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[PATCH] kdump: introduce "reset_devices" command line option

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Resetting the devices during driver initialization can be a costly
operation in terms of time (especially scsi devices).  This option can be
used by drivers to know that user forcibly wants the devices to be reset
during initialization.

This option can be useful while kernel is booting in unreliable
environment.  For ex.  during kdump boot where devices are in unknown
random state and BIOS execution has been skipped.

Signed-off-by: Vivek Goyal <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Vivek Goyal 2006-09-27 01:50:44 -07:00 • committed by Linus Torvalds
commit 7e96287ddc
3 changed files with 24 additions and 0 deletions
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3
Documentation/kernel-parameters.txt
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@ -1370,6 +1370,9 @@ running once the system is up.
Reserves a hole at the top of the kernel virtual
address space.
reset_devices [KNL] Force drivers to reset the underlying device
during initialization.
resume= [SWSUSP]
Specify the partition device for software suspend