| commit | 2e4006b34d06681ed95d55510d4450f29a13c417 | [log] [tgz] |
|---|---|---|
| author | Gerald Schaefer <gerald.schaefer@de.ibm.com> | Tue May 06 19:41:36 2014 +0200 |
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | Tue May 20 08:58:52 2014 +0200 |
| tree | 0ff439559cfcfc2bac5eb1b41d6412694fd49a03 | |
| parent | f1a858206804a5a694f30196e50756b86eb7d68c [diff] |
s390/spinlock: fix system hang with spin_retry <= 0 On LPAR, when spin_retry is set to <= 0, arch_spin_lock_wait() and arch_spin_lock_wait_flags() may end up in a while(1) loop w/o doing any compare and swap operation. To fix this, use do/while instead of for loop. Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>