SUNRPC: Fix a potential race in rpc_execute

[~andy/linux] / fs / open.c

diff --git a/fs/open.c b/fs/open.c
index 68354466879f619b0bf6d626e8130c1675e115b7..8c741002f947908d26788ad83c91f28bc44c8295 100644 (file)
--- a/fs/open.c
+++ b/fs/open.c
@@ -197,10 +197,7 @@ out:
 
 SYSCALL_DEFINE2(ftruncate, unsigned int, fd, unsigned long, length)
 {
-       long ret = do_sys_ftruncate(fd, length, 1);
-       /* avoid REGPARM breakage on x86: */
-       asmlinkage_protect(2, ret, fd, length);
-       return ret;
+       return do_sys_ftruncate(fd, length, 1);
 }
 
 #ifdef CONFIG_COMPAT
@@ -212,32 +209,15 @@ COMPAT_SYSCALL_DEFINE2(ftruncate, unsigned int, fd, compat_ulong_t, length)
 
 /* LFS versions of truncate are only needed on 32 bit machines */
 #if BITS_PER_LONG == 32
-SYSCALL_DEFINE(truncate64)(const char __user * path, loff_t length)
+SYSCALL_DEFINE2(truncate64, const char __user *, path, loff_t, length)
 {
        return do_sys_truncate(path, length);
 }
-#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
-asmlinkage long SyS_truncate64(long path, loff_t length)
-{
-       return SYSC_truncate64((const char __user *) path, length);
-}
-SYSCALL_ALIAS(sys_truncate64, SyS_truncate64);
-#endif
 
-SYSCALL_DEFINE(ftruncate64)(unsigned int fd, loff_t length)
+SYSCALL_DEFINE2(ftruncate64, unsigned int, fd, loff_t, length)
 {
-       long ret = do_sys_ftruncate(fd, length, 0);
-       /* avoid REGPARM breakage on x86: */
-       asmlinkage_protect(2, ret, fd, length);
-       return ret;
-}
-#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
-asmlinkage long SyS_ftruncate64(long fd, loff_t length)
-{
-       return SYSC_ftruncate64((unsigned int) fd, length);
+       return do_sys_ftruncate(fd, length, 0);
 }
-SYSCALL_ALIAS(sys_ftruncate64, SyS_ftruncate64);
-#endif
 #endif /* BITS_PER_LONG == 32 */
 
 
@@ -299,7 +279,7 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
        return ret;
 }
 
-SYSCALL_DEFINE(fallocate)(int fd, int mode, loff_t offset, loff_t len)
+SYSCALL_DEFINE4(fallocate, int, fd, int, mode, loff_t, offset, loff_t, len)
 {
        struct fd f = fdget(fd);
        int error = -EBADF;
@@ -311,14 +291,6 @@ SYSCALL_DEFINE(fallocate)(int fd, int mode, loff_t offset, loff_t len)
        return error;
 }
 
-#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
-asmlinkage long SyS_fallocate(long fd, long mode, loff_t offset, loff_t len)
-{
-       return SYSC_fallocate((int)fd, (int)mode, offset, len);
-}
-SYSCALL_ALIAS(sys_fallocate, SyS_fallocate);
-#endif
-
 /*
  * access() needs to use the real uid/gid, not the effective uid/gid.
  * We do this by temporarily clearing all FS-related capabilities and
@@ -983,29 +955,19 @@ long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode)
 
 SYSCALL_DEFINE3(open, const char __user *, filename, int, flags, umode_t, mode)
 {
-       long ret;
-
        if (force_o_largefile())
                flags |= O_LARGEFILE;
 
-       ret = do_sys_open(AT_FDCWD, filename, flags, mode);
-       /* avoid REGPARM breakage on x86: */
-       asmlinkage_protect(3, ret, filename, flags, mode);
-       return ret;
+       return do_sys_open(AT_FDCWD, filename, flags, mode);
 }
 
 SYSCALL_DEFINE4(openat, int, dfd, const char __user *, filename, int, flags,
                umode_t, mode)
 {
-       long ret;
-
        if (force_o_largefile())
                flags |= O_LARGEFILE;
 
-       ret = do_sys_open(dfd, filename, flags, mode);
-       /* avoid REGPARM breakage on x86: */
-       asmlinkage_protect(4, ret, dfd, filename, flags, mode);
-       return ret;
+       return do_sys_open(dfd, filename, flags, mode);
 }
 
 #ifndef __alpha__