4bceb18f15
The remaining non-vectorised code for the directory structure is the node format blocks. This is shared with the attribute tree, and so is slightly more complex to vectorise. Introduce a "non-directory" directory ops structure that is attached to all non-directory inodes so that attribute operations can be vectorised for all inodes. Once we do this, we can vectorise all the da btree operations. Because this patch adds more infrastructure than it removes the binary size does not decrease: text data bss dec hex filename 794490 96802 1096 892388 d9de4 fs/xfs/xfs.o.orig 792986 96802 1096 890884 d9804 fs/xfs/xfs.o.p1 792350 96802 1096 890248 d9588 fs/xfs/xfs.o.p2 789293 96802 1096 887191 d8997 fs/xfs/xfs.o.p3 789005 96802 1096 886903 d8997 fs/xfs/xfs.o.p4 789061 96802 1096 886959 d88af fs/xfs/xfs.o.p5 789733 96802 1096 887631 d8b4f fs/xfs/xfs.o.p6 Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Ben Myers <bpm@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
159 lines
5.9 KiB
C
159 lines
5.9 KiB
C
/*
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* Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __XFS_DIR2_H__
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#define __XFS_DIR2_H__
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struct xfs_bmap_free;
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struct xfs_da_args;
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struct xfs_inode;
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struct xfs_mount;
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struct xfs_trans;
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struct xfs_dir2_sf_hdr;
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struct xfs_dir2_sf_entry;
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struct xfs_dir2_data_hdr;
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struct xfs_dir2_data_entry;
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struct xfs_dir2_data_unused;
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extern struct xfs_name xfs_name_dotdot;
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/*
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* directory operations vector for encode/decode routines
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*/
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struct xfs_dir_ops {
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int (*sf_entsize)(struct xfs_dir2_sf_hdr *hdr, int len);
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struct xfs_dir2_sf_entry *
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(*sf_nextentry)(struct xfs_dir2_sf_hdr *hdr,
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struct xfs_dir2_sf_entry *sfep);
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__uint8_t (*sf_get_ftype)(struct xfs_dir2_sf_entry *sfep);
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void (*sf_put_ftype)(struct xfs_dir2_sf_entry *sfep,
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__uint8_t ftype);
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xfs_ino_t (*sf_get_ino)(struct xfs_dir2_sf_hdr *hdr,
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struct xfs_dir2_sf_entry *sfep);
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void (*sf_put_ino)(struct xfs_dir2_sf_hdr *hdr,
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struct xfs_dir2_sf_entry *sfep,
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xfs_ino_t ino);
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xfs_ino_t (*sf_get_parent_ino)(struct xfs_dir2_sf_hdr *hdr);
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void (*sf_put_parent_ino)(struct xfs_dir2_sf_hdr *hdr,
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xfs_ino_t ino);
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int (*data_entsize)(int len);
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__uint8_t (*data_get_ftype)(struct xfs_dir2_data_entry *dep);
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void (*data_put_ftype)(struct xfs_dir2_data_entry *dep,
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__uint8_t ftype);
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__be16 * (*data_entry_tag_p)(struct xfs_dir2_data_entry *dep);
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struct xfs_dir2_data_free *
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(*data_bestfree_p)(struct xfs_dir2_data_hdr *hdr);
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xfs_dir2_data_aoff_t (*data_dot_offset)(void);
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xfs_dir2_data_aoff_t (*data_dotdot_offset)(void);
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xfs_dir2_data_aoff_t (*data_first_offset)(void);
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size_t (*data_entry_offset)(void);
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struct xfs_dir2_data_entry *
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(*data_dot_entry_p)(struct xfs_dir2_data_hdr *hdr);
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struct xfs_dir2_data_entry *
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(*data_dotdot_entry_p)(struct xfs_dir2_data_hdr *hdr);
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struct xfs_dir2_data_entry *
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(*data_first_entry_p)(struct xfs_dir2_data_hdr *hdr);
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struct xfs_dir2_data_entry *
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(*data_entry_p)(struct xfs_dir2_data_hdr *hdr);
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struct xfs_dir2_data_unused *
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(*data_unused_p)(struct xfs_dir2_data_hdr *hdr);
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int (*leaf_hdr_size)(void);
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int (*leaf_max_ents)(struct xfs_mount *mp);
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struct xfs_dir2_leaf_entry *
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(*leaf_ents_p)(struct xfs_dir2_leaf *lp);
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int (*node_hdr_size)(void);
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struct xfs_da_node_entry *
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(*node_tree_p)(struct xfs_da_intnode *dap);
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};
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extern const struct xfs_dir_ops *
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xfs_dir_get_ops(struct xfs_mount *mp, struct xfs_inode *dp);
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extern const struct xfs_dir_ops *
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xfs_nondir_get_ops(struct xfs_mount *mp, struct xfs_inode *dp);
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/*
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* Generic directory interface routines
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*/
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extern void xfs_dir_startup(void);
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extern void xfs_dir_mount(struct xfs_mount *mp);
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extern int xfs_dir_isempty(struct xfs_inode *dp);
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extern int xfs_dir_init(struct xfs_trans *tp, struct xfs_inode *dp,
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struct xfs_inode *pdp);
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extern int xfs_dir_createname(struct xfs_trans *tp, struct xfs_inode *dp,
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struct xfs_name *name, xfs_ino_t inum,
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xfs_fsblock_t *first,
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struct xfs_bmap_free *flist, xfs_extlen_t tot);
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extern int xfs_dir_lookup(struct xfs_trans *tp, struct xfs_inode *dp,
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struct xfs_name *name, xfs_ino_t *inum,
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struct xfs_name *ci_name);
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extern int xfs_dir_removename(struct xfs_trans *tp, struct xfs_inode *dp,
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struct xfs_name *name, xfs_ino_t ino,
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xfs_fsblock_t *first,
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struct xfs_bmap_free *flist, xfs_extlen_t tot);
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extern int xfs_dir_replace(struct xfs_trans *tp, struct xfs_inode *dp,
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struct xfs_name *name, xfs_ino_t inum,
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xfs_fsblock_t *first,
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struct xfs_bmap_free *flist, xfs_extlen_t tot);
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extern int xfs_dir_canenter(struct xfs_trans *tp, struct xfs_inode *dp,
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struct xfs_name *name, uint resblks);
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/*
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* Direct call from the bmap code, bypassing the generic directory layer.
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*/
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extern int xfs_dir2_sf_to_block(struct xfs_da_args *args);
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/*
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* Interface routines used by userspace utilities
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*/
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extern int xfs_dir2_isblock(struct xfs_trans *tp, struct xfs_inode *dp, int *r);
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extern int xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp, int *r);
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extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db,
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struct xfs_buf *bp);
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extern void xfs_dir2_data_freescan(struct xfs_inode *dp,
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struct xfs_dir2_data_hdr *hdr, int *loghead);
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extern void xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_inode *dp,
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struct xfs_buf *bp, struct xfs_dir2_data_entry *dep);
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extern void xfs_dir2_data_log_header(struct xfs_trans *tp, struct xfs_inode *dp,
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struct xfs_buf *bp);
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extern void xfs_dir2_data_log_unused(struct xfs_trans *tp, struct xfs_buf *bp,
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struct xfs_dir2_data_unused *dup);
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extern void xfs_dir2_data_make_free(struct xfs_trans *tp, struct xfs_inode *dp,
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struct xfs_buf *bp, xfs_dir2_data_aoff_t offset,
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xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp);
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extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_inode *dp,
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struct xfs_buf *bp, struct xfs_dir2_data_unused *dup,
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xfs_dir2_data_aoff_t offset, xfs_dir2_data_aoff_t len,
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int *needlogp, int *needscanp);
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extern struct xfs_dir2_data_free *xfs_dir2_data_freefind(
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struct xfs_dir2_data_hdr *hdr, struct xfs_dir2_data_free *bf,
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struct xfs_dir2_data_unused *dup);
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extern const struct xfs_buf_ops xfs_dir3_block_buf_ops;
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extern const struct xfs_buf_ops xfs_dir3_leafn_buf_ops;
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extern const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops;
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extern const struct xfs_buf_ops xfs_dir3_free_buf_ops;
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extern const struct xfs_buf_ops xfs_dir3_data_buf_ops;
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#endif /* __XFS_DIR2_H__ */
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