Messages in this thread | ![/](/images/icornerl.gif) | | Date | Tue, 11 Jul 2023 14:34:33 +0100 | From | Matthew Wilcox <> | Subject | Re: [PATCH v2] exfat: Add ftrace support for exfat and add some tracepoints |
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On Tue, Jul 11, 2023 at 08:22:08PM +0800, Zehao Zhang wrote: > Add ftrace support for exFAT file system, > and add some tracepoints:
Why? I don't believe these are useful. Because if you actually had use for them, you would have noticed that you're missing 99% of the reads issued to the filesystem from the VFS -- through exfat_readahead(), which you didn't instrument.
So what do you actually want to know, and why can't you get that information already?
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