diff options
| author | Andy Lutomirski <luto@kernel.org> | 2016-09-30 20:58:58 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-10-20 10:21:41 +0300 |
| commit | d17af5056cf9e9fc05e68832f7c15687fcc12281 (patch) | |
| tree | 5849ec3001300e88b215f9d4e47e6b2b18e335fa /mm/pagewalk.c | |
| parent | b18cb64ead400c01bf1580eeba330ace51f8087d (diff) | |
| download | linux-d17af5056cf9e9fc05e68832f7c15687fcc12281.tar.xz | |
mm: Change vm_is_stack_for_task() to vm_is_stack_for_current()
Asking for a non-current task's stack can't be done without races
unless the task is frozen in kernel mode. As far as I know,
vm_is_stack_for_task() never had a safe non-current use case.
The __unused annotation is because some KSTK_ESP implementations
ignore their parameter, which IMO is further justification for this
patch.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Jann Horn <jann@thejh.net>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Linux API <linux-api@vger.kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tycho Andersen <tycho.andersen@canonical.com>
Link: http://lkml.kernel.org/r/4c3f68f426e6c061ca98b4fc7ef85ffbb0a25b0c.1475257877.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/pagewalk.c')
0 files changed, 0 insertions, 0 deletions