ocfs2: switch to ->write_iter()

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

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index bfaaba5373b9ad586798ac5050983a41fb0f1c9f..64909ac2be4306f3743fafe875758f5b59768357 100644 (file)
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2233,15 +2233,13 @@ out:
        return ret;
 }
 
-static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
-                                   const struct iovec *iov,
-                                   unsigned long nr_segs,
-                                   loff_t pos)
+static ssize_t ocfs2_file_write_iter(struct kiocb *iocb,
+                                   struct iov_iter *from)
 {
        int ret, direct_io, appending, rw_level, have_alloc_sem  = 0;
        int can_do_direct, has_refcount = 0;
        ssize_t written = 0;
-       size_t count;           /* after file limit checks */
+       size_t count = iov_iter_count(from);
        loff_t old_size, *ppos = &iocb->ki_pos;
        u32 old_clusters;
        struct file *file = iocb->ki_filp;
@@ -2250,16 +2248,12 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
        int full_coherency = !(osb->s_mount_opt &
                               OCFS2_MOUNT_COHERENCY_BUFFERED);
        int unaligned_dio = 0;
-       struct iov_iter from;
-
-       count = iov_length(iov, nr_segs);
-       iov_iter_init(&from, WRITE, iov, nr_segs, count);
 
        trace_ocfs2_file_aio_write(inode, file, file->f_path.dentry,
                (unsigned long long)OCFS2_I(inode)->ip_blkno,
                file->f_path.dentry->d_name.len,
                file->f_path.dentry->d_name.name,
-               (unsigned int)nr_segs);
+               (unsigned int)from->nr_segs);   /* GRRRRR */
 
        if (iocb->ki_nbytes == 0)
                return 0;
@@ -2362,16 +2356,16 @@ relock:
        if (ret)
                goto out_dio;
 
-       iov_iter_truncate(&from, count);
+       iov_iter_truncate(from, count);
        if (direct_io) {
-               written = generic_file_direct_write(iocb, &from, *ppos);
+               written = generic_file_direct_write(iocb, from, *ppos);
                if (written < 0) {
                        ret = written;
                        goto out_dio;
                }
        } else {
                current->backing_dev_info = file->f_mapping->backing_dev_info;
-               written = generic_perform_write(file, &from, *ppos);
+               written = generic_perform_write(file, from, *ppos);
                if (likely(written >= 0))
                        iocb->ki_pos = *ppos + written;
                current->backing_dev_info = NULL;
@@ -2606,7 +2600,7 @@ static ssize_t ocfs2_file_read_iter(struct kiocb *iocb,
        /* buffered aio wouldn't have proper lock coverage today */
        BUG_ON(ret == -EIOCBQUEUED && !(filp->f_flags & O_DIRECT));
 
-       /* see ocfs2_file_aio_write */
+       /* see ocfs2_file_write_iter */
        if (ret == -EIOCBQUEUED || !ocfs2_iocb_is_rw_locked(iocb)) {
                rw_level = -1;
                have_alloc_sem = 0;
@@ -2700,13 +2694,13 @@ const struct inode_operations ocfs2_special_file_iops = {
 const struct file_operations ocfs2_fops = {
        .llseek         = ocfs2_file_llseek,
        .read           = new_sync_read,
-       .write          = do_sync_write,
+       .write          = new_sync_write,
        .mmap           = ocfs2_mmap,
        .fsync          = ocfs2_sync_file,
        .release        = ocfs2_file_release,
        .open           = ocfs2_file_open,
        .read_iter      = ocfs2_file_read_iter,
-       .aio_write      = ocfs2_file_aio_write,
+       .write_iter     = ocfs2_file_write_iter,
        .unlocked_ioctl = ocfs2_ioctl,
 #ifdef CONFIG_COMPAT
        .compat_ioctl   = ocfs2_compat_ioctl,
@@ -2748,13 +2742,13 @@ const struct file_operations ocfs2_dops = {
 const struct file_operations ocfs2_fops_no_plocks = {
        .llseek         = ocfs2_file_llseek,
        .read           = new_sync_read,
-       .write          = do_sync_write,
+       .write          = new_sync_write,
        .mmap           = ocfs2_mmap,
        .fsync          = ocfs2_sync_file,
        .release        = ocfs2_file_release,
        .open           = ocfs2_file_open,
        .read_iter      = ocfs2_file_read_iter,
-       .aio_write      = ocfs2_file_aio_write,
+       .write_iter     = ocfs2_file_write_iter,
        .unlocked_ioctl = ocfs2_ioctl,
 #ifdef CONFIG_COMPAT
        .compat_ioctl   = ocfs2_compat_ioctl,