Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
John Fastabend ffa3566001 sockmap: convert refcnt to an atomic refcnt ... The sockmap refcnt up until now has been wrapped in the sk_callback_lock(). So its not actually needed any locking of its own. The counter itself tracks the lifetime of the psock object. Sockets in a sockmap have a lifetime that is independent of the map they are part of. This is possible because a single socket may be in multiple maps. When this happens we can only release the psock data associated with the socket when the refcnt reaches zero. There are three possible delete sock reference decrement paths first through the normal sockmap process, the user deletes the socket from the map. Second the map is removed and all sockets in the map are removed, delete path is similar to case 1. The third case is an asyncronous socket event such as a closing the socket. The last case handles removing sockets that are no longer available. For completeness, although inc does not pose any problems in this patch series, the inc case only happens when a psock is added to a map. Next we plan to add another socket prog type to handle policy and monitoring on the TX path. When we do this however we will need to keep a reference count open across the sendmsg/sendpage call and holding the sk_callback_lock() here (on every send) seems less than ideal, also it may sleep in cases where we hit memory pressure. Instead of dealing with these issues in some clever way simply make the reference counting a refcnt_t type and do proper atomic ops. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>		2018-03-19 21:14:38 +01:00
..
bpf	sockmap: convert refcnt to an atomic refcnt	2018-03-19 21:14:38 +01:00
cgroup	kernel/cpuset: current_cpuset_is_being_rebound can be boolean	2018-02-06 18:32:47 -08:00
configs	KVM changes for 4.16	2018-02-10 13:16:35 -08:00
debug	signal: Simplify and fix kdb_send_sig	2018-01-03 18:01:08 -06:00
events	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
gcov	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
irq	genirq/matrix: Handle CPU offlining proper	2018-02-22 22:05:43 +01:00
livepatch	Merge branch 'for-4.16/remove-immediate' into for-linus	2018-01-31 16:36:38 +01:00
locking	locking/qspinlock: Ensure node->count is updated before initialising node	2018-02-13 14:50:14 +01:00
power	x86/power: Fix swsusp_arch_resume prototype	2018-02-02 23:33:50 +01:00
printk	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk	2018-03-01 10:06:39 -08:00
rcu	SCSI misc on 20180131	2018-01-31 11:23:28 -08:00
sched	sched/cpufreq: Remove unused SUGOV_KTHREAD_PRIORITY macro	2018-02-13 13:04:03 +01:00
time	timers: Forward timer base before migrating timers	2018-02-28 23:34:33 +01:00
trace	bpf: add support to read sample address in bpf program	2018-03-08 02:22:34 +01:00
.gitignore
acct.c	kernel/acct.c: fix the acct->needcheck check in check_free_space()	2018-01-04 16:45:09 -08:00
async.c	kernel/async.c: revert "async: simplify lowest_in_progress()"	2018-02-06 18:32:44 -08:00
audit.c	net: Convert audit_net_ops	2018-02-13 10:36:06 -05:00
audit.h	audit/stable-4.15 PR 20171113	2017-11-15 13:28:48 -08:00
audit_fsnotify.c
audit_tree.c	Merge branch 'fsnotify' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2017-11-14 14:08:20 -08:00
audit_watch.c	audit/stable-4.13 PR 20170816	2017-08-16 16:48:34 -07:00
auditfilter.c	audit: filter PATH records keyed on filesystem magic	2017-11-10 16:08:56 -05:00
auditsc.c	audit/stable-4.15 PR 20171113	2017-11-15 13:28:48 -08:00
backtracetest.c
bounds.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
capability.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
compat.c	cpumask: make cpumask_size() return "unsigned int"	2018-02-06 18:32:45 -08:00
configs.c
context_tracking.c
cpu.c	Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-12-31 12:30:34 -08:00
cpu_pm.c
crash_core.c	kdump: write correct address of mem_section into vmcoreinfo	2018-01-13 10:42:48 -08:00
crash_dump.c
cred.c
delayacct.c	delayacct: Account blkio completion on the correct task	2018-01-16 03:29:36 +01:00
dma.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
elfcore.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
exec_domain.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
exit.c	kernel/exit.c: export abort() to modules	2018-01-04 16:45:09 -08:00
extable.c	extable: Make init_kernel_text() global	2018-02-21 16:54:06 +01:00
fail_function.c	error-injection: Support fault injection framework	2018-01-12 17:33:38 -08:00
fork.c	include/linux/sched/mm.h: re-inline mmdrop()	2018-02-21 15:35:42 -08:00
freezer.c
futex.c	pids: introduce find_get_task_by_vpid() helper	2018-02-06 18:32:46 -08:00
futex_compat.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
groups.c	kernel: make groups_sort calling a responsibility group_info allocators	2017-12-14 16:00:49 -08:00
hung_task.c
irq_work.c	irq/work: Improve the flag definitions	2018-01-08 19:43:15 +01:00
jump_label.c	extable: Make init_kernel_text() global	2018-02-21 16:54:06 +01:00
kallsyms.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk	2018-02-01 13:36:15 -08:00
kcmp.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c	kcov: detect double association with a single task	2018-02-06 18:32:46 -08:00
kexec.c
kexec_core.c
kexec_file.c	resource: Provide resource struct in resource walk callback	2017-11-07 15:35:57 +01:00
kexec_internal.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
kmod.c	kmod: move #ifdef CONFIG_MODULES wrapper to Makefile	2017-09-08 18:26:51 -07:00
kprobes.c	kprobes: Propagate error from disarm_kprobe_ftrace()	2018-02-16 09:12:58 +01:00
ksysfs.c
kthread.c	treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts	2017-11-21 16:35:54 -08:00
latencytop.c
Makefile	error-injection: Support fault injection framework	2018-01-12 17:33:38 -08:00
memremap.c	memremap: fix softlockup reports at teardown	2018-03-02 19:34:50 -08:00
module-internal.h
module.c	Modules updates for v4.16	2018-02-07 14:29:34 -08:00
module_signing.c
notifier.c
nsproxy.c
padata.c	padata: add SPDX identifier	2018-01-05 18:43:00 +11:00
panic.c	kernel/panic.c: add TAINT_AUX	2017-11-17 16:10:04 -08:00
params.c	kernel/params.c: improve STANDARD_PARAM_DEF readability	2017-10-03 17:54:26 -07:00
pid.c	pids: introduce find_get_task_by_vpid() helper	2018-02-06 18:32:46 -08:00
pid_namespace.c	pid: remove pidhash	2017-11-17 16:10:04 -08:00
profile.c
ptrace.c	pids: introduce find_get_task_by_vpid() helper	2018-02-06 18:32:46 -08:00
range.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
reboot.c	kernel/reboot.c: add devm_register_reboot_notifier()	2017-11-17 16:10:04 -08:00
relay.c	kernel/relay.c: limit kmalloc size to KMALLOC_MAX_SIZE	2018-02-21 15:35:43 -08:00
resource.c	Merge branch 'akpm' (patches from Andrew)	2018-02-06 22:15:42 -08:00
seccomp.c	- Fix seccomp GET_METADATA to deal with field sizes correctly (Tycho Andersen)	2018-02-22 10:50:24 -08:00
signal.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching	2018-01-31 13:02:18 -08:00
smp.c	smp/core: Use lockdep to assert IRQs are disabled/enabled	2017-11-08 11:13:50 +01:00
smpboot.c	watchdog/core, powerpc: Lock cpus across reconfiguration	2017-10-04 10:53:54 +02:00
smpboot.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
softirq.c	softirq: Eliminate cond_resched_rcu_qs() in favor of cond_resched()	2017-12-04 10:28:58 -08:00
stacktrace.c
stop_machine.c
sys.c	fix typo in assignment of fs default overflow gid	2017-12-14 16:01:45 -06:00
sys_ni.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
sysctl.c	pipe: reject F_SETPIPE_SZ with size over UINT_MAX	2018-02-06 18:32:47 -08:00
sysctl_binary.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
task_work.c	locking/barriers: Convert users of lockless_dereference() to READ_ONCE()	2017-12-17 13:57:15 +01:00
taskstats.c	pids: introduce find_get_task_by_vpid() helper	2018-02-06 18:32:46 -08:00
test_kprobes.c	kprobes: Disable the jprobes test code	2017-10-20 11:02:54 +02:00
torture.c	torture: Save a line in stutter_wait(): while -> for	2017-12-11 09:18:30 -08:00
tracepoint.c	tracepoint: Remove smp_read_barrier_depends() from comment	2017-12-04 10:52:56 -08:00
tsacct.c
ucount.c
uid16.c	kernel: make groups_sort calling a responsibility group_info allocators	2017-12-14 16:00:49 -08:00
umh.c	kernel/umh.c: optimize 'proc_cap_handler()'	2017-11-17 16:10:01 -08:00
up.c	smp: Avoid using two cache lines for struct call_single_data	2017-08-29 15:14:38 +02:00
user-return-notifier.c
user.c	efivarfs: Limit the rate for non-root to read files	2018-02-22 10:21:02 -08:00
user_namespace.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2017-11-16 12:20:15 -08:00
utsname.c
utsname_sysctl.c
watchdog.c	Merge branch 'linus' into sched/core, to pick up fixes	2017-11-08 10:17:15 +01:00
watchdog_hld.c	Merge branch 'linus' into core/urgent, to pick up dependent commits	2017-11-04 08:53:04 +01:00
workqueue.c	Fixes for 4.16. I contains fixes for deadlock on runtime suspend on few	2018-02-22 08:39:26 +10:00
workqueue_internal.h	Merge branch 'for-4.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2017-11-06 12:26:49 -08:00