Hello Kirill, Hello Pavel, Kirill Korotaev wrote: > Oleg Nesterov noticed to me that the construction like > (used in beancounter patches and free_uid()): > > local_irq_save(flags); > if (atomic_dec_and_lock(&refcnt, &lock)) > ... > > is not that good for preemtible kernels, since with preemption > spin_lock() can schedule() to reduce latency. However, it won't schedule > if interrupts are disabled. > > So this patch introduces atomic_dec_and_lock_irqsave() as a logical > counterpart to atomic_dec_and_lock().
You should probably send that one independently from the BC patchset. C. ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ ckrm-tech mailing list https://lists.sourceforge.net/lists/listinfo/ckrm-tech
