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authorChristoph Hellwig <hch@lst.de>2021-08-24 10:52:16 +0300
committerJens Axboe <axboe@kernel.dk>2021-08-24 15:42:40 +0300
commitc4b2b7d150d2b155b317b3e2f66492c6befab2b5 (patch)
tree3f8ce9e05bbb53ba0edc05da9b0bf0f3e03d20c5 /lib/Kconfig.debug
parent539711d7d6fe382a73254cc966602e63242a6fb3 (diff)
downloadlinux-c4b2b7d150d2b155b317b3e2f66492c6befab2b5.tar.xz
block: remove CONFIG_DEBUG_BLOCK_EXT_DEVT
This might have been a neat debug aid when the extended dev_t was added, but that time is long gone. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20210824075216.1179406-3-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'lib/Kconfig.debug')
-rw-r--r--lib/Kconfig.debug27
1 files changed, 0 insertions, 27 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 5ddd575159fb..22a4aa51bd58 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1679,33 +1679,6 @@ config DEBUG_WQ_FORCE_RR_CPU
feature by default. When enabled, memory and cache locality will
be impacted.
-config DEBUG_BLOCK_EXT_DEVT
- bool "Force extended block device numbers and spread them"
- depends on DEBUG_KERNEL
- depends on BLOCK
- default n
- 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
- predetermined contiguous area. However, extended block area
- may introduce non-contiguous block device numbers. This
- option forces most block device numbers to be allocated from
- the extended space and spreads them to discover kernel or
- userland code paths which assume predetermined contiguous
- device number allocation.
-
- Note that turning on this debug option shuffles all the
- device numbers for all IDE and SCSI devices including libata
- ones, so root partition specified using device number
- directly (via rdev or root=MAJ:MIN) won't work anymore.
- Textual device names (root=/dev/sdXn) will continue to work.
-
- Say N if you are unsure.
-
config CPU_HOTPLUG_STATE_CONTROL
bool "Enable CPU hotplug state control"
depends on DEBUG_KERNEL