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b533a83f2b
Move the PG_fscache related helper funcs (such as SetPageFsCache()) to linux/netfs.h rather than linux/fscache.h as the intention is to move to a model where they're used by the network filesystem and the helper library, but not by fscache/cachefiles itself. Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Jeff Layton <jlayton@kernel.org> Tested-by: Dave Wysochanski <dwysocha@redhat.com> Tested-By: Marc Dionne <marc.dionne@auristor.com> cc: Matthew Wilcox <willy@infradead.org> cc: linux-mm@kvack.org cc: linux-cachefs@redhat.com cc: linux-afs@lists.infradead.org cc: linux-nfs@vger.kernel.org cc: linux-cifs@vger.kernel.org cc: ceph-devel@vger.kernel.org cc: v9fs-developer@lists.sourceforge.net cc: linux-fsdevel@vger.kernel.org Link: https://lore.kernel.org/r/161340392347.1303470.18065131603507621762.stgit@warthog.procyon.org.uk/ # v3 Link: https://lore.kernel.org/r/161539534516.286939.6265142985563005000.stgit@warthog.procyon.org.uk/ # v4 Link: https://lore.kernel.org/r/161653792959.2770958.5386546945273988117.stgit@warthog.procyon.org.uk/ # v5 Link: https://lore.kernel.org/r/161789073997.6155.18442271115255650614.stgit@warthog.procyon.org.uk/ # v6
29 lines
867 B
C
29 lines
867 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* Network filesystem support services.
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*
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* Copyright (C) 2021 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* See:
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*
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* Documentation/filesystems/netfs_library.rst
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*
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* for a description of the network filesystem interface declared here.
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*/
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#ifndef _LINUX_NETFS_H
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#define _LINUX_NETFS_H
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#include <linux/pagemap.h>
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/*
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* Overload PG_private_2 to give us PG_fscache - this is used to indicate that
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* a page is currently backed by a local disk cache
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*/
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#define PageFsCache(page) PagePrivate2((page))
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#define SetPageFsCache(page) SetPagePrivate2((page))
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#define ClearPageFsCache(page) ClearPagePrivate2((page))
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#define TestSetPageFsCache(page) TestSetPagePrivate2((page))
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#define TestClearPageFsCache(page) TestClearPagePrivate2((page))
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#endif /* _LINUX_NETFS_H */
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