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authorChristoph Hellwig <hch@lst.de>2010-03-10 18:21:13 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-12 18:52:32 -0500
commit5d0e52830e9ae09b872567f4aca3dfb5b5918079 (patch)
tree55a199575058da551ccc837ab35a1f4826a8c5b4 /arch/arm/kernel
parent724ee626f38feaea215a11790e1a0cb5d83b0628 (diff)
Add generic sys_old_select()
Add a generic implementation of the old select() syscall, which expects its argument in a memory block and switch all architectures over to use it. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Reviewed-by: H. Peter Anvin <hpa@zytor.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: James Morris <jmorris@namei.org> Acked-by: Andreas Schwab <schwab@linux-m68k.org> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Greg Ungerer <gerg@uclinux.org> Acked-by: David Howells <dhowells@redhat.com> Cc: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/calls.S2
-rw-r--r--arch/arm/kernel/sys_arm.c21
2 files changed, 1 insertions, 22 deletions
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 9314a2d681f1..7671e9a75449 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -91,7 +91,7 @@
91 CALL(sys_settimeofday) 91 CALL(sys_settimeofday)
92/* 80 */ CALL(sys_getgroups16) 92/* 80 */ CALL(sys_getgroups16)
93 CALL(sys_setgroups16) 93 CALL(sys_setgroups16)
94 CALL(OBSOLETE(old_select)) /* used by libc4 */ 94 CALL(OBSOLETE(sys_old_select)) /* used by libc4 */
95 CALL(sys_symlink) 95 CALL(sys_symlink)
96 CALL(sys_ni_syscall) /* was sys_lstat */ 96 CALL(sys_ni_syscall) /* was sys_lstat */
97/* 85 */ CALL(sys_readlink) 97/* 85 */ CALL(sys_readlink)
diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c
index ae4027bd01bd..e59cddedcbba 100644
--- a/arch/arm/kernel/sys_arm.c
+++ b/arch/arm/kernel/sys_arm.c
@@ -54,27 +54,6 @@ out:
54 return error; 54 return error;
55} 55}
56 56
57/*
58 * Perform the select(nd, in, out, ex, tv) and mmap() system
59 * calls.
60 */
61
62struct sel_arg_struct {
63 unsigned long n;
64 fd_set __user *inp, *outp, *exp;
65 struct timeval __user *tvp;
66};
67
68asmlinkage int old_select(struct sel_arg_struct __user *arg)
69{
70 struct sel_arg_struct a;
71
72 if (copy_from_user(&a, arg, sizeof(a)))
73 return -EFAULT;
74 /* sys_select() does the appropriate kernel locking */
75 return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp);
76}
77
78#if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT) 57#if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT)
79/* 58/*
80 * sys_ipc() is the de-multiplexer for the SysV IPC calls.. 59 * sys_ipc() is the de-multiplexer for the SysV IPC calls..