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74d47d75be
I think we can get rid of the spinlock protecting the kthread from being interrupted by a wakeup in certain parts. Even with the current implementation of the kthread the only lost wakeup scenario could happen if the wakeup occurs between the kfifo_len check and setting the state to TASK_INTERRUPTIBLE. In the changed version we could lose a wakeup if it occurs between processing the fifo content and setting the state to TASK_INTERRUPTIBLE. This scenario is covered by an additional check for available events in the fifo and setting the state to TASK_RUNNING in this case. In addition the changed version flushes the kfifo before ending when the kthread is stopped. With this patch we gain: - Get rid of the spinlock - Simplify code - Don't grep / release the mutex for each individual event but just once for the complete fifo content. This reduces overhead if a driver e.g. triggers processing after writing the content of a hw fifo to the kfifo. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> |
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| .. | ||
| img-ir | ||
| keymaps | ||
| ati_remote.c | ||
| ene_ir.c | ||
| ene_ir.h | ||
| fintek-cir.c | ||
| fintek-cir.h | ||
| gpio-ir-recv.c | ||
| igorplugusb.c | ||
| iguanair.c | ||
| imon.c | ||
| ir-hix5hd2.c | ||
| ir-jvc-decoder.c | ||
| ir-lirc-codec.c | ||
| ir-mce_kbd-decoder.c | ||
| ir-nec-decoder.c | ||
| ir-rc5-decoder.c | ||
| ir-rc6-decoder.c | ||
| ir-rx51.c | ||
| ir-sanyo-decoder.c | ||
| ir-sharp-decoder.c | ||
| ir-sony-decoder.c | ||
| ir-xmp-decoder.c | ||
| ite-cir.c | ||
| ite-cir.h | ||
| Kconfig | ||
| lirc_dev.c | ||
| Makefile | ||
| mceusb.c | ||
| meson-ir.c | ||
| nuvoton-cir.c | ||
| nuvoton-cir.h | ||
| rc-core-priv.h | ||
| rc-ir-raw.c | ||
| rc-loopback.c | ||
| rc-main.c | ||
| redrat3.c | ||
| serial_ir.c | ||
| st_rc.c | ||
| streamzap.c | ||
| sunxi-cir.c | ||
| ttusbir.c | ||
| winbond-cir.c | ||