mirror of https://gitee.com/openkylin/linux.git
a695f16729
If user space opens a unit record device node then vmur is leaving the kernel with lock open_mutex still held to prevent other processes from opening the device simultaneously. This causes lockdep to complain about a lock held when returning to user space. Now the mutex is replaced by a wait queue to serialize device open. Signed-off-by: Frank Munzert <munzert@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> |
||
|---|---|---|
| .. | ||
| block | ||
| char | ||
| cio | ||
| crypto | ||
| net | ||
| scsi | ||
| Makefile | ||
| ebcdic.c | ||
| s390_rdev.c | ||
| s390mach.c | ||
| s390mach.h | ||
| sysinfo.c | ||