File block-nfs-tear-down-aio-before-nfs_close.patch of Package qemu

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File block-nfs-tear-down-aio-before-nfs_close.patch of Package qemu (Revision 2b2ec40cac84f0f7228f35537d83fcee)

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From: Peter Lieven <pl@kamp.de>
Date: Tue, 10 Sep 2019 17:41:09 +0200
Subject: block/nfs: tear down aio before nfs_close

Git-commit: 601dc6559725f7a614b6f893611e17ff0908e914

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>
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 block/nfs.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/block/nfs.c b/block/nfs.c
index d93241b3bb84cf0a662f0ddec582..2b7a0782419af82aea80dd76e474 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;
     }

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File block-nfs-tear-down-aio-before-nfs_close.patch of Package qemu (Revision 2b2ec40cac84f0f7228f35537d83fcee)

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