Author: hselasky Date: Fri Feb 16 15:41:16 2018 New Revision: 329376 URL: https://svnweb.freebsd.org/changeset/base/329376
Log: Implement tasklet_enable() and tasklet_disable() in the LinuxKPI. MFC after: 1 week Requested by: Johannes Lundberg <johal...@gmail.com> Sponsored by: Mellanox Technologies Modified: head/sys/compat/linuxkpi/common/include/linux/interrupt.h head/sys/compat/linuxkpi/common/src/linux_tasklet.c Modified: head/sys/compat/linuxkpi/common/include/linux/interrupt.h ============================================================================== --- head/sys/compat/linuxkpi/common/include/linux/interrupt.h Fri Feb 16 15:41:03 2018 (r329375) +++ head/sys/compat/linuxkpi/common/include/linux/interrupt.h Fri Feb 16 15:41:16 2018 (r329376) @@ -200,5 +200,7 @@ extern void tasklet_schedule(struct tasklet_struct *); extern void tasklet_kill(struct tasklet_struct *); extern void tasklet_init(struct tasklet_struct *, tasklet_func_t *, unsigned long data); +extern void tasklet_enable(struct tasklet_struct *); +extern void tasklet_disable(struct tasklet_struct *); #endif /* _LINUX_INTERRUPT_H_ */ Modified: head/sys/compat/linuxkpi/common/src/linux_tasklet.c ============================================================================== --- head/sys/compat/linuxkpi/common/src/linux_tasklet.c Fri Feb 16 15:41:03 2018 (r329375) +++ head/sys/compat/linuxkpi/common/src/linux_tasklet.c Fri Feb 16 15:41:16 2018 (r329376) @@ -41,6 +41,7 @@ __FBSDID("$FreeBSD$"); #define TASKLET_ST_BUSY 1 #define TASKLET_ST_EXEC 2 #define TASKLET_ST_LOOP 3 +#define TASKLET_ST_PAUSED 4 #define TASKLET_ST_CMPSET(ts, old, new) \ atomic_cmpset_ptr((volatile uintptr_t *)&(ts)->entry.tqe_prev, old, new) @@ -195,4 +196,22 @@ tasklet_kill(struct tasklet_struct *ts) /* wait until tasklet is no longer busy */ while (TASKLET_ST_GET(ts) != TASKLET_ST_IDLE) pause("W", 1); +} + +void +tasklet_enable(struct tasklet_struct *ts) +{ + (void) TASKLET_ST_CMPSET(ts, TASKLET_ST_PAUSED, TASKLET_ST_IDLE); +} + +void +tasklet_disable(struct tasklet_struct *ts) +{ + while (1) { + if (TASKLET_ST_GET(ts) == TASKLET_ST_PAUSED) + break; + if (TASKLET_ST_CMPSET(ts, TASKLET_ST_IDLE, TASKLET_ST_PAUSED)) + break; + pause("W", 1); + } } _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"