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Date: Fri, 30 May 2014 22:01:29 +0200
From: Arnd Bergmann <arnd@...db.de>
To: linux-kernel@...r.kernel.org
Cc: linux-arch@...r.kernel.org, joseph@...esourcery.com,
john.stultz@...aro.org, hch@...radead.org, tglx@...utronix.de,
geert@...ux-m68k.org, lftan@...era.com, hpa@...or.com,
linux-fsdevel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>
Subject: [RFC 05/32] arch: hook up new stat and utimes syscalls
This adds the newly added system calls for newfstat64, newfstatat64
and utimens64at to x86, arm and all architectures using the generic
syscall ABI.
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
arch/arm/include/asm/unistd.h | 2 +-
arch/arm/include/uapi/asm/stat.h | 25 +++++++++++++++++++++++++
arch/arm/include/uapi/asm/unistd.h | 3 +++
arch/arm/kernel/calls.S | 3 +++
arch/arm64/include/asm/unistd32.h | 5 ++++-
arch/x86/include/uapi/asm/stat.h | 28 ++++++++++++++++++++++++++++
arch/x86/syscalls/syscall_32.tbl | 3 +++
include/uapi/asm-generic/stat.h | 29 +++++++++++++++++++++++++++--
include/uapi/asm-generic/unistd.h | 8 +++++++-
9 files changed, 101 insertions(+), 5 deletions(-)
diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index 4387624..2ed963a 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -15,7 +15,7 @@
#include <uapi/asm/unistd.h>
-#define __NR_syscalls (384)
+#define __NR_syscalls (388)
#define __ARM_NR_cmpxchg (__ARM_NR_BASE+0x00fff0)
#define __ARCH_WANT_STAT64
diff --git a/arch/arm/include/uapi/asm/stat.h b/arch/arm/include/uapi/asm/stat.h
index 42c0c13..ee2ba23 100644
--- a/arch/arm/include/uapi/asm/stat.h
+++ b/arch/arm/include/uapi/asm/stat.h
@@ -48,6 +48,31 @@ struct stat {
unsigned long __unused5;
};
+/* this matches the arm64 'struct stat' to allow a simpler compat ABI */
+#define __ARCH_HAS_NEWSTAT64
+struct newstat64 {
+ unsigned long long st_dev; /* Device. */
+ unsigned long long st_ino; /* File serial number. */
+ unsigned int st_mode; /* File mode. */
+ unsigned int st_nlink; /* Link count. */
+ unsigned int st_uid; /* User ID of the file's owner. */
+ unsigned int st_gid; /* Group ID of the file's group. */
+ unsigned long long st_rdev; /* Device number, if device. */
+ unsigned long long __pad1;
+ long long st_size; /* Size of file, in bytes. */
+ int st_blksize; /* Optimal block size for I/O. */
+ int __pad2;
+ long long st_blocks; /* Number 512-byte blocks allocated. */
+ long long st_atime; /* Time of last access. */
+ unsigned long long st_atime_nsec;
+ long long st_mtime; /* Time of last modification. */
+ unsigned long long st_mtime_nsec;
+ long long st_ctime; /* Time of last status change. */
+ unsigned long long st_ctime_nsec;
+ unsigned int __unused4;
+ unsigned int __unused5;
+};
+
/* This matches struct stat64 in glibc2.1, hence the absolutely
* insane amounts of padding around dev_t's.
* Note: The kernel zero's the padded region because glibc might read them
diff --git a/arch/arm/include/uapi/asm/unistd.h b/arch/arm/include/uapi/asm/unistd.h
index ba94446..371f8d6 100644
--- a/arch/arm/include/uapi/asm/unistd.h
+++ b/arch/arm/include/uapi/asm/unistd.h
@@ -409,6 +409,9 @@
#define __NR_sched_setattr (__NR_SYSCALL_BASE+380)
#define __NR_sched_getattr (__NR_SYSCALL_BASE+381)
#define __NR_renameat2 (__NR_SYSCALL_BASE+382)
+#define __NR_newfstat64 (__NR_SYSCALL_BASE+383)
+#define __NR_newfstatat64 (__NR_SYSCALL_BASE+384)
+#define __NR_utimens64at (__NR_SYSCALL_BASE+385)
/*
* This may need to be greater than __NR_last_syscall+1 in order to
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 8f51bdc..a51a418 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -392,6 +392,9 @@
/* 380 */ CALL(sys_sched_setattr)
CALL(sys_sched_getattr)
CALL(sys_renameat2)
+ CALL(sys_newfstat64)
+ CALL(sys_newfstatat64)
+/* 385 */ CALL(sys_utimens64at)
#ifndef syscalls_counted
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
#define syscalls_counted
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index c8d8fc1..348c009 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -404,8 +404,11 @@ __SYSCALL(379, sys_finit_module)
__SYSCALL(380, sys_sched_setattr)
__SYSCALL(381, sys_sched_getattr)
__SYSCALL(382, sys_renameat2)
+__SYSCALL(383, sys_newfstat)
+__SYSCALL(384, sys_newfstatat)
+__SYSCALL(385, sys_utimensat)
-#define __NR_compat_syscalls 383
+#define __NR_compat_syscalls 386
/*
* Compat syscall numbers used by the AArch64 kernel.
diff --git a/arch/x86/include/uapi/asm/stat.h b/arch/x86/include/uapi/asm/stat.h
index bc03eb5..43f7c4a 100644
--- a/arch/x86/include/uapi/asm/stat.h
+++ b/arch/x86/include/uapi/asm/stat.h
@@ -71,6 +71,34 @@ struct stat64 {
unsigned long long st_ino;
};
+/*
+ * This matches the native 'struct stat' on x86-64 and
+ * provides 64-bit timestamps on __i386__
+ */
+#define __ARCH_HAS_NEWSTAT64
+struct newstat64 {
+ unsigned long long st_dev;
+ unsigned long long st_ino;
+ unsigned long long st_nlink;
+
+ unsigned int st_mode;
+ unsigned int st_uid;
+ unsigned int st_gid;
+ unsigned int __pad0;
+ unsigned long long st_rdev;
+ long long st_size;
+ long long st_blksize;
+ long long st_blocks; /* Number 512-byte blocks allocated. */
+
+ unsigned long long st_atime;
+ unsigned long long st_atime_nsec;
+ unsigned long long st_mtime;
+ unsigned long long st_mtime_nsec;
+ unsigned long long st_ctime;
+ unsigned long long st_ctime_nsec;
+ long long __unused[3];
+};
+
/* We don't need to memset the whole thing just to initialize the padding */
#define INIT_STRUCT_STAT64_PADDING(st) do { \
memset(&st.__pad0, 0, sizeof(st.__pad0)); \
diff --git a/arch/x86/syscalls/syscall_32.tbl b/arch/x86/syscalls/syscall_32.tbl
index d6b8679..91b6a41 100644
--- a/arch/x86/syscalls/syscall_32.tbl
+++ b/arch/x86/syscalls/syscall_32.tbl
@@ -360,3 +360,6 @@
351 i386 sched_setattr sys_sched_setattr
352 i386 sched_getattr sys_sched_getattr
353 i386 renameat2 sys_renameat2
+354 i386 newfstat64 sys_newfstat64 sys_newfstat
+355 i386 newfstatat64 sys_newfstatat64 sys_newfstatat
+356 i386 utimens64at sys_utimens64at sys_utimensat
diff --git a/include/uapi/asm-generic/stat.h b/include/uapi/asm-generic/stat.h
index bd8cad2..904e5dc 100644
--- a/include/uapi/asm-generic/stat.h
+++ b/include/uapi/asm-generic/stat.h
@@ -43,8 +43,33 @@ struct stat {
unsigned int __unused5;
};
-/* This matches struct stat64 in glibc2.1. Only used for 32 bit. */
-#if __BITS_PER_LONG != 64 || defined(__ARCH_WANT_STAT64)
+#if __BITS_PER_LONG != 64
+#define __ARCH_HAVE_NEWSTAT64
+struct newstat64 {
+ unsigned long long st_dev; /* Device. */
+ unsigned long long st_ino; /* File serial number. */
+ unsigned int st_mode; /* File mode. */
+ unsigned int st_nlink; /* Link count. */
+ unsigned int st_uid; /* User ID of the file's owner. */
+ unsigned int st_gid; /* Group ID of the file's group. */
+ unsigned long long st_rdev; /* Device number, if device. */
+ unsigned long long __pad1;
+ long long st_size; /* Size of file, in bytes. */
+ int st_blksize; /* Optimal block size for I/O. */
+ int __pad2;
+ long long st_blocks; /* Number 512-byte blocks allocated. */
+ long long st_atime; /* Time of last access. */
+ unsigned long long st_atime_nsec;
+ long long st_mtime; /* Time of last modification. */
+ unsigned long long st_mtime_nsec;
+ long long st_ctime; /* Time of last status change. */
+ unsigned long long st_ctime_nsec;
+ unsigned int __unused4;
+ unsigned int __unused5;
+};
+#endif
+
+#if __BITS_PER_LONG != 64 || defined(__ARCH_WANT_STAT64)
struct stat64 {
unsigned long long st_dev; /* Device. */
unsigned long long st_ino; /* File serial number. */
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 3336406..ddcbd42 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -699,9 +699,15 @@ __SYSCALL(__NR_sched_setattr, sys_sched_setattr)
__SYSCALL(__NR_sched_getattr, sys_sched_getattr)
#define __NR_renameat2 276
__SYSCALL(__NR_renameat2, sys_renameat2)
+#define __NR_newfstat64 277
+__SC_COMP_3264(__NR_newfstat64, sys_newfstat64, sys_newfstat, sys_newfstat)
+#define __NR_newfstatat64 278
+__SC_COMP_3264(__NR_newfstatat64, sys_newfstatat64, sys_newfstatat, sys_newfstatat)
+#define __NR_utimensat64 279
+__SC_COMP_3264(__NR_utimens64at, sys_utimensat, sys_utimensat)
#undef __NR_syscalls
-#define __NR_syscalls 277
+#define __NR_syscalls 280
/*
* All syscalls below here should go away really,
--
1.8.3.2
--
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