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| author | Siddhesh Poyarekar <siddhesh@redhat.com> | 2012-10-16 14:23:01 +0530 |
|---|---|---|
| committer | Siddhesh Poyarekar <siddhesh@redhat.com> | 2012-10-16 14:23:35 +0530 |
| commit | 9485a404440e392dbcfdc157bbdf5c863f9c0fce (patch) | |
| tree | 6e03a935c732c07e5d7ada90bf8dbc49df0dbf74 /nptl | |
| parent | 172a631a1fc8ec8fcef80af1f91438d092957c3e (diff) | |
| download | glibc-9485a404440e392dbcfdc157bbdf5c863f9c0fce.zip glibc-9485a404440e392dbcfdc157bbdf5c863f9c0fce.tar.gz glibc-9485a404440e392dbcfdc157bbdf5c863f9c0fce.tar.bz2 | |
Adjust mutex lock in condvar_cleanup if we got it from requeue_pi
This completes the fix to bz #14652.
Diffstat (limited to 'nptl')
5 files changed, 30 insertions, 4 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 43c5b45..4553250 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,3 +1,16 @@ +2012-10-16 Siddhesh Poyarekar <siddhesh@redhat.com> + + [BZ #14652] + * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S + (__condvar_tw_cleanup): Adjust the mutex data structure if it + was locked by FUTEX_WAIT_REQUEUE_PI. + * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait + (__condvar_w_cleanup): Likewise. + * sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S + (__condvar_cleanup2): Likewise. + * sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S + (__condvar_cleanup1): Likewise. + 2012-10-10 Carlos O'Donell <carlos@systemhalted.org> * sysdeps/pthread/pthread.h [!(defined __GNUC__ && diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S index 884987c..6011f69 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S @@ -662,7 +662,10 @@ __condvar_tw_cleanup: movl (%eax), %ebx andl $TID_MASK, %ebx cmpl %ebx, %gs:TID - je 9f + jne 8f + /* We managed to get the lock. Fix it up before returning. */ + call __pthread_mutex_cond_lock_adjust + jmp 9f 8: call __pthread_mutex_cond_lock diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S index bf1e5fe..b418be3 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S @@ -579,7 +579,10 @@ __condvar_w_cleanup: movl (%eax), %ebx andl $TID_MASK, %ebx cmpl %ebx, %gs:TID - je 9f + jne 8f + /* We managed to get the lock. Fix it up before returning. */ + call __pthread_mutex_cond_lock_adjust + jmp 9f 8: call __pthread_mutex_cond_lock diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S index eb13326..15e451a 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S @@ -784,7 +784,10 @@ __condvar_cleanup2: movl (%rdi), %eax andl $TID_MASK, %eax cmpl %eax, %fs:TID - je 8f + jne 7f + /* We managed to get the lock. Fix it up before returning. */ + callq __pthread_mutex_cond_lock_adjust + jmp 8f 7: callq __pthread_mutex_cond_lock diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S index 6c6dc0e..2c6b515 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S @@ -508,7 +508,11 @@ __condvar_cleanup1: movl (%rdi), %eax andl $TID_MASK, %eax cmpl %eax, %fs:TID - je 8f + jne 7f + /* We managed to get the lock. Fix it up before returning. */ + callq __pthread_mutex_cond_lock_adjust + jmp 8f + 7: callq __pthread_mutex_cond_lock |