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From: David Howells <dhowells@redhat.com>
To: Jeff Layton <jlayton@kernel.org>, Steve French <smfrench@gmail.com>
Cc: David Howells <dhowells@redhat.com>,
	Matthew Wilcox <willy@infradead.org>,
	Marc Dionne <marc.dionne@auristor.com>,
	Paulo Alcantara <pc@manguebit.com>,
	Shyam Prasad N <sprasad@microsoft.com>,
	Tom Talpey <tom@talpey.com>,
	Dominique Martinet <asmadeus@codewreck.org>,
	Eric Van Hensbergen <ericvh@kernel.org>,
	Ilya Dryomov <idryomov@gmail.com>,
	Christian Brauner <christian@brauner.io>,
	linux-cachefs@redhat.com, linux-afs@lists.infradead.org,
	linux-cifs@vger.kernel.org, linux-nfs@vger.kernel.org,
	ceph-devel@vger.kernel.org, v9fs@lists.linux.dev,
	linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 02/59] netfs, fscache: Combine fscache with netfs
Date: Thu,  7 Dec 2023 21:21:09 +0000	[thread overview]
Message-ID: <20231207212206.1379128-3-dhowells@redhat.com> (raw)
In-Reply-To: <20231207212206.1379128-1-dhowells@redhat.com>

Now that the fscache code is moved to be colocated with the netfslib code
so that they combined into one module, do the combining.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: Christian Brauner <christian@brauner.io>
cc: linux-fsdevel@vger.kernel.org
cc: linux-cachefs@redhat.com
---
 fs/netfs/Kconfig            |   4 +-
 fs/netfs/Makefile           |  24 ++--
 fs/netfs/fscache_internal.h | 267 +-----------------------------------
 fs/netfs/fscache_main.c     |  17 +--
 fs/netfs/internal.h         | 194 +++++++++++++++++++++++++-
 fs/netfs/main.c             |   1 -
 fs/nfs/Kconfig              |   4 +-
 7 files changed, 213 insertions(+), 298 deletions(-)

diff --git a/fs/netfs/Kconfig b/fs/netfs/Kconfig
index b4378688357c..bec805e0c44c 100644
--- a/fs/netfs/Kconfig
+++ b/fs/netfs/Kconfig
@@ -23,8 +23,8 @@ config NETFS_STATS
 	  debugging purposes.  Saying 'Y' here is recommended.
 
 config FSCACHE
-	tristate "General filesystem local caching manager"
-	select NETFS_SUPPORT
+	bool "General filesystem local caching manager"
+	depends on NETFS_SUPPORT
 	help
 	  This option enables a generic filesystem caching manager that can be
 	  used by various network and other filesystems to cache data locally.
diff --git a/fs/netfs/Makefile b/fs/netfs/Makefile
index bbb2b824bd5e..b57162ef9cfb 100644
--- a/fs/netfs/Makefile
+++ b/fs/netfs/Makefile
@@ -1,17 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 
-fscache-y := \
-	fscache_cache.o \
-	fscache_cookie.o \
-	fscache_io.o \
-	fscache_main.o \
-	fscache_volume.o
-
-fscache-$(CONFIG_PROC_FS) += fscache_proc.o
-fscache-$(CONFIG_FSCACHE_STATS) += fscache_stats.o
-
-obj-$(CONFIG_FSCACHE) := fscache.o
-
 netfs-y := \
 	buffered_read.o \
 	io.o \
@@ -21,4 +9,16 @@ netfs-y := \
 
 netfs-$(CONFIG_NETFS_STATS) += stats.o
 
+netfs-$(CONFIG_FSCACHE) += \
+	fscache_cache.o \
+	fscache_cookie.o \
+	fscache_io.o \
+	fscache_main.o \
+	fscache_volume.o
+
+ifeq ($(CONFIG_PROC_FS),y)
+netfs-$(CONFIG_FSCACHE) += fscache_proc.o
+endif
+netfs-$(CONFIG_FSCACHE_STATS) += fscache_stats.o
+
 obj-$(CONFIG_NETFS_SUPPORT) += netfs.o
diff --git a/fs/netfs/fscache_internal.h b/fs/netfs/fscache_internal.h
index 1336f517e9b1..a09b948fcef2 100644
--- a/fs/netfs/fscache_internal.h
+++ b/fs/netfs/fscache_internal.h
@@ -5,273 +5,10 @@
  * Written by David Howells (dhowells@redhat.com)
  */
 
+#include "internal.h"
+
 #ifdef pr_fmt
 #undef pr_fmt
 #endif
 
 #define pr_fmt(fmt) "FS-Cache: " fmt
-
-#include <linux/slab.h>
-#include <linux/fscache-cache.h>
-#include <trace/events/fscache.h>
-#include <linux/sched.h>
-#include <linux/seq_file.h>
-
-/*
- * cache.c
- */
-#ifdef CONFIG_PROC_FS
-extern const struct seq_operations fscache_caches_seq_ops;
-#endif
-bool fscache_begin_cache_access(struct fscache_cache *cache, enum fscache_access_trace why);
-void fscache_end_cache_access(struct fscache_cache *cache, enum fscache_access_trace why);
-struct fscache_cache *fscache_lookup_cache(const char *name, bool is_cache);
-void fscache_put_cache(struct fscache_cache *cache, enum fscache_cache_trace where);
-
-static inline enum fscache_cache_state fscache_cache_state(const struct fscache_cache *cache)
-{
-	return smp_load_acquire(&cache->state);
-}
-
-static inline bool fscache_cache_is_live(const struct fscache_cache *cache)
-{
-	return fscache_cache_state(cache) == FSCACHE_CACHE_IS_ACTIVE;
-}
-
-static inline void fscache_set_cache_state(struct fscache_cache *cache,
-					   enum fscache_cache_state new_state)
-{
-	smp_store_release(&cache->state, new_state);
-
-}
-
-static inline bool fscache_set_cache_state_maybe(struct fscache_cache *cache,
-						 enum fscache_cache_state old_state,
-						 enum fscache_cache_state new_state)
-{
-	return try_cmpxchg_release(&cache->state, &old_state, new_state);
-}
-
-/*
- * cookie.c
- */
-extern struct kmem_cache *fscache_cookie_jar;
-#ifdef CONFIG_PROC_FS
-extern const struct seq_operations fscache_cookies_seq_ops;
-#endif
-extern struct timer_list fscache_cookie_lru_timer;
-
-extern void fscache_print_cookie(struct fscache_cookie *cookie, char prefix);
-extern bool fscache_begin_cookie_access(struct fscache_cookie *cookie,
-					enum fscache_access_trace why);
-
-static inline void fscache_see_cookie(struct fscache_cookie *cookie,
-				      enum fscache_cookie_trace where)
-{
-	trace_fscache_cookie(cookie->debug_id, refcount_read(&cookie->ref),
-			     where);
-}
-
-/*
- * main.c
- */
-extern unsigned fscache_debug;
-
-extern unsigned int fscache_hash(unsigned int salt, const void *data, size_t len);
-
-/*
- * proc.c
- */
-#ifdef CONFIG_PROC_FS
-extern int __init fscache_proc_init(void);
-extern void fscache_proc_cleanup(void);
-#else
-#define fscache_proc_init()	(0)
-#define fscache_proc_cleanup()	do {} while (0)
-#endif
-
-/*
- * stats.c
- */
-#ifdef CONFIG_FSCACHE_STATS
-extern atomic_t fscache_n_volumes;
-extern atomic_t fscache_n_volumes_collision;
-extern atomic_t fscache_n_volumes_nomem;
-extern atomic_t fscache_n_cookies;
-extern atomic_t fscache_n_cookies_lru;
-extern atomic_t fscache_n_cookies_lru_expired;
-extern atomic_t fscache_n_cookies_lru_removed;
-extern atomic_t fscache_n_cookies_lru_dropped;
-
-extern atomic_t fscache_n_acquires;
-extern atomic_t fscache_n_acquires_ok;
-extern atomic_t fscache_n_acquires_oom;
-
-extern atomic_t fscache_n_invalidates;
-
-extern atomic_t fscache_n_relinquishes;
-extern atomic_t fscache_n_relinquishes_retire;
-extern atomic_t fscache_n_relinquishes_dropped;
-
-extern atomic_t fscache_n_resizes;
-extern atomic_t fscache_n_resizes_null;
-
-static inline void fscache_stat(atomic_t *stat)
-{
-	atomic_inc(stat);
-}
-
-static inline void fscache_stat_d(atomic_t *stat)
-{
-	atomic_dec(stat);
-}
-
-#define __fscache_stat(stat) (stat)
-
-int fscache_stats_show(struct seq_file *m, void *v);
-#else
-
-#define __fscache_stat(stat) (NULL)
-#define fscache_stat(stat) do {} while (0)
-#define fscache_stat_d(stat) do {} while (0)
-#endif
-
-/*
- * volume.c
- */
-#ifdef CONFIG_PROC_FS
-extern const struct seq_operations fscache_volumes_seq_ops;
-#endif
-
-struct fscache_volume *fscache_get_volume(struct fscache_volume *volume,
-					  enum fscache_volume_trace where);
-void fscache_put_volume(struct fscache_volume *volume,
-			enum fscache_volume_trace where);
-bool fscache_begin_volume_access(struct fscache_volume *volume,
-				 struct fscache_cookie *cookie,
-				 enum fscache_access_trace why);
-void fscache_create_volume(struct fscache_volume *volume, bool wait);
-
-
-/*****************************************************************************/
-/*
- * debug tracing
- */
-#define dbgprintk(FMT, ...) \
-	printk("[%-6.6s] "FMT"\n", current->comm, ##__VA_ARGS__)
-
-#define kenter(FMT, ...) dbgprintk("==> %s("FMT")", __func__, ##__VA_ARGS__)
-#define kleave(FMT, ...) dbgprintk("<== %s()"FMT"", __func__, ##__VA_ARGS__)
-#define kdebug(FMT, ...) dbgprintk(FMT, ##__VA_ARGS__)
-
-#define kjournal(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
-
-#ifdef __KDEBUG
-#define _enter(FMT, ...) kenter(FMT, ##__VA_ARGS__)
-#define _leave(FMT, ...) kleave(FMT, ##__VA_ARGS__)
-#define _debug(FMT, ...) kdebug(FMT, ##__VA_ARGS__)
-
-#elif defined(CONFIG_FSCACHE_DEBUG)
-#define _enter(FMT, ...)			\
-do {						\
-	if (__do_kdebug(ENTER))			\
-		kenter(FMT, ##__VA_ARGS__);	\
-} while (0)
-
-#define _leave(FMT, ...)			\
-do {						\
-	if (__do_kdebug(LEAVE))			\
-		kleave(FMT, ##__VA_ARGS__);	\
-} while (0)
-
-#define _debug(FMT, ...)			\
-do {						\
-	if (__do_kdebug(DEBUG))			\
-		kdebug(FMT, ##__VA_ARGS__);	\
-} while (0)
-
-#else
-#define _enter(FMT, ...) no_printk("==> %s("FMT")", __func__, ##__VA_ARGS__)
-#define _leave(FMT, ...) no_printk("<== %s()"FMT"", __func__, ##__VA_ARGS__)
-#define _debug(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
-#endif
-
-/*
- * determine whether a particular optional debugging point should be logged
- * - we need to go through three steps to persuade cpp to correctly join the
- *   shorthand in FSCACHE_DEBUG_LEVEL with its prefix
- */
-#define ____do_kdebug(LEVEL, POINT) \
-	unlikely((fscache_debug & \
-		  (FSCACHE_POINT_##POINT << (FSCACHE_DEBUG_ ## LEVEL * 3))))
-#define ___do_kdebug(LEVEL, POINT) \
-	____do_kdebug(LEVEL, POINT)
-#define __do_kdebug(POINT) \
-	___do_kdebug(FSCACHE_DEBUG_LEVEL, POINT)
-
-#define FSCACHE_DEBUG_CACHE	0
-#define FSCACHE_DEBUG_COOKIE	1
-#define FSCACHE_DEBUG_OBJECT	2
-#define FSCACHE_DEBUG_OPERATION	3
-
-#define FSCACHE_POINT_ENTER	1
-#define FSCACHE_POINT_LEAVE	2
-#define FSCACHE_POINT_DEBUG	4
-
-#ifndef FSCACHE_DEBUG_LEVEL
-#define FSCACHE_DEBUG_LEVEL CACHE
-#endif
-
-/*
- * assertions
- */
-#if 1 /* defined(__KDEBUGALL) */
-
-#define ASSERT(X)							\
-do {									\
-	if (unlikely(!(X))) {						\
-		pr_err("\n");					\
-		pr_err("Assertion failed\n");	\
-		BUG();							\
-	}								\
-} while (0)
-
-#define ASSERTCMP(X, OP, Y)						\
-do {									\
-	if (unlikely(!((X) OP (Y)))) {					\
-		pr_err("\n");					\
-		pr_err("Assertion failed\n");	\
-		pr_err("%lx " #OP " %lx is false\n",		\
-		       (unsigned long)(X), (unsigned long)(Y));		\
-		BUG();							\
-	}								\
-} while (0)
-
-#define ASSERTIF(C, X)							\
-do {									\
-	if (unlikely((C) && !(X))) {					\
-		pr_err("\n");					\
-		pr_err("Assertion failed\n");	\
-		BUG();							\
-	}								\
-} while (0)
-
-#define ASSERTIFCMP(C, X, OP, Y)					\
-do {									\
-	if (unlikely((C) && !((X) OP (Y)))) {				\
-		pr_err("\n");					\
-		pr_err("Assertion failed\n");	\
-		pr_err("%lx " #OP " %lx is false\n",		\
-		       (unsigned long)(X), (unsigned long)(Y));		\
-		BUG();							\
-	}								\
-} while (0)
-
-#else
-
-#define ASSERT(X)			do {} while (0)
-#define ASSERTCMP(X, OP, Y)		do {} while (0)
-#define ASSERTIF(C, X)			do {} while (0)
-#define ASSERTIFCMP(C, X, OP, Y)	do {} while (0)
-
-#endif /* assert or not */
diff --git a/fs/netfs/fscache_main.c b/fs/netfs/fscache_main.c
index dad85fd84f6f..00600a4d9ce5 100644
--- a/fs/netfs/fscache_main.c
+++ b/fs/netfs/fscache_main.c
@@ -8,18 +8,9 @@
 #define FSCACHE_DEBUG_LEVEL CACHE
 #include <linux/module.h>
 #include <linux/init.h>
-#define CREATE_TRACE_POINTS
 #include "internal.h"
-
-MODULE_DESCRIPTION("FS Cache Manager");
-MODULE_AUTHOR("Red Hat, Inc.");
-MODULE_LICENSE("GPL");
-
-unsigned fscache_debug;
-module_param_named(debug, fscache_debug, uint,
-		   S_IWUSR | S_IRUGO);
-MODULE_PARM_DESC(fscache_debug,
-		 "FS-Cache debugging mask");
+#define CREATE_TRACE_POINTS
+#include <trace/events/fscache.h>
 
 EXPORT_TRACEPOINT_SYMBOL(fscache_access_cache);
 EXPORT_TRACEPOINT_SYMBOL(fscache_access_volume);
@@ -92,7 +83,7 @@ static int __init fscache_init(void)
 		goto error_cookie_jar;
 	}
 
-	pr_notice("Loaded\n");
+	pr_notice("FS-Cache loaded\n");
 	return 0;
 
 error_cookie_jar:
@@ -115,7 +106,7 @@ static void __exit fscache_exit(void)
 	kmem_cache_destroy(fscache_cookie_jar);
 	fscache_proc_cleanup();
 	destroy_workqueue(fscache_wq);
-	pr_notice("Unloaded\n");
+	pr_notice("FS-Cache unloaded\n");
 }
 
 module_exit(fscache_exit);
diff --git a/fs/netfs/internal.h b/fs/netfs/internal.h
index e96432499eb2..dc764b98c7f0 100644
--- a/fs/netfs/internal.h
+++ b/fs/netfs/internal.h
@@ -9,8 +9,9 @@
 #include <linux/seq_file.h>
 #include <linux/netfs.h>
 #include <linux/fscache.h>
+#include <linux/fscache-cache.h>
 #include <trace/events/netfs.h>
-#include "fscache_internal.h"
+#include <trace/events/fscache.h>
 
 #ifdef pr_fmt
 #undef pr_fmt
@@ -106,11 +107,145 @@ static inline bool netfs_is_cache_enabled(struct netfs_inode *ctx)
 #endif
 }
 
+/*
+ * fscache-cache.c
+ */
+#ifdef CONFIG_PROC_FS
+extern const struct seq_operations fscache_caches_seq_ops;
+#endif
+bool fscache_begin_cache_access(struct fscache_cache *cache, enum fscache_access_trace why);
+void fscache_end_cache_access(struct fscache_cache *cache, enum fscache_access_trace why);
+struct fscache_cache *fscache_lookup_cache(const char *name, bool is_cache);
+void fscache_put_cache(struct fscache_cache *cache, enum fscache_cache_trace where);
+
+static inline enum fscache_cache_state fscache_cache_state(const struct fscache_cache *cache)
+{
+	return smp_load_acquire(&cache->state);
+}
+
+static inline bool fscache_cache_is_live(const struct fscache_cache *cache)
+{
+	return fscache_cache_state(cache) == FSCACHE_CACHE_IS_ACTIVE;
+}
+
+static inline void fscache_set_cache_state(struct fscache_cache *cache,
+					   enum fscache_cache_state new_state)
+{
+	smp_store_release(&cache->state, new_state);
+
+}
+
+static inline bool fscache_set_cache_state_maybe(struct fscache_cache *cache,
+						 enum fscache_cache_state old_state,
+						 enum fscache_cache_state new_state)
+{
+	return try_cmpxchg_release(&cache->state, &old_state, new_state);
+}
+
+/*
+ * fscache-cookie.c
+ */
+extern struct kmem_cache *fscache_cookie_jar;
+#ifdef CONFIG_PROC_FS
+extern const struct seq_operations fscache_cookies_seq_ops;
+#endif
+extern struct timer_list fscache_cookie_lru_timer;
+
+extern void fscache_print_cookie(struct fscache_cookie *cookie, char prefix);
+extern bool fscache_begin_cookie_access(struct fscache_cookie *cookie,
+					enum fscache_access_trace why);
+
+static inline void fscache_see_cookie(struct fscache_cookie *cookie,
+				      enum fscache_cookie_trace where)
+{
+	trace_fscache_cookie(cookie->debug_id, refcount_read(&cookie->ref),
+			     where);
+}
+
+/*
+ * fscache-main.c
+ */
+extern unsigned fscache_debug;
+
+extern unsigned int fscache_hash(unsigned int salt, const void *data, size_t len);
+
+/*
+ * fscache-proc.c
+ */
+#ifdef CONFIG_PROC_FS
+extern int __init fscache_proc_init(void);
+extern void fscache_proc_cleanup(void);
+#else
+#define fscache_proc_init()	(0)
+#define fscache_proc_cleanup()	do {} while (0)
+#endif
+
+/*
+ * fscache-stats.c
+ */
+#ifdef CONFIG_FSCACHE_STATS
+extern atomic_t fscache_n_volumes;
+extern atomic_t fscache_n_volumes_collision;
+extern atomic_t fscache_n_volumes_nomem;
+extern atomic_t fscache_n_cookies;
+extern atomic_t fscache_n_cookies_lru;
+extern atomic_t fscache_n_cookies_lru_expired;
+extern atomic_t fscache_n_cookies_lru_removed;
+extern atomic_t fscache_n_cookies_lru_dropped;
+
+extern atomic_t fscache_n_acquires;
+extern atomic_t fscache_n_acquires_ok;
+extern atomic_t fscache_n_acquires_oom;
+
+extern atomic_t fscache_n_invalidates;
+
+extern atomic_t fscache_n_relinquishes;
+extern atomic_t fscache_n_relinquishes_retire;
+extern atomic_t fscache_n_relinquishes_dropped;
+
+extern atomic_t fscache_n_resizes;
+extern atomic_t fscache_n_resizes_null;
+
+static inline void fscache_stat(atomic_t *stat)
+{
+	atomic_inc(stat);
+}
+
+static inline void fscache_stat_d(atomic_t *stat)
+{
+	atomic_dec(stat);
+}
+
+#define __fscache_stat(stat) (stat)
+
+int fscache_stats_show(struct seq_file *m, void *v);
+#else
+
+#define __fscache_stat(stat) (NULL)
+#define fscache_stat(stat) do {} while (0)
+#define fscache_stat_d(stat) do {} while (0)
+#endif
+
+/*
+ * fscache-volume.c
+ */
+#ifdef CONFIG_PROC_FS
+extern const struct seq_operations fscache_volumes_seq_ops;
+#endif
+
+struct fscache_volume *fscache_get_volume(struct fscache_volume *volume,
+					  enum fscache_volume_trace where);
+void fscache_put_volume(struct fscache_volume *volume,
+			enum fscache_volume_trace where);
+bool fscache_begin_volume_access(struct fscache_volume *volume,
+				 struct fscache_cookie *cookie,
+				 enum fscache_access_trace why);
+void fscache_create_volume(struct fscache_volume *volume, bool wait);
+
 /*****************************************************************************/
 /*
  * debug tracing
  */
-#if 0
 #define dbgprintk(FMT, ...) \
 	printk("[%-6.6s] "FMT"\n", current->comm, ##__VA_ARGS__)
 
@@ -147,4 +282,57 @@ do {						\
 #define _leave(FMT, ...) no_printk("<== %s()"FMT"", __func__, ##__VA_ARGS__)
 #define _debug(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
 #endif
-#endif
+
+/*
+ * assertions
+ */
+#if 1 /* defined(__KDEBUGALL) */
+
+#define ASSERT(X)							\
+do {									\
+	if (unlikely(!(X))) {						\
+		pr_err("\n");					\
+		pr_err("Assertion failed\n");	\
+		BUG();							\
+	}								\
+} while (0)
+
+#define ASSERTCMP(X, OP, Y)						\
+do {									\
+	if (unlikely(!((X) OP (Y)))) {					\
+		pr_err("\n");					\
+		pr_err("Assertion failed\n");	\
+		pr_err("%lx " #OP " %lx is false\n",		\
+		       (unsigned long)(X), (unsigned long)(Y));		\
+		BUG();							\
+	}								\
+} while (0)
+
+#define ASSERTIF(C, X)							\
+do {									\
+	if (unlikely((C) && !(X))) {					\
+		pr_err("\n");					\
+		pr_err("Assertion failed\n");	\
+		BUG();							\
+	}								\
+} while (0)
+
+#define ASSERTIFCMP(C, X, OP, Y)					\
+do {									\
+	if (unlikely((C) && !((X) OP (Y)))) {				\
+		pr_err("\n");					\
+		pr_err("Assertion failed\n");	\
+		pr_err("%lx " #OP " %lx is false\n",		\
+		       (unsigned long)(X), (unsigned long)(Y));		\
+		BUG();							\
+	}								\
+} while (0)
+
+#else
+
+#define ASSERT(X)			do {} while (0)
+#define ASSERTCMP(X, OP, Y)		do {} while (0)
+#define ASSERTIF(C, X)			do {} while (0)
+#define ASSERTIFCMP(C, X, OP, Y)	do {} while (0)
+
+#endif /* assert or not */
diff --git a/fs/netfs/main.c b/fs/netfs/main.c
index 1f3d5a9e0a12..068568702957 100644
--- a/fs/netfs/main.c
+++ b/fs/netfs/main.c
@@ -15,7 +15,6 @@ MODULE_DESCRIPTION("Network fs support");
 MODULE_AUTHOR("Red Hat, Inc.");
 MODULE_LICENSE("GPL");
 
-unsigned fscache_debug;
 unsigned netfs_debug;
 module_param_named(debug, netfs_debug, uint, S_IWUSR | S_IRUGO);
 MODULE_PARM_DESC(netfs_debug, "Netfs support debugging mask");
diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index 01ac733a6320..f7e32d76e34d 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -169,8 +169,8 @@ config ROOT_NFS
 
 config NFS_FSCACHE
 	bool "Provide NFS client caching support"
-	depends on NFS_FS=m && FSCACHE || NFS_FS=y && FSCACHE=y
-	select NETFS_SUPPORT
+	depends on NFS_FS=m && NETFS_SUPPORT || NFS_FS=y && NETFS_SUPPORT=y
+	select FSCACHE
 	help
 	  Say Y here if you want NFS data to be cached locally on disc through
 	  the general filesystem cache manager


  parent reply	other threads:[~2023-12-07 21:22 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-07 21:21 [PATCH v3 00/59] netfs, afs, 9p, cifs: Delegate high-level I/O to netfslib David Howells
2023-12-07 21:21 ` [PATCH v3 01/59] netfs, fscache: Move fs/fscache/* into fs/netfs/ David Howells
2023-12-07 21:21 ` David Howells [this message]
2023-12-07 21:21 ` [PATCH v3 03/59] netfs, fscache: Remove ->begin_cache_operation David Howells
2023-12-07 21:21 ` [PATCH v3 04/59] netfs, fscache: Move /proc/fs/fscache to /proc/fs/netfs and put in a symlink David Howells
2023-12-13 15:19   ` Jeff Layton
2023-12-13 15:32   ` David Howells
2023-12-07 21:21 ` [PATCH v3 05/59] netfs: Move pinning-for-writeback from fscache to netfs David Howells
2023-12-07 21:21 ` [PATCH v3 06/59] netfs: Add a procfile to list in-progress requests David Howells
2023-12-07 21:21 ` [PATCH v3 07/59] netfs: Allow the netfs to make the io (sub)request alloc larger David Howells
2023-12-07 21:21 ` [PATCH v3 08/59] netfs: Add a ->free_subrequest() op David Howells
2023-12-07 21:21 ` [PATCH v3 09/59] afs: Don't use folio->private to record partial modification David Howells
2023-12-07 21:21 ` [PATCH v3 10/59] netfs: Provide invalidate_folio and release_folio calls David Howells
2023-12-07 21:21 ` [PATCH v3 11/59] netfs: Implement unbuffered/DIO vs buffered I/O locking David Howells
2023-12-07 21:21 ` [PATCH v3 12/59] netfs: Add iov_iters to (sub)requests to describe various buffers David Howells
2023-12-07 21:21 ` [PATCH v3 13/59] netfs: Add support for DIO buffering David Howells
2023-12-07 21:21 ` [PATCH v3 14/59] netfs: Provide tools to create a buffer in an xarray David Howells
2023-12-07 21:21 ` [PATCH v3 15/59] netfs: Add bounce buffering support David Howells
2023-12-07 21:21 ` [PATCH v3 16/59] netfs: Add func to calculate pagecount/size-limited span of an iterator David Howells
2023-12-07 21:21 ` [PATCH v3 17/59] netfs: Limit subrequest by size or number of segments David Howells
2023-12-07 21:21 ` [PATCH v3 18/59] netfs: Export netfs_put_subrequest() and some tracepoints David Howells
2023-12-07 21:21 ` [PATCH v3 19/59] netfs: Extend the netfs_io_*request structs to handle writes David Howells
2023-12-07 21:21 ` [PATCH v3 20/59] netfs: Add a hook to allow tell the netfs to update its i_size David Howells
2023-12-07 21:21 ` [PATCH v3 21/59] netfs: Make netfs_put_request() handle a NULL pointer David Howells
2023-12-07 21:21 ` [PATCH v3 22/59] netfs: Make the refcounting of netfs_begin_read() easier to use David Howells
2023-12-07 21:21 ` [PATCH v3 23/59] netfs: Prep to use folio->private for write grouping and streaming write David Howells
2023-12-07 21:34   ` Matthew Wilcox
2023-12-07 21:21 ` [PATCH v3 24/59] netfs: Dispatch write requests to process a writeback slice David Howells
2023-12-07 21:21 ` [PATCH v3 25/59] netfs: Provide func to copy data to pagecache for buffered write David Howells
2023-12-07 21:21 ` [PATCH v3 26/59] netfs: Make netfs_read_folio() handle streaming-write pages David Howells
2023-12-07 21:21 ` [PATCH v3 27/59] netfs: Allocate multipage folios in the writepath David Howells
2023-12-07 21:21 ` [PATCH v3 28/59] netfs: Implement support for unbuffered/DIO read David Howells
2023-12-07 21:21 ` [PATCH v3 29/59] netfs: Implement unbuffered/DIO write support David Howells
2023-12-07 21:21 ` [PATCH v3 30/59] netfs: Implement buffered write API David Howells
2023-12-07 21:21 ` [PATCH v3 31/59] netfs: Allow buffered shared-writeable mmap through netfs_page_mkwrite() David Howells
2023-12-07 21:21 ` [PATCH v3 32/59] netfs: Provide netfs_file_read_iter() David Howells
2023-12-07 21:21 ` [PATCH v3 33/59] netfs, cachefiles: Pass upper bound length to allow expansion David Howells
2023-12-07 21:21 ` [PATCH v3 34/59] netfs: Provide a writepages implementation David Howells
2023-12-07 21:21 ` [PATCH v3 35/59] netfs: Provide minimum blocksize parameter David Howells
2023-12-07 21:21 ` [PATCH v3 36/59] netfs: Make netfs_skip_folio_read() take account of blocksize David Howells
2023-12-07 21:21 ` [PATCH v3 37/59] netfs: Perform content encryption David Howells
2023-12-07 21:21 ` [PATCH v3 38/59] netfs: Decrypt encrypted content David Howells
2023-12-07 21:21 ` [PATCH v3 39/59] netfs: Support decryption on ubuffered/DIO read David Howells
2023-12-07 21:21 ` [PATCH v3 40/59] netfs: Support encryption on Unbuffered/DIO write David Howells
2023-12-07 21:21 ` [PATCH v3 41/59] netfs: Provide a launder_folio implementation David Howells
2023-12-07 21:21 ` [PATCH v3 42/59] netfs: Implement a write-through caching option David Howells
2023-12-07 21:21 ` [PATCH v3 43/59] netfs: Rearrange netfs_io_subrequest to put request pointer first David Howells
2023-12-07 21:21 ` [PATCH v3 44/59] netfs: Optimise away reads above the point at which there can be no data David Howells
2023-12-07 21:21 ` [PATCH v3 45/59] afs: Use the netfs write helpers David Howells
2023-12-07 21:21 ` [PATCH v3 46/59] 9p: Use netfslib read/write_iter David Howells
2023-12-07 21:21 ` [PATCH v3 47/59] cifs: Replace cifs_readdata with a wrapper around netfs_io_subrequest David Howells
2023-12-07 21:21 ` [PATCH v3 48/59] cifs: Share server EOF pos with netfslib David Howells
2023-12-07 21:21 ` [PATCH v3 49/59] cifs: Set zero_point in the copy_file_range() and remap_file_range() David Howells
2023-12-07 21:21 ` [PATCH v3 50/59] cifs: Replace cifs_writedata with a wrapper around netfs_io_subrequest David Howells
2023-12-07 21:21 ` [PATCH v3 51/59] cifs: Use more fields from netfs_io_subrequest David Howells
2023-12-07 21:21 ` [PATCH v3 52/59] cifs: Make wait_mtu_credits take size_t args David Howells
2023-12-07 21:22 ` [PATCH v3 53/59] cifs: Implement netfslib hooks David Howells
2023-12-07 21:22 ` [PATCH v3 54/59] cifs: Move cifs_loose_read_iter() and cifs_file_write_iter() to file.c David Howells
2023-12-07 21:22 ` [PATCH v3 55/59] cifs: Cut over to using netfslib David Howells
2023-12-07 21:22 ` [PATCH v3 56/59] cifs: Remove some code that's no longer used, part 1 David Howells
2023-12-07 21:22 ` [PATCH v3 57/59] cifs: Remove some code that's no longer used, part 2 David Howells
2023-12-07 21:22 ` [PATCH v3 58/59] cifs: Remove some code that's no longer used, part 3 David Howells
2023-12-07 21:22 ` [PATCH v3 59/59] netfs: Eliminate PG_fscache by setting folio->private and marking dirty David Howells
2023-12-07 21:38   ` Matthew Wilcox
2023-12-07 21:57   ` David Howells

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