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Subject[PATCH] futex: mark get_robust_list as deprecated
Notify get_robust_list users that the syscall is going away.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
---
kernel/futex.c | 2 ++
kernel/futex_compat.c | 2 ++
2 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/kernel/futex.c b/kernel/futex.c
index 439440d..545d7a3 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -2449,6 +2449,8 @@ SYSCALL_DEFINE3(get_robust_list, int, pid,
if (!futex_cmpxchg_enabled)
return -ENOSYS;

+ WARN_ONCE(1, "deprecated: get_robust_list will be deleted in 2013.\n");
+
rcu_read_lock();

ret = -ESRCH;
diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
index a9642d5..83e368b 100644
--- a/kernel/futex_compat.c
+++ b/kernel/futex_compat.c
@@ -142,6 +142,8 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
if (!futex_cmpxchg_enabled)
return -ENOSYS;

+ WARN_ONCE(1, "deprecated: get_robust_list will be deleted in 2013.\n");
+
rcu_read_lock();

ret = -ESRCH;
--
1.7.0.4
--
Kees Cook
ChromeOS Security


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