linux/arch/csky
Yury Norov 942fa985e9 32-bit userspace ABI: introduce ARCH_32BIT_OFF_T config option
All new 32-bit architectures should have 64-bit userspace off_t type, but
existing architectures has 32-bit ones.

To enforce the rule, new config option is added to arch/Kconfig that defaults
ARCH_32BIT_OFF_T to be disabled for new 32-bit architectures. All existing
32-bit architectures enable it explicitly.

New option affects force_o_largefile() behaviour. Namely, if userspace
off_t is 64-bits long, we have no reason to reject user to open big files.

Note that even if architectures has only 64-bit off_t in the kernel
(arc, c6x, h8300, hexagon, nios2, openrisc, and unicore32),
a libc may use 32-bit off_t, and therefore want to limit the file size
to 4GB unless specified differently in the open flags.

Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Yury Norov <ynorov@marvell.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-19 10:10:05 +01:00
..
abiv1 arch/csky patches for 4.21-rc1 2019-01-05 09:50:07 -08:00
abiv2 csky: ftrace call graph supported. 2018-12-31 23:17:23 +08:00
boot csky: use common dtb build rules 2018-11-01 10:52:27 +08:00
configs
include csky: fixup compile error with pte_alloc 2019-01-09 00:18:33 +08:00
kernel csky: fixup compile error with CPU 810. 2019-01-10 04:37:37 -08:00
lib Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
mm arch/csky patches for 4.21-rc1 2019-01-05 09:50:07 -08:00
Kconfig 32-bit userspace ABI: introduce ARCH_32BIT_OFF_T config option 2019-02-19 10:10:05 +01:00
Kconfig.debug csky: remove builtin-dtb Kbuild 2018-11-01 10:52:26 +08:00
Makefile csky: stacktrace supported. 2018-12-31 23:12:22 +08:00