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| author | paolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-04-05 22:46:04 +0000 |
|---|---|---|
| committer | paolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-04-05 22:46:04 +0000 |
| commit | 9743a59d88c2b841ef2e20e38c8adea195a87f48 (patch) | |
| tree | 52a5f77b5fe02d839c26bbfc413c21777be5a91b | |
| parent | 78bc76346c0ad6b043e2c0d9eecb2933e00adc50 (diff) | |
| download | ppe42-gcc-9743a59d88c2b841ef2e20e38c8adea195a87f48.tar.gz ppe42-gcc-9743a59d88c2b841ef2e20e38c8adea195a87f48.zip | |
2004-04-05 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::deallocate):
The critical section is actually very small, only two assignments.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@80439 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | libstdc++-v3/ChangeLog | 5 | ||||
| -rw-r--r-- | libstdc++-v3/include/ext/mt_allocator.h | 12 |
2 files changed, 10 insertions, 7 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index 8ff1d837c58..5843ccfbf1f 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,8 @@ +2004-04-05 Paolo Carlini <pcarlini@suse.de> + + * include/ext/mt_allocator.h (__mt_alloc<>::deallocate): + The critical section is actually very small, only two assignments. + 2004-04-04 Paolo Carlini <pcarlini@suse.de> Petur Runolfsson <peturr02@ru.is> diff --git a/libstdc++-v3/include/ext/mt_allocator.h b/libstdc++-v3/include/ext/mt_allocator.h index 401fc3f0d45..0b17aa2d209 100644 --- a/libstdc++-v3/include/ext/mt_allocator.h +++ b/libstdc++-v3/include/ext/mt_allocator.h @@ -430,20 +430,18 @@ namespace __gnu_cxx * _S_options._M_freelist_headroom) && __remove > static_cast<long>(__bin._M_free[__thread_id])) { - __gthread_mutex_lock(__bin._M_mutex); _Block_record* __tmp = __bin._M_first[__thread_id]; _Block_record* __first = __tmp; __remove /= _S_options._M_freelist_headroom; const long __removed = __remove; - while (__remove > 1) - { - __tmp = __tmp->_M_next; - --__remove; - } + while (__remove-- > 1) + __tmp = __tmp->_M_next; __bin._M_first[__thread_id] = __tmp->_M_next; + __bin._M_free[__thread_id] -= __removed; + + __gthread_mutex_lock(__bin._M_mutex); __tmp->_M_next = __bin._M_first[0]; __bin._M_first[0] = __first; - __bin._M_free[__thread_id] -= __removed; __gthread_mutex_unlock(__bin._M_mutex); } |
