linux_dsm_epyc7002/include/uapi
David Miller 4f8f382e63 perf tools: Don't clone maps from parent when synthesizing forks
When synthesizing FORK events, we are trying to create thread objects
for the already running tasks on the machine.

Normally, for a kernel FORK event, we want to clone the parent's maps
because that is what the kernel just did.

But when synthesizing, this should not be done.  If we do, we end up
with overlapping maps as we process the sythesized MMAP2 events that
get delivered shortly thereafter.

Use the FORK event misc flags in an internal way to signal this
situation, so we can elide the map clone when appropriate.

Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Link: http://lkml.kernel.org/r/20181030.222404.2085088822877051075.davem@davemloft.net
[ Added comment about flag use in machine__process_fork_event(),
  use ternary op in thread__clone_map_groups() as suggested by Jiri ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-10-31 10:18:01 -03:00
..
asm-generic Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-10-25 11:14:36 -07:00
drm drm: add msm compressed format modifiers 2018-07-26 10:39:21 -04:00
linux perf tools: Don't clone maps from parent when synthesizing forks 2018-10-31 10:18:01 -03:00
misc ocxl: Add an IOCTL so userspace knows what OCXL features are available 2018-06-03 20:40:32 +10:00
mtd ubi: expose the volume CRC check skip flag 2018-08-15 00:25:21 +02:00
rdma IB/mlx5: Allow scatter to CQE without global signaled WRs 2018-10-17 11:25:41 -04:00
scsi scsi: ufs: fix integer type usage in uapi header 2018-10-15 22:44:30 -04:00
sound Merge branch 'for-linus' into for-next 2018-10-04 07:53:06 +02:00
video
xen xen/gntdev: Add initial support for dma-buf UAPI 2018-07-26 23:05:14 -04:00