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Commit 2f69a110 authored by Juergen Gross's avatar Juergen Gross Committed by Boris Ostrovsky
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xen/xenbus: fix locking



Commit 060eabe8 ("xenbus/backend: Protect xenbus callback with
lock") introduced a bug by holding a lock while calling a function
which might schedule.

Fix that by using a semaphore instead.

Fixes: 060eabe8 ("xenbus/backend: Protect xenbus callback with lock")
Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20200305100323.16736-1-jgross@suse.com


Reviewed-by: default avatarBoris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: default avatarBoris Ostrovsky <boris.ostrovsky@oracle.com>
parent 8130b9d5
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