[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[RFC PATCH 2/5] introduce BDRV_POLL_WHILE_UNLOCKED
From: |
Emanuele Giuseppe Esposito |
Subject: |
[RFC PATCH 2/5] introduce BDRV_POLL_WHILE_UNLOCKED |
Date: |
Tue, 1 Mar 2022 09:21:10 -0500 |
Same as BDRV_POLL_WHILE, but uses AIO_WAIT_WHILE_UNLOCKED.
See doc comment for more info.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
---
include/block/block.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/block/block.h b/include/block/block.h
index e1713ee306..5a7a850c16 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -512,6 +512,11 @@ void bdrv_drain_all(void);
AIO_WAIT_WHILE(bdrv_get_aio_context(bs_), \
cond); })
+#define BDRV_POLL_WHILE_UNLOCKED(bs, cond) ({ \
+ BlockDriverState *bs_ = (bs); \
+ AIO_WAIT_WHILE_UNLOCKED(bdrv_get_aio_context(bs_), \
+ cond); })
+
int generated_co_wrapper bdrv_pdiscard(BdrvChild *child, int64_t offset,
int64_t bytes);
int bdrv_co_pdiscard(BdrvChild *child, int64_t offset, int64_t bytes);
--
2.31.1
- [RFC PATCH 0/5] Removal of AioContext lock, bs->parents and ->children: proof of concept, Emanuele Giuseppe Esposito, 2022/03/01
- [RFC PATCH 2/5] introduce BDRV_POLL_WHILE_UNLOCKED,
Emanuele Giuseppe Esposito <=
- [RFC PATCH 4/5] child_job_drained_poll: override polling condition only when in home thread, Emanuele Giuseppe Esposito, 2022/03/01
- [RFC PATCH 1/5] aio-wait.h: introduce AIO_WAIT_WHILE_UNLOCKED, Emanuele Giuseppe Esposito, 2022/03/01
- [RFC PATCH 3/5] block/io.c: introduce bdrv_subtree_drained_{begin/end}_unlocked, Emanuele Giuseppe Esposito, 2022/03/01
- [RFC PATCH 5/5] test-bdrv-drain: ensure draining from main loop stops iothreads, Emanuele Giuseppe Esposito, 2022/03/01
- Re: [RFC PATCH 0/5] Removal of AioContext lock, bs->parents and ->children: proof of concept, Emanuele Giuseppe Esposito, 2022/03/01