Commit-ID:  4959f2de11ca532a120a337429e5576fd283700f
Gitweb:     http://git.kernel.org/tip/4959f2de11ca532a120a337429e5576fd283700f
Author:     Thomas Gleixner <[email protected]>
AuthorDate: Sat, 19 Dec 2015 20:07:40 +0000
Committer:  Thomas Gleixner <[email protected]>
CommitDate: Sun, 20 Dec 2015 12:43:25 +0100

futex: Remove pointless put_pi_state calls in requeue()

In the error handling cases we neither have pi_state nor a reference
to it. Remove the pointless code.

Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Darren Hart <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: [email protected]
Cc: Andy Lowe <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
---
 kernel/futex.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/kernel/futex.c b/kernel/futex.c
index 20c4683..dcec018 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1735,9 +1735,9 @@ retry_private:
                case 0:
                        /* We hold a reference on the pi state. */
                        break;
+
+                       /* If the above failed, then pi_state is NULL */
                case -EFAULT:
-                       put_pi_state(pi_state);
-                       pi_state = NULL;
                        double_unlock_hb(hb1, hb2);
                        hb_waiters_dec(hb2);
                        put_futex_key(&key2);
@@ -1753,8 +1753,6 @@ retry_private:
                         *   exit to complete.
                         * - The user space value changed.
                         */
-                       put_pi_state(pi_state);
-                       pi_state = NULL;
                        double_unlock_hb(hb1, hb2);
                        hb_waiters_dec(hb2);
                        put_futex_key(&key2);
--
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