On Wed, 27 Jul 2011 08:06:37 +0900
Akinobu Mita <akinobu.mita@xxxxxxxxx> wrote:
> init_fault_attr_dentries() is used to export fault_attr via debugfs. But
> it can only export it in debugfs root directory.
>
> Per Forlin is working on mmc_fail_request which adds support to inject
> data errors after a completed host transfer in MMC subsystem.
>
> The fault_attr for mmc_fail_request should be defined per mmc host and
> export it in debugfs directory per mmc host like
> /sys/kernel/debug/mmc0/mmc_fail_request.
>
> init_fault_attr_dentries() doesn't help for mmc_fail_request. So this
> introduces debugfs_create_fault_attr() which is able to create a directory
> in the arbitrary directory and replace init_fault_attr_dentries().
The name is wrong. "debugfs_create_fault_attr" refers to some function
exported by the debugfs code. But this function is exported by the
fault injection code.
I edited the patch and renamed it to fault_create_debugfs_attr, which
may not make a ton of sense - please let me know if there's something
more appropriate.
I suggest that all symbols exported by this system should start with
"fault_". ("fault_injection_" would be more appropriate, but it's
rather lengthy). Please take a look through the code, see if there's
anything else we should clean up.
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