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| author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2009-06-18 21:03:23 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-06-21 18:10:41 +0200 |
| commit | 5e2fb917920c62c5ad260962471aeb578b52ac40 (patch) | |
| tree | c427070a8ad52def1796af03974551c9d8931063 /drivers/scsi/Kconfig | |
| parent | ibmvfc: Fix endless PRLI loop in discovery (diff) | |
| download | linux-5e2fb917920c62c5ad260962471aeb578b52ac40.tar.xz linux-5e2fb917920c62c5ad260962471aeb578b52ac40.zip | |
explain the hidden scsi_wait_scan Kconfig variable
People keep sending patches to expose CONFIG_SCSI_WAIT_SCAN as a tunable
item. These patches aren't accepted upstream, so let's stop the ongoing
irritation of people due to the unconditionally installed module and its
Kconfig symbol.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/Kconfig')
| -rw-r--r-- | drivers/scsi/Kconfig | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 6a19ed9a1194..9c23122f755f 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -258,10 +258,21 @@ config SCSI_SCAN_ASYNC or async on the kernel's command line. config SCSI_WAIT_SCAN - tristate + tristate # No prompt here, this is an invisible symbol. default m depends on SCSI depends on MODULES +# scsi_wait_scan is a loadable module which waits until all the async scans are +# complete. The idea is to use it in initrd/ initramfs scripts. You modprobe +# it after all the modprobes of the root SCSI drivers and it will wait until +# they have all finished scanning their buses before allowing the boot to +# proceed. (This method is not applicable if targets boot independently in +# parallel with the initiator, or with transports with non-deterministic target +# discovery schemes, or if a transport driver does not support scsi_wait_scan.) +# +# This symbol is not exposed as a prompt because little is to be gained by +# disabling it, whereas people who accidentally switch it off may wonder why +# their mkinitrd gets into trouble. menu "SCSI Transports" depends on SCSI |