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authorDavid Hildenbrand <david@redhat.com>2021-08-25 12:24:15 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2021-08-27 11:39:36 -0700
commit425bec0032f59eeee12520085cd054fac09cc66e (patch)
tree25477a10d8312d0c89b9ab2779c4821c8c7d56b5 /Documentation/dontdiff
parent5a61b7a29647ed7c939ca76d3bf83c75d10ba16e (diff)
downloadlinux-425bec0032f59eeee12520085cd054fac09cc66e.tar.bz2
virtio-mem: fix sleeping in RCU read side section in virtio_mem_online_page_cb()
virtio_mem_set_fake_offline() might sleep now, and we call it under rcu_read_lock(). To fix it, simply move the rcu_read_unlock() further up, as we're done with the device. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: 6cc26d77613a: "virtio-mem: use page_offline_(start|end) when setting PageOffline() Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Jason Wang <jasowang@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: virtualization@lists.linux-foundation.org Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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