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fe2140e2f5
Implement support for creating the directory layout for a volume on disk and setting up and withdrawing volume caching. Each volume has a directory named for the volume key under the root of the cache (prefixed with an 'I' to indicate to cachefilesd that it's an index) and then creates a bunch of hash bucket subdirectories under that (named as '@' plus a hex number) in which cookie files will be created. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> cc: linux-cachefs@redhat.com Link: https://lore.kernel.org/r/163819635314.215744.13081522301564537723.stgit@warthog.procyon.org.uk/ # v1 Link: https://lore.kernel.org/r/163906936397.143852.17788457778396467161.stgit@warthog.procyon.org.uk/ # v2 Link: https://lore.kernel.org/r/163967143860.1823006.7185205806080225038.stgit@warthog.procyon.org.uk/ # v3 Link: https://lore.kernel.org/r/164021545212.640689.5064821392307582927.stgit@warthog.procyon.org.uk/ # v4
20 lines
549 B
C
20 lines
549 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* FS-Cache interface to CacheFiles
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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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#include <linux/slab.h>
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#include <linux/mount.h>
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#include <linux/xattr.h>
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#include <linux/file.h>
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#include <linux/falloc.h>
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#include <trace/events/fscache.h>
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#include "internal.h"
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const struct fscache_cache_ops cachefiles_cache_ops = {
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.name = "cachefiles",
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.acquire_volume = cachefiles_acquire_volume,
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.free_volume = cachefiles_free_volume,
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};
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