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Commit d4703dda authored by Deepa Dinamani's avatar Deepa Dinamani Committed by Arnd Bergmann
Browse files

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: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarDeepa Dinamani <deepa.kernel@gmail.com>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 1c68adf6

arch/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -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