Re: [PATCH v9 00/10] ref_tracker: add ability to register a debugfs file for a ref_tracker_dir
flat view
From: Jeff Layton <jlayton@kernel.org>
Date: 2025-05-10 11:17:38
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dri-devel, intel-gfx, lkml
On Fri, 2025-05-09 at 16:00 -0700, Jakub Kicinski wrote:
On Fri, 09 May 2025 11:53:36 -0400 Jeff Layton wrote:quoted
This one just fixes a typo in the ref_tracker_dir_init() kerneldoc header. I'm only resending so the CI will pick it up.We got a bunch of: [ 0.457561][ T0] ref_tracker: ref_tracker: unable to create debugfs file for net_refcnt@ffffffff92da4870: -ENOENT [ 0.457561][ T0] ref_tracker: ref_tracker: unable to create debugfs file for net_notrefcnt@ffffffff92da48f8: -ENOENT [ 0.973191][ T1] ref_tracker: ref_tracker: unable to create debugfs file for netdev@ffff888004d0c5a8: -ENOENT [ 1.150784][ T1] ref_tracker: ref_tracker: unable to create debugfs file for netdev@ffff8880053fc5a8: -ENOENT [ 1.660680][ T1] ref_tracker: ref_tracker: unable to create debugfs file for netdev@ffff8880085f95a8: -ENOENT in the CI at boot. Presumably init_net and loopback. https://netdev-3.bots.linux.dev/vmksft-net-drv-dbg/results/113741/vm-start-thr0-0/stdout
Makes sense. I had an earlier version that only attempted to create the debugfs file if the directory was already created, but Andrew had complained about the error checking I was doing on debugfs. That would silence these warnings. I'll see about bringing that back. -- Jeff Layton [off-list ref]