cifs: register CIFS for caching (f579cf3c) · Commits · 戴 / test

fs/cifs/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -11,3 +11,5 @@ cifs-y := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o \
		cifs-$(CONFIG_CIFS_UPCALL) += cifs_spnego.o

		cifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o cifs_dfs_ref.o

		cifs-$(CONFIG_CIFS_FSCACHE) += cache.o

0 → 100644

+46 −0

Original line number	Diff line number	Diff line
		/*
		* fs/cifs/cache.c - CIFS filesystem cache index structure definitions
		*
		* Copyright (c) 2010 Novell, Inc.
		* Authors(s): Suresh Jayaraman (sjayaraman@suse.de>
		*
		* This library is free software; you can redistribute it and/or modify
		* it under the terms of the GNU Lesser General Public License as published
		* by the Free Software Foundation; either version 2.1 of the License, or
		* (at your option) any later version.
		*
		* This library is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
		* the GNU Lesser General Public License for more details.
		*
		* You should have received a copy of the GNU Lesser General Public License
		* along with this library; if not, write to the Free Software
		* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
		*/
		#include "fscache.h"

		/*
		* CIFS filesystem definition for FS-Cache
		*/
		struct fscache_netfs cifs_fscache_netfs = {
		.name = "cifs",
		.version = 0,
		};

		/*
		* Register CIFS for caching with FS-Cache
		*/
		int cifs_fscache_register(void)
		{
		return fscache_register_netfs(&cifs_fscache_netfs);
		}

		/*
		* Unregister CIFS for caching
		*/
		void cifs_fscache_unregister(void)
		{
		fscache_unregister_netfs(&cifs_fscache_netfs);
		}

+8 −0

Original line number	Diff line number	Diff line
		@@ -47,6 +47,7 @@
		#include <linux/key-type.h>
		#include "dns_resolve.h"
		#include "cifs_spnego.h"
		#include "fscache.h"
		#define CIFS_MAGIC_NUMBER 0xFF534D42 /* the first four bytes of SMB PDUs */

		int cifsFYI = 0;
		@@ -902,6 +903,10 @@ init_cifs(void)
		cFYI(1, "cifs_max_pending set to max of 256");
		}

		rc = cifs_fscache_register();
		if (rc)
		goto out;

		rc = cifs_init_inodecache();
		if (rc)
		goto out_clean_proc;
		@@ -951,6 +956,8 @@ init_cifs(void)
		cifs_destroy_inodecache();
		out_clean_proc:
		cifs_proc_clean();
		cifs_fscache_unregister();
		out:
		return rc;
		}

		@@ -959,6 +966,7 @@ exit_cifs(void)
		{
		cFYI(DBG2, "exit_cifs");
		cifs_proc_clean();
		cifs_fscache_unregister();
		#ifdef CONFIG_CIFS_DFS_UPCALL
		cifs_dfs_release_automount_timer();
		cifs_exit_dns_resolver();

0 → 100644

+39 −0

Original line number	Diff line number	Diff line
		/*
		* fs/cifs/fscache.h - CIFS filesystem cache interface definitions
		*
		* Copyright (c) 2010 Novell, Inc.
		* Authors(s): Suresh Jayaraman (sjayaraman@suse.de>
		*
		* This library is free software; you can redistribute it and/or modify
		* it under the terms of the GNU Lesser General Public License as published
		* by the Free Software Foundation; either version 2.1 of the License, or
		* (at your option) any later version.
		*
		* This library is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
		* the GNU Lesser General Public License for more details.
		*
		* You should have received a copy of the GNU Lesser General Public License
		* along with this library; if not, write to the Free Software
		* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
		*/
		#ifndef _CIFS_FSCACHE_H
		#define _CIFS_FSCACHE_H

		#include <linux/fscache.h>

		#ifdef CONFIG_CIFS_FSCACHE

		extern struct fscache_netfs cifs_fscache_netfs;

		extern int cifs_fscache_register(void);
		extern void cifs_fscache_unregister(void);

		#else /* CONFIG_CIFS_FSCACHE */
		static inline int cifs_fscache_register(void) { return 0; }
		static inline void cifs_fscache_unregister(void) {}

		#endif /* CONFIG_CIFS_FSCACHE */

		#endif /* _CIFS_FSCACHE_H */