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Commit 1306ad4e authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz Committed by Jens Axboe
Browse files

block: remove redundant 'default n' from Kconfig-s 



'default n' is the default value for any bool or tristate Kconfig
setting so there is no need to write it explicitly.

Also since commit f467c564 ("kconfig: only write '# CONFIG_FOO
is not set' for visible symbols") the Kconfig behavior is the same
regardless of 'default n' being present or not:

    ...
    One side effect of (and the main motivation for) this change is making
    the following two definitions behave exactly the same:

        config FOO
                bool

        config FOO
                bool
                default n

    With this change, neither of these will generate a
    '# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied).
    That might make it clearer to people that a bare 'default n' is
    redundant.
    ...

Signed-off-by: default avatarBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 766c8ceb

block/Kconfig

+0 −7
Original line number Diff line number Diff line
@@ -74,7 +74,6 @@ config BLK_DEV_BSG 


config BLK_DEV_BSGLIB

	bool "Block layer SG support v4 helper lib"

	default n

	select BLK_DEV_BSG

	select BLK_SCSI_REQUEST

	help
@@ -107,7 +106,6 @@ config BLK_DEV_ZONED 
config BLK_DEV_THROTTLING

	bool "Block layer bio throttling support"

	depends on BLK_CGROUP=y

	default n

	---help---

	Block layer bio throttling support. It can be used to limit

	the IO rate to a device. IO rate policies are per cgroup and
@@ -119,7 +117,6 @@ config BLK_DEV_THROTTLING 
config BLK_DEV_THROTTLING_LOW

	bool "Block throttling .low limit interface support (EXPERIMENTAL)"

	depends on BLK_DEV_THROTTLING

	default n

	---help---

	Add .low limit interface for block throttling. The low limit is a best

	effort limit to prioritize cgroups. Depending on the setting, the limit
@@ -130,7 +127,6 @@ config BLK_DEV_THROTTLING_LOW 


config BLK_CMDLINE_PARSER

	bool "Block device command line partition parser"

	default n

	---help---

	Enabling this option allows you to specify the partition layout from

	the kernel boot args.  This is typically of use for embedded devices
@@ -141,7 +137,6 @@ config BLK_CMDLINE_PARSER 


config BLK_WBT

	bool "Enable support for block device writeback throttling"

	default n

	---help---

	Enabling this option enables the block layer to throttle buffered

	background writeback from the VM, making it more smooth and having
@@ -152,7 +147,6 @@ config BLK_WBT 
config BLK_CGROUP_IOLATENCY

	bool "Enable support for latency based cgroup IO protection"

	depends on BLK_CGROUP=y

	default n

	---help---

	Enabling this option enables the .latency interface for IO throttling.

	The IO controller will attempt to maintain average IO latencies below
@@ -163,7 +157,6 @@ config BLK_CGROUP_IOLATENCY 


config BLK_WBT_SQ

	bool "Single queue writeback throttling"

	default n

	depends on BLK_WBT

	---help---

	Enable writeback throttling by default on legacy single queue devices

block/Kconfig.iosched

+0 −3
Original line number Diff line number Diff line
@@ -36,7 +36,6 @@ config IOSCHED_CFQ 
config CFQ_GROUP_IOSCHED

	bool "CFQ Group Scheduling support"

	depends on IOSCHED_CFQ && BLK_CGROUP

	default n

	---help---

	  Enable group IO scheduling in CFQ.
@@ -82,7 +81,6 @@ config MQ_IOSCHED_KYBER 


config IOSCHED_BFQ

	tristate "BFQ I/O scheduler"

	default n

	---help---

	BFQ I/O scheduler for BLK-MQ. BFQ distributes the bandwidth of

	of the device among all processes according to their weights,
@@ -94,7 +92,6 @@ config IOSCHED_BFQ 
config BFQ_GROUP_IOSCHED

       bool "BFQ hierarchical scheduling support"

       depends on IOSCHED_BFQ && BLK_CGROUP

       default n

       ---help---



       Enable hierarchical scheduling in BFQ, using the blkio