linux-kernel - [PATCH v4 04/12] NFS: remove nfs_page_lengthg and usage of page

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Date: Thu,  2 May 2024 16:46:01 +0800
From: Kairui Song <ryncsn@...il.com>
To: linux-mm@...ck.org
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	"Huang, Ying" <ying.huang@...el.com>,
	Matthew Wilcox <willy@...radead.org>,
	Chris Li <chrisl@...nel.org>,
	Barry Song <v-songbaohua@...o.com>,
	Ryan Roberts <ryan.roberts@....com>,
	Neil Brown <neilb@...e.de>,
	Minchan Kim <minchan@...nel.org>,
	Hugh Dickins <hughd@...gle.com>,
	David Hildenbrand <david@...hat.com>,
	Yosry Ahmed <yosryahmed@...gle.com>,
	linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Kairui Song <kasong@...cent.com>,
	Trond Myklebust <trond.myklebust@...merspace.com>,
	Anna Schumaker <anna@...nel.org>,
	linux-nfs@...r.kernel.org
Subject: [PATCH v4 04/12] NFS: remove nfs_page_lengthg and usage of page_index

From: Kairui Song <kasong@...cent.com>

This function is no longer used after
commit 4fa7a717b432 ("NFS: Fix up nfs_vm_page_mkwrite() for folios"),
all users have been converted to use folio instead, just delete it to
remove usage of page_index.

Signed-off-by: Kairui Song <kasong@...cent.com>
Cc: Trond Myklebust <trond.myklebust@...merspace.com>
Cc: Anna Schumaker <anna@...nel.org>
Cc: linux-nfs@...r.kernel.org
---
 fs/nfs/internal.h | 19 -------------------
 1 file changed, 19 deletions(-)

diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 06253695fe53..deac98dce6ac 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -790,25 +790,6 @@ static inline void nfs_folio_mark_unstable(struct folio *folio,
 	}
 }
 
-/*
- * Determine the number of bytes of data the page contains
- */
-static inline
-unsigned int nfs_page_length(struct page *page)
-{
-	loff_t i_size = i_size_read(page_file_mapping(page)->host);
-
-	if (i_size > 0) {
-		pgoff_t index = page_index(page);
-		pgoff_t end_index = (i_size - 1) >> PAGE_SHIFT;
-		if (index < end_index)
-			return PAGE_SIZE;
-		if (index == end_index)
-			return ((i_size - 1) & ~PAGE_MASK) + 1;
-	}
-	return 0;
-}
-
 /*
  * Determine the number of bytes of data the page contains
  */
-- 
2.44.0