leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fs: stat: compat: Add __ARCH_WANT_COMPAT_STAT

Browse Source 
RISC-V doesn't neeed compat_stat, so using __ARCH_WANT_COMPAT_STAT
to exclude unnecessary SYSCALL functions.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Helge Deller <deller@gmx.de>  # parisc
Link: https://lore.kernel.org/r/20220405071314.3225832-6-guoren@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Guo Ren 2022-04-05 15:12:59 +08:00 committed by Palmer Dabbelt
parent 0cbed0ee1d
commit f18ed30db2
No known key found for this signature in database
GPG Key ID: 2E1319F35FBB1889
8 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm64/include/asm/unistd.h
View File

@ -3,6 +3,7 @@
* Copyright (C) 2012 ARM Ltd.
*/
#ifdef CONFIG_COMPAT
#define __ARCH_WANT_COMPAT_STAT
#define __ARCH_WANT_COMPAT_STAT64
#define __ARCH_WANT_SYS_GETHOSTNAME
#define __ARCH_WANT_SYS_PAUSE

2
arch/mips/include/asm/unistd.h
View File

@ -50,6 +50,8 @@
# ifdef CONFIG_32BIT
# define __ARCH_WANT_STAT64
# define __ARCH_WANT_SYS_TIME32
# else
# define __ARCH_WANT_COMPAT_STAT
# endif
# ifdef CONFIG_MIPS32_O32
# define __ARCH_WANT_SYS_TIME32

1
arch/parisc/include/asm/unistd.h
View File

@ -164,6 +164,7 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
#define __ARCH_WANT_SYS_CLONE
#define __ARCH_WANT_SYS_CLONE3
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
#define __ARCH_WANT_COMPAT_STAT
#ifdef CONFIG_64BIT
#define __ARCH_WANT_SYS_TIME

1
arch/powerpc/include/asm/unistd.h
View File

@ -44,6 +44,7 @@
#define __ARCH_WANT_SYS_TIME
#define __ARCH_WANT_SYS_UTIME
#define __ARCH_WANT_SYS_NEWFSTATAT
#define __ARCH_WANT_COMPAT_STAT
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
#endif
#define __ARCH_WANT_SYS_FORK

1
arch/s390/include/asm/unistd.h
View File

@ -28,6 +28,7 @@
#define __ARCH_WANT_SYS_SIGPENDING
#define __ARCH_WANT_SYS_SIGPROCMASK
# ifdef CONFIG_COMPAT
# define __ARCH_WANT_COMPAT_STAT
# define __ARCH_WANT_SYS_TIME32
# define __ARCH_WANT_SYS_UTIME32
# endif

1
arch/sparc/include/asm/unistd.h
View File

@ -46,6 +46,7 @@
#define __ARCH_WANT_SYS_TIME
#define __ARCH_WANT_SYS_UTIME
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
#define __ARCH_WANT_COMPAT_STAT
#endif
#ifdef __32bit_syscall_numbers__

1
arch/x86/include/asm/unistd.h
View File

@ -22,6 +22,7 @@
# include <asm/unistd_32_ia32.h>
# define __ARCH_WANT_SYS_TIME
# define __ARCH_WANT_SYS_UTIME
# define __ARCH_WANT_COMPAT_STAT
# define __ARCH_WANT_COMPAT_SYS_PREADV64
# define __ARCH_WANT_COMPAT_SYS_PWRITEV64
# define __ARCH_WANT_COMPAT_SYS_PREADV64V2

2
fs/stat.c
View File

@ -660,7 +660,7 @@ SYSCALL_DEFINE5(statx,
return ret;
}
#ifdef CONFIG_COMPAT
#if defined(CONFIG_COMPAT) && defined(__ARCH_WANT_COMPAT_STAT)
static int cp_compat_stat(struct kstat *stat, struct compat_stat __user *ubuf)
{
struct compat_stat tmp;