tree 33f5abf2dbe6ab2397bb613452f42ec9bf60616a
parent 32a8aba37eaae54d3a0a7ae5e93e3e157525660a
author Kevin Wolf <kwolf@redhat.com> 1694425580 +0200
committer Kevin Wolf <kwolf@redhat.com> 1695224761 +0200

block: Mark bdrv_add/del_child() and caller GRAPH_WRLOCK

The functions read the parents list in the generic block layer, so we
need to hold the graph lock already there. The BlockDriver
implementations actually modify the graph, so it has to be a writer
lock.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20230911094620.45040-22-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>