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authorPeter Lieven <pl@kamp.de>2019-09-10 17:41:09 +0200
committerKevin Wolf <kwolf@redhat.com>2019-09-13 12:18:14 +0200
commit601dc6559725f7a614b6f893611e17ff0908e914 (patch)
tree2e9b129e2b92bd75e845811145d15a22b5e6acd3
parentd885ac33cfc30a14e0f68c227865910257fd2c44 (diff)
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block/nfs: tear down aio before nfs_close
nfs_close is a sync call from libnfs and has its own event handler polling on the nfs FD. Avoid that both QEMU and libnfs are intefering here. CC: qemu-stable@nongnu.org Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-rw-r--r--block/nfs.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/block/nfs.c b/block/nfs.c
index 0ec5095..2c98508 100644
--- a/block/nfs.c
+++ b/block/nfs.c
@@ -390,12 +390,14 @@ static void nfs_attach_aio_context(BlockDriverState *bs,
static void nfs_client_close(NFSClient *client)
{
if (client->context) {
+ qemu_mutex_lock(&client->mutex);
+ aio_set_fd_handler(client->aio_context, nfs_get_fd(client->context),
+ false, NULL, NULL, NULL, NULL);
+ qemu_mutex_unlock(&client->mutex);
if (client->fh) {
nfs_close(client->context, client->fh);
client->fh = NULL;
}
- aio_set_fd_handler(client->aio_context, nfs_get_fd(client->context),
- false, NULL, NULL, NULL, NULL);
nfs_destroy_context(client->context);
client->context = NULL;
}