aha/drivers/scsi/libfc
Chris Leech c1ecb90a66 [SCSI] libfc: reduce hold time on SCSI host lock
Introduce a new lock to protect the list of fc_fcp_pkt structs in libfc
instead of using the host lock.  This reduces the contention of this heavily
used lock, and I see up to a 25% performance gain in CPU bound small I/O
tests when scaling out across multiple quad-core CPUs.

The big win is in removing the host lock from the completion path
completely, as it does not need to be held around the call to scsi_done.

Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-12 16:30:33 -06:00
..
fc_disc.c [SCSI] libfc fcoe: increase ELS and CT timeouts 2009-12-04 12:01:27 -06:00
fc_elsct.c [SCSI] libfc: fix fc_els_resp_type to correct display of CT responses 2009-12-04 12:01:17 -06:00
fc_exch.c [SCSI] libfc: fix an issue of pending exch/es after i/f destroyed or rmmod fcoe 2009-12-04 12:01:26 -06:00
fc_fcp.c [SCSI] libfc: reduce hold time on SCSI host lock 2009-12-12 16:30:33 -06:00
fc_frame.c [SCSI] libfc, fcoe: fixes for highmem skb linearize panics 2009-12-04 12:01:25 -06:00
fc_libfc.c [SCSI] libfc: Formatting cleanups across libfc 2009-12-04 12:01:07 -06:00
fc_libfc.h [SCSI] libfc: Formatting cleanups across libfc 2009-12-04 12:01:07 -06:00
fc_lport.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
fc_npiv.c [SCSI] libfc: vport link handling and fc_vport state managment 2009-12-04 12:00:57 -06:00
fc_rport.c [SCSI] libfc: remote port gets stuck in restart state without really restarting 2009-12-12 16:29:47 -06:00
Makefile [SCSI] libfc: add some generic NPIV support routines to libfc 2009-12-04 12:00:56 -06:00