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![]() This series provides native one-byte and two-byte cmpxchg() support for sparc32 and parisc, courtesy of Al Viro. This support is provided by the same hashed-array-of-locks technique used for the other atomic operations provided for these two platforms. This series also provides emulated one-byte cmpxchg() support for csky using a new cmpxchg_emu_u8() function that uses a four-byte cmpxchg() to emulate the one-byte variant. Similar patches for emulation of one-byte cmpxchg() for arc, sh, and xtensa have not yet received maintainer acks, so they are slated for the v6.11 merge window. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEbK7UrM+RBIrCoViJnr8S83LZ+4wFAmY/gZ8THHBhdWxtY2tA a2VybmVsLm9yZwAKCRCevxLzctn7jFIjD/0Uu4VZZN96jYbSaDbC5aAkEHg/swBK 6OVn+yspLOvkebVZlSfus+7rc5VUrxT3GA/gvAWEQsUlPqpYg6Qja/efFpPPRjIq lwkFE5HFgE0J4lBo9p78ggm6Hx60WUPlNg9uS23qURZbFTx5TYQyAdzXw9HlYzr8 jg5IuTtO5L5AZzR2ocDRh4A5sqfcBJCVdVsKO+XzdFLLtgum+kJY7StYLPdY8VtL pIV3+ZQENoiwzE+wccnCb2R/4kt6jsEDShlpV4VEfv76HwbjBdvSq4jEg4jS2N3/ AIyThclD97AEdbbM1oJ3oZdjD3GLGVPhVFfiMSGD5HGA+JVJPjJe2it4o+xY7CIR sSdI/E3Rs67qgaga6t2vHygDZABOwgNLAsc4VwM7X6I20fRixkYVc7aVOTnAPzmr 15iaFd/T7fLKJcC3m/IXb9iNdlfe0Op4+YVD0lOTWmzIk80Xgf45a39u1VFlqQvh CLIZG3IdmuxXSWjOmk70iokzJgoSmBriGLbAT3K++pzGYUN/BNQs6XRR77BczFsX CbZTZKnEWZMR1U0UWa/TbvUKcsVBZTYebJSvJOG2/+oVqayzvwYfBsE/vWZcI72K XEEpKY9ZPDf/gCs/G4OFWt2QPJ0PL+Nt4UZDr5Khrqgo1PwN0uIXstA4mnJ0WjqQ sGiACjdTXk4h0w== =AEPy -----END PGP SIGNATURE----- Merge tag 'cmpxchg.2024.05.11a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull cmpxchg updates from Paul McKenney: "Provide one-byte and two-byte cmpxchg() support on sparc32, parisc, and csky This provides native one-byte and two-byte cmpxchg() support for sparc32 and parisc, courtesy of Al Viro. This support is provided by the same hashed-array-of-locks technique used for the other atomic operations provided for these two platforms. There is also emulated one-byte cmpxchg() support for csky using a new cmpxchg_emu_u8() function that uses a four-byte cmpxchg() to emulate the one-byte variant. Similar patches for emulation of one-byte cmpxchg() for arc, sh, and xtensa have not yet received maintainer acks, so they are slated for the v6.11 merge window" * tag 'cmpxchg.2024.05.11a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: csky: Emulate one-byte cmpxchg lib: Add one-byte emulation function parisc: add u16 support to cmpxchg() parisc: add missing export of __cmpxchg_u8() parisc: unify implementations of __cmpxchg_u{8,32,64} parisc: __cmpxchg_u32(): lift conversion into the callers sparc32: add __cmpxchg_u{8,16}() and teach __cmpxchg() to handle those sizes sparc32: unify __cmpxchg_u{32,64} sparc32: make the first argument of __cmpxchg_u64() volatile u64 * sparc32: make __cmpxchg_u32() return u32 |
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arm64 | ||
csky | ||
hexagon | ||
loongarch | ||
m68k | ||
microblaze | ||
mips | ||
nios2 | ||
openrisc | ||
parisc | ||
powerpc | ||
riscv | ||
s390 | ||
sh | ||
sparc | ||
um | ||
x86 | ||
xtensa | ||
.gitignore | ||
Kconfig |