Commit 4faea239 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

y2038: utimes: Rework #ifdef guards for compat syscalls 



After changing over to 64-bit time_t syscalls, many architectures will
want compat_sys_utimensat() but not respective handlers for utime(),
utimes() and futimesat(). This adds a new __ARCH_WANT_SYS_UTIME32 to
complement __ARCH_WANT_SYS_UTIME. For now, all 64-bit architectures that
support CONFIG_COMPAT set it, but future 64-bit architectures will not
(tile would not have needed it either, but got removed).

As older 32-bit architectures get converted to using CONFIG_64BIT_TIME,
they will have to use __ARCH_WANT_SYS_UTIME32 instead of
__ARCH_WANT_SYS_UTIME. Architectures using the generic syscall ABI don't
need either of them as they never had a utime syscall.

Since the compat_utimbuf structure is now required outside of
CONFIG_COMPAT, I'm moving it into compat_time.h.

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
---
changed from last version:
- renamed __ARCH_WANT_COMPAT_SYS_UTIME to __ARCH_WANT_SYS_UTIME32
parent 185cfaf7

arch/arm64/include/asm/unistd.h

+1 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#define __ARCH_WANT_SYS_SIGPENDING

#define __ARCH_WANT_SYS_SIGPROCMASK

#define __ARCH_WANT_COMPAT_SYS_SENDFILE

#define __ARCH_WANT_SYS_UTIME32

#define __ARCH_WANT_SYS_FORK

#define __ARCH_WANT_SYS_VFORK

arch/mips/include/asm/unistd.h

+1 −0
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ 
#define __ARCH_WANT_SYS_IPC

#define __ARCH_WANT_SYS_PAUSE

#define __ARCH_WANT_SYS_UTIME

#define __ARCH_WANT_SYS_UTIME32

#define __ARCH_WANT_SYS_WAITPID

#define __ARCH_WANT_SYS_SOCKETCALL

#define __ARCH_WANT_SYS_GETPGRP

arch/parisc/include/asm/unistd.h

+1 −0
Original line number Diff line number Diff line
@@ -152,6 +152,7 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \ 
#define __ARCH_WANT_COMPAT_SYS_TIME

#define __ARCH_WANT_COMPAT_SYS_SCHED_RR_GET_INTERVAL

#define __ARCH_WANT_SYS_UTIME

#define __ARCH_WANT_SYS_UTIME32

#define __ARCH_WANT_SYS_WAITPID

#define __ARCH_WANT_SYS_SOCKETCALL

#define __ARCH_WANT_SYS_FADVISE64

arch/powerpc/include/asm/unistd.h

+1 −0
Original line number Diff line number Diff line
@@ -47,6 +47,7 @@ 
#endif

#ifdef CONFIG_PPC64

#define __ARCH_WANT_COMPAT_SYS_TIME

#define __ARCH_WANT_SYS_UTIME32

#define __ARCH_WANT_SYS_NEWFSTATAT

#define __ARCH_WANT_COMPAT_SYS_SENDFILE

#endif

arch/s390/include/asm/unistd.h

+1 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ 
#define __ARCH_WANT_SYS_SIGPROCMASK

# ifdef CONFIG_COMPAT

#   define __ARCH_WANT_COMPAT_SYS_TIME

#   define __ARCH_WANT_SYS_UTIME32

# endif

#define __ARCH_WANT_SYS_FORK

#define __ARCH_WANT_SYS_VFORK

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