Re: [Qemu-devel] [PATCH v3 0/5] Automatic RCU read unlock

["Dr. David Alan Gilbert" <dgilbert@redhat.com>]

* Dr. David Alan Gilbert (git) (dgilbert@redhat.com) wrote:
> From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
> 
> This patch uses glib's g_auto mechanism to automatically free
> rcu_read_lock's at the end of the block.  Given that humans
> have a habit of forgetting an error path somewhere it's
> best to leave it to the compiler.

I've had to unqueue this - clang doesn't like the apparently unused
auto variable; we need to find a way to make that happy.

Dave

> v3
>   Add block-head version of macro
>   Rename
>   Add docs
>   Convert more cases using the block-head version
> 
> Dr. David Alan Gilbert (5):
>   rcu: Add automatically released rcu_read_lock variants
>   migration: Fix missing rcu_read_unlock
>   migration: Use automatic rcu_read unlock in ram.c
>   migration: Use automatic rcu_read unlock in rdma.c
>   rcu: Use automatic rc_read unlock in core memory/exec code
> 
>  docs/devel/rcu.txt      |  16 +++
>  exec.c                  | 120 +++++++---------
>  include/exec/ram_addr.h | 138 +++++++++----------
>  include/qemu/rcu.h      |  25 ++++
>  memory.c                |  15 +-
>  migration/ram.c         | 295 +++++++++++++++++++---------------------
>  migration/rdma.c        |  57 ++------
>  7 files changed, 310 insertions(+), 356 deletions(-)
> 
> -- 
> 2.21.0
> 
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK