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When tc actions are loaded as a module and no actions have been installed,
flushing them would result in actions removed from the memory, but modules
reference count not being decremented, so that the modules would not be
unloaded.
Following is example with GACT action:
% sudo modprobe act_gact
% lsmod
Module Size Used by
act_gact 16384 0
%
% sudo tc actions ls action gact
%
% sudo tc actions flush action gact
% lsmod
Module Size Used by
act_gact 16384 1
% sudo tc actions flush action gact
% lsmod
Module Size Used by
act_gact 16384 2
% sudo rmmod act_gact
rmmod: ERROR: Module act_gact is in use
....
After the fix:
% lsmod
Module Size Used by
act_gact 16384 0
%
% sudo tc actions add action pass index 1
% sudo tc actions add action pass index 2
% sudo tc actions add action pass index 3
% lsmod
Module Size Used by
act_gact 16384 3
%
% sudo tc actions flush action gact
% lsmod
Module Size Used by
act_gact 16384 0
%
% sudo tc actions flush action gact
% lsmod
Module Size Used by
act_gact 16384 0
% sudo rmmod act_gact
% lsmod
Module Size Used by
%
Fixes:
|
||
|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.