[PATCH] remove duplicated sys_open32() code from 64bit archs

64 bit architectures all implement their own compatibility sys_open(),
when in fact the difference is simply not forcing the O_LARGEFILE
flag.  So use the a common function instead.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Cc: <viro@parcelfarce.linux.theplanet.co.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

7 files changed, 4 insertions, 114 deletions

diff --git a/arch/ia64/ia32/ia32_entry.S b/arch/ia64/ia32/ia32_entry.S
index 829a6d8..0708edb 100644
--- a/arch/ia64/ia32/ia32_entry.S
+++ b/arch/ia64/ia32/ia32_entry.S
@@ -215,7 +215,7 @@ ia32_syscall_table:
 	data8 sys32_fork
 	data8 sys_read
 	data8 sys_write
-	data8 sys32_open	  /* 5 */
+	data8 compat_sys_open	  /* 5 */
 	data8 sys_close
 	data8 sys32_waitpid
 	data8 sys_creat
diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c
index c1e20d6..e29a8a5 100644
--- a/arch/ia64/ia32/sys_ia32.c
+++ b/arch/ia64/ia32/sys_ia32.c
@@ -2359,37 +2359,6 @@ sys32_brk (unsigned int brk)
 	return ret;
 }
 
-/*
- * Exactly like fs/open.c:sys_open(), except that it doesn't set the O_LARGEFILE flag.
- */
-asmlinkage long
-sys32_open (const char __user * filename, int flags, int mode)
-{
-	char * tmp;
-	int fd, error;
-
-	tmp = getname(filename);
-	fd = PTR_ERR(tmp);
-	if (!IS_ERR(tmp)) {
-		fd = get_unused_fd();
-		if (fd >= 0) {
-			struct file *f = filp_open(tmp, flags, mode);
-			error = PTR_ERR(f);
-			if (IS_ERR(f))
-				goto out_error;
-			fd_install(fd, f);
-		}
-out:
-		putname(tmp);
-	}
-	return fd;
-
-out_error:
-	put_unused_fd(fd);
-	fd = error;
-	goto out;
-}
-
 /* Structure for ia32 emulation on ia64 */
 struct epoll_event32
 {
diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S
index 474df0a..2164bd7 100644
--- a/arch/ppc64/kernel/misc.S
+++ b/arch/ppc64/kernel/misc.S
@@ -957,7 +957,7 @@ _GLOBAL(sys_call_table32)
 	.llong .ppc_fork
 	.llong .sys_read
 	.llong .sys_write
-	.llong .sys32_open		/* 5 */
+	.llong .compat_sys_open		/* 5 */
 	.llong .sys_close
 	.llong .sys32_waitpid
 	.llong .sys32_creat
diff --git a/arch/ppc64/kernel/sys_ppc32.c b/arch/ppc64/kernel/sys_ppc32.c
index 2066190..214914a 100644
--- a/arch/ppc64/kernel/sys_ppc32.c
+++ b/arch/ppc64/kernel/sys_ppc32.c
@@ -867,37 +867,6 @@ off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin)
 	return sys_lseek(fd, (int)offset, origin);
 }
 
-/*
- * This is just a version for 32-bit applications which does
- * not force O_LARGEFILE on.
- */
-asmlinkage long sys32_open(const char __user * filename, int flags, int mode)
-{
-	char * tmp;
-	int fd, error;
-
-	tmp = getname(filename);
-	fd = PTR_ERR(tmp);
-	if (!IS_ERR(tmp)) {
-		fd = get_unused_fd();
-		if (fd >= 0) {
-			struct file * f = filp_open(tmp, flags, mode);
-			error = PTR_ERR(f);
-			if (IS_ERR(f))
-				goto out_error;
-			fd_install(fd, f);
-		}
-out:
-		putname(tmp);
-	}
-	return fd;
-
-out_error:
-	put_unused_fd(fd);
-	fd = error;
-	goto out;
-}
-
 /* Note: it is necessary to treat bufsiz as an unsigned int,
  * with the corresponding cast to a signed int to insure that the 
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c
index 1d3aa58..7f6239e 100644
--- a/arch/sparc64/kernel/sys_sparc32.c
+++ b/arch/sparc64/kernel/sys_sparc32.c
@@ -1002,29 +1002,7 @@ asmlinkage long sys32_adjtimex(struct timex32 __user *utp)
 asmlinkage long sparc32_open(const char __user *filename,
 			     int flags, int mode)
 {
-	char * tmp;
-	int fd, error;
-
-	tmp = getname(filename);
-	fd = PTR_ERR(tmp);
-	if (!IS_ERR(tmp)) {
-		fd = get_unused_fd();
-		if (fd >= 0) {
-			struct file * f = filp_open(tmp, flags, mode);
-			error = PTR_ERR(f);
-			if (IS_ERR(f))
-				goto out_error;
-			fd_install(fd, f);
-		}
-out:
-		putname(tmp);
-	}
-	return fd;
-
-out_error:
-	put_unused_fd(fd);
-	fd = error;
-	goto out;
+	return do_sys_open(filename, flags, mode);
 }
 
 extern unsigned long do_mremap(unsigned long addr,
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index c45d6a0..f174083 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -307,7 +307,7 @@ ia32_sys_call_table:
 	.quad stub32_fork
 	.quad sys_read
 	.quad sys_write
-	.quad sys32_open		/* 5 */
+	.quad compat_sys_open		/* 5 */
 	.quad sys_close
 	.quad sys32_waitpid
 	.quad sys_creat
diff --git a/arch/x86_64/ia32/sys_ia32.c b/arch/x86_64/ia32/sys_ia32.c
index be996d1b..04d8040 100644
--- a/arch/x86_64/ia32/sys_ia32.c
+++ b/arch/x86_64/ia32/sys_ia32.c
@@ -969,32 +969,6 @@ long sys32_kill(int pid, int sig)
 	return sys_kill(pid, sig);
 }
  
-asmlinkage long sys32_open(const char __user * filename, int flags, int mode)
-{
-	char * tmp;
-	int fd, error;
-
-	/* don't force O_LARGEFILE */
-	tmp = getname(filename);
-	fd = PTR_ERR(tmp);
-	if (!IS_ERR(tmp)) {
-		fd = get_unused_fd();
-		if (fd >= 0) {
-			struct file *f = filp_open(tmp, flags, mode);
-			error = PTR_ERR(f);
-			if (IS_ERR(f)) {
-				put_unused_fd(fd); 
-				fd = error;
-			} else {
-				fsnotify_open(f->f_dentry);
-				fd_install(fd, f);
-			}
-		}
-		putname(tmp);
-	}
-	return fd;
-}
-
 extern asmlinkage long
 sys_timer_create(clockid_t which_clock,
 		 struct sigevent __user *timer_event_spec,