mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-27 16:18:52 +00:00
79 lines
2.6 KiB
Diff
79 lines
2.6 KiB
Diff
|
commit 2770d15e7e880821fc586619c59eb45180628e16
|
|||
|
|
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
|
|||
|
|
Date: Thu Oct 3 08:26:21 2013 +0530
|
|||
|
|
|
|||
|
|
Fix PI mutex check in pthread_cond_broadcast and pthread_cond_signal
|
|||
|
|
|
|||
|
|
Fixes BZ #15996.
|
|||
|
|
|
|||
|
|
The check had a typo - it checked for PTHREAD_MUTEX_ROBUST_NP instead
|
|||
|
|
of PTHREAD_MUTEX_ROBUST_NORMAL_NP. It has now been replaced by the
|
|||
|
|
already existing convenience macro USE_REQUEUE_PI.
|
|||
|
|
|
|||
|
|
diff --git a/NEWS b/NEWS
|
|||
|
|
index f64fb82..fb6069d 100644
|
|||
|
|
--- a/NEWS
|
|||
|
|
+++ b/NEWS
|
|||
|
|
@@ -9,7 +9,7 @@ Version 2.18.1
|
|||
|
|
|
|||
|
|
* The following bugs are resolved with this release:
|
|||
|
|
|
|||
|
|
- 15909.
|
|||
|
|
+ 15909, 15996.
|
|||
|
|
|
|||
|
|
Version 2.18
|
|||
|
|
|
|||
|
|
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
|
|||
|
|
index eae5079..2d78490 100644
|
|||
|
|
--- a/nptl/ChangeLog
|
|||
|
|
+++ b/nptl/ChangeLog
|
|||
|
|
@@ -1,3 +1,12 @@
|
|||
|
|
+2013-10-03 Siddhesh Poyarekar <siddhesh@redhat.com>
|
|||
|
|
+
|
|||
|
|
+ [BZ #15996]
|
|||
|
|
+ * pthread_cond_broadcast.c (__pthread_cond_broadcast)
|
|||
|
|
+ [lll_futex_cmp_requeue_pi && __ASSUME_REQUEUE_PI]: Use
|
|||
|
|
+ USE_REQUEUE_PI.
|
|||
|
|
+ * pthread_cond_signal.c (__pthread_cond_signal)
|
|||
|
|
+ [lll_futex_cmd_requeue_pi && __ASSUME_REQUEUE_PI]: Likewise.
|
|||
|
|
+
|
|||
|
|
2013-07-23 David S. Miller <davem@davemloft.net>
|
|||
|
|
|
|||
|
|
* tst-cancel4.c (WRITE_BUFFER_SIZE): Adjust comment.
|
|||
|
|
diff --git a/nptl/pthread_cond_broadcast.c b/nptl/pthread_cond_broadcast.c
|
|||
|
|
index 0702ec0..7ba9efa 100644
|
|||
|
|
--- a/nptl/pthread_cond_broadcast.c
|
|||
|
|
+++ b/nptl/pthread_cond_broadcast.c
|
|||
|
|
@@ -63,10 +63,7 @@ __pthread_cond_broadcast (cond)
|
|||
|
|
|
|||
|
|
#if (defined lll_futex_cmp_requeue_pi \
|
|||
|
|
&& defined __ASSUME_REQUEUE_PI)
|
|||
|
|
- int pi_flag = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_NP;
|
|||
|
|
- pi_flag &= mut->__data.__kind;
|
|||
|
|
-
|
|||
|
|
- if (pi_flag == PTHREAD_MUTEX_PRIO_INHERIT_NP)
|
|||
|
|
+ if (USE_REQUEUE_PI (mut))
|
|||
|
|
{
|
|||
|
|
if (lll_futex_cmp_requeue_pi (&cond->__data.__futex, 1, INT_MAX,
|
|||
|
|
&mut->__data.__lock, futex_val,
|
|||
|
|
diff --git a/nptl/pthread_cond_signal.c b/nptl/pthread_cond_signal.c
|
|||
|
|
index 102d0b3..ffc35dc 100644
|
|||
|
|
--- a/nptl/pthread_cond_signal.c
|
|||
|
|
+++ b/nptl/pthread_cond_signal.c
|
|||
|
|
@@ -49,14 +49,9 @@ __pthread_cond_signal (cond)
|
|||
|
|
|
|||
|
|
#if (defined lll_futex_cmp_requeue_pi \
|
|||
|
|
&& defined __ASSUME_REQUEUE_PI)
|
|||
|
|
- int pi_flag = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_NP;
|
|||
|
|
pthread_mutex_t *mut = cond->__data.__mutex;
|
|||
|
|
|
|||
|
|
- /* Do not use requeue for pshared condvars. */
|
|||
|
|
- if (mut != (void *) ~0l)
|
|||
|
|
- pi_flag &= mut->__data.__kind;
|
|||
|
|
-
|
|||
|
|
- if (__builtin_expect (pi_flag == PTHREAD_MUTEX_PRIO_INHERIT_NP, 0)
|
|||
|
|
+ if (USE_REQUEUE_PI (mut)
|
|||
|
|
/* This can only really fail with a ENOSYS, since nobody can modify
|
|||
|
|
futex while we have the cond_lock. */
|
|||
|
|
&& lll_futex_cmp_requeue_pi (&cond->__data.__futex, 1, 0,
|