Commit c0d1f295 authored by Robert P. J. Day's avatar Robert P. J. Day Committed by Jesper Juhl


Signed-off-by: Robert P. J. Day's avatarRobert P. J. Day <>
Signed-off-by: default avatarJesper Juhl <>
parent dd89db1d
......@@ -854,7 +854,7 @@ The change is shown below, in standard patch format: the
-static DEFINE_MUTEX(cache_lock);
+static spinlock_t cache_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(cache_lock);
static LIST_HEAD(cache);
static unsigned int cache_num = 0;
#define MAX_CACHE_SIZE 10
......@@ -1238,7 +1238,7 @@ Here is the "lock-per-object" implementation:
- int popularity;
static spinlock_t cache_lock = SPIN_LOCK_UNLOCKED;
static DEFINE_SPINLOCK(cache_lock);
@@ -77,6 +84,7 @@
obj-&gt;id = id;
obj-&gt;popularity = 0;
......@@ -1097,7 +1097,7 @@ lock themselves, if required. Drivers that explicitly used the
io_request_lock for serialization need to be modified accordingly.
Usually it's as easy as adding a global lock:
static spinlock_t my_driver_lock = SPIN_LOCK_UNLOCKED;
static DEFINE_SPINLOCK(my_driver_lock);
and passing the address to that lock to blk_init_queue().
......@@ -43,7 +43,7 @@ would execute while the cli()-ed section is executing.
but from now on a more direct method of locking has to be used:
spinlock_t driver_lock = SPIN_LOCK_UNLOCKED;
struct driver_data;
irq_handler (...)
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