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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/include/linux/fscache.h
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
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 /* General filesystem caching interface
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  *
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  * Copyright (C) 2004-2007 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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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License
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- * as published by the Free Software Foundation; either version
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- * 2 of the License, or (at your option) any later version.
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- *
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  * NOTE!!! See:
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  *
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- *	Documentation/filesystems/caching/netfs-api.txt
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+ *	Documentation/filesystems/caching/netfs-api.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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  *
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  * Register a filesystem as desiring caching services if they're available.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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 static inline
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@@ -257,7 +253,7 @@
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  * Indicate that a filesystem no longer desires caching services for the
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  * moment.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  * Acquire a specific cache referral tag that can be used to select a specific
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  * cache in which to cache an index.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  *
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  * Release a reference to a cache referral tag previously looked up.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  * that can be used to locate files.  This is done by requesting a cookie for
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  * each index in the path to the file.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  * provided to update the auxiliary data in the cache before the object is
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  * disconnected.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  * cookie.  The auxiliary data on the cookie will be updated first if @aux_data
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  * is set.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  *
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  * Permit data-storage cache objects to be pinned in the cache.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  *
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  * Permit data-storage cache objects to be unpinned from the cache.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  * changed.  This includes the data size.  These attributes will be obtained
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  * through the get_attr() cookie definition op.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  *
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  * This can be called with spinlocks held.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  *
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  * Wait for the invalidation of an object to complete.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  * cookie so that a write to that object within the space can always be
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  * honoured.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  * Else, if the page is unbacked, -ENODATA is returned and a block may have
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  * been allocated in the cache.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  * regard to different pages, the return values are prioritised in that order.
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  * Any pages submitted for reading are removed from the pages list.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  * Else, a block will be allocated if one wasn't already, and 0 will be
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  * returned
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  * be cleared at the completion of the write to indicate the success or failure
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  * of the operation.  Note that the completion may happen before the return.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  * Note that this cannot cancel any outstanding I/O operations between this
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  * page and the cache.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  *
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  * Ask the cache if a page is being written to the cache.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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  * Ask the cache to wake us up when a page is no longer being written to the
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  * cache.
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  *
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- * See Documentation/filesystems/caching/netfs-api.txt for a complete
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+ * See Documentation/filesystems/caching/netfs-api.rst for a complete
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  * description.
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  */
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 static inline