diff options
| author |   Xabier Marquiegui <reibax@gmail.com> | 2023-10-12 00:39:55 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2023-10-15 20:07:52 +0100 |
| commit | 8f5de6fb245326704f37d91780b9a10253a8a100 (patch) | |
| tree | a37b5c6fc49fa23bf73af97bb9146b28d75d78d4 /drivers/ptp/ptp_clock.c | |
| parent | ptp: Replace timestamp event queue with linked list (diff) | |
| download | linux-8f5de6fb245326704f37d91780b9a10253a8a100.tar.xz linux-8f5de6fb245326704f37d91780b9a10253a8a100.zip | |
ptp: support multiple timestamp event readers
Use linked lists to create one event queue per open file. This enables
simultaneous readers for timestamp event queues.
Signed-off-by: Xabier Marquiegui <reibax@gmail.com>
Suggested-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/ptp/ptp_clock.c')
| -rw-r--r-- | drivers/ptp/ptp_clock.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c index 157ef25bc1b1..74f1ce2dbccb 100644 --- a/drivers/ptp/ptp_clock.c +++ b/drivers/ptp/ptp_clock.c @@ -162,6 +162,7 @@ static struct posix_clock_operations ptp_clock_ops = { .clock_settime = ptp_clock_settime, .ioctl = ptp_ioctl, .open = ptp_open, + .release = ptp_release, .poll = ptp_poll, .read = ptp_read, }; @@ -174,7 +175,6 @@ static void ptp_clock_release(struct device *dev) ptp_cleanup_pin_groups(ptp); kfree(ptp->vclock_index); - mutex_destroy(&ptp->tsevq_mux); mutex_destroy(&ptp->pincfg_mux); mutex_destroy(&ptp->n_vclocks_mux); /* Delete first entry */ @@ -242,9 +242,8 @@ struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info, queue = kzalloc(sizeof(*queue), GFP_KERNEL); if (!queue) goto no_memory_queue; - spin_lock_init(&queue->lock); list_add_tail(&queue->qlist, &ptp->tsevqs); - mutex_init(&ptp->tsevq_mux); + spin_lock_init(&queue->lock); mutex_init(&ptp->pincfg_mux); mutex_init(&ptp->n_vclocks_mux); init_waitqueue_head(&ptp->tsev_wq); @@ -345,7 +344,6 @@ no_mem_for_vclocks: if (ptp->kworker) kthread_destroy_worker(ptp->kworker); kworker_err: - mutex_destroy(&ptp->tsevq_mux); mutex_destroy(&ptp->pincfg_mux); mutex_destroy(&ptp->n_vclocks_mux); list_del(&queue->qlist); |