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author | Ingo Molnar <mingo@elte.hu> | 2009-04-24 10:11:18 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-04-24 10:11:23 +0200 |
commit | 416dfdcdb894432547ead4fcb9fa6a36b396059e (patch) | |
tree | 8033fdda07397a59c5fa98c88927040906ce6c1a /fs/nilfs2/page.h | |
parent | 56449f437add737a1e5e1cb7e00f63ac8ead1938 (diff) | |
parent | 091069740304c979f957ceacec39c461d0192158 (diff) | |
download | op-kernel-dev-416dfdcdb894432547ead4fcb9fa6a36b396059e.zip op-kernel-dev-416dfdcdb894432547ead4fcb9fa6a36b396059e.tar.gz |
Merge commit 'v2.6.30-rc3' into tracing/hw-branch-tracing
Conflicts:
arch/x86/kernel/ptrace.c
Merge reason: fix the conflict above, and also pick up the CONFIG_BROKEN
dependency change from upstream so that we can remove it
here.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/nilfs2/page.h')
-rw-r--r-- | fs/nilfs2/page.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/fs/nilfs2/page.h b/fs/nilfs2/page.h new file mode 100644 index 0000000..8abca4d --- /dev/null +++ b/fs/nilfs2/page.h @@ -0,0 +1,76 @@ +/* + * 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 <ryusuke@osrg.net>, + * Seiji Kihara <kihara@osrg.net>. + */ + +#ifndef _NILFS_PAGE_H +#define _NILFS_PAGE_H + +#include <linux/buffer_head.h> +#include "nilfs.h" + +/* + * Extended buffer state bits + */ +enum { + BH_NILFS_Allocated = BH_PrivateStart, + BH_NILFS_Node, + BH_NILFS_Volatile, +}; + +BUFFER_FNS(NILFS_Allocated, nilfs_allocated) /* nilfs private buffers */ +BUFFER_FNS(NILFS_Node, nilfs_node) /* nilfs node buffers */ +BUFFER_FNS(NILFS_Volatile, nilfs_volatile) + + +void nilfs_mark_buffer_dirty(struct buffer_head *bh); +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 *); +struct page *nilfs_alloc_private_page(struct block_device *, int, + unsigned long); +void nilfs_free_private_page(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_pages(struct address_space *); +unsigned nilfs_page_count_clean_buffers(struct page *, unsigned, unsigned); + +#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 */ |