search for: compiletime_assert_rwonce_typ

Displaying 6 results from an estimated 6 matches for "compiletime_assert_rwonce_typ".

[PATCH 02/18] compiler.h: Split {READ, WRITE}_ONCE definitions out into rwonce.h
2020 Jun 30
0
[PATCH 02/18] compiler.h: Split {READ, WRITE}_ONCE definitions out into rwonce.h
...define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x)) + +#define __READ_ONCE_SCALAR(x) \ +({ \ + __unqual_scalar_typeof(x) __x = __READ_ONCE(x); \ + smp_read_barrier_depends(); \ + (typeof(x))__x; \ +}) + +#define READ_ONCE(x) \ +({ \ + compiletime_assert_rwonce_type(x); \ + __READ_ONCE_SCALAR(x); \ +}) + +#define __WRITE_ONCE(x, val) \ +do { \ + *(volatile typeof(x) *)&(x) = (val); \ +} while (0) + +#define WRITE_ONCE(x, val) \ +do { \ + compiletime_assert_rwonce_type(x); \ + __WRITE_ONCE(x, val); \ +} while (0...
[PATCH v3 02/19] compiler.h: Split {READ, WRITE}_ONCE definitions out into rwonce.h
2020 Jul 10
0
[PATCH v3 02/19] compiler.h: Split {READ, WRITE}_ONCE definitions out into rwonce.h
...define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x)) + +#define __READ_ONCE_SCALAR(x) \ +({ \ + __unqual_scalar_typeof(x) __x = __READ_ONCE(x); \ + smp_read_barrier_depends(); \ + (typeof(x))__x; \ +}) + +#define READ_ONCE(x) \ +({ \ + compiletime_assert_rwonce_type(x); \ + __READ_ONCE_SCALAR(x); \ +}) + +#define __WRITE_ONCE(x, val) \ +do { \ + *(volatile typeof(x) *)&(x) = (val); \ +} while (0) + +#define WRITE_ONCE(x, val) \ +do { \ + compiletime_assert_rwonce_type(x); \ + __WRITE_ONCE(x, val); \ +} while (0...
[PATCH v3 02/19] compiler.h: Split {READ, WRITE}_ONCE definitions out into rwonce.h
2020 Jul 13
1
[PATCH v3 02/19] compiler.h: Split {READ, WRITE}_ONCE definitions out into rwonce.h
..._typeof(x) *)&(x)) > + > +#define __READ_ONCE_SCALAR(x) \ > +({ \ > + __unqual_scalar_typeof(x) __x = __READ_ONCE(x); \ > + smp_read_barrier_depends(); \ > + (typeof(x))__x; \ > +}) > + > +#define READ_ONCE(x) \ > +({ \ > + compiletime_assert_rwonce_type(x); \ Does it make sense if we also move the definition of this compile time assertion into rwonce.h too? Regards, Boqun > + __READ_ONCE_SCALAR(x); \ > +}) > + [...]
[PATCH 00/18] Allow architectures to override __READ_ONCE()
2020 Jul 10
24
[PATCH 00/18] Allow architectures to override __READ_ONCE()
Hi all, This is version three of the patches I previously posted here: v1: https://lore.kernel.org/lkml/20191108170120.22331-1-will at kernel.org/ v2: https://lore.kernel.org/r/20200630173734.14057-1-will at kernel.org Changes since v2 include: * Actually add the barrier in READ_ONCE() for Alpha! * Implement Alpha's smp_load_acquire() using __READ_ONCE(), rather than the other
[PATCH 00/18] Allow architectures to override __READ_ONCE()
2020 Jun 30
32
[PATCH 00/18] Allow architectures to override __READ_ONCE()
Hi everyone, This is the long-awaited version two of the patches I previously posted in November last year: https://lore.kernel.org/lkml/20191108170120.22331-1-will at kernel.org/ I ended up parking the series while the READ_ONCE() implementation was being overhauled, but with that merged during the recent merge window and LTO patches being posted again [1], it was time for a refresh. The
[PATCH 00/18] Allow architectures to override __READ_ONCE()
2020 Jun 30
32
[PATCH 00/18] Allow architectures to override __READ_ONCE()
Hi everyone, This is the long-awaited version two of the patches I previously posted in November last year: https://lore.kernel.org/lkml/20191108170120.22331-1-will at kernel.org/ I ended up parking the series while the READ_ONCE() implementation was being overhauled, but with that merged during the recent merge window and LTO patches being posted again [1], it was time for a refresh. The