Song Liu 792caccc45 bpf: Introduce BPF_F_PRESERVE_ELEMS for perf event array ... Currently, perf event in perf event array is removed from the array when the map fd used to add the event is closed. This behavior makes it difficult to the share perf events with perf event array. Introduce perf event map that keeps the perf event open with a new flag BPF_F_PRESERVE_ELEMS. With this flag set, perf events in the array are not removed when the original map fd is closed. Instead, the perf event will stay in the map until 1) it is explicitly removed from the array; or 2) the array is freed. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200930224927.1936644-2-songliubraving@fb.com		2020-09-30 23:18:12 -07:00
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tc_act	net: Move all TC actions identifiers to one place	2019-02-10 09:28:43 -08:00
bpf.h	bpf: Introduce BPF_F_PRESERVE_ELEMS for perf event array	2020-09-30 23:18:12 -07:00
bpf_common.h	bpf: Sync kernel ABI header with tooling header for bpf_common.h	2018-02-09 00:24:38 +01:00
bpf_perf_event.h	selftests/bpf: sync kernel headers and introduce arch support in Makefile	2017-12-05 15:02:41 +01:00
btf.h	libbpf: Sanitize global functions	2020-01-10 17:20:07 +01:00
const.h	tools headers: Grab copy of linux/const.h, needed by linux/bits.h	2019-08-20 12:08:23 -03:00
erspan.h	tools, include: Grab a copy of linux/erspan.h	2018-04-30 17:56:24 +02:00
ethtool.h	libbpf: add support for using AF_XDP sockets	2019-02-25 23:21:42 +01:00
fadvise.h	tools headers uapi: Grab a copy of fadvise.h	2018-12-18 16:17:40 -03:00
fcntl.h	tools headers API: Update faccessat2 affected files	2020-06-09 12:40:03 -03:00
filter.h	tools: bpf: Use local copy of headers including uapi/linux/filter.h	2020-07-21 10:50:35 +01:00
fs.h	tools headers UAPI: Sync linux/fs.h with the kernel sources	2020-06-17 13:23:02 -03:00
fscrypt.h	tools headers UAPI: Sync linux/fscrypt.h with the kernel sources	2020-06-09 12:40:04 -03:00
hw_breakpoint.h	tools/headers: Synchronize kernel ABI headers	2017-11-04 09:27:46 +01:00
if_link.h	net: bridge: Add port attribute IFLA_BRPORT_MRP_IN_OPEN	2020-07-14 13:46:43 -07:00
if_tun.h	selftests/bpf: fix compilation error for flow_dissector.c	2019-05-29 15:15:07 +02:00
if_xdp.h	xsk: Add new statistics	2020-07-13 15:32:56 -07:00
in.h	tools headers UAPI: update linux/in.h copy	2020-09-14 19:06:41 -03:00
kcmp.h	tools headers: Synchronize kernel ABI headers wrt SPDX tags	2017-11-28 14:29:20 -03:00
kvm.h	tools headers UAPI: Sync kvm.h headers with the kernel sources	2020-09-14 19:02:18 -03:00
lirc.h	media: rc: rcmm decoder and encoder	2019-02-18 15:39:49 -05:00
mman.h	tools headers UAPI: Sync linux/mman.h with the kernel	2020-04-14 09:04:53 -03:00
mount.h	tools include UAPI: Update copy of files related to new fspick, fsmount, fsconfig, fsopen, move_mount and open_tree syscalls	2019-05-28 09:49:03 -03:00
netlink.h	net: netlink: rename NETLINK_DUMP_STRICT_CHK -> NETLINK_GET_STRICT_CHK	2018-12-14 11:44:31 -08:00
openat2.h	tools include UAPI: Sync x86's syscalls_64.tbl, generic unistd.h and fcntl.h to pick up openat2 and pidfd_getfd	2020-02-11 16:41:06 -03:00
perf_event.h	perf tools: Correct SNOOPX field offset	2020-09-01 12:19:16 -03:00
pkt_cls.h	net: sched: remove NET_CLS_IND config option	2019-06-15 14:06:13 -07:00
pkt_sched.h	bpf: pull in pkt_sched.h header for tooling to fix bpftool build	2019-01-18 15:16:36 -08:00
prctl.h	tools headers UAPI: Sync prctl.h with the kernel sources	2020-02-11 16:41:50 -03:00
sched.h	tools headers UAPI: Sync sched.h with the kernel	2020-04-14 09:01:08 -03:00
seg6.h	selftests/bpf: missing headers test_lwt_seg6local	2018-05-28 17:41:00 +02:00
seg6_local.h	selftests/bpf: missing headers test_lwt_seg6local	2018-05-28 17:41:00 +02:00
stat.h	tools headers uapi: Sync linux/stat.h with the kernel sources	2020-06-09 12:40:03 -03:00
tls.h	bpf, tls: add tls header to tools infrastructure	2018-10-16 08:10:01 -07:00
types.h	tools/bpf: Move linux/types.h for selftests and bpftool	2020-03-13 20:56:34 +01:00
usbdevice_fs.h	tools headers uapi: Sync linux/usbdevice_fs.h with the kernel sources	2019-09-30 17:29:02 -03:00
vhost.h	tools include UAPI: Sync linux/vhost.h with the kernel sources	2020-08-12 08:57:07 -03:00