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- C 98.2%
- Assembly 1%
- Makefile 0.3%
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| Filename | Latest commit message | Latest commit date |
|---|---|---|
1fe4293f4b
The function_graph tracer does not show the interrupt return marker for the
leaf entry. On leaf entries, we see an unbalanced interrupt marker (the
interrupt was entered, but nevern left).
Before:
1) | SyS_write() {
1) | __fdget_pos() {
1) 0.061 us | __fget_light();
1) 0.289 us | }
1) | vfs_write() {
1) 0.049 us | rw_verify_area();
1) + 15.424 us | __vfs_write();
1) ==========> |
1) 6.003 us | smp_apic_timer_interrupt();
1) 0.055 us | __fsnotify_parent();
1) 0.073 us | fsnotify();
1) + 23.665 us | }
1) + 24.501 us | }
After:
0) | SyS_write() {
0) | __fdget_pos() {
0) 0.052 us | __fget_light();
0) 0.328 us | }
0) | vfs_write() {
0) 0.057 us | rw_verify_area();
0) | __vfs_write() {
0) ==========> |
0) 8.548 us | smp_apic_timer_interrupt();
0) <========== |
0) + 36.507 us | } /* __vfs_write */
0) 0.049 us | __fsnotify_parent();
0) 0.066 us | fsnotify();
0) + 50.064 us | }
0) + 50.952 us | }
Link: http://lkml.kernel.org/r/1517413729-20411-1-git-send-email-changbin.du@intel.com
Cc: stable@vger.kernel.org
Fixes:
|
||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.