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y2038: rename old time and utime syscalls

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The time, stime, utime, utimes, and futimesat system calls are only
used on older architectures, and we do not provide y2038 safe variants
of them, as they are replaced by clock_gettime64, clock_settime64,
and utimensat_time64.

However, for consistency it seems better to have the 32-bit architectures
that still use them call the "time32" entry points (leaving the
traditional handlers for the 64-bit architectures), like we do for system
calls that now require two versions.

Note: We used to always define __ARCH_WANT_SYS_TIME and
__ARCH_WANT_SYS_UTIME and only set __ARCH_WANT_COMPAT_SYS_TIME and
__ARCH_WANT_SYS_UTIME32 for compat mode on 64-bit kernels. Now this is
reversed: only 64-bit architectures set __ARCH_WANT_SYS_TIME/UTIME, while
we need __ARCH_WANT_SYS_TIME32/UTIME32 for 32-bit architectures and compat
mode. The resulting asm/unistd.h changes look a bit counterintuitive.

This is only a cleanup patch and it should not change any behavior.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Arnd Bergmann
2019-01-06 23:45:29 +01:00
parent c70a772fda
commit d33c577ccc
22 changed files with 98 additions and 77 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
arch/sh/kernel/syscalls/syscall.tbl
View File

@@ -20,7 +20,7 @@
10 common unlink sys_unlink
11 common execve sys_execve
12 common chdir sys_chdir
13 common time sys_time
13 common time sys_time32
14 common mknod sys_mknod
15 common chmod sys_chmod
16 common lchown sys_lchown16
@@ -32,12 +32,12 @@
22 common umount sys_oldumount
23 common setuid sys_setuid16
24 common getuid sys_getuid16
25 common stime sys_stime
25 common stime sys_stime32
26 common ptrace sys_ptrace
27 common alarm sys_alarm
28 common oldfstat sys_fstat
29 common pause sys_pause
30 common utime sys_utime
30 common utime sys_utime32
# 31 was stty
# 32 was gtty
33 common access sys_access
@@ -278,7 +278,7 @@
268 common statfs64 sys_statfs64
269 common fstatfs64 sys_fstatfs64
270 common tgkill sys_tgkill
271 common utimes sys_utimes
271 common utimes sys_utimes_time32
272 common fadvise64_64 sys_fadvise64_64_wrapper
# 273 is reserved for vserver
274 common mbind sys_mbind
@@ -306,7 +306,7 @@
296 common mkdirat sys_mkdirat
297 common mknodat sys_mknodat
298 common fchownat sys_fchownat
299 common futimesat sys_futimesat
299 common futimesat sys_futimesat_time32
300 common fstatat64 sys_fstatat64
301 common unlinkat sys_unlinkat
302 common renameat sys_renameat