linux-kernel - [PATCH] cifs: Remove {cifs,nfs}_fscache_release

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Date:   Mon, 08 Aug 2022 15:33:51 +0100
From:   David Howells <dhowells@...hat.com>
To:     willy@...radead.org
Cc:     Jeff Layton <jlayton@...hat.com>,
        Steve French <smfrench@...il.com>, linux-cifs@...r.kernel.org,
        samba-technical@...ts.samba.org, linux-fsdevel@...r.kernel.org,
        dhowells@...hat.com, linux-kernel@...r.kernel.org
Subject: [PATCH] cifs: Remove {cifs,nfs}_fscache_release_page()

Remove {cifs,nfs}_fscache_release_page() from fs/cifs/fscache.h.  This
functionality got built directly into cifs_release_folio() and will
hopefully be replaced with netfs_release_folio() at some point.

The "nfs_" version is a copy and paste error and should've been altered to
read "cifs_".  That can also be removed.

Reported-by: Matthew Wilcox <willy@...radead.org>
Signed-off-by: David Howells <dhowells@...hat.com>
cc: Jeff Layton <jlayton@...hat.com>
cc: Steve French <smfrench@...il.com>
cc: linux-cifs@...r.kernel.org
cc: samba-technical@...ts.samba.org
cc: linux-fsdevel@...r.kernel.org
---

 fs/cifs/fscache.h |   16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/fs/cifs/fscache.h b/fs/cifs/fscache.h
index aa3b941a5555..67b601041f0a 100644
--- a/fs/cifs/fscache.h
+++ b/fs/cifs/fscache.h
@@ -108,17 +108,6 @@ static inline void cifs_readpage_to_fscache(struct inode *inode,
 		__cifs_readpage_to_fscache(inode, page);
 }
 
-static inline int cifs_fscache_release_page(struct page *page, gfp_t gfp)
-{
-	if (PageFsCache(page)) {
-		if (current_is_kswapd() || !(gfp & __GFP_FS))
-			return false;
-		wait_on_page_fscache(page);
-		fscache_note_page_release(cifs_inode_cookie(page->mapping->host));
-	}
-	return true;
-}
-
 #else /* CONFIG_CIFS_FSCACHE */
 static inline
 void cifs_fscache_fill_coherency(struct inode *inode,
@@ -154,11 +143,6 @@ cifs_readpage_from_fscache(struct inode *inode, struct page *page)
 static inline
 void cifs_readpage_to_fscache(struct inode *inode, struct page *page) {}
 
-static inline int nfs_fscache_release_page(struct page *page, gfp_t gfp)
-{
-	return true; /* May release page */
-}
-
 #endif /* CONFIG_CIFS_FSCACHE */
 
 #endif /* _CIFS_FSCACHE_H */