[XFS] Unwrap mru_lock.

Un-obfuscate mru_lock, remove mutex_lock->spin_lock macros, call spin_lock
directly, remove extraneous cookie holdover from old xfs code.

SGI-PV: 970382
SGI-Modid: xfs-linux-melb:xfs-kern:29745a

Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Donald Douwsma <donaldd@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

diff --git a/fs/xfs/xfs_mru_cache.c b/fs/xfs/xfs_mru_cache.c
index e0b358c..dc64630 100644 (file)
--- a/fs/xfs/xfs_mru_cache.c
+++ b/fs/xfs/xfs_mru_cache.c
@@ -245,7 +245,7 @@ _xfs_mru_cache_clear_reap_list(
                 */
                list_move(&elem->list_node, &tmp);
        }
-       mutex_spinunlock(&mru->lock, 0);
+       spin_unlock(&mru->lock);
 
        list_for_each_entry_safe(elem, next, &tmp, list_node) {
 
@@ -259,7 +259,7 @@ _xfs_mru_cache_clear_reap_list(
                kmem_zone_free(xfs_mru_elem_zone, elem);
        }
 
-       mutex_spinlock(&mru->lock);
+       spin_lock(&mru->lock);
 }
 
 /*
@@ -280,7 +280,7 @@ _xfs_mru_cache_reap(
        if (!mru || !mru->lists)
                return;
 
-       mutex_spinlock(&mru->lock);
+       spin_lock(&mru->lock);
        next = _xfs_mru_cache_migrate(mru, jiffies);
        _xfs_mru_cache_clear_reap_list(mru);
 
@@ -294,7 +294,7 @@ _xfs_mru_cache_reap(
                queue_delayed_work(xfs_mru_reap_wq, &mru->work, next);
        }
 
-       mutex_spinunlock(&mru->lock, 0);
+       spin_unlock(&mru->lock);
 }
 
 int
@@ -398,17 +398,17 @@ xfs_mru_cache_flush(
        if (!mru || !mru->lists)
                return;
 
-       mutex_spinlock(&mru->lock);
+       spin_lock(&mru->lock);
        if (mru->queued) {
-               mutex_spinunlock(&mru->lock, 0);
+               spin_unlock(&mru->lock);
                cancel_rearming_delayed_workqueue(xfs_mru_reap_wq, &mru->work);
-               mutex_spinlock(&mru->lock);
+               spin_lock(&mru->lock);
        }
 
        _xfs_mru_cache_migrate(mru, jiffies + mru->grp_count * mru->grp_time);
        _xfs_mru_cache_clear_reap_list(mru);
 
-       mutex_spinunlock(&mru->lock, 0);
+       spin_unlock(&mru->lock);
 }
 
 void
@@ -454,13 +454,13 @@ xfs_mru_cache_insert(
        elem->key = key;
        elem->value = value;
 
-       mutex_spinlock(&mru->lock);
+       spin_lock(&mru->lock);
 
        radix_tree_insert(&mru->store, key, elem);
        radix_tree_preload_end();
        _xfs_mru_cache_list_insert(mru, elem);
 
-       mutex_spinunlock(&mru->lock, 0);
+       spin_unlock(&mru->lock);
 
        return 0;
 }
@@ -483,14 +483,14 @@ xfs_mru_cache_remove(
        if (!mru || !mru->lists)
                return NULL;
 
-       mutex_spinlock(&mru->lock);
+       spin_lock(&mru->lock);
        elem = radix_tree_delete(&mru->store, key);
        if (elem) {
                value = elem->value;
                list_del(&elem->list_node);
        }
 
-       mutex_spinunlock(&mru->lock, 0);
+       spin_unlock(&mru->lock);
 
        if (elem)
                kmem_zone_free(xfs_mru_elem_zone, elem);
@@ -540,14 +540,14 @@ xfs_mru_cache_lookup(
        if (!mru || !mru->lists)
                return NULL;
 
-       mutex_spinlock(&mru->lock);
+       spin_lock(&mru->lock);
        elem = radix_tree_lookup(&mru->store, key);
        if (elem) {
                list_del(&elem->list_node);
                _xfs_mru_cache_list_insert(mru, elem);
        }
        else
-               mutex_spinunlock(&mru->lock, 0);
+               spin_unlock(&mru->lock);
 
        return elem ? elem->value : NULL;
 }
@@ -571,10 +571,10 @@ xfs_mru_cache_peek(
        if (!mru || !mru->lists)
                return NULL;
 
-       mutex_spinlock(&mru->lock);
+       spin_lock(&mru->lock);
        elem = radix_tree_lookup(&mru->store, key);
        if (!elem)
-               mutex_spinunlock(&mru->lock, 0);
+               spin_unlock(&mru->lock);
 
        return elem ? elem->value : NULL;
 }
@@ -588,5 +588,5 @@ void
 xfs_mru_cache_done(
        xfs_mru_cache_t *mru)
 {
-       mutex_spinunlock(&mru->lock, 0);
+       spin_unlock(&mru->lock);
 }