linux-kernel - [PATCH] mm/filemap.c: Remove unused argument from shrink_readahead_size

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Date:   Wed, 11 Mar 2020 00:51:33 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Souptick Joarder <jrdr.linux@...il.com>
Subject: [PATCH] mm/filemap.c: Remove unused argument from shrink_readahead_size_eio()

The first argument of shrink_readahead_size_eio() is not used. Hence
removed from function definition and from all the callers.

Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
---
 mm/filemap.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/mm/filemap.c b/mm/filemap.c
index 1784478..98f3703 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1962,8 +1962,7 @@ unsigned find_get_pages_range_tag(struct address_space *mapping, pgoff_t *index,
  *
  * It is going insane. Fix it by quickly scaling down the readahead size.
  */
-static void shrink_readahead_size_eio(struct file *filp,
-					struct file_ra_state *ra)
+static void shrink_readahead_size_eio(struct file_ra_state *ra)
 {
 	ra->ra_pages /= 4;
 }
@@ -2188,7 +2187,7 @@ static ssize_t generic_file_buffered_read(struct kiocb *iocb,
 					goto find_page;
 				}
 				unlock_page(page);
-				shrink_readahead_size_eio(filp, ra);
+				shrink_readahead_size_eio(ra);
 				error = -EIO;
 				goto readpage_error;
 			}
@@ -2560,7 +2559,7 @@ vm_fault_t filemap_fault(struct vm_fault *vmf)
 		goto retry_find;
 
 	/* Things didn't work out. Return zero to tell the mm layer so. */
-	shrink_readahead_size_eio(file, ra);
+	shrink_readahead_size_eio(ra);
 	return VM_FAULT_SIGBUS;
 
 out_retry:
-- 
1.9.1