From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/fs/ocfs2/uptodate.h | 84 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 kernel/fs/ocfs2/uptodate.h (limited to 'kernel/fs/ocfs2/uptodate.h') diff --git a/kernel/fs/ocfs2/uptodate.h b/kernel/fs/ocfs2/uptodate.h new file mode 100644 index 000000000..0d826fe2d --- /dev/null +++ b/kernel/fs/ocfs2/uptodate.h @@ -0,0 +1,84 @@ +/* -*- mode: c; c-basic-offset: 8; -*- + * vim: noexpandtab sw=8 ts=8 sts=0: + * + * uptodate.h + * + * Cluster uptodate tracking + * + * Copyright (C) 2002, 2004, 2005 Oracle. All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This program 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 021110-1307, USA. + */ + +#ifndef OCFS2_UPTODATE_H +#define OCFS2_UPTODATE_H + +/* + * The caching code relies on locking provided by the user of + * struct ocfs2_caching_info. These operations connect that up. + */ +struct ocfs2_caching_operations { + /* + * A u64 representing the owning structure. Usually this + * is the block number (i_blkno or whatnot). This is used so + * that caching log messages can identify the owning structure. + */ + u64 (*co_owner)(struct ocfs2_caching_info *ci); + + /* The superblock is needed during I/O. */ + struct super_block *(*co_get_super)(struct ocfs2_caching_info *ci); + /* + * Lock and unlock the caching data. These will not sleep, and + * should probably be spinlocks. + */ + void (*co_cache_lock)(struct ocfs2_caching_info *ci); + void (*co_cache_unlock)(struct ocfs2_caching_info *ci); + + /* + * Lock and unlock for disk I/O. These will sleep, and should + * be mutexes. + */ + void (*co_io_lock)(struct ocfs2_caching_info *ci); + void (*co_io_unlock)(struct ocfs2_caching_info *ci); +}; + +int __init init_ocfs2_uptodate_cache(void); +void exit_ocfs2_uptodate_cache(void); + +void ocfs2_metadata_cache_init(struct ocfs2_caching_info *ci, + const struct ocfs2_caching_operations *ops); +void ocfs2_metadata_cache_purge(struct ocfs2_caching_info *ci); +void ocfs2_metadata_cache_exit(struct ocfs2_caching_info *ci); + +u64 ocfs2_metadata_cache_owner(struct ocfs2_caching_info *ci); +void ocfs2_metadata_cache_io_lock(struct ocfs2_caching_info *ci); +void ocfs2_metadata_cache_io_unlock(struct ocfs2_caching_info *ci); + +int ocfs2_buffer_uptodate(struct ocfs2_caching_info *ci, + struct buffer_head *bh); +void ocfs2_set_buffer_uptodate(struct ocfs2_caching_info *ci, + struct buffer_head *bh); +void ocfs2_set_new_buffer_uptodate(struct ocfs2_caching_info *ci, + struct buffer_head *bh); +void ocfs2_remove_from_cache(struct ocfs2_caching_info *ci, + struct buffer_head *bh); +void ocfs2_remove_xattr_clusters_from_cache(struct ocfs2_caching_info *ci, + sector_t block, + u32 c_len); +int ocfs2_buffer_read_ahead(struct ocfs2_caching_info *ci, + struct buffer_head *bh); + +#endif /* OCFS2_UPTODATE_H */ -- cgit 1.2.3-korg