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[Qemu-devel] [PULL 05/15] vvfat: make it thread-safe
From: |
Fam Zheng |
Subject: |
[Qemu-devel] [PULL 05/15] vvfat: make it thread-safe |
Date: |
Mon, 17 Jul 2017 11:48:15 +0800 |
From: Paolo Bonzini <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Reviewed-by: Stefan Hajnoczi <address@hidden>
Reviewed-by: Fam Zheng <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Fam Zheng <address@hidden>
---
block/vvfat.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/block/vvfat.c b/block/vvfat.c
index 4fd28e1..4dae790 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -3078,8 +3078,14 @@ static int coroutine_fn
write_target_commit(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
QEMUIOVector *qiov, int flags)
{
+ int ret;
+
BDRVVVFATState* s = *((BDRVVVFATState**) bs->opaque);
- return try_commit(s);
+ qemu_co_mutex_lock(&s->lock);
+ ret = try_commit(s);
+ qemu_co_mutex_unlock(&s->lock);
+
+ return ret;
}
static void write_target_close(BlockDriverState *bs) {
--
2.9.4
- [Qemu-devel] [PULL 00/15] Block and testing patches, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 01/15] qcow2: call CoQueue APIs under CoMutex, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 02/15] coroutine-lock: add qemu_co_rwlock_downgrade and qemu_co_rwlock_upgrade, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 03/15] vdi: make it thread-safe, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 04/15] vpc: make it thread-safe, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 05/15] vvfat: make it thread-safe,
Fam Zheng <=
- [Qemu-devel] [PULL 06/15] qed: move tail of qed_aio_write_main to qed_aio_write_{cow, alloc}, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 08/15] qed: introduce bdrv_qed_init_state, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 07/15] block: invoke .bdrv_drain callback in coroutine context and from AioContext, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 09/15] qed: protect table cache with CoMutex, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 12/15] docker: Don't enable networking as a side-effect of DEBUG=1, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 13/15] docker.py: Drop infile parameter, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 11/15] ssh: support I/O from any AioContext, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 10/15] sheepdog: add queue_lock, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 14/15] docker.py: Improve subprocess exit code handling, Fam Zheng, 2017/07/16
- [Qemu-devel] [PULL 15/15] travis: add no-TCG build, Fam Zheng, 2017/07/16