Commit 0e11e342 authored by Tejun Heo's avatar Tejun Heo Committed by Jens Axboe

block: add BIG FAT WARNING to CONFIG_DEBUG_BLOCK_EXT_DEVT

CONFIG_DEBUG_BLOCK_EXT_DEVT can break booting even on some modern
distros.  Add BIG FAT WARNING to keep people at a safe distance.
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 54514a70
...@@ -652,6 +652,11 @@ config DEBUG_BLOCK_EXT_DEVT ...@@ -652,6 +652,11 @@ config DEBUG_BLOCK_EXT_DEVT
depends on BLOCK depends on BLOCK
default n default n
help help
BIG FAT WARNING: ENABLING THIS OPTION MIGHT BREAK BOOTING ON
SOME DISTRIBUTIONS. DO NOT ENABLE THIS UNLESS YOU KNOW WHAT
YOU ARE DOING. Distros, please enable this and fix whatever
is broken.
Conventionally, block device numbers are allocated from Conventionally, block device numbers are allocated from
predetermined contiguous area. However, extended block area predetermined contiguous area. However, extended block area
may introduce non-contiguous block device numbers. This may introduce non-contiguous block device numbers. This
......
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