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2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc 
 kernel/block/Kconfig
....@@ -26,31 +26,13 @@
2626 
2727 if BLOCK
2828 
29
-config LBDAF
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-	bool "Support for large (2TB+) block devices and files"
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-	depends on !64BIT
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-	default y
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-	help
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-	  Enable block devices or files of size 2TB and larger.
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-
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-	  This option is required to support the full capacity of large
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-	  (2TB+) block devices, including RAID, disk, Network Block Device,
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-	  Logical Volume Manager (LVM) and loopback.
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-	
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-	  This option also enables support for single files larger than
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-	  2TB.
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-
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-	  The ext4 filesystem requires that this feature be enabled in
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-	  order to support filesystems that have the huge_file feature
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-	  enabled.  Otherwise, it will refuse to mount in the read-write
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-	  mode any filesystems that use the huge_file feature, which is
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-	  enabled by default by mke2fs.ext4.
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-
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-	  The GFS2 filesystem also requires this feature.
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-
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-	  If unsure, say Y.
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+config BLK_RQ_ALLOC_TIME
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+	bool
5231 
5332 config BLK_SCSI_REQUEST
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+	bool
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+
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+config BLK_CGROUP_RWSTAT
5436 	bool
5537 
5638 config BLK_DEV_BSG
....@@ -74,7 +56,6 @@
7456 
7557 config BLK_DEV_BSGLIB
7658 	bool "Block layer SG support v4 helper lib"
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-	default n
7859 	select BLK_DEV_BSG
7960 	select BLK_SCSI_REQUEST
8061 	help
....@@ -85,8 +66,7 @@
8566 
8667 config BLK_DEV_INTEGRITY
8768 	bool "Block layer data integrity support"
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-	select CRC_T10DIF if BLK_DEV_INTEGRITY
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-	---help---
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+	help
9070 	Some storage devices allow extra information to be
9171 	stored/retrieved to help protect the data.  The block layer
9272 	data integrity option provides hooks which can be used by
....@@ -96,31 +76,37 @@
9676 	T10/SCSI Data Integrity Field or the T13/ATA External Path
9777 	Protection.  If in doubt, say N.
9878 
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+config BLK_DEV_INTEGRITY_T10
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+	tristate
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+	depends on BLK_DEV_INTEGRITY
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+	select CRC_T10DIF
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+
9984 config BLK_DEV_ZONED
10085 	bool "Zoned block device support"
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-	---help---
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+	select MQ_IOSCHED_DEADLINE
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+	help
10288 	Block layer zoned block device support. This option enables
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-	support for ZAC/ZBC host-managed and host-aware zoned block devices.
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+	support for ZAC/ZBC/ZNS host-managed and host-aware zoned block
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+	devices.
10491 
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-	Say yes here if you have a ZAC or ZBC storage device.
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+	Say yes here if you have a ZAC, ZBC, or ZNS storage device.
10693 
10794 config BLK_DEV_THROTTLING
10895 	bool "Block layer bio throttling support"
10996 	depends on BLK_CGROUP=y
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-	default n
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-	---help---
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+	select BLK_CGROUP_RWSTAT
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+	help
11299 	Block layer bio throttling support. It can be used to limit
113100 	the IO rate to a device. IO rate policies are per cgroup and
114101 	one needs to mount and use blkio cgroup controller for creating
115102 	cgroups and specifying per device IO rate policies.
116103 
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-	See Documentation/cgroup-v1/blkio-controller.txt for more information.
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+	See Documentation/admin-guide/cgroup-v1/blkio-controller.rst for more information.
118105 
119106 config BLK_DEV_THROTTLING_LOW
120107 	bool "Block throttling .low limit interface support (EXPERIMENTAL)"
121108 	depends on BLK_DEV_THROTTLING
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-	default n
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-	---help---
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+	help
124110 	Add .low limit interface for block throttling. The low limit is a best
125111 	effort limit to prioritize cgroups. Depending on the setting, the limit
126112 	can be used to protect cgroups in terms of bandwidth/iops and better
....@@ -130,30 +116,34 @@
130116 
131117 config BLK_CMDLINE_PARSER
132118 	bool "Block device command line partition parser"
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-	default n
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-	---help---
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+	help
135120 	Enabling this option allows you to specify the partition layout from
136121 	the kernel boot args.  This is typically of use for embedded devices
137122 	which don't otherwise have any standardized method for listing the
138123 	partitions on a block device.
139124 
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-	See Documentation/block/cmdline-partition.txt for more information.
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+	See Documentation/block/cmdline-partition.rst for more information.
141126 
142127 config BLK_WBT
143128 	bool "Enable support for block device writeback throttling"
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-	default n
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-	---help---
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+	help
146130 	Enabling this option enables the block layer to throttle buffered
147131 	background writeback from the VM, making it more smooth and having
148132 	less impact on foreground operations. The throttling is done
149133 	dynamically on an algorithm loosely based on CoDel, factoring in
150134 	the realtime performance of the disk.
151135 
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+config BLK_WBT_MQ
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+	bool "Enable writeback throttling by default"
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+	default y
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+	depends on BLK_WBT
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+	help
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+	Enable writeback throttling by default for request-based block devices.
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+
152143 config BLK_CGROUP_IOLATENCY
153144 	bool "Enable support for latency based cgroup IO protection"
154145 	depends on BLK_CGROUP=y
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-	default n
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-	---help---
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+	help
157147 	Enabling this option enables the .latency interface for IO throttling.
158148 	The IO controller will attempt to maintain average IO latencies below
159149 	the configured latency target, throttling anybody with a higher latency
....@@ -161,27 +151,31 @@
161151 
162152 	Note, this is an experimental interface and could be changed someday.
163153 
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-config BLK_WBT_SQ
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-	bool "Single queue writeback throttling"
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-	default n
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-	depends on BLK_WBT
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-	---help---
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-	Enable writeback throttling by default on legacy single queue devices
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+config BLK_CGROUP_IOCOST
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+	bool "Enable support for cost model based cgroup IO controller"
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+	depends on BLK_CGROUP=y
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+	select BLK_RQ_IO_DATA_LEN
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+	select BLK_RQ_ALLOC_TIME
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+	help
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+	Enabling this option enables the .weight interface for cost
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+	model based proportional IO control.  The IO controller
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+	distributes IO capacity between different groups based on
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+	their share of the overall weight distribution.
170164 
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-config BLK_WBT_MQ
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-	bool "Multiqueue writeback throttling"
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-	default y
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-	depends on BLK_WBT
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-	---help---
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-	Enable writeback throttling by default on multiqueue devices.
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-	Multiqueue currently doesn't have support for IO scheduling,
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-	enabling this option is recommended.
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+config BLK_CGROUP_IOPRIO
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+	bool "Cgroup I/O controller for assigning an I/O priority class"
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+	depends on BLK_CGROUP
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+	help
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+	Enable the .prio interface for assigning an I/O priority class to
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+	requests. The I/O priority class affects the order in which an I/O
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+	scheduler and block devices process requests. Only some I/O schedulers
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+	and some block devices support I/O priorities.
179173 
180174 config BLK_DEBUG_FS
181175 	bool "Block layer debugging information in debugfs"
182176 	default y
183177 	depends on DEBUG_FS
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-	---help---
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+	help
185179 	Include block layer debugging information in debugfs. This information
186180 	is mostly useful for kernel developers, but it doesn't incur any cost
187181 	at runtime.
....@@ -195,7 +189,7 @@
195189 
196190 config BLK_SED_OPAL
197191 	bool "Logic for interfacing with Opal enabled SEDs"
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-	---help---
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+	help
199193 	Builds Logic for interfacing with Opal enabled controllers.
200194 	Enabling this option enables users to setup/unlock/lock
201195 	Locking ranges for SED devices using the Opal protocol.
....@@ -211,7 +205,7 @@
211205 	bool "Enable crypto API fallback for blk-crypto"
212206 	depends on BLK_INLINE_ENCRYPTION
213207 	select CRYPTO
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-	select CRYPTO_BLKCIPHER
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+	select CRYPTO_SKCIPHER
215209 	help
216210 	  Enabling this lets the block layer handle inline encryption
217211 	  by falling back to the kernel crypto API when inline
....@@ -245,4 +239,7 @@
245239 	depends on BLOCK && INFINIBAND
246240 	default y
247241 
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-source block/Kconfig.iosched
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+config BLK_PM
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+	def_bool BLOCK && PM
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+
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+source "block/Kconfig.iosched"