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DOCUMENTATION: Use newer DEFINE_SPINLOCK macro in docs.
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Signed-off-by: Robert P. J. Day <[email protected]>
Signed-off-by: Jesper Juhl <[email protected]>
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rpjday authored and Jesper Juhl committed Apr 21, 2008
1 parent dd89db1 commit c0d1f29
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Showing 3 changed files with 4 additions and 4 deletions.
4 changes: 2 additions & 2 deletions Documentation/DocBook/kernel-locking.tmpl
Original file line number Diff line number Diff line change
Expand Up @@ -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
Expand Down Expand Up @@ -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;
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2 changes: 1 addition & 1 deletion Documentation/block/biodoc.txt
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Expand Up @@ -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().

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2 changes: 1 addition & 1 deletion Documentation/cli-sti-removal.txt
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Expand Up @@ -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;
DEFINE_SPINLOCK(driver_lock);
struct driver_data;

irq_handler (...)
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