The threaded aio helper code needs to be able to call
do_loop_readv_writev() to perform i/o to file_operations that do not have
read_iter or write_iter methods. Make the prototype for
do_loop_readv_writev() non-static and move it into fs/internal.h
Signed-off-by: Benjamin LaHaise <ben.lahaise@xxxxxxxxxxxxxxxxx>
Signed-off-by: Benjamin LaHaise <bcrl@xxxxxxxxx>
---
fs/internal.h | 6 ++++++
fs/read_write.c | 5 +----
2 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/fs/internal.h b/fs/internal.h
index 71859c4d..57b6010 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -16,6 +16,9 @@ struct path;
struct mount;
struct shrink_control;
+typedef ssize_t (*io_fn_t)(struct file *, char __user *, size_t, loff_t *);
+typedef ssize_t (*iter_fn_t)(struct kiocb *, struct iov_iter *);
+
/*
* block_dev.c
*/
@@ -135,6 +138,9 @@ extern long prune_dcache_sb(struct super_block *sb, struct shrink_control *sc);
* read_write.c
*/
extern int rw_verify_area(int, struct file *, const loff_t *, size_t);
+extern ssize_t do_loop_readv_writev(struct file *filp, struct iov_iter *iter,
+ loff_t *ppos, io_fn_t fn);
+
/*
* pipe.c
diff --git a/fs/read_write.c b/fs/read_write.c
index 819ef3f..36344ff 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -21,9 +21,6 @@
#include <asm/uaccess.h>
#include <asm/unistd.h>
-typedef ssize_t (*io_fn_t)(struct file *, char __user *, size_t, loff_t *);
-typedef ssize_t (*iter_fn_t)(struct kiocb *, struct iov_iter *);
-
const struct file_operations generic_ro_fops = {
.llseek = generic_file_llseek,
.read_iter = generic_file_read_iter,
@@ -668,7 +665,7 @@ static ssize_t do_iter_readv_writev(struct file *filp, struct iov_iter *iter,
}
/* Do it by hand, with file-ops */
-static ssize_t do_loop_readv_writev(struct file *filp, struct iov_iter *iter,
+ssize_t do_loop_readv_writev(struct file *filp, struct iov_iter *iter,
loff_t *ppos, io_fn_t fn)
{
ssize_t ret = 0;
--
2.5.0
--
"Thought is the essence of where you are now."
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