mm: Remove the PG_fscache alias for PG_private_2

Remove the PG_fscache alias for PG_private_2 and use the latter directly.
Use of this flag for marking pages undergoing writing to the cache should
be considered deprecated and the folios should be marked dirty instead and
the write done in ->writepages().

Note that PG_private_2 itself should be considered deprecated and up for
future removal by the MM folks too.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: Matthew Wilcox (Oracle) <willy@infradead.org>
cc: Ilya Dryomov <idryomov@gmail.com>
cc: Xiubo Li <xiubli@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.com>
cc: Ronnie Sahlberg <ronniesahlberg@gmail.com>
cc: Shyam Prasad N <sprasad@microsoft.com>
cc: Tom Talpey <tom@talpey.com>
cc: Bharath SM <bharathsm@microsoft.com>
cc: Trond Myklebust <trond.myklebust@hammerspace.com>
cc: Anna Schumaker <anna@kernel.org>
cc: netfs@lists.linux.dev
cc: ceph-devel@vger.kernel.org
cc: linux-cifs@vger.kernel.org
cc: linux-nfs@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org

1 files changed, 8 insertions, 8 deletions

diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c
index 9be37d0fe724..b39caae652f6 100644
--- a/fs/smb/client/file.c
+++ b/fs/smb/client/file.c
@@ -3032,12 +3032,12 @@ lock_again:
 	}
 
 	if (folio_test_writeback(folio) ||
-	    folio_test_fscache(folio)) {
+	    folio_test_private_2(folio)) { /* [DEPRECATED] */
 		folio_unlock(folio);
 		if (wbc->sync_mode != WB_SYNC_NONE) {
 			folio_wait_writeback(folio);
 #ifdef CONFIG_CIFS_FSCACHE
-			folio_wait_fscache(folio);
+			folio_wait_private_2(folio);
 #endif
 			goto lock_again;
 		}
@@ -4510,8 +4510,8 @@ static vm_fault_t cifs_page_mkwrite(struct vm_fault *vmf)
 	 * be modified.  We then assume the entire folio will need writing back.
 	 */
 #ifdef CONFIG_CIFS_FSCACHE
-	if (folio_test_fscache(folio) &&
-	    folio_wait_fscache_killable(folio) < 0)
+	if (folio_test_private_2(folio) && /* [DEPRECATED] */
+	    folio_wait_private_2_killable(folio) < 0)
 		return VM_FAULT_RETRY;
 #endif
 
@@ -4977,10 +4977,10 @@ static bool cifs_release_folio(struct folio *folio, gfp_t gfp)
 {
 	if (folio_test_private(folio))
 		return 0;
-	if (folio_test_fscache(folio)) {
+	if (folio_test_private_2(folio)) { /* [DEPRECATED] */
 		if (current_is_kswapd() || !(gfp & __GFP_FS))
 			return false;
-		folio_wait_fscache(folio);
+		folio_wait_private_2(folio);
 	}
 	fscache_note_page_release(cifs_inode_cookie(folio->mapping->host));
 	return true;
@@ -4989,7 +4989,7 @@ static bool cifs_release_folio(struct folio *folio, gfp_t gfp)
 static void cifs_invalidate_folio(struct folio *folio, size_t offset,
 				 size_t length)
 {
-	folio_wait_fscache(folio);
+	folio_wait_private_2(folio); /* [DEPRECATED] */
 }
 
 static int cifs_launder_folio(struct folio *folio)
@@ -5009,7 +5009,7 @@ static int cifs_launder_folio(struct folio *folio)
 	if (folio_clear_dirty_for_io(folio))
 		rc = cifs_writepage_locked(&folio->page, &wbc);
 
-	folio_wait_fscache(folio);
+	folio_wait_private_2(folio); /* [DEPRECATED] */
 	return rc;
 }