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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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23591256d6
This fix means that bmap will map extents of the length requested by the VFS rather than guessing at it, or just mapping one block at a time. The other callers of gfs2_block_map are audited to ensure they send the correct max extent lengths (i.e. set bh->b_size correctly). Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
32 lines
1.1 KiB
C
32 lines
1.1 KiB
C
/*
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* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
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* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU General Public License version 2.
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*/
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#ifndef __BMAP_DOT_H__
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#define __BMAP_DOT_H__
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struct inode;
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struct gfs2_inode;
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struct page;
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int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page);
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int gfs2_block_map(struct inode *inode, u64 lblock, int create, struct buffer_head *bh);
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int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsigned *extlen);
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int gfs2_truncatei(struct gfs2_inode *ip, u64 size);
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int gfs2_truncatei_resume(struct gfs2_inode *ip);
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int gfs2_file_dealloc(struct gfs2_inode *ip);
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void gfs2_write_calc_reserv(struct gfs2_inode *ip, unsigned int len,
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unsigned int *data_blocks,
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unsigned int *ind_blocks);
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int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
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unsigned int len, int *alloc_required);
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#endif /* __BMAP_DOT_H__ */
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