1 files changed, 26 insertions, 46 deletions

diff --git a/fs/compat.c b/fs/compat.c
index ce982f6e8c8..4d3fbcb2ddb 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -44,7 +44,7 @@
 #include <linux/nfsd/syscall.h>
 #include <linux/personality.h>
 #include <linux/rwsem.h>
-#include <linux/acct.h>
+#include <linux/tsacct_kern.h>
 #include <linux/mm.h>
 
 #include <net/sock.h>		/* siocdevprivate_ioctl */
@@ -52,8 +52,7 @@
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
 #include <asm/ioctls.h>
-
-extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
+#include "internal.h"
 
 int compat_log = 1;
 
@@ -69,6 +68,8 @@ int compat_printk(const char *fmt, ...)
 	return ret;
 }
 
+#include "read_write.h"
+
 /*
  * Not all architectures have sys_utime, so implement this in terms
  * of sys_utimes.
@@ -313,9 +314,6 @@ out:
 #define IOCTL_HASHSIZE 256
 static struct ioctl_trans *ioctl32_hash_table[IOCTL_HASHSIZE];
 
-extern struct ioctl_trans ioctl_start[];
-extern int ioctl_table_size;
-
 static inline unsigned long ioctl32_hash(unsigned long cmd)
 {
 	return (((cmd >> 6) ^ (cmd >> 4) ^ cmd)) % IOCTL_HASHSIZE;
@@ -838,8 +836,6 @@ static int do_nfs4_super_data_conv(void *raw_data)
 	return 0;
 }
 
-extern int copy_mount_options (const void __user *, unsigned long *);
-
 #define SMBFS_NAME      "smbfs"
 #define NCPFS_NAME      "ncpfs"
 #define NFS4_NAME	"nfs4"
@@ -918,20 +914,24 @@ struct compat_readdir_callback {
 };
 
 static int compat_fillonedir(void *__buf, const char *name, int namlen,
-			loff_t offset, ino_t ino, unsigned int d_type)
+			loff_t offset, u64 ino, unsigned int d_type)
 {
 	struct compat_readdir_callback *buf = __buf;
 	struct compat_old_linux_dirent __user *dirent;
+	compat_ulong_t d_ino;
 
 	if (buf->result)
 		return -EINVAL;
+	d_ino = ino;
+	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+		return -EOVERFLOW;
 	buf->result++;
 	dirent = buf->dirent;
 	if (!access_ok(VERIFY_WRITE, dirent,
 			(unsigned long)(dirent->d_name + namlen + 1) -
 				(unsigned long)dirent))
 		goto efault;
-	if (	__put_user(ino, &dirent->d_ino) ||
+	if (	__put_user(d_ino, &dirent->d_ino) ||
 		__put_user(offset, &dirent->d_offset) ||
 		__put_user(namlen, &dirent->d_namlen) ||
 		__copy_to_user(dirent->d_name, name, namlen) ||
@@ -982,22 +982,26 @@ struct compat_getdents_callback {
 };
 
 static int compat_filldir(void *__buf, const char *name, int namlen,
-		loff_t offset, ino_t ino, unsigned int d_type)
+		loff_t offset, u64 ino, unsigned int d_type)
 {
 	struct compat_linux_dirent __user * dirent;
 	struct compat_getdents_callback *buf = __buf;
+	compat_ulong_t d_ino;
 	int reclen = COMPAT_ROUND_UP(NAME_OFFSET(dirent) + namlen + 2);
 
 	buf->error = -EINVAL;	/* only used if we fail.. */
 	if (reclen > buf->count)
 		return -EINVAL;
+	d_ino = ino;
+	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+		return -EOVERFLOW;
 	dirent = buf->previous;
 	if (dirent) {
 		if (__put_user(offset, &dirent->d_off))
 			goto efault;
 	}
 	dirent = buf->current_dir;
-	if (__put_user(ino, &dirent->d_ino))
+	if (__put_user(d_ino, &dirent->d_ino))
 		goto efault;
 	if (__put_user(reclen, &dirent->d_reclen))
 		goto efault;
@@ -1068,7 +1072,7 @@ struct compat_getdents_callback64 {
 };
 
 static int compat_filldir64(void * __buf, const char * name, int namlen, loff_t offset,
-		     ino_t ino, unsigned int d_type)
+		     u64 ino, unsigned int d_type)
 {
 	struct linux_dirent64 __user *dirent;
 	struct compat_getdents_callback64 *buf = __buf;
@@ -1153,9 +1157,6 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
 			       const struct compat_iovec __user *uvector,
 			       unsigned long nr_segs, loff_t *pos)
 {
-	typedef ssize_t (*io_fn_t)(struct file *, char __user *, size_t, loff_t *);
-	typedef ssize_t (*iov_fn_t)(struct file *, const struct iovec *, unsigned long, loff_t *);
-
 	compat_ssize_t tot_len;
 	struct iovec iovstack[UIO_FASTIOV];
 	struct iovec *iov=iovstack, *vector;
@@ -1238,39 +1239,18 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
 	fnv = NULL;
 	if (type == READ) {
 		fn = file->f_op->read;
-		fnv = file->f_op->readv;
+		fnv = file->f_op->aio_read;
 	} else {
 		fn = (io_fn_t)file->f_op->write;
-		fnv = file->f_op->writev;
-	}
-	if (fnv) {
-		ret = fnv(file, iov, nr_segs, pos);
-		goto out;
+		fnv = file->f_op->aio_write;
 	}
 
-	/* Do it by hand, with file-ops */
-	ret = 0;
-	vector = iov;
-	while (nr_segs > 0) {
-		void __user * base;
-		size_t len;
-		ssize_t nr;
-
-		base = vector->iov_base;
-		len = vector->iov_len;
-		vector++;
-		nr_segs--;
-
-		nr = fn(file, base, len, pos);
+	if (fnv)
+		ret = do_sync_readv_writev(file, iov, nr_segs, tot_len,
+						pos, fnv);
+	else
+		ret = do_loop_readv_writev(file, iov, nr_segs, pos, fn);
 
-		if (nr < 0) {
-			if (!ret) ret = nr;
-			break;
-		}
-		ret += nr;
-		if (nr != len)
-			break;
-	}
 out:
 	if (iov != iovstack)
 		kfree(iov);
@@ -1298,7 +1278,7 @@ compat_sys_readv(unsigned long fd, const struct compat_iovec __user *vec, unsign
 		goto out;
 
 	ret = -EINVAL;
-	if (!file->f_op || (!file->f_op->readv && !file->f_op->read))
+	if (!file->f_op || (!file->f_op->aio_read && !file->f_op->read))
 		goto out;
 
 	ret = compat_do_readv_writev(READ, file, vec, vlen, &file->f_pos);
@@ -1321,7 +1301,7 @@ compat_sys_writev(unsigned long fd, const struct compat_iovec __user *vec, unsig
 		goto out;
 
 	ret = -EINVAL;
-	if (!file->f_op || (!file->f_op->writev && !file->f_op->write))
+	if (!file->f_op || (!file->f_op->aio_write && !file->f_op->write))
 		goto out;
 
 	ret = compat_do_readv_writev(WRITE, file, vec, vlen, &file->f_pos);