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authorThomas Gleixner <tglx@linutronix.de>2011-01-23 15:30:09 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-01-27 12:30:38 +0100
commitd04fa5a3ba06c3b7a1c4a6860d0fa4825507a755 (patch)
treee17ac53c5bb9b60839d4722533fb0b6ba1c87027 /Documentation/spinlocks.txt
parent10389a15e25fd4784d42de7e0e3fc8c242f2011d (diff)
downloadop-kernel-dev-d04fa5a3ba06c3b7a1c4a6860d0fa4825507a755.zip
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locking: Remove deprecated lock initializers
Last users are gone. Remove the left overs. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'Documentation/spinlocks.txt')
-rw-r--r--Documentation/spinlocks.txt24
1 files changed, 1 insertions, 23 deletions
diff --git a/Documentation/spinlocks.txt b/Documentation/spinlocks.txt
index 178c831..2e3c64b 100644
--- a/Documentation/spinlocks.txt
+++ b/Documentation/spinlocks.txt
@@ -86,7 +86,7 @@ to change the variables it has to get an exclusive write lock.
The routines look the same as above:
- rwlock_t xxx_lock = RW_LOCK_UNLOCKED;
+ rwlock_t xxx_lock = __RW_LOCK_UNLOCKED(xxx_lock);
unsigned long flags;
@@ -196,25 +196,3 @@ appropriate:
For static initialization, use DEFINE_SPINLOCK() / DEFINE_RWLOCK() or
__SPIN_LOCK_UNLOCKED() / __RW_LOCK_UNLOCKED() as appropriate.
-
-SPIN_LOCK_UNLOCKED and RW_LOCK_UNLOCKED are deprecated. These interfere
-with lockdep state tracking.
-
-Most of the time, you can simply turn:
- static spinlock_t xxx_lock = SPIN_LOCK_UNLOCKED;
-into:
- static DEFINE_SPINLOCK(xxx_lock);
-
-Static structure member variables go from:
-
- struct foo bar {
- .lock = SPIN_LOCK_UNLOCKED;
- };
-
-to:
-
- struct foo bar {
- .lock = __SPIN_LOCK_UNLOCKED(bar.lock);
- };
-
-Declaration of static rw_locks undergo a similar transformation.
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