Hi James, This patch set seem to be fine. Please consider this patch set as Acked-by: "Sreekanth Reddy" <Sreekanth.reddy@xxxxxxx>. Regards, Sreekanth >-----Original Message----- >From: linux-scsi-owner@xxxxxxxxxxxxxxx [mailto:linux-scsi- >owner@xxxxxxxxxxxxxxx] On Behalf Of Matthew Wilcox >Sent: Friday, March 28, 2014 2:10 AM >To: linux-scsi@xxxxxxxxxxxxxxx >Cc: Matthew Wilcox; willy@xxxxxxxxxxxxxxx >Subject: [PATCH 0/7] Performance improvements for LSI SCSI cards > >The host lock is a serious scalability problem on 2-socket and larger systems >which are doing a lot of I/O. Before removing the temporary usgae of >DEF_SCSI_QCMD, we need to remove all uses of serial_number. > >An unrelated performance issue is that reusing the most recent driver-specific >data structure to track the I/O instead of the least recently used keeps the >cache-hot lines in use, which is a nice performance improvement. It's already >present in the mpt3sas driver, it just didn't make it into the fusion or mpt2sas >drivers yet. > >Matthew Wilcox (7): > mpt3sas: Remove uses of serial_number > mpt3sas: Remove use of DEF_SCSI_QCMD > mpt2sas: Remove uses of serial_number > mpt2sas: Remove use of DEF_SCSI_QCMD > mpt2sas: Add free smids to the head, not tail of list > fusion: Add free msg frames to the head, not tail of list > fusion: Remove use of DEF_SCSI_QCMD > > drivers/message/fusion/mptbase.c | 2 +- > drivers/message/fusion/mptfc.c | 12 +++++------- > drivers/message/fusion/mptsas.c | 10 ++++------ > drivers/message/fusion/mptscsih.c | 8 +++----- > drivers/message/fusion/mptscsih.h | 2 +- > drivers/message/fusion/mptspi.c | 12 +++++------- > drivers/scsi/mpt2sas/mpt2sas_base.c | 8 ++++---- >drivers/scsi/mpt2sas/mpt2sas_base.h | 2 +- > drivers/scsi/mpt2sas/mpt2sas_ctl.c | 2 +- > drivers/scsi/mpt2sas/mpt2sas_scsih.c | 24 +++++++++--------------- >drivers/scsi/mpt3sas/mpt3sas_base.h | 2 +- > drivers/scsi/mpt3sas/mpt3sas_ctl.c | 2 +- > drivers/scsi/mpt3sas/mpt3sas_scsih.c | 24 +++++++++--------------- > 13 files changed, 45 insertions(+), 65 deletions(-) > >-- >1.9.0 > >-- >To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body >of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at >http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
