diff options
| author | Justus Winter <4winter@informatik.uni-hamburg.de> | 2015-07-25 01:47:54 +0200 |
|---|---|---|
| committer | Justus Winter <4winter@informatik.uni-hamburg.de> | 2015-07-26 12:14:18 +0200 |
| commit | 3f6377e778e91b59d6fe1eb6d9f8381da04b24b4 (patch) | |
| tree | a52047bfd1d39e57ffd7aa371a1f36e5cc1cd145 /device/dev_hdr.h | |
| parent | e8e4cddec2daa1b3890477b9ccf817db0023c9e9 (diff) | |
device: use general lock for `mach_device'
* device/dev_hdr.h (struct mach_device): Turn lock into a general lock.
(device_lock_init): New macro.
(device_lock, device_unlock): Adapt accordingly.
* device/dev_lookup.c (device_lookup): Use `device_lock_init'.
* device/ds_routines.c (device_open): Adapt accordingly.
Diffstat (limited to 'device/dev_hdr.h')
| -rw-r--r-- | device/dev_hdr.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/device/dev_hdr.h b/device/dev_hdr.h index ff7d2ef..5f80d4a 100644 --- a/device/dev_hdr.h +++ b/device/dev_hdr.h @@ -82,7 +82,7 @@ typedef struct device *device_t; struct mach_device { decl_simple_lock_data(,ref_lock)/* lock for reference count */ int ref_count; /* reference count */ - decl_simple_lock_data(, lock) /* lock for rest of state */ + struct lock lock; /* lock for rest of state */ short state; /* state: */ #define DEV_STATE_INIT 0 /* not open */ #define DEV_STATE_OPENING 1 /* being opened */ @@ -127,8 +127,9 @@ boolean_t dev_map(boolean_t (*)(), mach_port_t); /* * To lock and unlock state and open-count */ -#define device_lock(device) simple_lock(&(device)->lock) -#define device_unlock(device) simple_unlock(&(device)->lock) +#define device_lock_init(device) lock_init(&(device)->lock, FALSE) +#define device_lock(device) lock_write(&(device)->lock) +#define device_unlock(device) lock_write_done(&(device)->lock) /* * device name lookup |