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authorDoug Chapman <doug.chapman@hp.com>2007-05-07 15:59:46 -0400
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-06-05 11:04:56 -0500
commit29982e9acd3e81a289c73321401427d02eaa8adc (patch)
tree2ab3e26cf0863c602363d563a75987b4c3c7beeb
parent5ecd3100e695228ac5e0ce0e325e252c0f11806f (diff)
[SCSI] fusion: fix for BZ 8426 - massive slowdown on SCSI CD/DVD drive
Patch for: http://bugzilla.kernel.org/show_bug.cgi?id=8426 A recent code cleanup that moved code from mptscsih to mptspi inadvertently change the order some code was called. This caused a massive slowdown (of 150x to 300x) on the CD/DVD drive on the high-end HP Integrity servers. Signed-off-by: Doug Chapman <doug.chapman@hp.com> Acked-by: Eric Moore <eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
-rw-r--r--drivers/message/fusion/mptspi.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c
index d75f7ffbb02e..37bf65348372 100644
--- a/drivers/message/fusion/mptspi.c
+++ b/drivers/message/fusion/mptspi.c
@@ -727,13 +727,15 @@ static int mptspi_slave_configure(struct scsi_device *sdev)
struct _MPT_SCSI_HOST *hd =
(struct _MPT_SCSI_HOST *)sdev->host->hostdata;
VirtTarget *vtarget = scsi_target(sdev)->hostdata;
- int ret = mptscsih_slave_configure(sdev);
+ int ret;
+
+ mptspi_initTarget(hd, vtarget, sdev);
+
+ ret = mptscsih_slave_configure(sdev);
if (ret)
return ret;
- mptspi_initTarget(hd, vtarget, sdev);
-
ddvprintk((MYIOC_s_INFO_FMT "id=%d min_period=0x%02x"
" max_offset=0x%02x max_width=%d\n", hd->ioc->name,
sdev->id, spi_min_period(scsi_target(sdev)),