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zfs recv hangs if max recordsize is less than received recordsize

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- Some optimizations for bqueue enqueue/dequeue.
- Added a fix to prevent deadlock when both bqueue_enqueue_impl()
and bqueue_dequeue() waits for signal to be triggered.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Ameer Hamza <ahamza@ixsystems.com>
Closes #13855
This commit is contained in:
Ameer Hamza
2022-09-17 01:52:25 +05:00
committed by GitHub
parent 8da218a7a2
commit 577d41d3b2
3 changed files with 23 additions and 20 deletions
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include/sys/bqueue.h
+7 -7
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@@ -30,22 +30,22 @@ typedef struct bqueue {
kmutex_t bq_lock;
kcondvar_t bq_add_cv;
kcondvar_t bq_pop_cv;
uint64_t bq_size;
uint64_t bq_maxsize;
uint64_t bq_fill_fraction;
size_t bq_size;
size_t bq_maxsize;
uint_t bq_fill_fraction;
size_t bq_node_offset;
} bqueue_t;
typedef struct bqueue_node {
list_node_t bqn_node;
uint64_t bqn_size;
size_t bqn_size;
} bqueue_node_t;
int bqueue_init(bqueue_t *, uint64_t, uint64_t, size_t);
int bqueue_init(bqueue_t *, uint_t, size_t, size_t);
void bqueue_destroy(bqueue_t *);
void bqueue_enqueue(bqueue_t *, void *, uint64_t);
void bqueue_enqueue_flush(bqueue_t *, void *, uint64_t);
void bqueue_enqueue(bqueue_t *, void *, size_t);
void bqueue_enqueue_flush(bqueue_t *, void *, size_t);
void *bqueue_dequeue(bqueue_t *);
boolean_t bqueue_empty(bqueue_t *);