ocfs2: switch to ->read_iter()

tracepoints are evil, exhibit #6969...

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

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 06b6a16..bfaaba5 100644 (file)
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2529,7 +2529,7 @@ static ssize_t ocfs2_file_splice_read(struct file *in,
                        in->f_path.dentry->d_name.name, len);
 
        /*
-        * See the comment in ocfs2_file_aio_read()
+        * See the comment in ocfs2_file_read_iter()
         */
        ret = ocfs2_inode_lock_atime(inode, in->f_path.mnt, &lock_level);
        if (ret < 0) {
@@ -2544,10 +2544,8 @@ bail:
        return ret;
 }
 
-static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
-                                  const struct iovec *iov,
-                                  unsigned long nr_segs,
-                                  loff_t pos)
+static ssize_t ocfs2_file_read_iter(struct kiocb *iocb,
+                                  struct iov_iter *to)
 {
        int ret = 0, rw_level = -1, have_alloc_sem = 0, lock_level = 0;
        struct file *filp = iocb->ki_filp;
@@ -2556,7 +2554,8 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
        trace_ocfs2_file_aio_read(inode, filp, filp->f_path.dentry,
                        (unsigned long long)OCFS2_I(inode)->ip_blkno,
                        filp->f_path.dentry->d_name.len,
-                       filp->f_path.dentry->d_name.name, nr_segs);
+                       filp->f_path.dentry->d_name.name,
+                       to->nr_segs);   /* GRRRRR */
 
 
        if (!inode) {
@@ -2601,7 +2600,7 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
        }
        ocfs2_inode_unlock(inode, lock_level);
 
-       ret = generic_file_aio_read(iocb, iov, nr_segs, iocb->ki_pos);
+       ret = generic_file_read_iter(iocb, to);
        trace_generic_file_aio_read_ret(ret);
 
        /* buffered aio wouldn't have proper lock coverage today */
@@ -2700,13 +2699,13 @@ const struct inode_operations ocfs2_special_file_iops = {
  */
 const struct file_operations ocfs2_fops = {
        .llseek         = ocfs2_file_llseek,
-       .read           = do_sync_read,
+       .read           = new_sync_read,
        .write          = do_sync_write,
        .mmap           = ocfs2_mmap,
        .fsync          = ocfs2_sync_file,
        .release        = ocfs2_file_release,
        .open           = ocfs2_file_open,
-       .aio_read       = ocfs2_file_aio_read,
+       .read_iter      = ocfs2_file_read_iter,
        .aio_write      = ocfs2_file_aio_write,
        .unlocked_ioctl = ocfs2_ioctl,
 #ifdef CONFIG_COMPAT
@@ -2748,13 +2747,13 @@ const struct file_operations ocfs2_dops = {
  */
 const struct file_operations ocfs2_fops_no_plocks = {
        .llseek         = ocfs2_file_llseek,
-       .read           = do_sync_read,
+       .read           = new_sync_read,
        .write          = do_sync_write,
        .mmap           = ocfs2_mmap,
        .fsync          = ocfs2_sync_file,
        .release        = ocfs2_file_release,
        .open           = ocfs2_file_open,
-       .aio_read       = ocfs2_file_aio_read,
+       .read_iter      = ocfs2_file_read_iter,
        .aio_write      = ocfs2_file_aio_write,
        .unlocked_ioctl = ocfs2_ioctl,
 #ifdef CONFIG_COMPAT