linux_dsm_epyc7002/arch/xtensa
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
..
boot xtensa: don't use l32r opcode directly 2018-12-05 12:53:07 -08:00
configs PCI: consolidate PCI config entry in drivers/pci 2018-11-23 11:45:34 +09:00
include y2038: rename old time and utime syscalls 2019-02-07 00:13:28 +01:00
kernel y2038: add 64-bit time_t syscalls to all 32-bit architectures 2019-02-07 00:13:28 +01:00
lib xtensa: add support for KASAN 2017-12-16 22:37:12 -08:00
mm Xtensa updates for v4.21: 2018-12-29 09:40:40 -08:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
platforms memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
variants xtensa: add test_kc705_be variant 2018-08-20 12:34:45 -07:00
Kconfig 32-bit userspace ABI: introduce ARCH_32BIT_OFF_T config option 2019-02-19 10:10:05 +01:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile xtensa: generate uapi header and syscall table header files 2018-12-02 23:45:41 -08:00