lguest: notify on empty

[linux-2.6-omap-h63xx.git] / block / blk-settings.c

diff --git a/block/blk-settings.c b/block/blk-settings.c
index 6089384ab06499becc951478d06dda2e22aa7e00..8dd86418f35d88229fdebc890e28cbfb62705c55 100644 (file)
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -168,8 +168,8 @@ void blk_queue_max_sectors(struct request_queue *q, unsigned int max_sectors)
 {
        if ((max_sectors << 9) < PAGE_CACHE_SIZE) {
                max_sectors = 1 << (PAGE_CACHE_SHIFT - 9);
-               printk(KERN_INFO "%s: set to minimum %d\n", __FUNCTION__,
-                                                       max_sectors);
+               printk(KERN_INFO "%s: set to minimum %d\n",
+                      __func__, max_sectors);
        }
 
        if (BLK_DEF_MAX_SECTORS > max_sectors)
@@ -196,8 +196,8 @@ void blk_queue_max_phys_segments(struct request_queue *q,
 {
        if (!max_segments) {
                max_segments = 1;
-               printk(KERN_INFO "%s: set to minimum %d\n", __FUNCTION__,
-                                                       max_segments);
+               printk(KERN_INFO "%s: set to minimum %d\n",
+                      __func__, max_segments);
        }
 
        q->max_phys_segments = max_segments;
@@ -220,8 +220,8 @@ void blk_queue_max_hw_segments(struct request_queue *q,
 {
        if (!max_segments) {
                max_segments = 1;
-               printk(KERN_INFO "%s: set to minimum %d\n", __FUNCTION__,
-                                                       max_segments);
+               printk(KERN_INFO "%s: set to minimum %d\n",
+                      __func__, max_segments);
        }
 
        q->max_hw_segments = max_segments;
@@ -241,8 +241,8 @@ void blk_queue_max_segment_size(struct request_queue *q, unsigned int max_size)
 {
        if (max_size < PAGE_CACHE_SIZE) {
                max_size = PAGE_CACHE_SIZE;
-               printk(KERN_INFO "%s: set to minimum %d\n", __FUNCTION__,
-                                                       max_size);
+               printk(KERN_INFO "%s: set to minimum %d\n",
+                      __func__, max_size);
        }
 
        q->max_segment_size = max_size;
@@ -286,8 +286,14 @@ void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b)
        t->max_hw_segments = min(t->max_hw_segments, b->max_hw_segments);
        t->max_segment_size = min(t->max_segment_size, b->max_segment_size);
        t->hardsect_size = max(t->hardsect_size, b->hardsect_size);
-       if (!test_bit(QUEUE_FLAG_CLUSTER, &b->queue_flags))
+       if (!t->queue_lock)
+               WARN_ON_ONCE(1);
+       else if (!test_bit(QUEUE_FLAG_CLUSTER, &b->queue_flags)) {
+               unsigned long flags;
+               spin_lock_irqsave(t->queue_lock, flags);
                queue_flag_clear(QUEUE_FLAG_CLUSTER, t);
+               spin_unlock_irqrestore(t->queue_lock, flags);
+       }
 }
 EXPORT_SYMBOL(blk_queue_stack_limits);
 
@@ -357,8 +363,8 @@ void blk_queue_segment_boundary(struct request_queue *q, unsigned long mask)
 {
        if (mask < PAGE_CACHE_SIZE - 1) {
                mask = PAGE_CACHE_SIZE - 1;
-               printk(KERN_INFO "%s: set to minimum %lx\n", __FUNCTION__,
-                                                       mask);
+               printk(KERN_INFO "%s: set to minimum %lx\n",
+                      __func__, mask);
        }
 
        q->seg_boundary_mask = mask;