diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/x86/elision-lock.c')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86/elision-lock.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86/elision-lock.c b/nptl/sysdeps/unix/sysv/linux/x86/elision-lock.c index de16f1b02f..9d009839b8 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86/elision-lock.c +++ b/nptl/sysdeps/unix/sysv/linux/x86/elision-lock.c @@ -14,7 +14,7 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ + <http://www.gnu.org/licenses/>. */ #include <pthread.h> #include "pthreadP.h" @@ -58,7 +58,7 @@ __lll_lock_elision (int *futex, short *adapt_count, EXTRAARG int private) if (*futex == 0) return 0; - /* Lock was busy. Fall back to normal locking. + /* Lock was busy. Fall back to normal locking. Could also _xend here but xabort with 0xff code is more visible in the profiler. */ _xabort (_ABORT_LOCK_BUSY); @@ -69,12 +69,12 @@ __lll_lock_elision (int *futex, short *adapt_count, EXTRAARG int private) if ((status & _XABORT_EXPLICIT) && _XABORT_CODE (status) == _ABORT_LOCK_BUSY) { - /* Right now we skip here. Better would be to wait a bit - and retry. This likely needs some spinning. */ + /* Right now we skip here. Better would be to wait a bit + and retry. This likely needs some spinning. */ if (*adapt_count != aconf.skip_lock_busy) *adapt_count = aconf.skip_lock_busy; } - /* Internal abort. There is no chance for retry. + /* Internal abort. There is no chance for retry. Use the normal locking and next time use lock. Be careful to avoid writing to the lock. */ else if (*adapt_count != aconf.skip_lock_internal_abort) |