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Author SHA1 Message Date
Ard Biesheuvel 4d3c5cbfe2 xor/arm64: Use shared NEON intrinsics implementation from 32-bit ARM 
Tweak the arm64 code so that the pure NEON intrinsics implementation of
XOR is shared between arm64 and ARM. While at it, rename the arm64
specific piece xor-eor3.c to reflect that only the version based on the
EOR3 instruction is kept there.

Signed-off-by: Ard Biesheuvel <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Eric Biggers <[email protected]>
 2026-05-28 13:14:21 -07:00
Ard Biesheuvel a967b1f51c xor/arm: Replace vectorized implementation with arm64's intrinsics 
Drop the XOR implementation generated by the vectorizer: this has always
been a bit of a hack, and now that arm64 has an intrinsics version that
works on ARM too, let's use that instead.

So copy the part of the arm64 code that can be shared (so not the EOR3
version). The arm64 code will be updated in a subsequent patch to share
this implementation.

Performance (QEMU mach-virt VM running on Synquacer [Cortex-A53 @ 1 GHz]

Before:

[    3.519687] xor: measuring software checksum speed
[    3.521725]    neon            :  1660 MB/sec
[    3.524733]    32regs          :  1105 MB/sec
[    3.527751]    8regs           :  1098 MB/sec
[    3.529911]    arm4regs        :  1540 MB/sec

After:

[    3.517654] xor: measuring software checksum speed
[    3.519454]    neon            :  1896 MB/sec
[    3.522499]    32regs          :  1090 MB/sec
[    3.525560]    8regs           :  1083 MB/sec
[    3.527700]    arm4regs        :  1556 MB/sec

Signed-off-by: Ard Biesheuvel <[email protected]>
Acked-by: Christoph Hellwig <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Eric Biggers <[email protected]>
 2026-05-28 13:14:19 -07:00
Christoph Hellwig af53e85ef7 xor: add a kunit test case 
Add a test case for the XOR routines loosely based on the CRC kunit
test.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:22 -07:00
Christoph Hellwig a21921dd02 xor: use static_call for xor_gen 
Avoid the indirect call for xor_generation by using a static_call.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:21 -07:00
Christoph Hellwig 80dcf0a783 xor: pass the entire operation to the low-level ops 
Currently the high-level xor code chunks up all operations into small
units for only up to 1 + 4 vectors, and passes it to four different
methods.  This means the FPU/vector context is entered and left a lot for
wide stripes, and a lot of indirect expensive indirect calls are
performed.  Switch to passing the entire gen_xor request to the low-level
ops, and provide a macro to dispatch it to the existing helper.

This reduce the number of indirect calls and FPU/vector context switches
by a factor approaching nr_stripes / 4, and also reduces source and binary
code size.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:21 -07:00
Christoph Hellwig e420f0a88b xor: add a better public API 
xor_blocks is very annoying to use, because it is limited to 4 + 1 sources
/ destinations, has an odd argument order and is completely undocumented.

Lift the code that loops around it from btrfs and async_tx/async_xor into
common code under the name xor_gen and properly document it.

[[email protected]: make xor_blocks less annoying to use]
 Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:20 -07:00
Christoph Hellwig e20043b476 xor: make xor.ko self-contained in lib/raid/ 
Move the asm/xor.h headers to lib/raid/xor/$(SRCARCH)/xor_arch.h and
include/linux/raid/xor_impl.h to lib/raid/xor/xor_impl.h so that the
xor.ko module implementation is self-contained in lib/raid/.

As this remove the asm-generic mechanism a new kconfig symbol is added to
indicate that a architecture-specific implementations exists, and
xor_arch.h should be included.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:20 -07:00
Christoph Hellwig 352ebd066b xor: avoid indirect calls for arm64-optimized ops 
Remove the inner xor_block_templates, and instead have two separate actual
template that call into the neon-enabled compilation unit.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:20 -07:00
Christoph Hellwig 77fd47e57a x86: move the XOR code to lib/raid/ 
Move the optimized XOR code out of line into lib/raid.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:19 -07:00
Christoph Hellwig 95c104cc55 s390: move the XOR code to lib/raid/ 
Move the optimized XOR into lib/raid and include it it in xor.ko instead
of unconditionally building it into the main kernel image.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Acked-by: Heiko Carstens <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:19 -07:00
Christoph Hellwig 7f96362396 sparc: move the XOR code to lib/raid/ 
Move the optimized XOR into lib/raid and include it it in xor.ko instead
of always building it into the main kernel image.

The code should probably be split into separate files for the two
implementations, but for now this just does the trivial move.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:19 -07:00
Christoph Hellwig 5265d55b21 riscv: move the XOR code to lib/raid/ 
Move the optimized XOR into lib/raid and include it it in xor.ko instead
of always building it into the main kernel image.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:19 -07:00
Christoph Hellwig 3f276cece4 powerpc: move the XOR code to lib/raid/ 
Move the optimized XOR into lib/raid and include it it in xor.ko instead
of always building it into the main kernel image.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:18 -07:00
Christoph Hellwig 033bee3e49 loongarch: move the XOR code to lib/raid/ 
Move the optimized XOR into lib/raid and include it it in xor.ko instead
of always building it into the main kernel image.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:18 -07:00
Christoph Hellwig 3786f2ad00 arm64: move the XOR code to lib/raid/ 
Move the optimized XOR into lib/raid and include it it in the main xor.ko
instead of building a separate module for it.

Note that this drops the CONFIG_KERNEL_MODE_NEON dependency, as that is
always set for arm64.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:18 -07:00
Christoph Hellwig 0d64a24ec0 arm: move the XOR code to lib/raid/ 
Move the optimized XOR into lib/raid and include it it in the main xor.ko
instead of building a separate module for it.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:18 -07:00
Christoph Hellwig 503793b134 alpha: move the XOR code to lib/raid/ 
Move the optimized XOR code out of line into lib/raid.

Note that the giant inline assembly block might be better off as a
separate assembly source file now, but I'll leave that to the alpha
maintainers.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Acked-by: Magnus Lindholm <[email protected]>
Tested-by: Magnus Lindholm <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:17 -07:00
Christoph Hellwig c46928fdcf xor: move generic implementations out of asm-generic/xor.h 
Move the generic implementations from asm-generic/xor.h to
per-implementaion .c files in lib/raid.  This will build them
unconditionally even when an architecture forces a specific
implementation, but as we'll need at least one generic version for the
static_call optimization later on we'll pay that price.

Note that this would cause the second xor_block_8regs instance created by
arch/arm/lib/xor-neon.c to be generated instead of discarded as dead code,
so add a NO_TEMPLATE symbol to disable it for this case.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:17 -07:00
Christoph Hellwig 35ebc4de10 xor: remove macro abuse for XOR implementation registrations 
Drop the pretty confusing historic XOR_TRY_TEMPLATES and
XOR_SELECT_TEMPLATE, and instead let the architectures provide a
arch_xor_init that calls either xor_register to register candidates or
xor_force to force a specific implementation.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:17 -07:00
Christoph Hellwig 54e20be48f xor: split xor.h 
Keep xor.h for the public API, and split the struct xor_block_template
definition that is only needed by the xor.ko core and
architecture-specific optimizations into a separate xor_impl.h header.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:17 -07:00
Christoph Hellwig 0471415f3f xor: cleanup registration and probing 
Originally, the XOR code benchmarked all algorithms at load time, but it
has since then been hacked multiple times to allow forcing an algorithm,
and then commit 524ccdbdfb ("crypto: xor - defer load time benchmark to
a later time") changed the logic to a two-step process or registration and
benchmarking, but only when built-in.

Rework this, so that the XOR_TRY_TEMPLATES macro magic now always just
deals with adding the templates to the list, and benchmarking is always
done in a second pass; for modular builds from module_init, and for the
built-in case using a separate init call level.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:16 -07:00
Christoph Hellwig 7c6e6b2b48 xor: small cleanups 
Update the to of file comment to be correct and non-redundant, and drop
the unused BH_TRACE define.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:16 -07:00
Christoph Hellwig 9e229025e2 xor: move to lib/raid/ 
Move the RAID XOR code to lib/raid/ as it has nothing to do with the
crypto API.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Tested-by: Eric Biggers <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andreas Larsson <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "Borislav Petkov (AMD)" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: David Sterba <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jason A. Donenfeld <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Li Nan <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Magnus Lindholm <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Ted Ts'o <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: WANG Xuerui <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
 2026-04-02 23:36:16 -07:00