Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

This includes the atomic_ -> qatomic_ rename that touches many files and is
prone to conflicts.

# gpg: Signature made Wed 23 Sep 2020 17:08:43 BST
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  qemu/atomic.h: rename atomic_ to qatomic_
  tests: add test-fdmon-epoll
  fdmon-poll: reset npfd when upgrading to fdmon-epoll
  gitmodules: add qemu.org vbootrom submodule
  gitmodules: switch to qemu.org meson mirror
  gitmodules: switch to qemu.org qboot mirror
  docs/system: clarify deprecation schedule
  virtio-crypto: don't modify elem->in/out_sg
  virtio-blk: undo destructive iov_discard_*() operations
  util/iov: add iov_discard_undo()
  virtio: add vhost-user-fs-ccw device
  libvhost-user: handle endianness as mandated by the spec
  MAINTAINERS: add Stefan Hajnoczi as block/nvme.c maintainer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 6 insertions, 6 deletions

diff --git a/util/fdmon-io_uring.c b/util/fdmon-io_uring.c
index 1d14177df0..1461dfa407 100644
--- a/util/fdmon-io_uring.c
+++ b/util/fdmon-io_uring.c
@@ -103,7 +103,7 @@ static void enqueue(AioHandlerSList *head, AioHandler *node, unsigned flags)
 {
     unsigned old_flags;
 
-    old_flags = atomic_fetch_or(&node->flags, FDMON_IO_URING_PENDING | flags);
+    old_flags = qatomic_fetch_or(&node->flags, FDMON_IO_URING_PENDING | flags);
     if (!(old_flags & FDMON_IO_URING_PENDING)) {
         QSLIST_INSERT_HEAD_ATOMIC(head, node, node_submitted);
     }
@@ -127,7 +127,7 @@ static AioHandler *dequeue(AioHandlerSList *head, unsigned *flags)
      * telling process_cqe() to delete the AioHandler when its
      * IORING_OP_POLL_ADD completes.
      */
-    *flags = atomic_fetch_and(&node->flags, ~(FDMON_IO_URING_PENDING |
+    *flags = qatomic_fetch_and(&node->flags, ~(FDMON_IO_URING_PENDING |
                                               FDMON_IO_URING_ADD));
     return node;
 }
@@ -233,7 +233,7 @@ static bool process_cqe(AioContext *ctx,
      * with enqueue() here then we can safely clear the FDMON_IO_URING_REMOVE
      * bit before IORING_OP_POLL_REMOVE is submitted.
      */
-    flags = atomic_fetch_and(&node->flags, ~FDMON_IO_URING_REMOVE);
+    flags = qatomic_fetch_and(&node->flags, ~FDMON_IO_URING_REMOVE);
     if (flags & FDMON_IO_URING_REMOVE) {
         QLIST_INSERT_HEAD_RCU(&ctx->deleted_aio_handlers, node, node_deleted);
         return false;
@@ -273,7 +273,7 @@ static int fdmon_io_uring_wait(AioContext *ctx, AioHandlerList *ready_list,
     int ret;
 
     /* Fall back while external clients are disabled */
-    if (atomic_read(&ctx->external_disable_cnt)) {
+    if (qatomic_read(&ctx->external_disable_cnt)) {
         return fdmon_poll_ops.wait(ctx, ready_list, timeout);
     }
 
@@ -312,7 +312,7 @@ static bool fdmon_io_uring_need_wait(AioContext *ctx)
     }
 
     /* Are we falling back to fdmon-poll? */
-    return atomic_read(&ctx->external_disable_cnt);
+    return qatomic_read(&ctx->external_disable_cnt);
 }
 
 static const FDMonOps fdmon_io_uring_ops = {
@@ -344,7 +344,7 @@ void fdmon_io_uring_destroy(AioContext *ctx)
 
         /* Move handlers due to be removed onto the deleted list */
         while ((node = QSLIST_FIRST_RCU(&ctx->submit_list))) {
-            unsigned flags = atomic_fetch_and(&node->flags,
+            unsigned flags = qatomic_fetch_and(&node->flags,
                     ~(FDMON_IO_URING_PENDING |
                       FDMON_IO_URING_ADD |
                       FDMON_IO_URING_REMOVE));