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Searched refs:read_count (Results 1 – 25 of 32) sorted by relevance

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/Linux-v4.19/kernel/locking/
Dpercpu-rwsem.c13 sem->read_count = alloc_percpu(int); in __percpu_init_rwsem()
14 if (unlikely(!sem->read_count)) in __percpu_init_rwsem()
32 if (!sem->read_count) in percpu_free_rwsem()
36 free_percpu(sem->read_count); in percpu_free_rwsem()
37 sem->read_count = NULL; /* catch use after free bugs */ in percpu_free_rwsem()
86 this_cpu_inc(*sem->read_count); in __percpu_down_read()
102 __this_cpu_dec(*sem->read_count); in __percpu_up_read()
127 if (per_cpu_sum(*sem->read_count) != 0) in readers_active_check()
/Linux-v4.19/drivers/gpu/drm/amd/amdgpu/
Damdgpu_vf_error.c71 …if (adev->virt.vf_errors.write_count - adev->virt.vf_errors.read_count > AMDGPU_VF_ERROR_ENTRY_SIZ… in amdgpu_vf_error_trans_all()
72 adev->virt.vf_errors.read_count = adev->virt.vf_errors.write_count - AMDGPU_VF_ERROR_ENTRY_SIZE; in amdgpu_vf_error_trans_all()
75 while (adev->virt.vf_errors.read_count < adev->virt.vf_errors.write_count) { in amdgpu_vf_error_trans_all()
76 index =adev->virt.vf_errors.read_count % AMDGPU_VF_ERROR_ENTRY_SIZE; in amdgpu_vf_error_trans_all()
83 adev->virt.vf_errors.read_count ++; in amdgpu_vf_error_trans_all()
Damdgpu_virt.h44 int read_count; member
/Linux-v4.19/include/linux/
Dpercpu-rwsem.h14 unsigned int __percpu *read_count; member
24 .read_count = &__percpu_rwsem_rc_##name, \
47 __this_cpu_inc(*sem->read_count); in percpu_down_read_preempt_disable()
71 __this_cpu_inc(*sem->read_count); in percpu_down_read_trylock()
97 __this_cpu_dec(*sem->read_count); in percpu_up_read_preempt_enable()
Diomap.h109 atomic_t read_count; member
/Linux-v4.19/drivers/net/ethernet/sfc/falcon/
Dtx.c77 tx_queue->queue, tx_queue->read_count); in ef4_dequeue_buffer()
137 txq1->old_read_count = READ_ONCE(txq1->read_count); in ef4_tx_maybe_stop_queue()
138 txq2->old_read_count = READ_ONCE(txq2->read_count); in ef4_tx_maybe_stop_queue()
366 read_ptr = tx_queue->read_count & tx_queue->ptr_mask; in ef4_dequeue_buffers()
382 ++tx_queue->read_count; in ef4_dequeue_buffers()
383 read_ptr = tx_queue->read_count & tx_queue->ptr_mask; in ef4_dequeue_buffers()
519 fill_level = max(tx_queue->insert_count - tx_queue->read_count, in ef4_xmit_done()
520 txq2->insert_count - txq2->read_count); in ef4_xmit_done()
526 if ((int)(tx_queue->read_count - tx_queue->old_write_count) >= 0) { in ef4_xmit_done()
528 if (tx_queue->read_count == tx_queue->old_write_count) { in ef4_xmit_done()
[all …]
Dnet_driver.h232 unsigned int read_count ____cacheline_aligned_in_smp;
/Linux-v4.19/drivers/gpu/drm/mediatek/
Dmtk_hdmi_ddc.c121 u32 remain_count, ack_count, ack_final, read_count, temp_count; in mtk_hdmi_ddc_read_msg() local
144 read_count = 8; in mtk_hdmi_ddc_read_msg()
148 read_count = remain_count; in mtk_hdmi_ddc_read_msg()
153 DDCM_PGLEN_OFFSET, read_count - 1); in mtk_hdmi_ddc_read_msg()
163 if (((ack_final == 1) && (temp_count != (read_count - 1))) || in mtk_hdmi_ddc_read_msg()
164 ((ack_final == 0) && (temp_count != read_count))) { in mtk_hdmi_ddc_read_msg()
169 for (i = read_count; i >= 1; i--) { in mtk_hdmi_ddc_read_msg()
186 remain_count -= read_count; in mtk_hdmi_ddc_read_msg()
187 index += read_count; in mtk_hdmi_ddc_read_msg()
/Linux-v4.19/drivers/char/ipmi/
Dipmi_bt_sm.c81 int read_count; member
195 bt->read_count = 5; in force_result()
249 msg_len = bt->read_count - 2; /* account for length & seq */ in bt_get_result()
339 bt->read_count = bt->read_data[0]; in read_all_bytes()
341 if (bt->read_count < 4 || bt->read_count >= IPMI_MAX_MSG_LENGTH) { in read_all_bytes()
344 bt->read_count); in read_all_bytes()
348 for (i = 1; i <= bt->read_count; i++) in read_all_bytes()
350 bt->read_count++; /* Account internally for length byte */ in read_all_bytes()
353 int max = bt->read_count; in read_all_bytes()
361 printk(KERN_CONT "%s\n", bt->read_count == max ? "" : " ..."); in read_all_bytes()
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/Linux-v4.19/drivers/net/ethernet/sfc/
Dtx.c100 tx_queue->queue, tx_queue->read_count); in efx_dequeue_buffer()
154 txq1->old_read_count = READ_ONCE(txq1->read_count); in efx_tx_maybe_stop_queue()
155 txq2->old_read_count = READ_ONCE(txq2->read_count); in efx_tx_maybe_stop_queue()
622 read_ptr = tx_queue->read_count & tx_queue->ptr_mask; in efx_dequeue_buffers()
638 ++tx_queue->read_count; in efx_dequeue_buffers()
639 read_ptr = tx_queue->read_count & tx_queue->ptr_mask; in efx_dequeue_buffers()
781 fill_level = max(tx_queue->insert_count - tx_queue->read_count, in efx_xmit_done()
782 txq2->insert_count - txq2->read_count); in efx_xmit_done()
788 if ((int)(tx_queue->read_count - tx_queue->old_write_count) >= 0) { in efx_xmit_done()
790 if (tx_queue->read_count == tx_queue->old_write_count) { in efx_xmit_done()
[all …]
Dtx_tso.c119 tx_queue->read_count >= in efx_tx_queue_insert()
/Linux-v4.19/drivers/usb/misc/
Drio500.c349 ssize_t read_count; in read_rio() local
368 read_count = 0; in read_rio()
374 return read_count ? read_count : -EINTR; in read_rio()
421 read_count += this_read; in read_rio()
426 return read_count; in read_rio()
Dchaoskey.c408 ssize_t read_count = 0; in chaoskey_read() local
458 read_count += this_time; in chaoskey_read()
464 if (read_count) { in chaoskey_read()
465 usb_dbg(dev->interface, "read %zu bytes", read_count); in chaoskey_read()
466 return read_count; in chaoskey_read()
/Linux-v4.19/drivers/media/pci/saa7134/
Dsaa7134-alsa.c159 if (dev->dmasound.read_count >= dev->dmasound.blksize * (dev->dmasound.blocks-2)) { in saa7134_irq_alsa_done()
161 dev->dmasound.read_count, in saa7134_irq_alsa_done()
174 dev->dmasound.blksize, dev->dmasound.read_count); in saa7134_irq_alsa_done()
178 dev->dmasound.read_count += dev->dmasound.blksize; in saa7134_irq_alsa_done()
182 if (dev->dmasound.read_count >= snd_pcm_lib_period_bytes(dev->dmasound.substream)) { in saa7134_irq_alsa_done()
605 if (dev->dmasound.read_count) { in snd_card_saa7134_capture_pointer()
606 dev->dmasound.read_count -= snd_pcm_lib_period_bytes(substream); in snd_card_saa7134_capture_pointer()
817 dev->dmasound.read_count = 0; in snd_card_saa7134_capture_open()
/Linux-v4.19/drivers/media/usb/em28xx/
Dem28xx-input.c52 unsigned int read_count:7; member
224 poll_result->read_count = (msg[0] & 0x7f); in default_polling_getkey()
267 poll_result->read_count = (msg[0] & 0x7f); in em2874_polling_getkey()
348 if (unlikely(poll_result.read_count != ir->last_readcount)) { in em28xx_ir_handle_key()
350 poll_result.toggle_bit, poll_result.read_count, in em28xx_ir_handle_key()
375 ir->last_readcount = poll_result.read_count; in em28xx_ir_handle_key()
/Linux-v4.19/tools/perf/
Dbuiltin-lock.c110 int read_count; member
437 seq->read_count = 1; in report_lock_acquire_event()
443 seq->read_count++; in report_lock_acquire_event()
621 seq->read_count--; in report_lock_release_event()
622 BUG_ON(seq->read_count < 0); in report_lock_release_event()
623 if (!seq->read_count) { in report_lock_release_event()
/Linux-v4.19/drivers/clocksource/
Dsh_cmt.c90 unsigned long (*read_count)(void __iomem *base, unsigned long offs); member
193 .read_count = sh_cmt_read16,
203 .read_count = sh_cmt_read32,
214 .read_count = sh_cmt_read32,
225 .read_count = sh_cmt_read32,
236 .read_count = sh_cmt_read32,
275 return ch->cmt->info->read_count(ch->ioctrl, CMCNT); in sh_cmt_read_cmcnt()
/Linux-v4.19/drivers/tty/serial/
Dioc3_serial.c1394 int read_count = 0, read_room, flip = 0; in receive_chars() local
1408 read_count = do_read(the_port, ch, MAX_CHARS); in receive_chars()
1409 if (read_count > 0) { in receive_chars()
1412 read_count); in receive_chars()
1413 the_port->icount.rx += read_count; in receive_chars()
1420 return read_count; in receive_chars()
Dioc4_serial.c2347 int read_count, request_count = IOC4_MAX_CHARS; in receive_chars() local
2362 read_count = do_read(the_port, ch, request_count); in receive_chars()
2363 if (read_count > 0) { in receive_chars()
2364 tty_insert_flip_string(&state->port, ch, read_count); in receive_chars()
2365 icount->rx += read_count; in receive_chars()
/Linux-v4.19/drivers/misc/mic/scif/
Dscif_api.c1012 int curr_recv_len = 0, remaining_len = len, read_count; in _scif_recv() local
1021 read_count = scif_rb_count(&qp->inbound_q, remaining_len); in _scif_recv()
1022 if (read_count) { in _scif_recv()
1028 curr_recv_len = min(remaining_len, read_count); in _scif_recv()
/Linux-v4.19/drivers/media/common/siano/
Dsmscoreapi.h1064 u32 read_count; /* number of bytes to read */ member
1070 u32 read_count; /* number of bytes read */ member
/Linux-v4.19/drivers/net/ethernet/qlogic/qed/
Dqed_dcbx.c404 int read_count = 0; in qed_dcbx_copy_mib() local
422 read_count++; in qed_dcbx_copy_mib()
427 type, read_count, prefix_seq_num, suffix_seq_num); in qed_dcbx_copy_mib()
429 (read_count < QED_DCBX_MAX_MIB_READ_TRY)); in qed_dcbx_copy_mib()
431 if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) { in qed_dcbx_copy_mib()
434 type, read_count, prefix_seq_num, suffix_seq_num); in qed_dcbx_copy_mib()
/Linux-v4.19/drivers/scsi/
Dosst.h585 int read_count; member
/Linux-v4.19/fs/
Diomap.c117 atomic_set(&iop->read_count, 0); in iomap_page_create()
132 WARN_ON_ONCE(atomic_read(&iop->read_count)); in iomap_page_release()
220 if (!iop || atomic_dec_and_test(&iop->read_count)) in iomap_read_finish()
327 atomic_inc(&iop->read_count); in iomap_readpage_actor()
/Linux-v4.19/drivers/char/pcmcia/
Dsynclink_cs.c833 unsigned char fifo_count, read_count, i; in rx_ready_hdlc() local
861 read_count = 1; in rx_ready_hdlc()
864 read_count = 2; in rx_ready_hdlc()
867 fifo_count -= read_count; in rx_ready_hdlc()
869 buf->status = data[--read_count]; in rx_ready_hdlc()
871 for (i = 0; i < read_count; i++) { in rx_ready_hdlc()

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