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| author | Libor Pechacek <lpechacek@suse.cz> | 2014-04-29 20:38:34 +0200 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2014-05-05 19:25:06 -0700 |
| commit | 86aae6c7b577654b7293374973985a153e0c147e (patch) | |
| tree | 2bc969c42c78d2fa817c0bdb0d0a85dcf692d075 /include/net/bluetooth | |
| parent | 22e70786413ed05950207eda7be420c280b776d7 (diff) | |
| download | lwn-86aae6c7b577654b7293374973985a153e0c147e.tar.gz lwn-86aae6c7b577654b7293374973985a153e0c147e.zip | |
Bluetooth: Convert RFCOMM spinlocks into mutexes
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>
Diffstat (limited to 'include/net/bluetooth')
| -rw-r--r-- | include/net/bluetooth/rfcomm.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h index 2611cc389d7d..578b83127af1 100644 --- a/include/net/bluetooth/rfcomm.h +++ b/include/net/bluetooth/rfcomm.h @@ -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) { |