This is an automated email from the ASF dual-hosted git repository. xiaoxiang pushed a commit to branch releases/12.8 in repository https://gitbox.apache.org/repos/asf/nuttx.git
commit 366332a94832f6035738cf2192f3bdf568aaac4c Author: hujun5 <[email protected]> AuthorDate: Wed Dec 18 09:54:59 2024 +0800 bt_buf: use small lock in wireless/bluetooth/bt_buf.c reason: We would like to replace the big lock with a small lock. Signed-off-by: hujun5 <[email protected]> --- wireless/bluetooth/bt_buf.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/wireless/bluetooth/bt_buf.c b/wireless/bluetooth/bt_buf.c index 4f370b5d13..b2a6b7f2cf 100644 --- a/wireless/bluetooth/bt_buf.c +++ b/wireless/bluetooth/bt_buf.c @@ -109,6 +109,7 @@ static struct bt_buf_s g_buf_pool[CONFIG_BLUETOOTH_BUFFER_PREALLOC]; static bool g_poolinit = false; +static spinlock_t g_buf_lock = SP_UNLOCKED; /**************************************************************************** * Public Functions @@ -238,7 +239,7 @@ FAR struct bt_buf_s *bt_buf_alloc(enum bt_buf_type_e type, * then try the list of messages reserved for interrupt handlers */ - flags = spin_lock_irqsave(NULL); /* Always necessary in SMP mode */ + flags = spin_lock_irqsave(&g_buf_lock); /* Always necessary in SMP mode */ if (up_interrupt_context()) { #if CONFIG_BLUETOOTH_BUFFER_PREALLOC > CONFIG_BLUETOOTH_BUFFER_IRQRESERVE @@ -249,7 +250,7 @@ FAR struct bt_buf_s *bt_buf_alloc(enum bt_buf_type_e type, buf = g_buf_free; g_buf_free = buf->flink; - spin_unlock_irqrestore(NULL, flags); + spin_unlock_irqrestore(&g_buf_lock, flags); pool = POOL_BUFFER_GENERAL; } else @@ -262,13 +263,13 @@ FAR struct bt_buf_s *bt_buf_alloc(enum bt_buf_type_e type, buf = g_buf_free_irq; g_buf_free_irq = buf->flink; - spin_unlock_irqrestore(NULL, flags); + spin_unlock_irqrestore(&g_buf_lock, flags); pool = POOL_BUFFER_IRQ; } else #endif { - spin_unlock_irqrestore(NULL, flags); + spin_unlock_irqrestore(&g_buf_lock, flags); return NULL; } } @@ -285,7 +286,7 @@ FAR struct bt_buf_s *bt_buf_alloc(enum bt_buf_type_e type, buf = g_buf_free; g_buf_free = buf->flink; - spin_unlock_irqrestore(NULL, flags); + spin_unlock_irqrestore(&g_buf_lock, flags); pool = POOL_BUFFER_GENERAL; } else @@ -295,7 +296,7 @@ FAR struct bt_buf_s *bt_buf_alloc(enum bt_buf_type_e type, * will have to allocate one from the kernel memory pool. */ - spin_unlock_irqrestore(NULL, flags); + spin_unlock_irqrestore(&g_buf_lock, flags); buf = (FAR struct bt_buf_s *) kmm_malloc((sizeof (struct bt_buf_s))); @@ -425,10 +426,10 @@ void bt_buf_release(FAR struct bt_buf_s *buf) * list from interrupt handlers. */ - flags = spin_lock_irqsave(NULL); + flags = spin_lock_irqsave(&g_buf_lock); buf->flink = g_buf_free; g_buf_free = buf; - spin_unlock_irqrestore(NULL, flags); + spin_unlock_irqrestore(&g_buf_lock, flags); } else #endif @@ -444,10 +445,10 @@ void bt_buf_release(FAR struct bt_buf_s *buf) * list from interrupt handlers. */ - flags = spin_lock_irqsave(NULL); + flags = spin_lock_irqsave(&g_buf_lock); buf->flink = g_buf_free_irq; g_buf_free_irq = buf; - spin_unlock_irqrestore(NULL, flags); + spin_unlock_irqrestore(&g_buf_lock, flags); } else #endif
