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Diffstat (limited to 'fs/read_write.c')
-rw-r--r--fs/read_write.c43
1 files changed, 21 insertions, 22 deletions
diff --git a/fs/read_write.c b/fs/read_write.c
index 19d4d88fa285..94cb71058098 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -951,51 +951,50 @@ out:
return ret;
}
-static ssize_t do_readv_writev(int type, struct file *file,
- const struct iovec __user *uvector,
- unsigned long nr_segs, loff_t *pos,
- int flags)
+ssize_t vfs_readv(struct file *file, const struct iovec __user *vec,
+ unsigned long vlen, loff_t *pos, int flags)
{
struct iovec iovstack[UIO_FASTIOV];
struct iovec *iov = iovstack;
struct iov_iter iter;
ssize_t ret;
- ret = import_iovec(type, uvector, nr_segs,
- ARRAY_SIZE(iovstack), &iov, &iter);
- if (ret < 0)
- return ret;
-
- ret = __do_readv_writev(type, file, &iter, pos, flags);
- kfree(iov);
-
- return ret;
-}
-
-ssize_t vfs_readv(struct file *file, const struct iovec __user *vec,
- unsigned long vlen, loff_t *pos, int flags)
-{
if (!(file->f_mode & FMODE_READ))
return -EBADF;
if (!(file->f_mode & FMODE_CAN_READ))
return -EINVAL;
- return do_readv_writev(READ, file, vec, vlen, pos, flags);
-}
+ ret = import_iovec(READ, vec, vlen, ARRAY_SIZE(iovstack), &iov, &iter);
+ if (ret < 0)
+ return ret;
+ ret = __do_readv_writev(READ, file, &iter, pos, flags);
+ kfree(iov);
+ return ret;
+}
EXPORT_SYMBOL(vfs_readv);
ssize_t vfs_writev(struct file *file, const struct iovec __user *vec,
unsigned long vlen, loff_t *pos, int flags)
{
+ struct iovec iovstack[UIO_FASTIOV];
+ struct iovec *iov = iovstack;
+ struct iov_iter iter;
+ ssize_t ret;
+
if (!(file->f_mode & FMODE_WRITE))
return -EBADF;
if (!(file->f_mode & FMODE_CAN_WRITE))
return -EINVAL;
- return do_readv_writev(WRITE, file, vec, vlen, pos, flags);
-}
+ ret = import_iovec(WRITE, vec, vlen, ARRAY_SIZE(iovstack), &iov, &iter);
+ if (ret < 0)
+ return ret;
+ ret = __do_readv_writev(WRITE, file, &iter, pos, flags);
+ kfree(iov);
+ return ret;
+}
EXPORT_SYMBOL(vfs_writev);
static ssize_t do_readv(unsigned long fd, const struct iovec __user *vec,