diff options
Diffstat (limited to 'drivers/ptp')
| -rw-r--r-- | drivers/ptp/ptp_private.h | 2 | ||||
| -rw-r--r-- | drivers/ptp/ptp_vclock.c | 44 |
2 files changed, 23 insertions, 23 deletions
diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h index 77918a2c6701..75f58fc468a7 100644 --- a/drivers/ptp/ptp_private.h +++ b/drivers/ptp/ptp_private.h @@ -66,7 +66,7 @@ struct ptp_vclock { struct hlist_node vclock_hash_node; struct cyclecounter cc; struct timecounter tc; - spinlock_t lock; /* protects tc/cc */ + struct mutex lock; /* protects tc/cc */ }; /* diff --git a/drivers/ptp/ptp_vclock.c b/drivers/ptp/ptp_vclock.c index 1c0ed4805c0a..dcf752c9e045 100644 --- a/drivers/ptp/ptp_vclock.c +++ b/drivers/ptp/ptp_vclock.c @@ -43,16 +43,16 @@ static void ptp_vclock_hash_del(struct ptp_vclock *vclock) static int ptp_vclock_adjfine(struct ptp_clock_info *ptp, long scaled_ppm) { struct ptp_vclock *vclock = info_to_vclock(ptp); - unsigned long flags; s64 adj; adj = (s64)scaled_ppm << PTP_VCLOCK_FADJ_SHIFT; adj = div_s64(adj, PTP_VCLOCK_FADJ_DENOMINATOR); - spin_lock_irqsave(&vclock->lock, flags); + if (mutex_lock_interruptible(&vclock->lock)) + return -EINTR; timecounter_read(&vclock->tc); vclock->cc.mult = PTP_VCLOCK_CC_MULT + adj; - spin_unlock_irqrestore(&vclock->lock, flags); + mutex_unlock(&vclock->lock); return 0; } @@ -60,11 +60,11 @@ static int ptp_vclock_adjfine(struct ptp_clock_info *ptp, long scaled_ppm) static int ptp_vclock_adjtime(struct ptp_clock_info *ptp, s64 delta) { struct ptp_vclock *vclock = info_to_vclock(ptp); - unsigned long flags; - spin_lock_irqsave(&vclock->lock, flags); + if (mutex_lock_interruptible(&vclock->lock)) + return -EINTR; timecounter_adjtime(&vclock->tc, delta); - spin_unlock_irqrestore(&vclock->lock, flags); + mutex_unlock(&vclock->lock); return 0; } @@ -73,12 +73,12 @@ static int ptp_vclock_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts) { struct ptp_vclock *vclock = info_to_vclock(ptp); - unsigned long flags; u64 ns; - spin_lock_irqsave(&vclock->lock, flags); + if (mutex_lock_interruptible(&vclock->lock)) + return -EINTR; ns = timecounter_read(&vclock->tc); - spin_unlock_irqrestore(&vclock->lock, flags); + mutex_unlock(&vclock->lock); *ts = ns_to_timespec64(ns); return 0; @@ -91,7 +91,6 @@ static int ptp_vclock_gettimex(struct ptp_clock_info *ptp, struct ptp_vclock *vclock = info_to_vclock(ptp); struct ptp_clock *pptp = vclock->pclock; struct timespec64 pts; - unsigned long flags; int err; u64 ns; @@ -99,9 +98,10 @@ static int ptp_vclock_gettimex(struct ptp_clock_info *ptp, if (err) return err; - spin_lock_irqsave(&vclock->lock, flags); + if (mutex_lock_interruptible(&vclock->lock)) + return -EINTR; ns = timecounter_cyc2time(&vclock->tc, timespec64_to_ns(&pts)); - spin_unlock_irqrestore(&vclock->lock, flags); + mutex_unlock(&vclock->lock); *ts = ns_to_timespec64(ns); @@ -113,11 +113,11 @@ static int ptp_vclock_settime(struct ptp_clock_info *ptp, { struct ptp_vclock *vclock = info_to_vclock(ptp); u64 ns = timespec64_to_ns(ts); - unsigned long flags; - spin_lock_irqsave(&vclock->lock, flags); + if (mutex_lock_interruptible(&vclock->lock)) + return -EINTR; timecounter_init(&vclock->tc, &vclock->cc, ns); - spin_unlock_irqrestore(&vclock->lock, flags); + mutex_unlock(&vclock->lock); return 0; } @@ -127,7 +127,6 @@ static int ptp_vclock_getcrosststamp(struct ptp_clock_info *ptp, { struct ptp_vclock *vclock = info_to_vclock(ptp); struct ptp_clock *pptp = vclock->pclock; - unsigned long flags; int err; u64 ns; @@ -135,9 +134,10 @@ static int ptp_vclock_getcrosststamp(struct ptp_clock_info *ptp, if (err) return err; - spin_lock_irqsave(&vclock->lock, flags); + if (mutex_lock_interruptible(&vclock->lock)) + return -EINTR; ns = timecounter_cyc2time(&vclock->tc, ktime_to_ns(xtstamp->device)); - spin_unlock_irqrestore(&vclock->lock, flags); + mutex_unlock(&vclock->lock); xtstamp->device = ns_to_ktime(ns); @@ -205,7 +205,7 @@ struct ptp_vclock *ptp_vclock_register(struct ptp_clock *pclock) INIT_HLIST_NODE(&vclock->vclock_hash_node); - spin_lock_init(&vclock->lock); + mutex_init(&vclock->lock); vclock->clock = ptp_clock_register(&vclock->info, &pclock->dev); if (IS_ERR_OR_NULL(vclock->clock)) { @@ -269,7 +269,6 @@ ktime_t ptp_convert_timestamp(const ktime_t *hwtstamp, int vclock_index) { unsigned int hash = vclock_index % HASH_SIZE(vclock_hash); struct ptp_vclock *vclock; - unsigned long flags; u64 ns; u64 vclock_ns = 0; @@ -281,9 +280,10 @@ ktime_t ptp_convert_timestamp(const ktime_t *hwtstamp, int vclock_index) if (vclock->clock->index != vclock_index) continue; - spin_lock_irqsave(&vclock->lock, flags); + if (mutex_lock_interruptible(&vclock->lock)) + break; vclock_ns = timecounter_cyc2time(&vclock->tc, ns); - spin_unlock_irqrestore(&vclock->lock, flags); + mutex_unlock(&vclock->lock); break; } |