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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

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Three cases of simple overlapping changes.

Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
David S. Miller 2017-09-01 17:42:05 -07:00
commit 6026e043d0
359 changed files with 2437 additions and 1658 deletions
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39
kernel/events/core.c
View file

@ -10034,28 +10034,27 @@ SYSCALL_DEFINE5(perf_event_open,
goto err_context;
/*
* Do not allow to attach to a group in a different
* task or CPU context:
* Make sure we're both events for the same CPU;
* grouping events for different CPUs is broken; since
* you can never concurrently schedule them anyhow.
*/
if (move_group) {
/*
* Make sure we're both on the same task, or both
* per-cpu events.
*/
if (group_leader->ctx->task != ctx->task)
goto err_context;
if (group_leader->cpu != event->cpu)
goto err_context;
/*
* Make sure we're both events for the same CPU;
* grouping events for different CPUs is broken; since
* you can never concurrently schedule them anyhow.
*/
if (group_leader->cpu != event->cpu)
goto err_context;
} else {
if (group_leader->ctx != ctx)
goto err_context;
}
/*
* Make sure we're both on the same task, or both
* per-CPU events.
*/
if (group_leader->ctx->task != ctx->task)
goto err_context;
/*
* Do not allow to attach to a group in a different task
* or CPU context. If we're moving SW events, we'll fix
* this up later, so allow that.
*/
if (!move_group && group_leader->ctx != ctx)
goto err_context;
/*
* Only a group leader can be exclusive or pinned

2
kernel/events/uprobes.c
View file

@ -1262,8 +1262,6 @@ void uprobe_end_dup_mmap(void)
void uprobe_dup_mmap(struct mm_struct *oldmm, struct mm_struct *newmm)
{
newmm->uprobes_state.xol_area = NULL;
if (test_bit(MMF_HAS_UPROBES, &oldmm->flags)) {
set_bit(MMF_HAS_UPROBES, &newmm->flags);
/* unconditionally, dup_mmap() skips VM_DONTCOPY vmas */