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PROBE::SCSI.IOENTR(3stap) SCSI Tapset PROBE::SCSI.IOENTR(3stap)

NAME

probe::scsi.ioentry - Prepares a SCSI mid-layer request

SYNOPSIS

probe scsi.ioentry {}

VALUES

device_state

The current state of the device

disk_major

The major number of the disk (-1 if no information)

device_state_str

The current state of the device, as a string

req_addr

The current struct request pointer, as a number

disk_minor

The minor number of the disk (-1 if no information)

DESCRIPTION

Keep every historical prep hook as its own optional alias so RHEL8-era 4.18 still matches, while newer kernels use the blk-mq names: - scsi_prep_fn / sd_prep_fn / sr_prep_fn: request_fn blk_queue_prep_rq (v4.18/4.19; gone by v5.0) - scsi_mq_prep_fn: early blk-mq prep (v4.18 through ~6.x) - scsi_prepare_cmd: current name (renamed from scsi_mq_prep_fn)

SEE ALSO0

tapset::scsi(3stap)

September 2026 SystemTap Tapset Reference Ver