Alexei Starovoitov
19e2dbb7dd
bpf: improve stacksafe state comparison ...
"if (old->allocated_stack > cur->allocated_stack)" check is too conservative.
In some cases explored stack could have allocated more space,
but that stack space was not live.
The test case improves from 19 to 15 processed insns
and improvement on real programs is significant as well:
before after
bpf_lb-DLB_L3.o 1940 1831
bpf_lb-DLB_L4.o 3089 3029
bpf_lb-DUNKNOWN.o 1065 1064
bpf_lxc-DDROP_ALL.o 28052 26309
bpf_lxc-DUNKNOWN.o 35487 33517
bpf_netdev.o 10864 9713
bpf_overlay.o 6643 6184
bpf_lcx_jit.o 38437 37335
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Edward Cree <ecree@solarflare.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-15 01:28:32 +01:00
bpf: improve stacksafe state comparison
2018-12-15 01:28:32 +01:00
for-linus-20181102
2018-11-02 11:25:48 -07:00
kvm_config: add CONFIG_VIRTIO_MENU
2018-10-24 20:55:56 -04:00
kdb: kdb_support: mark expected switch fall-throughs
2018-11-13 20:38:50 +00:00
swiotlb: Skip cache maintenance on map error
2018-11-21 18:47:58 +01:00
This is a single commit that fixes a bug in uprobes SDT code
2018-12-06 10:35:19 -08:00
gcov: remove CONFIG_GCOV_FORMAT_AUTODETECT
2018-06-08 18:56:02 +09:00
irq/matrix: Fix memory overallocation
2018-11-01 10:00:38 +01:00
Merge branch 'for-4.19/upstream' into for-linus
2018-08-20 18:33:50 +02:00
mm: remove include/linux/bootmem.h
2018-10-31 08:54:16 -07:00
memblock: stop using implicit alignment to SMP_CACHE_BYTES
2018-10-31 08:54:16 -07:00
mm: remove include/linux/bootmem.h
2018-10-31 08:54:16 -07:00
Merge branches 'doc.2018.08.30a', 'dynticks.2018.08.30b', 'srcu.2018.08.30b' and 'torture.2018.08.29a' into HEAD
2018-08-30 16:12:53 -07:00
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-12-01 12:35:48 -08:00
posix-cpu-timers: Remove useless call to check_dl_overrun()
2018-11-08 07:43:35 +01:00
This includes two more fixes:
2018-11-30 10:40:11 -08:00
audit: use ktime_get_coarse_real_ts64() for timestamps
2018-07-17 14:45:08 -04:00
fsnotify: add fsnotify_add_inode_mark() wrappers
2018-05-18 14:58:22 +02:00
\n
2018-08-17 09:41:28 -07:00
audit: fix use-after-free in audit_add_watch
2018-07-18 11:43:36 -04:00
audit: rename FILTER_TYPE to FILTER_EXCLUDE
2018-06-19 10:39:54 -04:00
audit/stable-4.18 PR 20180814
2018-08-15 10:46:54 -07:00
kbuild: fix kernel/bounds.c 'W=1' warning
2018-10-31 08:54:14 -07:00
y2038: globally rename compat_time to old_time32
2018-08-27 14:48:48 +02:00
x86/speculation: Rework SMT state change
2018-11-28 11:57:07 +01:00
kernel/crash_core.c: print timestamp using time64_t
2018-08-22 10:52:47 -07:00
delayacct: track delays from thrashing cache pages
2018-10-26 16:26:32 -07:00
proc: introduce proc_create_single{,_data}
2018-05-16 07:23:35 +02:00
proc: introduce proc_create_single{,_data}
2018-05-16 07:23:35 +02:00
signal: Pass pid type into group_send_sig_info
2018-07-21 12:57:35 -05:00
kernel/fail_function.c: remove meaningless null pointer check before debugfs_remove_recursive
2018-10-31 08:54:12 -07:00
New gcc plugin: stackleak
2018-11-01 11:46:27 -07:00
PM / reboot: Eliminate race between reboot and suspend
2018-08-06 12:35:20 +02:00
mm: remove include/linux/bootmem.h
2018-10-31 08:54:16 -07:00
y2038: globally rename compat_time to old_time32
2018-08-27 14:48:48 +02:00
kernel: hung_task.c: disable on suspend
2018-10-25 18:45:08 +02:00
memremap: split devm_memremap_pages() and memremap() infrastructure
2018-05-15 23:08:33 -07:00
Merge branch 'x86/build' into locking/core, to pick up dependent patches and unify jump-label work
2018-10-16 17:30:11 +02:00
kallsyms: reduce size a little on 64-bit
2018-09-10 22:54:33 +09:00
kconfig: include kernel/Kconfig.preempt from init/Kconfig
2018-08-02 08:06:54 +09:00
kernel/kcov.c: mark funcs in __sanitizer_cov_trace_pc() as notrace
2018-11-30 14:56:14 -08:00
kexec: add call to LSM hook in original kexec_load syscall
2018-07-16 12:31:57 -07:00
kexec: Allocate decrypted control pages for kdump if SME is enabled
2018-10-06 12:01:51 +02:00
kernel/kexec_file.c: remove some duplicated includes
2018-11-03 10:09:37 -07:00
kprobes: Don't call BUG_ON() if there is a kprobe in use on free list
2018-09-12 08:01:16 +02:00
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-08-13 11:25:07 -07:00
x86/entry: Add STACKLEAK erasing the kernel stack at the end of syscalls
2018-09-04 10:35:47 -07:00
Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
2018-10-28 11:35:40 -07:00
modsign: log module name in the event of an error
2018-07-02 11:36:17 +02:00
jump_table: Move entries into ro_after_init region
2018-09-27 17:56:49 +02:00
modsign: log module name in the event of an error
2018-07-02 11:36:17 +02:00
kernel/panic.c: filter out a potential trailing newline
2018-10-31 08:54:14 -07:00
mm: remove include/linux/bootmem.h
2018-10-31 08:54:16 -07:00
signal: Use group_send_sig_info to kill all processes in a pid namespace
2018-09-16 16:08:25 +02:00
mm: remove include/linux/bootmem.h
2018-10-31 08:54:16 -07:00
ptrace: Remove unused ptrace_may_access_sched() and MODE_IBRS
2018-11-28 11:57:11 +01:00
kernel/reboot.c: export pm_power_off_prepare
2018-09-11 16:13:24 +01:00
kernel/relay.c: change return type to vm_fault_t
2018-06-15 07:55:24 +09:00
resource/docs: Complete kernel-doc style function documentation
2018-11-07 16:47:47 +01:00
rseq: uapi: Declare rseq_cs field as union, update includes
2018-07-10 22:18:52 +02:00
Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2018-10-24 11:49:35 +01:00
kernel/signal.c: fix a comment error
2018-10-31 08:54:14 -07:00
smp,cpumask: introduce on_each_cpu_cond_mask
2018-10-09 16:51:11 +02:00
smpboot: Remove cpumask from the API
2018-07-03 09:20:44 +02:00
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: Mark stackleak_track_stack() as notrace
2018-12-05 19:31:44 -08:00
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-08-13 11:25:07 -07:00
kernel/sys.c: remove duplicated include
2018-09-20 22:01:11 +02:00
Merge branch 'core-rseq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-06-10 10:17:09 -07:00
kernel/sysctl.c: remove duplicated include
2018-11-03 10:09:37 -07:00
kprobes: Remove jprobe API implementation
2018-06-21 12:33:05 +02:00
rcutorture: Check GP completion at stutter end
2018-08-29 09:20:48 -07:00
tracepoint: Fix tracepoint array element size mismatch
2018-10-17 15:35:29 -04:00
umh: Add command line to user mode helpers
2018-10-22 19:37:36 -07:00
smp,cpumask: introduce on_each_cpu_cond_mask
2018-10-09 16:51:11 +02:00
userns: use irqsave variant of refcount_dec_and_lock()
2018-08-22 10:52:47 -07:00
userns: also map extents in the reverse map to kernel IDs
2018-11-07 23:51:16 -06:00
sys: don't hold uts_sem while accessing userspace memory
2018-08-11 02:05:53 -05:00
watchdog: Mark watchdog touch functions as notrace
2018-08-30 12:56:40 +02:00
watchdog: Mark watchdog touch functions as notrace
2018-08-30 12:56:40 +02:00
watchdog: Mark watchdog touch functions as notrace
2018-08-30 12:56:40 +02:00
workqueue: Set worker->desc to workqueue name by default
2018-05-18 08:47:13 -07:00
19e2dbb7dd