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| author | Andy Lutomirski <luto@kernel.org> | 2016-09-15 22:45:43 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-09-16 09:18:53 +0200 |
| commit | c6c314a613cd7d03fb97713e0d642b493de42e69 (patch) | |
| tree | 4091773558e10d6607f63c8cf33b3dc5253d836c /kernel/kthread.c | |
| parent | ff0071c03684485495e06f3936399eb9c93141a6 (diff) | |
| download | linux-stable-c6c314a613cd7d03fb97713e0d642b493de42e69.tar.gz linux-stable-c6c314a613cd7d03fb97713e0d642b493de42e69.tar.bz2 linux-stable-c6c314a613cd7d03fb97713e0d642b493de42e69.zip | |
sched/core: Add try_get_task_stack() and put_task_stack()
There are a few places in the kernel that access stack memory
belonging to a different task. Before we can start freeing task
stacks before the task_struct is freed, we need a way for those code
paths to pin the stack.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jann Horn <jann@thejh.net>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/17a434f50ad3d77000104f21666575e10a9c1fbd.1474003868.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/kthread.c')
0 files changed, 0 insertions, 0 deletions