提交 29982e9a 编写于 作者: D Doug Chapman 提交者: James Bottomley

[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: NDoug Chapman <doug.chapman@hp.com>
Acked-by: NEric Moore <eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
上级 5ecd3100
...@@ -727,13 +727,15 @@ static int mptspi_slave_configure(struct scsi_device *sdev) ...@@ -727,13 +727,15 @@ static int mptspi_slave_configure(struct scsi_device *sdev)
struct _MPT_SCSI_HOST *hd = struct _MPT_SCSI_HOST *hd =
(struct _MPT_SCSI_HOST *)sdev->host->hostdata; (struct _MPT_SCSI_HOST *)sdev->host->hostdata;
VirtTarget *vtarget = scsi_target(sdev)->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) if (ret)
return ret; return ret;
mptspi_initTarget(hd, vtarget, sdev);
ddvprintk((MYIOC_s_INFO_FMT "id=%d min_period=0x%02x" ddvprintk((MYIOC_s_INFO_FMT "id=%d min_period=0x%02x"
" max_offset=0x%02x max_width=%d\n", hd->ioc->name, " max_offset=0x%02x max_width=%d\n", hd->ioc->name,
sdev->id, spi_min_period(scsi_target(sdev)), sdev->id, spi_min_period(scsi_target(sdev)),
......
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