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authorArnd Bergmann <arnd@arndb.de>2018-04-13 11:50:12 +0200
committerArnd Bergmann <arnd@arndb.de>2018-08-29 15:42:20 +0200
commit82b355d161c9525ab8838cc27d3200bc3bc9082d (patch)
treedb0e1dc34aad8e44b2c4a19dd83652dc33390422 /fs/stat.c
parenty2038: __get_old_timespec32() can be static (diff)
downloadlinux-82b355d161c9525ab8838cc27d3200bc3bc9082d.tar.xz
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y2038: Remove newstat family from default syscall set
We have four generations of stat() syscalls: - the oldstat syscalls that are only used on the older architectures - the newstat family that is used on all 64-bit architectures but lacked support for large files on 32-bit architectures. - the stat64 family that is used mostly on 32-bit architectures to replace newstat - statx() to replace all of the above, adding 64-bit timestamps among other things. We already compile stat64 only on those architectures that need it, but newstat is always built, including on those that don't reference it. This adds a new __ARCH_WANT_NEW_STAT symbol along the lines of __ARCH_WANT_OLD_STAT and __ARCH_WANT_STAT64 to control compilation of newstat. All architectures that need it use an explict define, the others now get a little bit smaller, and future architecture (including 64-bit targets) won't ever see it. Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'fs/stat.c')
-rw-r--r--fs/stat.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/stat.c b/fs/stat.c
index f8e6fb2c3657..adbfcd86c81b 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -280,6 +280,8 @@ SYSCALL_DEFINE2(fstat, unsigned int, fd, struct __old_kernel_stat __user *, stat
#endif /* __ARCH_WANT_OLD_STAT */
+#ifdef __ARCH_WANT_NEW_STAT
+
#if BITS_PER_LONG == 32
# define choose_32_64(a,b) a
#else
@@ -378,6 +380,7 @@ SYSCALL_DEFINE2(newfstat, unsigned int, fd, struct stat __user *, statbuf)
return error;
}
+#endif
static int do_readlinkat(int dfd, const char __user *pathname,
char __user *buf, int bufsiz)