direct_make_request

Name:direct_make_request - hand a buffer directly to its device driver for I/O*@bio: The bio describing the location in memory and on the device.* This function behaves like generic_make_request(), but does not protect* against recursion

Proto:blk_qc_t direct_make_request(struct bio *bio)

Type:blk_qc_t

Parameter:

Type	Parameter	Name
struct bio *	bio

1115

q = queue

1116

nowait = bottom bits req flags, * top bits REQ_OP. Use * accessors. & REQ_NOWAIT

1119

If Not generic_make_request_checks(bio) Then Return BLK_QC_T_NONE

1122

If Value for the false possibility is greater at compile time(lk_queue_enter() - try to increase q->q_usage_counter*@q: request queue pointer*@flags: BLK_MQ_REQ_NOWAIT and/or BLK_MQ_REQ_PREEMPT) Then

1123

If nowait && Not blk_queue_dying(q) Then bi_status = BLK_STS_AGAIN

1125

Else bi_status = BLK_STS_IOERR

1127

_endio - end I/O on a bio*@bio: bio* Description:* bio_endio() will end I/O on the whole bio. bio_endio() is the preferred* way to end I/O on a bio. No one should call bi_end_io() directly on a

1128

Return BLK_QC_T_NONE

1131

ret = make_request_fn(q, bio)

1132

blk_queue_exit(q)

1133

Return ret

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