BLK_PEEK_REQUEST

Section: Block Devices (9)
Updated: February 2011
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NAME

blk_peek_request - peek at the top of a request queue  

SYNOPSIS

struct request * blk_peek_request(struct request_queue * q);
 

ARGUMENTS

q

request queue to peek at
 

DESCRIPTION

Return the request at the top of q. The returned request should be started using blk_start_request before LLD starts processing it.  

RETURN

Pointer to the request at the top of q if available. Null otherwise.  

CONTEXT

queue_lock must be held.  

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