Bart Van Assche 01b57fa035 scsi: core: Introduce the scsi_cmd_to_rq() function ... BugLink: https://bugs.launchpad.net/bugs/2049084 [ Upstream commit 51f3a47889 ] The 'request' member of struct scsi_cmnd is superfluous. The struct request and struct scsi_cmnd data structures are adjacent and hence the request pointer can be derived easily from a scsi_cmnd pointer. Introduce a helper function that performs that conversion in a type-safe way. This patch is the first step towards removing the request member from struct scsi_cmnd. Making that change has the following advantages: - This is a performance optimization since adding an offset to a pointer takes less time than dereferencing a pointer. - struct scsi_cmnd becomes smaller. Link: https://lore.kernel.org/r/20210809230355.8186-2-bvanassche@acm.org Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Ming Lei <ming.lei@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Stable-dep-of: 19597cad64d6 ("scsi: qla2xxx: Fix system crash due to bad pointer access") Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com> Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>		2024-02-02 14:13:17 +01:00
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fc	…
fc_encode.h	…
fc_frame.h	…
fcoe_sysfs.h	…
iscsi_if.h	…
iscsi_proto.h	…
iser.h	…
libfc.h	…
libfcoe.h	…
libiscsi.h	…
libiscsi_tcp.h	…
libsas.h	…
sas.h	…
sas_ata.h	…
scsi.h	…
scsi_bsg_iscsi.h	…
scsi_cmnd.h	scsi: core: Introduce the scsi_cmd_to_rq() function	2024-02-02 14:13:17 +01:00
scsi_common.h	…
scsi_dbg.h	…
scsi_device.h	…
scsi_devinfo.h	…
scsi_dh.h	…
scsi_driver.h	…
scsi_eh.h	…
scsi_host.h	scsi: core: Use 32-bit hostnum in scsi_host_lookup()	2023-10-30 11:42:15 +01:00
scsi_ioctl.h	…
scsi_proto.h	…
scsi_request.h	…
scsi_tcq.h	…
scsi_transport.h	…
scsi_transport_fc.h	…
scsi_transport_iscsi.h	…
scsi_transport_sas.h	…
scsi_transport_spi.h	…
scsi_transport_srp.h	…
scsicam.h	…
sg.h	…
srp.h	…
viosrp.h	…