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/nilfs2/page.h | 80 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 kernel/fs/nilfs2/page.h (limited to 'kernel/fs/nilfs2/page.h') diff --git a/kernel/fs/nilfs2/page.h b/kernel/fs/nilfs2/page.h new file mode 100644 index 000000000..a43b8287d --- /dev/null +++ b/kernel/fs/nilfs2/page.h @@ -0,0 +1,80 @@ +/* + * page.h - buffer/page management specific to NILFS + * + * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Written by Ryusuke Konishi , + * Seiji Kihara . + */ + +#ifndef _NILFS_PAGE_H +#define _NILFS_PAGE_H + +#include +#include "nilfs.h" + +/* + * Extended buffer state bits + */ +enum { + BH_NILFS_Allocated = BH_PrivateStart, + BH_NILFS_Node, + BH_NILFS_Volatile, + BH_NILFS_Checked, + BH_NILFS_Redirected, +}; + +BUFFER_FNS(NILFS_Node, nilfs_node) /* nilfs node buffers */ +BUFFER_FNS(NILFS_Volatile, nilfs_volatile) +BUFFER_FNS(NILFS_Checked, nilfs_checked) /* buffer is verified */ +BUFFER_FNS(NILFS_Redirected, nilfs_redirected) /* redirected to a copy */ + + +int __nilfs_clear_page_dirty(struct page *); + +struct buffer_head *nilfs_grab_buffer(struct inode *, struct address_space *, + unsigned long, unsigned long); +void nilfs_forget_buffer(struct buffer_head *); +void nilfs_copy_buffer(struct buffer_head *, struct buffer_head *); +int nilfs_page_buffers_clean(struct page *); +void nilfs_page_bug(struct page *); + +int nilfs_copy_dirty_pages(struct address_space *, struct address_space *); +void nilfs_copy_back_pages(struct address_space *, struct address_space *); +void nilfs_clear_dirty_page(struct page *, bool); +void nilfs_clear_dirty_pages(struct address_space *, bool); +void nilfs_mapping_init(struct address_space *mapping, struct inode *inode); +unsigned nilfs_page_count_clean_buffers(struct page *, unsigned, unsigned); +unsigned long nilfs_find_uncommitted_extent(struct inode *inode, + sector_t start_blk, + sector_t *blkoff); + +#define NILFS_PAGE_BUG(page, m, a...) \ + do { nilfs_page_bug(page); BUG(); } while (0) + +static inline struct buffer_head * +nilfs_page_get_nth_block(struct page *page, unsigned int count) +{ + struct buffer_head *bh = page_buffers(page); + + while (count-- > 0) + bh = bh->b_this_page; + get_bh(bh); + return bh; +} + +#endif /* _NILFS_PAGE_H */ -- cgit 1.2.3-korg