7466501608
Avoid taking the host-wide host_lock to check the per-host queue limit. Instead we do an atomic_inc_return early on to grab our slot in the queue, and if necessary decrement it after finishing all checks. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Webb Scales <webbnh@hp.com> Acked-by: Jens Axboe <axboe@kernel.dk> Tested-by: Bart Van Assche <bvanassche@acm.org> Tested-by: Robert Elliott <elliott@hp.com> |
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.. | ||
fc | ||
fc_encode.h | ||
fc_frame.h | ||
fcoe_sysfs.h | ||
iscsi_if.h | ||
iscsi_proto.h | ||
libfc.h | ||
libfcoe.h | ||
libiscsi.h | ||
libiscsi_tcp.h | ||
libsas.h | ||
osd_attributes.h | ||
osd_initiator.h | ||
osd_ore.h | ||
osd_protocol.h | ||
osd_sec.h | ||
osd_sense.h | ||
osd_types.h | ||
sas.h | ||
sas_ata.h | ||
scsi.h | ||
scsi_bsg_iscsi.h | ||
scsi_cmnd.h | ||
scsi_dbg.h | ||
scsi_device.h | ||
scsi_devinfo.h | ||
scsi_dh.h | ||
scsi_driver.h | ||
scsi_eh.h | ||
scsi_host.h | ||
scsi_ioctl.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 |