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Bluetooth: Convert RFCOMM spinlocks into mutexes

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Enabling CONFIG_DEBUG_ATOMIC_SLEEP has shown that some rfcomm functions
acquiring spinlocks call sleeping locks further in the chain.  Converting
the offending spinlocks into mutexes makes sleeping safe.

Signed-off-by: Libor Pechacek <lpechacek@suse.cz>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Libor Pechacek
2014-04-29 20:38:34 +02:00
committed by Marcel Holtmann
parent 22e7078641
commit 86aae6c7b5
3 changed files with 14 additions and 14 deletions
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6
include/net/bluetooth/rfcomm.h
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@@ -173,7 +173,7 @@ struct rfcomm_dlc {
struct sk_buff_head tx_queue;
struct timer_list timer;
spinlock_t lock;
struct mutex lock;
unsigned long state;
unsigned long flags;
atomic_t refcnt;
@@ -244,8 +244,8 @@ int rfcomm_dlc_get_modem_status(struct rfcomm_dlc *d, u8 *v24_sig);
void rfcomm_dlc_accept(struct rfcomm_dlc *d);
struct rfcomm_dlc *rfcomm_dlc_exists(bdaddr_t *src, bdaddr_t *dst, u8 channel);
#define rfcomm_dlc_lock(d) spin_lock(&d->lock)
#define rfcomm_dlc_unlock(d) spin_unlock(&d->lock)
#define rfcomm_dlc_lock(d) mutex_lock(&d->lock)
#define rfcomm_dlc_unlock(d) mutex_unlock(&d->lock)
static inline void rfcomm_dlc_hold(struct rfcomm_dlc *d)
{