Re: [RFC PATCH v2 4/6] net/core: apply pm_runtime_set_memalloc_noio on network devices
From: Alan Stern <stern@rowland.harvard.edu>
Date: 2012-10-22 19:18:32
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linux-mm, linux-pm, lkml
On Mon, 22 Oct 2012, Ming Lei wrote:
Deadlock might be caused by allocating memory with GFP_KERNEL in runtime_resume callback of network devices in iSCSI situation, so mark network devices and its ancestor as 'memalloc_noio_resume' with the introduced pm_runtime_set_memalloc_noio().
Is this really needed? Even with iSCSI, doesn't register_disk() have to be called for the underlying block device? And given your 3/6 patch, wouldn't that mark the network device? Alan Stern -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>