block: remove CONFIG_LBDAF

Currently support for 64-bit sector_t and blkcnt_t is optional on 32-bit
architectures.  These types are required to support block device and/or
file sizes larger than 2 TiB, and have generally defaulted to on for
a long time.  Enabling the option only increases the i386 tinyconfig
size by 145 bytes, and many data structures already always use
64-bit values for their in-core and on-disk data structures anyway,
so there should not be a large change in dynamic memory usage either.

Dropping this option removes a somewhat weird non-default config that
has cause various bugs or compiler warnings when actually used.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

Documentation/process/submit-checklist.rst

@@ -72,47 +72,44 @@ and elsewhere regarding submitting Linux kernel patches.
 13) Has been build- and runtime tested with and without ``CONFIG_SMP`` and
     ``CONFIG_PREEMPT.``
 
-14) If the patch affects IO/Disk, etc: has been tested with and without
-    ``CONFIG_LBDAF.``
+16) All codepaths have been exercised with all lockdep features enabled.
 
-15) All codepaths have been exercised with all lockdep features enabled.
+17) All new ``/proc`` entries are documented under ``Documentation/``
 
-16) All new ``/proc`` entries are documented under ``Documentation/``
-
-17) All new kernel boot parameters are documented in
+18) All new kernel boot parameters are documented in
     ``Documentation/admin-guide/kernel-parameters.rst``.
 
-18) All new module parameters are documented with ``MODULE_PARM_DESC()``
+19) All new module parameters are documented with ``MODULE_PARM_DESC()``
 
-19) All new userspace interfaces are documented in ``Documentation/ABI/``.
+20) All new userspace interfaces are documented in ``Documentation/ABI/``.
     See ``Documentation/ABI/README`` for more information.
     Patches that change userspace interfaces should be CCed to
     linux-api@vger.kernel.org.
 
-20) Check that it all passes ``make headers_check``.
+21) Check that it all passes ``make headers_check``.
 
-21) Has been checked with injection of at least slab and page-allocation
+22) Has been checked with injection of at least slab and page-allocation
     failures.  See ``Documentation/fault-injection/``.
 
     If the new code is substantial, addition of subsystem-specific fault
     injection might be appropriate.
 
-22) Newly-added code has been compiled with ``gcc -W`` (use
+23) Newly-added code has been compiled with ``gcc -W`` (use
     ``make EXTRA_CFLAGS=-W``).  This will generate lots of noise, but is good
     for finding bugs like "warning: comparison between signed and unsigned".
 
-23) Tested after it has been merged into the -mm patchset to make sure
+24) Tested after it has been merged into the -mm patchset to make sure
     that it still works with all of the other queued patches and various
     changes in the VM, VFS, and other subsystems.
 
-24) All memory barriers {e.g., ``barrier()``, ``rmb()``, ``wmb()``} need a
+25) All memory barriers {e.g., ``barrier()``, ``rmb()``, ``wmb()``} need a
     comment in the source code that explains the logic of what they are doing
     and why.
 
-25) If any ioctl's are added by the patch, then also update
+26) If any ioctl's are added by the patch, then also update
     ``Documentation/ioctl/ioctl-number.txt``.
 
-26) If your modified source code depends on or uses any of the kernel
+27) If your modified source code depends on or uses any of the kernel
     APIs or features that are related to the following ``Kconfig`` symbols,
     then test multiple builds with the related ``Kconfig`` symbols disabled
     and/or ``=m`` (if that option is available) [not all of these at the

Documentation/translations/ja_JP/SubmitChecklist

@@ -74,38 +74,34 @@ Linux カーネルパッチ投稿者向けチェックリスト
 13: CONFIG_SMP, CONFIG_PREEMPT を有効にした場合と無効にした場合の両方で
     ビルドした上、動作確認を行ってください。
 
-14: もしパッチがディスクのI/O性能などに影響を与えるようであれば、
-    'CONFIG_LBDAF'オプションを有効にした場合と無効にした場合の両方で
-    テストを実施してみてください。
+14: lockdepの機能を全て有効にした上で、全てのコードパスを評価してください。
 
-15: lockdepの機能を全て有効にした上で、全てのコードパスを評価してください。
-
-16: /proc に新しいエントリを追加した場合には、Documentation/ 配下に
+15: /proc に新しいエントリを追加した場合には、Documentation/ 配下に
     必ずドキュメントを追加してください。
 
-17: 新しいブートパラメータを追加した場合には、
+16: 新しいブートパラメータを追加した場合には、
     必ずDocumentation/admin-guide/kernel-parameters.rst に説明を追加してください。
 
-18: 新しくmoduleにパラメータを追加した場合には、MODULE_PARM_DESC()を
+17: 新しくmoduleにパラメータを追加した場合には、MODULE_PARM_DESC()を
     利用して必ずその説明を記述してください。
 
-19: 新しいuserspaceインタフェースを作成した場合には、Documentation/ABI/ に
+18: 新しいuserspaceインタフェースを作成した場合には、Documentation/ABI/ に
     Documentation/ABI/README を参考にして必ずドキュメントを追加してください。
 
-20: 'make headers_check'を実行して全く問題がないことを確認してください。
+19: 'make headers_check'を実行して全く問題がないことを確認してください。
 
-21: 少なくともslabアロケーションとpageアロケーションに失敗した場合の
+20: 少なくともslabアロケーションとpageアロケーションに失敗した場合の
     挙動について、fault-injectionを利用して確認してください。
     Documentation/fault-injection/ を参照してください。
 
     追加したコードがかなりの量であったならば、サブシステム特有の
     fault-injectionを追加したほうが良いかもしれません。
 
-22: 新たに追加したコードは、`gcc -W'でコンパイルしてください。
+21: 新たに追加したコードは、`gcc -W'でコンパイルしてください。
     このオプションは大量の不要なメッセージを出力しますが、
     "warning: comparison between signed and unsigned" のようなメッセージは、
     バグを見つけるのに役に立ちます。
 
-23: 投稿したパッチが -mm パッチセットにマージされた後、全ての既存のパッチや
+22: 投稿したパッチが -mm パッチセットにマージされた後、全ての既存のパッチや
     VM, VFS およびその他のサブシステムに関する様々な変更と、現時点でも共存
     できることを確認するテストを行ってください。

arch/arc/configs/haps_hs_defconfig

@@ -15,7 +15,6 @@ CONFIG_PERF_EVENTS=y
 # CONFIG_COMPAT_BRK is not set
 CONFIG_SLAB=y
 CONFIG_MODULES=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set

arch/arc/configs/haps_hs_smp_defconfig

@@ -17,7 +17,6 @@ CONFIG_PERF_EVENTS=y
 CONFIG_SLAB=y
 CONFIG_KPROBES=y
 CONFIG_MODULES=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set

arch/arc/configs/nsim_700_defconfig

@@ -18,7 +18,6 @@ CONFIG_PERF_EVENTS=y
 CONFIG_ISA_ARCOMPACT=y
 CONFIG_KPROBES=y
 CONFIG_MODULES=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set

arch/arc/configs/nsim_hs_defconfig

@@ -20,7 +20,6 @@ CONFIG_MODULES=y
 CONFIG_MODULE_FORCE_LOAD=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODULE_FORCE_UNLOAD=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set

arch/arc/configs/nsim_hs_smp_defconfig

@@ -18,7 +18,6 @@ CONFIG_MODULES=y
 CONFIG_MODULE_FORCE_LOAD=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODULE_FORCE_UNLOAD=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set

arch/arc/configs/nsimosci_defconfig

@@ -18,7 +18,6 @@ CONFIG_PERF_EVENTS=y
 CONFIG_ISA_ARCOMPACT=y
 CONFIG_KPROBES=y
 CONFIG_MODULES=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set

arch/arc/configs/nsimosci_hs_defconfig

@@ -17,7 +17,6 @@ CONFIG_PERF_EVENTS=y
 # CONFIG_COMPAT_BRK is not set
 CONFIG_KPROBES=y
 CONFIG_MODULES=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set

arch/arc/configs/nsimosci_hs_smp_defconfig

@@ -12,7 +12,6 @@ CONFIG_PERF_EVENTS=y
 # CONFIG_COMPAT_BRK is not set
 CONFIG_KPROBES=y
 CONFIG_MODULES=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set

arch/arm/configs/aspeed_g4_defconfig

@@ -23,7 +23,6 @@ CONFIG_SLAB_FREELIST_RANDOM=y
 CONFIG_JUMP_LABEL=y
 CONFIG_STRICT_KERNEL_RWX=y
 CONFIG_GCC_PLUGINS=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_BLK_DEBUG_FS is not set
 # CONFIG_IOSCHED_DEADLINE is not set

arch/arm/configs/aspeed_g5_defconfig

@@ -23,7 +23,6 @@ CONFIG_SLAB_FREELIST_RANDOM=y
 CONFIG_JUMP_LABEL=y
 CONFIG_STRICT_KERNEL_RWX=y
 CONFIG_GCC_PLUGINS=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_BLK_DEBUG_FS is not set
 # CONFIG_IOSCHED_DEADLINE is not set

arch/arm/configs/at91_dt_defconfig

@@ -9,7 +9,6 @@ CONFIG_EMBEDDED=y
 CONFIG_SLAB=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set

arch/arm/configs/clps711x_defconfig

@@ -6,7 +6,6 @@ CONFIG_RD_LZMA=y
 CONFIG_EMBEDDED=y
 CONFIG_SLOB=y
 CONFIG_JUMP_LABEL=y
-# CONFIG_LBDAF is not set
 CONFIG_PARTITION_ADVANCED=y
 # CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARCH_CLPS711X=y

arch/arm/configs/efm32_defconfig

@@ -11,7 +11,6 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_EMBEDDED=y
 # CONFIG_VM_EVENT_COUNTERS is not set
 # CONFIG_SLUB_DEBUG is not set
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set

arch/arm/configs/ezx_defconfig

@@ -13,7 +13,6 @@ CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODULE_FORCE_UNLOAD=y
 CONFIG_MODVERSIONS=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARCH_PXA=y

arch/arm/configs/h3600_defconfig

@@ -4,7 +4,6 @@ CONFIG_HIGH_RES_TIMERS=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_MODULES=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set

arch/arm/configs/imote2_defconfig

@@ -12,7 +12,6 @@ CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODULE_FORCE_UNLOAD=y
 CONFIG_MODVERSIONS=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARCH_PXA=y

arch/arm/configs/moxart_defconfig

@@ -15,7 +15,6 @@ CONFIG_EMBEDDED=y
 # CONFIG_VM_EVENT_COUNTERS is not set
 # CONFIG_SLUB_DEBUG is not set
 # CONFIG_COMPAT_BRK is not set
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 CONFIG_ARCH_MULTI_V4=y

arch/arm/configs/multi_v4t_defconfig

@@ -5,7 +5,6 @@ CONFIG_BLK_DEV_INITRD=y
 CONFIG_EMBEDDED=y
 CONFIG_SLOB=y
 CONFIG_JUMP_LABEL=y
-# CONFIG_LBDAF is not set
 CONFIG_PARTITION_ADVANCED=y
 # CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARCH_MULTI_V4T=y