X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=fs%2Fread_write.c;h=328ce8cf9a85eef7057ffe0a35902a15c8af8486;hb=416a2f4f91525fcdec821320bc4608cf012d418e;hp=1a261dcf1778a0862a34600ec3ad3d83c69cfcbc;hpb=edd1533d3ccd82dd5d600986d27d524e6be4c5fd;p=linux-2.6-microblaze.git

diff --git a/fs/read_write.c b/fs/read_write.c
index 1a261dcf1778..328ce8cf9a85 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -496,14 +496,9 @@ static ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t
 }
 
 /* caller is responsible for file_start_write/file_end_write */
-ssize_t __kernel_write(struct file *file, const void *buf, size_t count, loff_t *pos)
+ssize_t __kernel_write_iter(struct file *file, struct iov_iter *from, loff_t *pos)
 {
-	struct kvec iov = {
-		.iov_base	= (void *)buf,
-		.iov_len	= min_t(size_t, count, MAX_RW_COUNT),
-	};
 	struct kiocb kiocb;
-	struct iov_iter iter;
 	ssize_t ret;
 
 	if (WARN_ON_ONCE(!(file->f_mode & FMODE_WRITE)))
@@ -519,8 +514,7 @@ ssize_t __kernel_write(struct file *file, const void *buf, size_t count, loff_t
 
 	init_sync_kiocb(&kiocb, file);
 	kiocb.ki_pos = pos ? *pos : 0;
-	iov_iter_kvec(&iter, WRITE, &iov, 1, iov.iov_len);
-	ret = file->f_op->write_iter(&kiocb, &iter);
+	ret = file->f_op->write_iter(&kiocb, from);
 	if (ret > 0) {
 		if (pos)
 			*pos = kiocb.ki_pos;
@@ -530,6 +524,18 @@ ssize_t __kernel_write(struct file *file, const void *buf, size_t count, loff_t
 	inc_syscw(current);
 	return ret;
 }
+
+/* caller is responsible for file_start_write/file_end_write */
+ssize_t __kernel_write(struct file *file, const void *buf, size_t count, loff_t *pos)
+{
+	struct kvec iov = {
+		.iov_base	= (void *)buf,
+		.iov_len	= min_t(size_t, count, MAX_RW_COUNT),
+	};
+	struct iov_iter iter;
+	iov_iter_kvec(&iter, WRITE, &iov, 1, iov.iov_len);
+	return __kernel_write_iter(file, &iter, pos);
+}
 /*
  * This "EXPORT_SYMBOL_GPL()" is more of a "EXPORT_SYMBOL_DONTUSE()",
  * but autofs is one of the few internal kernel users that actually