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| author | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:27:45 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:27:45 +0200 |
| commit | d939d2851fd12568e2eabb2916769e8a57ba5c89 (patch) | |
| tree | f3158a5ddd41541a61126f9e48de1ce89c632f64 /block/blk-settings.c | |
| parent | 9f5314fb4d556d3132c784d0df47352b2830ca53 (diff) | |
| parent | 066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff) | |
Merge branch 'linus' into x86/irq
Diffstat (limited to 'block/blk-settings.c')
| -rw-r--r-- | block/blk-settings.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/block/blk-settings.c b/block/blk-settings.c index bb93d4c32775..8dd86418f35d 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -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); |