let BPF program access that many bytes directly. This is crucial for
numbers iterator.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20230302235015.2044271-13-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-03-04 11:14:32 -08:00
..
bpf
bpf: add support for fixed-size memory pointer returns for kfuncs
2023-03-04 11:14:32 -08:00
cgroup
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2023-02-21 18:24:12 -08:00
configs
mm, slob: rename CONFIG_SLOB to CONFIG_SLOB_DEPRECATED
2022-12-01 00:09:20 +01:00
debug
kdb: use srcu console list iterator
2022-12-02 11:25:00 +01:00
dma
dma-mapping: reject GFP_COMP for noncoherent allocations
2022-12-21 08:45:38 +01:00
entry
entry: kmsan: introduce kmsan_unpoison_entry_regs()
2022-10-03 14:03:25 -07:00
events
Merge tag 'perf-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-02-20 17:29:55 -08:00
futex
Merge tag 'locking_urgent_for_v6.2_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-01-01 11:15:05 -08:00
gcov
gcov: add support for checksum field
2022-12-21 14:31:52 -08:00
irq
Merge tag 'irq-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-02-21 10:03:48 -08:00
kcsan
kcsan: test: don't put the expect array on the stack
2023-01-02 08:59:33 -08:00
livepatch
livepatch: Improve the search performance of module_kallsyms_on_each_symbol()
2023-01-19 17:07:15 -08:00
locking
Merge tag 'rcu.2023.02.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
2023-02-21 10:45:51 -08:00
module
Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2023-01-28 00:00:14 -08:00
power
Merge branches 'powercap', 'pm-domains', 'pm-em' and 'pm-opp'
2023-02-15 20:06:26 +01:00
printk
Merge tag 'v6.2-rc6' into sched/core, to pick up fixes
2023-01-31 15:01:20 +01:00
rcu
Merge branch 'stall.2023.01.09a' into HEAD
2023-02-02 16:40:07 -08:00
sched
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2023-02-21 18:24:12 -08:00
time
Merge tag 'timers-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-02-21 09:45:13 -08:00
trace
bpf: Make bpf_get_current_[ancestor_]cgroup_id() available for all program types
2023-03-02 22:37:07 -08:00
.gitignore
…
acct.c
acct: fix potential integer overflow in encode_comp_t()
2022-11-30 16:13:18 -08:00
async.c
…
audit_fsnotify.c
audit: fix potential double free on error path from fsnotify_add_inode_mark
2022-08-22 18:50:06 -04:00
audit_tree.c
…
audit_watch.c
audit_init_parent(): constify path
2022-09-01 17:39:30 -04:00
audit.c
audit: use time_after to compare time
2022-08-29 19:47:03 -04:00
audit.h
audit: remove selinux_audit_rule_update() declaration
2022-09-07 11:30:15 -04:00
auditfilter.c
…
auditsc.c
Merge tag 'fsnotify_for_v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2023-02-20 12:38:27 -08:00
backtracetest.c
…
bounds.c
mm: multi-gen LRU: minimal implementation
2022-09-26 19:46:09 -07:00
capability.c
fs: port i_{g,u}id_into_vfs{g,u}id() to mnt_idmap
2023-01-19 09:24:29 +01:00
cfi.c
cfi: Switch to -fsanitize=kcfi
2022-09-26 10:13:13 -07:00
compat.c
…
configs.c
…
context_tracking.c
context_tracking: Fix noinstr vs KASAN
2023-01-13 11:48:18 +01:00
cpu_pm.c
cpuidle, cpu_pm: Remove RCU fiddling from cpu_pm_{enter,exit}()
2023-01-13 11:48:15 +01:00
cpu.c
cpu/hotplug: Do not bail-out in DYING/STARTING sections
2022-12-02 12:43:02 +01:00
crash_core.c
vmcoreinfo: warn if we exceed vmcoreinfo data size
2022-11-30 16:13:17 -08:00
crash_dump.c
…
cred.c
cred: Do not default to init_cred in prepare_kernel_cred()
2022-11-01 10:04:52 -07:00
delayacct.c
delayacct: support re-entrance detection of thrashing accounting
2022-09-26 19:46:07 -07:00
dma.c
…
exec_domain.c
…
exit.c
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2023-02-21 15:27:48 -08:00
extable.c
context_tracking: Take NMI eqs entrypoints over RCU
2022-07-05 13:32:59 -07:00
fail_function.c
fail_function: fix wrong use of fei_attr_remove()
2022-09-11 21:55:11 -07:00
fork.c
Merge tag 'sched-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-02-20 17:41:08 -08:00
freezer.c
freezer,sched: Rewrite core freezer logic
2022-09-07 21:53:50 +02:00
gen_kheaders.sh
kheaders: explicitly validate existence of cpio command
2023-01-18 16:34:04 +09:00
groups.c
security: Add LSM hook to setgroups() syscall
2022-07-15 18:21:49 +00:00
hung_task.c
sched: Fix more TASK_state comparisons
2022-09-30 16:50:39 +02:00
iomem.c
…
irq_work.c
…
jump_label.c
jump_label: Prevent key->enabled int overflow
2022-12-01 15:53:05 -08:00
kallsyms_internal.h
kallsyms: Reduce the memory occupied by kallsyms_seqs_of_names[]
2022-11-12 18:47:36 -08:00
kallsyms_selftest.c
kallsyms: Fix scheduling with interrupts disabled in self-test
2023-01-13 15:09:08 -08:00
kallsyms_selftest.h
kallsyms: Add self-test facility
2022-11-15 00:42:02 -08:00
kallsyms.c
kallsyms: Add self-test facility
2022-11-15 00:42:02 -08:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
kcov: kmsan: unpoison area->list in kcov_remote_area_put()
2022-10-03 14:03:23 -07:00
kexec_core.c
bpf: Add __bpf_kfunc tag to all kfuncs
2023-02-02 00:25:14 +01:00
kexec_elf.c
…
kexec_file.c
kexec: replace crash_mem_range with range
2022-11-18 13:55:07 -08:00
kexec_internal.h
panic, kexec: make __crash_kexec() NMI safe
2022-09-11 21:55:06 -07:00
kexec.c
panic, kexec: make __crash_kexec() NMI safe
2022-09-11 21:55:06 -07:00
kheaders.c
…
kmod.c
…
kprobes.c
kprobes: kretprobe events missing on 2-core KVM guest
2022-12-15 08:48:40 +09:00
ksysfs.c
kernel/ksysfs.c: export kernel cpu byteorder
2022-11-10 19:07:31 +01:00
kthread.c
Merge tag 'interrupting_kthread_stop-for-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2022-10-09 16:01:59 -07:00
latencytop.c
latencytop: use the last element of latency_record of system
2022-09-11 21:55:12 -07:00
Makefile
Merge tag 'hardening-v6.2-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2022-12-23 12:00:24 -08:00
module_signature.c
…
notifier.c
kernel/notifier: Remove CONFIG_SRCU
2023-02-02 16:26:06 -08:00
nsproxy.c
fs/exec: switch timens when a task gets a new mm
2022-10-25 15:15:52 -07:00
padata.c
Merge tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2022-12-19 12:33:32 -06:00
panic.c
cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG
2023-01-31 15:01:45 +01:00
params.c
Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2022-12-16 03:54:54 -08:00
pid_namespace.c
rcu-tasks: Fix synchronize_rcu_tasks() VS zap_pid_ns_processes()
2023-01-03 17:52:16 -08:00
pid.c
gfs2: Add glockfd debugfs file
2022-06-29 13:07:16 +02:00
profile.c
kernel/profile.c: simplify duplicated code in profile_setup()
2022-09-11 21:55:12 -07:00
ptrace.c
rseq: Introduce extensible rseq ABI
2022-12-27 12:52:10 +01:00
range.c
…
reboot.c
kernel/reboot: Add SYS_OFF_MODE_RESTART_PREPARE mode
2022-10-04 15:59:36 +02:00
regset.c
…
relay.c
relay: fix type mismatch when allocating memory in relay_create_buf()
2022-12-11 19:30:19 -08:00
resource_kunit.c
…
resource.c
Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2022-12-16 03:54:54 -08:00
rseq.c
rseq: Extend struct rseq with per-memory-map concurrency ID
2022-12-27 12:52:12 +01:00
scftorture.c
…
scs.c
scs: add support for dynamic shadow call stacks
2022-11-09 18:06:35 +00:00
seccomp.c
seccomp: fix kernel-doc function name warning
2023-01-13 17:01:06 -08:00
signal.c
sched: Introduce per-memory-map concurrency ID
2022-12-27 12:52:11 +01:00
smp.c
Merge tag 'bitmap-6.1-rc1' of https://github.com/norov/linux
2022-10-10 12:49:34 -07:00
smpboot.c
smpboot: use atomic_try_cmpxchg in cpu_wait_death and cpu_report_death
2022-09-11 21:55:10 -07:00
smpboot.h
…
softirq.c
context_tracking: Take IRQ eqs entrypoints over RCU
2022-07-05 13:32:59 -07:00
stackleak.c
stackleak: add on/off stack variants
2022-05-08 01:33:09 -07:00
stacktrace.c
…
static_call_inline.c
static_call: Add call depth tracking support
2022-10-17 16:41:16 +02:00
static_call.c
…
stop_machine.c
Merge tag 'sched-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2022-05-24 11:11:13 -07:00
sys_ni.c
kernel/sys_ni: add compat entry for fadvise64_64
2022-08-20 15:17:45 -07:00
sys.c
prlimit: do_prlimit needs to have a speculation check
2023-01-21 16:14:17 +01:00
sysctl-test.c
kernel/sysctl-test: use SYSCTL_{ZERO/ONE_HUNDRED} instead of i_{zero/one_hundred}
2022-09-08 16:56:45 -07:00
sysctl.c
Merge tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-12-13 19:29:45 -08:00
task_work.c
task_work: use try_cmpxchg in task_work_add, task_work_cancel_match and task_work_run
2022-09-11 21:55:10 -07:00
taskstats.c
genetlink: start to validate reserved header bytes
2022-08-29 12:47:15 +01:00
torture.c
torture: Fix hang during kthread shutdown phase
2023-01-05 12:10:35 -08:00
tracepoint.c
tracepoint: Optimize the critical region of mutex_lock in tracepoint_module_coming()
2022-09-26 13:01:18 -04:00
tsacct.c
…
ucount.c
ucounts: Split rlimit and ucount values and max values
2022-05-18 18:24:57 -05:00
uid16.c
…
uid16.h
…
umh.c
freezer,umh: Fix call_usermode_helper_exec() vs SIGKILL
2023-02-13 16:36:14 +01:00
up.c
…
user_namespace.c
Merge tag 'ucount-rlimits-cleanups-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2022-10-09 16:24:05 -07:00
user-return-notifier.c
…
user.c
kernel/user: Allow user_struct::locked_vm to be usable for iommufd
2022-11-30 20:16:49 -04:00
usermode_driver.c
blob_to_mnt(): kern_unmount() is needed to undo kern_mount()
2022-05-19 23:25:47 -04:00
utsname_sysctl.c
kernel/utsname_sysctl.c: Fix hostname polling
2022-10-23 12:01:01 -07:00
utsname.c
…
watch_queue.c
Merge tag 'docs-6.0' of git://git.lwn.net/linux
2022-08-02 19:24:24 -07:00
watchdog_hld.c
Revert "printk: add functions to prefer direct printing"
2022-06-23 18:41:40 +02:00
watchdog.c
Merge tag 'powerpc-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2022-08-06 16:38:17 -07:00
workqueue_internal.h
…
workqueue.c
workqueue: Fold rebind_worker() within rebind_workers()
2023-01-13 07:50:40 -10:00