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Re: [Qemu-devel] [PATCH v3 0/5] Automatic RCU read unlock
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH v3 0/5] Automatic RCU read unlock |
Date: |
Wed, 25 Sep 2019 15:21:19 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 |
On 25/09/19 15:13, Dr. David Alan Gilbert wrote:
> * Dr. David Alan Gilbert (git) (address@hidden) wrote:
>> From: "Dr. David Alan Gilbert" <address@hidden>
>>
>> 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.
__attribute__((unused))?
Paolo
> 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 / address@hidden / Manchester, UK
>
- [Qemu-devel] [PATCH v3 2/5] migration: Fix missing rcu_read_unlock, (continued)
- [Qemu-devel] [PATCH v3 2/5] migration: Fix missing rcu_read_unlock, Dr. David Alan Gilbert (git), 2019/09/13
- [Qemu-devel] [PATCH v3 3/5] migration: Use automatic rcu_read unlock in ram.c, Dr. David Alan Gilbert (git), 2019/09/13
- [Qemu-devel] [PATCH v3 4/5] migration: Use automatic rcu_read unlock in rdma.c, Dr. David Alan Gilbert (git), 2019/09/13
- [Qemu-devel] [PATCH v3 5/5] rcu: Use automatic rc_read unlock in core memory/exec code, Dr. David Alan Gilbert (git), 2019/09/13
- Re: [Qemu-devel] [PATCH v3 0/5] Automatic RCU read unlock, Dr. David Alan Gilbert, 2019/09/25
- Re: [Qemu-devel] [PATCH v3 0/5] Automatic RCU read unlock, Dr. David Alan Gilbert, 2019/09/25
- Re: [Qemu-devel] [PATCH v3 0/5] Automatic RCU read unlock,
Paolo Bonzini <=