kill generic_segment_checks()
all callers of ->aio_read() and ->aio_write() have iov/nr_segs already
checked - generic_segment_checks() done after that is just an odd way
to spell iov_length().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 1dafe07..a0a94a3 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1726,12 +1726,7 @@
mutex_lock(&inode->i_mutex);
- err = generic_segment_checks(iov, &nr_segs, &ocount, VERIFY_READ);
- if (err) {
- mutex_unlock(&inode->i_mutex);
- goto out;
- }
- count = ocount;
+ count = ocount = iov_length(iov, nr_segs);
current->backing_dev_info = inode->i_mapping->backing_dev_info;
err = generic_write_checks(file, &pos, &count, S_ISBLK(inode->i_mode));