Skip to main content

Browse the archive

Revision fc9bbca8f650e5f738af8806317c0a041a48ae4a authored by Linus Torvalds on 19 April 2013, 16:57:35 UTC, committed by Linus Torvalds on 19 April 2013, 16:57:35 UTC 
vm: convert fb_mmap to vm_iomap_memory() helper
 
This is my example conversion of a few existing mmap users.  The
fb_mmap() case is a good example because it is a bit more complicated
than some: fb_mmap() mmaps one of two different memory areas depending
on the page offset of the mmap (but happily there is never any mixing of
the two, so the helper function still works).

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 8558e4a
Raw File
super.h 
/* -*- mode: c; c-basic-offset: 8; -*-
 * vim: noexpandtab sw=8 ts=8 sts=0:
 *
 * super.h
 *
 * Function prototypes
 *
 * Copyright (C) 2002, 2004 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_SUPER_H
#define OCFS2_SUPER_H

extern struct workqueue_struct *ocfs2_wq;

int ocfs2_publish_get_mount_state(struct ocfs2_super *osb,
				  int node_num);

__printf(3, 4)
void __ocfs2_error(struct super_block *sb, const char *function,
		   const char *fmt, ...);

#define ocfs2_error(sb, fmt, args...) __ocfs2_error(sb, __PRETTY_FUNCTION__, fmt, ##args)

__printf(3, 4)
void __ocfs2_abort(struct super_block *sb, const char *function,
		   const char *fmt, ...);

#define ocfs2_abort(sb, fmt, args...) __ocfs2_abort(sb, __PRETTY_FUNCTION__, fmt, ##args)

/*
 * Void signal blockers, because in-kernel sigprocmask() only fails
 * when SIG_* is wrong.
 */
void ocfs2_block_signals(sigset_t *oldset);
void ocfs2_unblock_signals(sigset_t *oldset);

#endif /* OCFS2_SUPER_H */
back to top