linux-brain/fs/gfs2/aops.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2018 Red Hat, Inc.  All rights reserved.
 */

#ifndef __AOPS_DOT_H__
#define __AOPS_DOT_H__

#include "incore.h"

extern void adjust_fs_space(struct inode *inode);
extern void gfs2_page_add_databufs(struct gfs2_inode *ip, struct page *page,
				   unsigned int from, unsigned int len);

#endif /* __AOPS_DOT_H__ */
gfs2: iomap buffered write support With the traditional page-based writes, blocks are allocated separately for each page written to. With iomap writes, we can allocate a lot more blocks at once, with a fraction of the allocation overhead for each page. Split calculating the number of blocks that can be allocated at a given position (gfs2_alloc_size) off from gfs2_iomap_alloc: that size determines the number of blocks to allocate and reserve in the journal. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Reviewed-by: Bob Peterson <rpeterso@redhat.com> 2018-06-24 23:04:04 +09:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`/*`
			`* Copyright (C) 2018 Red Hat, Inc. All rights reserved.`
			`*/`

			`#ifndef __AOPS_DOT_H__`
			`#define __AOPS_DOT_H__`

			`#include "incore.h"`

			`extern void adjust_fs_space(struct inode *inode);`
			`extern void gfs2_page_add_databufs(struct gfs2_inode ip, struct page page,`
			`unsigned int from, unsigned int len);`

			`#endif /* __AOPS_DOT_H__ */`