xfs_file_buffered_aio_write(): switch to generic_perform_write()

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

diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index e593554..c3f4289 100644 (file)
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -715,7 +715,7 @@ xfs_file_buffered_aio_write(
        const struct iovec      *iovp,
        unsigned long           nr_segs,
        loff_t                  pos,
-       size_t                  ocount)
+       size_t                  count)
 {
        struct file             *file = iocb->ki_filp;
        struct address_space    *mapping = file->f_mapping;
@@ -724,7 +724,7 @@ xfs_file_buffered_aio_write(
        ssize_t                 ret;
        int                     enospc = 0;
        int                     iolock = XFS_IOLOCK_EXCL;
-       size_t                  count = ocount;
+       struct iov_iter         from;
 
        xfs_rw_ilock(ip, iolock);
 
@@ -732,14 +732,15 @@ xfs_file_buffered_aio_write(
        if (ret)
                goto out;
 
+       iov_iter_init(&from, iovp, nr_segs, count, 0);
        /* We can write back this queue in page reclaim */
        current->backing_dev_info = mapping->backing_dev_info;
 
 write_retry:
        trace_xfs_file_buffered_write(ip, count, iocb->ki_pos, 0);
-       ret = generic_file_buffered_write(iocb, iovp, nr_segs,
-                       pos, count, 0);
-
+       ret = generic_perform_write(file, &from, pos);
+       if (likely(ret >= 0))
+               iocb->ki_pos = pos + ret;
        /*
         * If we just got an ENOSPC, try to write back all dirty inodes to
         * convert delalloc space to free up some of the excess reserved