mac80211: add fast-rx path

[cascardo/linux.git] / mm / filemap.c

diff --git a/mm/filemap.c b/mm/filemap.c
index 7c00f10..a8c69c8 100644 (file)
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1840,15 +1840,16 @@ generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
        ssize_t retval = 0;
        loff_t *ppos = &iocb->ki_pos;
        loff_t pos = *ppos;
+       size_t count = iov_iter_count(iter);
+
+       if (!count)
+               goto out; /* skip atime */
 
        if (iocb->ki_flags & IOCB_DIRECT) {
                struct address_space *mapping = file->f_mapping;
                struct inode *inode = mapping->host;
-               size_t count = iov_iter_count(iter);
                loff_t size;
 
-               if (!count)
-                       goto out; /* skip atime */
                size = i_size_read(inode);
                retval = filemap_write_and_wait_range(mapping, pos,
                                        pos + count - 1);