Subject: + partitions-efi-complete-documentation-of-gpt-kernel-param-purpose.patch added to -mm tree
To: davidlohr@xxxxxx,Matt_Domsch@xxxxxxxx,aswin@xxxxxx,bugzilla@xxxxxxxxxxxxxxxxx,matt.fleming@xxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Wed, 04 Dec 2013 15:23:02 -0800
The patch titled
Subject: partitions/efi: complete documentation of gpt kernel param purpose
has been added to the -mm tree. Its filename is
partitions-efi-complete-documentation-of-gpt-kernel-param-purpose.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/partitions-efi-complete-documentation-of-gpt-kernel-param-purpose.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/partitions-efi-complete-documentation-of-gpt-kernel-param-purpose.patch
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From: Davidlohr Bueso <davidlohr@xxxxxx>
Subject: partitions/efi: complete documentation of gpt kernel param purpose
The usage of the 'gpt' kernel parameter is twofold: (i) skip any mbr
integrity checks and (ii) enable the backup GPT header to be used in
situations where the primary one is corrupted. This last "feature" is not
obvious and needs to be properly documented in the kernel-parameters
document.
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=63591
Signed-off-by: Davidlohr Bueso <davidlohr@xxxxxx>
Cc: Matt Domsch <Matt_Domsch@xxxxxxxx>
Cc: Matt Fleming <matt.fleming@xxxxxxxxx>
Cc: "Chandramouleeswaran,Aswin" <aswin@xxxxxx>
Cc: Chris Murphy <bugzilla@xxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/kernel-parameters.txt | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff -puN Documentation/kernel-parameters.txt~partitions-efi-complete-documentation-of-gpt-kernel-param-purpose Documentation/kernel-parameters.txt
--- a/Documentation/kernel-parameters.txt~partitions-efi-complete-documentation-of-gpt-kernel-param-purpose
+++ a/Documentation/kernel-parameters.txt
@@ -1013,7 +1013,9 @@ bytes respectively. Such letter suffixes
debugfs files are removed at module unload time.
gpt [EFI] Forces disk with valid GPT signature but
- invalid Protective MBR to be treated as GPT.
+ invalid Protective MBR to be treated as GPT. If the
+ primary GPT is corrupted, it enables the backup/alternate
+ GPT to be used instead.
grcan.enable0= [HW] Configuration of physical interface 0. Determines
the "Enable 0" bit of the configuration register.
_
Patches currently in -mm which might be from davidlohr@xxxxxx are
mm-mmapc-add-mlock_future_check-helper.patch
mm-mlock-prepare-params-outside-critical-region.patch
partitions-efi-complete-documentation-of-gpt-kernel-param-purpose.patch
ipc-semc-avoid-overflow-of-semop-undo-semadj-value.patch
ipc-semc-avoid-overflow-of-semop-undo-semadj-value-fix.patch
ipc-semc-avoid-overflow-of-semop-undo-semadj-value-fix-2.patch
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