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Groups > linux.kernel > #1446306
| From | Lv Zheng <lv.zheng@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 0/2] ACPI / debugger: Add kernel flushing support |
| Date | 2016-07-19 12:10 +0200 |
| Message-ID | <rWA8p-2Hf-3@gated-at.bofh.it> (permalink) |
| References | <rUF2x-3zx-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
AML debugger is implemented in the kernel as a character device located in the debugfs. Currently, when its batch mode is used, the userspace tool needs to flush the logs/prompts remained in the kernel output buffer, this is implemented in an inefficient way in the userspace by polling the IO and reading everything out. This patch introduces a kernel space flushing support, so that userspace can invoke ioctl() to put the driver into a state waiting for new commands, all kernel space logs/prompts will be automatically discarded by ioctl(). Lv Zheng (2): ACPI / debugger: Add kernel flushing support tools/power/acpi/acpidbg: Use new flushing mechanism drivers/acpi/acpi_dbg.c | 98 ++++++++++++++++++++++++++++-- include/linux/acpi-ioctls.h | 21 +++++++ tools/power/acpi/tools/acpidbg/acpidbg.c | 51 +++------------- 3 files changed, 122 insertions(+), 48 deletions(-) create mode 100644 include/linux/acpi-ioctls.h -- 1.7.10
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[PATCH 0/3] ACPI / debugger: Add kernel flushing support Lv Zheng <lv.zheng@intel.com> - 2016-07-14 05:00 +0200
[PATCH 1/3] debugfs: Add .fsync() callback proxy support Lv Zheng <lv.zheng@intel.com> - 2016-07-14 05:00 +0200
RE: [PATCH 1/3] debugfs: Add .fsync() callback proxy support "Zheng, Lv" <lv.zheng@intel.com> - 2016-07-19 10:20 +0200
[PATCH v2 2/2] tools/power/acpi/acpidbg: Use new flushing mechanism Lv Zheng <lv.zheng@intel.com> - 2016-07-19 12:10 +0200
[PATCH v2 0/2] ACPI / debugger: Add kernel flushing support Lv Zheng <lv.zheng@intel.com> - 2016-07-19 12:10 +0200
[PATCH v2 1/2] ACPI / debugger: Add kernel flushing support Lv Zheng <lv.zheng@intel.com> - 2016-07-19 12:10 +0200
Re: [PATCH v2 1/2] ACPI / debugger: Add kernel flushing support "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-07-21 15:40 +0200
RE: [PATCH v2 1/2] ACPI / debugger: Add kernel flushing support "Zheng, Lv" <lv.zheng@intel.com> - 2016-07-22 02:40 +0200
[PATCH] tools/power/acpi/tools/acpidbg: Add multi-commands support in batch mode Lv Zheng <lv.zheng@intel.com> - 2016-07-20 10:20 +0200
Re: [PATCH] tools/power/acpi/tools/acpidbg: Add multi-commands support in batch mode "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-07-21 15:50 +0200
RE: [PATCH] tools/power/acpi/tools/acpidbg: Add multi-commands support in batch mode "Zheng, Lv" <lv.zheng@intel.com> - 2016-07-22 02:30 +0200
[PATCH v3 2/3] tools/power/acpi/acpidbg: Use new flushing mechanism Lv Zheng <lv.zheng@intel.com> - 2016-07-22 06:20 +0200
[PATCH v3 0/3] ACPI / debugger: Add kernel flushing support Lv Zheng <lv.zheng@intel.com> - 2016-07-22 06:20 +0200
[PATCH v3 1/3] ACPI / debugger: Add kernel flushing support Lv Zheng <lv.zheng@intel.com> - 2016-07-22 06:20 +0200
[PATCH v3 3/3] tools/power/acpi/acpidbg: Add multi-commands support in batch mode Lv Zheng <lv.zheng@intel.com> - 2016-07-22 06:20 +0200
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