Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Alexei Starovoitov 96049f3afd bpf: introduce BPF_F_LOCK flag ... Introduce BPF_F_LOCK flag for map_lookup and map_update syscall commands and for map_update() helper function. In all these cases take a lock of existing element (which was provided in BTF description) before copying (in or out) the rest of map value. Implementation details that are part of uapi: Array: The array map takes the element lock for lookup/update. Hash: hash map also takes the lock for lookup/update and tries to avoid the bucket lock. If old element exists it takes the element lock and updates the element in place. If element doesn't exist it allocates new one and inserts into hash table while holding the bucket lock. In rare case the hashmap has to take both the bucket lock and the element lock to update old value in place. Cgroup local storage: It is similar to array. update in place and lookup are done with lock taken. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>		2019-02-01 20:55:39 +01:00
..
bpf	bpf: introduce BPF_F_LOCK flag	2019-02-01 20:55:39 +01:00
cgroup	bpf, cgroups: clean up kerneldoc warnings	2019-01-31 10:32:01 +01:00
configs	kvm_config: add CONFIG_VIRTIO_MENU	2018-10-24 20:55:56 -04:00
debug	kdb: use bool for binary state indicators	2018-12-30 08:31:52 +00:00
dma	swiotlb: clear io_tlb_start and io_tlb_end in swiotlb_exit	2019-01-16 09:59:17 -05:00
events	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
gcov
irq	genirq/irqdesc: Fix double increment in alloc_descs()	2019-01-18 00:43:09 +01:00
livepatch	livepatch: Replace synchronize_sched() with synchronize_rcu()	2018-12-01 12:38:50 -08:00
locking	locking/rwsem: Fix (possible) missed wakeup	2019-01-21 11:15:39 +01:00
power	mm: convert totalram_pages and totalhigh_pages variables to atomic	2018-12-28 12:11:47 -08:00
printk	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
rcu	rcutorture: Don't do busted forward-progress testing	2018-12-01 12:45:42 -08:00
sched	sched/wake_q: Fix wakeup ordering for wake_q	2019-01-21 11:15:37 +01:00
time	posix-cpu-timers: Unbreak timer rearming	2019-01-15 16:34:37 +01:00
trace	tracing/kprobes: Fix NULL pointer dereference in trace_kprobe_create()	2019-01-15 11:33:45 -05:00
.gitignore
acct.c
async.c
audit.c	audit: remove duplicated include from audit.c	2018-12-14 12:09:30 -05:00
audit.h	audit: use current whenever possible	2018-11-26 18:41:21 -05:00
audit_fsnotify.c	audit: minimize our use of audit_log_format()	2018-11-26 18:40:00 -05:00
audit_tree.c	audit: minimize our use of audit_log_format()	2018-11-26 18:40:00 -05:00
audit_watch.c	audit: minimize our use of audit_log_format()	2018-11-26 18:40:00 -05:00
auditfilter.c
auditsc.c	audit: use current whenever possible	2018-11-26 18:41:21 -05:00
backtracetest.c
bounds.c	kbuild: fix kernel/bounds.c 'W=1' warning	2018-10-31 08:54:14 -07:00
capability.c
compat.c	make 'user_access_begin()' do 'access_ok()'	2019-01-04 12:56:09 -08:00
configs.c
context_tracking.c
cpu.c	x86/speculation: Rework SMT state change	2018-11-28 11:57:07 +01:00
cpu_pm.c
crash_core.c	kernel/crash_core.c: print timestamp using time64_t	2018-08-22 10:52:47 -07:00
crash_dump.c
cred.c	cred: export get_task_cred().	2018-12-19 13:52:44 -05:00
delayacct.c	delayacct: track delays from thrashing cache pages	2018-10-26 16:26:32 -07:00
dma.c
elfcore.c
exec_domain.c
exit.c	sched/wait: Fix rcuwait_wake_up() ordering	2019-01-21 11:15:36 +01:00
extable.c
fail_function.c	kernel/fail_function.c: remove meaningless null pointer check before debugfs_remove_recursive	2018-10-31 08:54:12 -07:00
fork.c	Merge branch 'akpm' (patches from Andrew)	2019-01-08 18:58:29 -08:00
freezer.c
futex.c	futex: Fix (possible) missed wakeup	2019-01-21 11:15:38 +01:00
groups.c
hung_task.c	kernel/hung_task.c: break RCU locks based on jiffies	2019-01-04 13:13:45 -08:00
iomem.c
irq_work.c
jump_label.c	jump_label: move 'asm goto' support test to Kconfig	2019-01-06 09:46:51 +09:00
kallsyms.c	kallsyms: reduce size a little on 64-bit	2018-09-10 22:54:33 +09:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks	bpf: introduce bpf_spin_lock	2019-02-01 20:55:38 +01:00
Kconfig.preempt	kconfig: warn no new line at end of file	2018-12-15 17:44:35 +09:00
kcov.c	kernel/kcov.c: mark write_comp_data() as notrace	2019-01-04 13:13:47 -08:00
kexec.c
kexec_core.c	mm: convert totalram_pages and totalhigh_pages variables to atomic	2018-12-28 12:11:47 -08:00
kexec_file.c	kexec_file: kexec_walk_memblock() only walks a dedicated region at kdump	2018-12-06 14:38:50 +00:00
kexec_internal.h
kmod.c
kprobes.c	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-12-26 14:45:18 -08:00
ksysfs.c
kthread.c
latencytop.c
Makefile	kbuild: change filechk to surround the given command with { }	2019-01-06 09:46:51 +09:00
memremap.c	mm/hmm: fix memremap.h, move dev_page_fault_t callback to hmm	2018-12-28 12:11:52 -08:00
module-internal.h
module.c	jump_label: move 'asm goto' support test to Kconfig	2019-01-06 09:46:51 +09:00
module_signing.c	modsign: use all trusted keys to verify module signature	2018-11-07 14:41:41 +01:00
notifier.c
nsproxy.c
padata.c	padata: clean an indentation issue, remove extraneous space	2018-11-16 14:11:04 +08:00
panic.c	kernel/sysctl: add panic_print into sysctl	2019-01-04 13:13:47 -08:00
params.c
pid.c	Fix failure path in alloc_pid()	2018-12-28 12:42:30 -08:00
pid_namespace.c	signal: Use group_send_sig_info to kill all processes in a pid namespace	2018-09-16 16:08:25 +02:00
profile.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
ptrace.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
range.c
reboot.c	kernel/reboot.c: export pm_power_off_prepare	2018-09-11 16:13:24 +01:00
relay.c
resource.c	kernel, resource: check for IORESOURCE_SYSRAM in release_mem_region_adjustable	2018-12-28 12:11:49 -08:00
rseq.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
seccomp.c	seccomp: fix UAF in user-trap code	2019-01-15 09:43:12 -08:00
signal.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
smp.c	smp,cpumask: introduce on_each_cpu_cond_mask	2018-10-09 16:51:11 +02:00
smpboot.c
smpboot.h
softirq.c	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-10-25 11:43:47 -07:00
stackleak.c	stackleak: Mark stackleak_track_stack() as notrace	2018-12-05 19:31:44 -08:00
stacktrace.c
stop_machine.c
sys.c	kernel/sys.c: Clarify that UNAME26 does not generate unique versions anymore	2019-01-14 10:38:03 +12:00
sys_ni.c	y2038: socket: Add compat_sys_recvmmsg_time64	2018-12-18 16:13:04 +01:00
sysctl.c	kernel/sysctl: add panic_print into sysctl	2019-01-04 13:13:47 -08:00
sysctl_binary.c	kernel/sysctl: add panic_print into sysctl	2019-01-04 13:13:47 -08:00
task_work.c
taskstats.c
test_kprobes.c
torture.c	torture: Remove unnecessary "ret" variables	2018-12-01 12:45:35 -08:00
tracepoint.c	tracing: Replace synchronize_sched() and call_rcu_sched()	2018-11-27 09:21:41 -08:00
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c	umh: add exit routine for UMH process	2019-01-11 18:05:40 -08:00
up.c	smp,cpumask: introduce on_each_cpu_cond_mask	2018-10-09 16:51:11 +02:00
user-return-notifier.c
user.c	userns: use irqsave variant of refcount_dec_and_lock()	2018-08-22 10:52:47 -07:00
user_namespace.c	userns: also map extents in the reverse map to kernel IDs	2018-11-07 23:51:16 -06:00
utsname.c
utsname_sysctl.c
watchdog.c	watchdog: Mark watchdog touch functions as notrace	2018-08-30 12:56:40 +02:00
watchdog_hld.c	watchdog: Mark watchdog touch functions as notrace	2018-08-30 12:56:40 +02:00
workqueue.c	workqueue: Replace call_rcu_sched() with call_rcu()	2018-11-27 09:21:44 -08:00
workqueue_internal.h