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| author | Deepa Dinamani <deepa.kernel@gmail.com> | 2018-03-14 07:03:27 +0300 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2018-04-19 14:30:21 +0300 |
| commit | d4703ddafd1e05b8ec8f3fc8f4fbb4f88789a5ea (patch) | |
| tree | 7fe586a108001ea3099a6d224c0a3d518bb84e9f /arch/Kconfig | |
| parent | 1c68adf61e5845f3525522fa9c797ed370689c85 (diff) | |
| download | linux-d4703ddafd1e05b8ec8f3fc8f4fbb4f88789a5ea.tar.xz | |
time: Introduce CONFIG_64BIT_TIME in architectures
There are a total of 53 system calls (aside from ioctl) that pass a time_t
or derived data structure as an argument, and in order to extend time_t
to 64-bit, we have to replace them with new system calls and keep providing
backwards compatibility.
To avoid adding completely new and untested code for this purpose, we
introduce a new CONFIG_64BIT_TIME symbol. Every architecture that supports
new 64 bit time_t syscalls enables this config.
After this is done for all architectures, the CONFIG_64BIT_TIME symbol
will be deleted.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/Kconfig')
| -rw-r--r-- | arch/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 8e0d665c8d53..16e6acfe8711 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -870,6 +870,14 @@ config OLD_SIGACTION config COMPAT_OLD_SIGACTION bool +config 64BIT_TIME + def_bool ARCH_HAS_64BIT_TIME + help + This should be selected by all architectures that need to support + new system calls with a 64-bit time_t. This is relevant on all 32-bit + architectures, and 64-bit architectures as part of compat syscall + handling. + config ARCH_NO_COHERENT_DMA_MMAP bool |