Eric Dumazet 2a8bc5316a bpf: add schedule points in percpu arrays management ... [ upstream commit 32fff239de ] syszbot managed to trigger RCU detected stalls in bpf_array_free_percpu() It takes time to allocate a huge percpu map, but even more time to free it. Since we run in process context, use cond_resched() to yield cpu if needed. Fixes: a10423b87a ("bpf: introduce BPF_MAP_TYPE_PERCPU_ARRAY map") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-03-11 16:21:35 +01:00
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Makefile	bpf: introduce percpu_freelist	2016-03-08 15:28:31 -05:00
arraymap.c	bpf: add schedule points in percpu arrays management	2018-03-11 16:21:35 +01:00
core.c	bpf: fix divides by zero	2018-01-31 12:55:57 +01:00
hashtab.c	bpf: don't trigger OOM killer under pressure with map alloc	2017-07-05 14:40:21 +02:00
helpers.c	bpf: direct packet write and access for helpers for clsact progs	2016-09-20 23:32:11 -04:00
inode.c	fs: Replace CURRENT_TIME with current_time() for inode timestamps	2016-09-27 21:06:21 -04:00
percpu_freelist.c	bpf: fix lockdep splat	2017-12-14 09:28:23 +01:00
percpu_freelist.h	bpf: introduce percpu_freelist	2016-03-08 15:28:31 -05:00
stackmap.c	bpf: fix wrong exposure of map_flags into fdinfo for lpm	2018-03-11 16:21:34 +01:00
syscall.c	bpf: move fixup_bpf_calls() function	2018-01-17 09:38:55 +01:00
verifier.c	bpf: reject stores into ctx via st and xadd	2018-01-31 12:55:57 +01:00