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authorMatthew Wilcox <matthew@wil.cx>2006-09-28 23:19:20 +0200
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-10-11 20:44:25 +0200
commit3e082a910d217b2e7b186077ebf5a1126a68c62f (patch)
treeb4ef4152b8ad0198283e36c74c990f38d90d27b7 /Documentation
parentACPI: Allow setting SCI_EN bit in PM1_CONTROL register (diff)
downloadlinux-3e082a910d217b2e7b186077ebf5a1126a68c62f.tar.xz
linux-3e082a910d217b2e7b186077ebf5a1126a68c62f.zip
[SCSI] Add ability to scan scsi busses asynchronously
Since it often takes around 20-30 seconds to scan a scsi bus, it's highly advantageous to do this in parallel with other things. The bulk of this patch is ensuring that devices don't change numbering, and that all devices are discovered prior to trying to start init. For those who build SCSI as modules, there's a new scsi_wait_scan module that will ensure all bus scans are finished. This patch only handles drivers which call scsi_scan_host. Fibre Channel, SAS, SATA, USB and Firewire all need additional work. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/kernel-parameters.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index ff571f9298e0..5a92ac085969 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1410,6 +1410,11 @@ and is between 256 and 4096 characters. It is defined in the file
scsi_logging= [SCSI]
+ scsi_mod.scan= [SCSI] sync (default) scans SCSI busses as they are
+ discovered. async scans them in kernel threads,
+ allowing boot to proceed. none ignores them, expecting
+ user space to do the scan.
+
selinux [SELINUX] Disable or enable SELinux at boot time.
Format: { "0" | "1" }
See security/selinux/Kconfig help text.