commit 3309dd04cbcd2cdad168485af5cf3576b5051e49
author Al Viro <viro@zeniv.linux.org.uk> Thu Apr 09 12:55:47 2015 -0400
committer Al Viro <viro@zeniv.linux.org.uk> Sat Apr 11 22:30:21 2015 -0400
tree 3e01f865306dee01b31f34c9e7e819a5f42a4087
parent 90320251db0fe3d05f2b10686ec936c7d6ecd99a

switch generic_write_checks() to iocb and iter

... returning -E... upon error and amount of data left in iter after
(possible) truncation upon success.  Note, that normal case gives
a non-zero (positive) return value, so any tests for != 0 _must_ be
updated.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Conflicts:
	fs/ext4/file.c

include/linux/fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index c7b21db..b4aa400 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2566,7 +2566,7 @@
 
 extern int generic_file_mmap(struct file *, struct vm_area_struct *);
 extern int generic_file_readonly_mmap(struct file *, struct vm_area_struct *);
-int generic_write_checks(struct file *file, loff_t *pos, size_t *count);
+extern ssize_t generic_write_checks(struct kiocb *, struct iov_iter *);
 extern ssize_t generic_file_read_iter(struct kiocb *, struct iov_iter *);
 extern ssize_t __generic_file_write_iter(struct kiocb *, struct iov_iter *);
 extern ssize_t generic_file_write_iter(struct kiocb *, struct iov_iter *);