fs/direct-io: Remove linux/prefetch.h include

After commit c22198e78d52 ("direct-io: remove random prefetches"), Nothing
in this file needs anything from `linux/prefetch.h`.

Signed-off-by: Youling Tang <tangyouling@kylinos.cn>
Link: https://lore.kernel.org/r/20240603014834.45294-1-youling.tang@linux.dev
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>

diff --git a/fs/direct-io.c b/fs/direct-io.c
index b0aafe640fa4286d3f2fb64a56578b8c4d53a8b1..bbd05f1a21453b931f9e6f7547abbc3b577ff9f9 100644 (file)
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -37,7 +37,6 @@
 #include <linux/rwsem.h>
 #include <linux/uio.h>
 #include <linux/atomic.h>
-#include <linux/prefetch.h>
 
 #include "internal.h"
 
@@ -1121,11 +1120,6 @@ ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
        struct blk_plug plug;
        unsigned long align = offset | iov_iter_alignment(iter);
 
-       /*
-        * Avoid references to bdev if not absolutely needed to give
-        * the early prefetch in the caller enough time.
-        */
-
        /* watch out for a 0 len io from a tricksy fs */
        if (iov_iter_rw(iter) == READ && !count)
                return 0;