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    net/core: apply pm_runtime_set_memalloc_noio on network devices · 9802c8e2
    Ming Lei 提交于
    Deadlock might be caused by allocating memory with GFP_KERNEL in
    runtime_resume and runtime_suspend callback of network devices in iSCSI
    situation, so mark network devices and its ancestor as 'memalloc_noio'
    with the introduced pm_runtime_set_memalloc_noio().
    Signed-off-by: NMing Lei <ming.lei@canonical.com>
    Cc: "David S. Miller" <davem@davemloft.net>
    Cc: Eric Dumazet <eric.dumazet@gmail.com>
    Cc: David Decotigny <david.decotigny@google.com>
    Cc: Tom Herbert <therbert@google.com>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: Jens Axboe <axboe@kernel.dk>
    Cc: Minchan Kim <minchan@kernel.org>
    Cc: Alan Stern <stern@rowland.harvard.edu>
    Cc: Oliver Neukum <oneukum@suse.de>
    Cc: Jiri Kosina <jiri.kosina@suse.com>
    Cc: Mel Gorman <mel@csn.ul.ie>
    Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
    Cc: Michal Hocko <mhocko@suse.cz>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
    Cc: Greg KH <greg@kroah.com>
    Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
    9802c8e2
net-sysfs.c 31.2 KB