Commit-ID: be81c6ea23b8b471141734ef4bc005f5127aaf43
Gitweb: http://git.kernel.org/tip/be81c6ea23b8b471141734ef4bc005f5127aaf43
Author: Joerg Roedel <joerg.roedel@xxxxxxx>
AuthorDate: Mon, 8 Jun 2009 15:46:19 +0200
Committer: Joerg Roedel <joerg.roedel@xxxxxxx>
CommitDate: Mon, 8 Jun 2009 15:46:19 +0200
dma-debug: disable/enable irqs only once in device_dma_allocations
There is no need to disable/enable irqs on each loop iteration. Just
disable irqs for the whole time the loop runs.
Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
---
lib/dma-debug.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 24c4a2c..27b369d 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -649,15 +649,19 @@ static int device_dma_allocations(struct device *dev)
unsigned long flags;
int count = 0, i;
+ local_irq_save(flags);
+
for (i = 0; i < HASH_SIZE; ++i) {
- spin_lock_irqsave(&dma_entry_hash[i].lock, flags);
+ spin_lock(&dma_entry_hash[i].lock);
list_for_each_entry(entry, &dma_entry_hash[i].list, list) {
if (entry->dev == dev)
count += 1;
}
- spin_unlock_irqrestore(&dma_entry_hash[i].lock, flags);
+ spin_unlock(&dma_entry_hash[i].lock);
}
+ local_irq_restore(flags);
+
return count;
}
--
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