Re: simplify procfs code for seq_file instances V2

David Howells <[email protected]> Mon, 30 Apr 2018 16:38:18 +0100

Newsgroups	gmane.comp.file-systems.jfs.general
Organization	Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903
Message-ID	<15622.1525102698__37657.8126255938$1525277316$gmane$org@warthog.procyon.org.uk>

Note that your kernel hits the:

	inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.
	swapper/0/0 [HC1[1]:SC0[0]:HE0:SE1] takes:
		(ptrval) (fs_reclaim){?.+.}, at: fs_reclaim_acquire+0x12/0x35
	{HARDIRQ-ON-W} state was registered at:
	  fs_reclaim_acquire+0x32/0x35
	  kmem_cache_alloc_node_trace+0x49/0x2cf
	  alloc_worker+0x1d/0x49
	  init_rescuer.part.7+0x19/0x8f
	  workqueue_init+0xc0/0x1fe
	  kernel_init_freeable+0xdc/0x433
	  kernel_init+0xa/0xf5
	  ret_from_fork+0x24/0x30

bug, as described here:

	https://groups.google.com/forum/#!msg/syzkaller-bugs/sJC3Y3hOM08/aO3z9JXoAgAJ

David

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