f42faf4fa4
Add the new external read function. Its temporarily in jdata.c even though the protoype is in ops_file.h - this will change shortly. The current implementation will change to a page cache one when that happens. In order to effect the above changes, the various internal inodes now have Linux inodes attached to them. We keep the references to the Linux inodes, rather than the gfs2_inodes in the super block. In order to get everything to work correctly I've had to reorder the init sequence on mount (which I should probably have done earlier when .gfs2_admin was made visible). Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
/*
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* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
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* Copyright (C) 2004-2005 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 v.2.
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*/
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#ifndef __INODE_DOT_H__
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#define __INODE_DOT_H__
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static inline int gfs2_is_stuffed(struct gfs2_inode *ip)
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{
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return !ip->i_di.di_height;
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}
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static inline int gfs2_is_jdata(struct gfs2_inode *ip)
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{
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return ip->i_di.di_flags & GFS2_DIF_JDATA;
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}
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void gfs2_inode_attr_in(struct gfs2_inode *ip);
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void gfs2_inode_attr_out(struct gfs2_inode *ip);
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struct inode *gfs2_ip2v_lookup(struct gfs2_inode *ip);
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struct inode *gfs2_ip2v(struct gfs2_inode *ip);
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struct inode *gfs2_iget(struct super_block *sb, struct gfs2_inum *inum);
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void gfs2_inode_min_init(struct gfs2_inode *ip, unsigned int type);
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int gfs2_inode_refresh(struct gfs2_inode *ip);
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int gfs2_inode_get(struct gfs2_glock *i_gl,
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struct gfs2_inum *inum, int create,
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struct gfs2_inode **ipp);
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void gfs2_inode_hold(struct gfs2_inode *ip);
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void gfs2_inode_put(struct gfs2_inode *ip);
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void gfs2_inode_destroy(struct gfs2_inode *ip);
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int gfs2_inode_dealloc(struct gfs2_sbd *sdp, struct gfs2_unlinked *ul);
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int gfs2_change_nlink(struct gfs2_inode *ip, int diff);
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int gfs2_lookupi(struct gfs2_inode *dip, struct qstr *name, int is_root,
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struct gfs2_inode **ipp);
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int gfs2_createi(struct gfs2_holder *ghs, struct qstr *name, unsigned int mode);
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int gfs2_unlinki(struct gfs2_inode *dip, struct qstr *name,
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struct gfs2_inode *ip, struct gfs2_unlinked *ul);
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int gfs2_rmdiri(struct gfs2_inode *dip, struct qstr *name,
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struct gfs2_inode *ip, struct gfs2_unlinked *ul);
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int gfs2_unlink_ok(struct gfs2_inode *dip, struct qstr *name,
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struct gfs2_inode *ip);
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int gfs2_ok_to_move(struct gfs2_inode *this, struct gfs2_inode *to);
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int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len);
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int gfs2_glock_nq_atime(struct gfs2_holder *gh);
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int gfs2_glock_nq_m_atime(unsigned int num_gh, struct gfs2_holder *ghs);
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void gfs2_try_toss_vnode(struct gfs2_inode *ip);
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int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr);
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int gfs2_repermission(struct inode *inode, int mask, struct nameidata *nd);
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static inline int gfs2_lookup_simple(struct inode *dip, char *name,
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struct inode **ipp)
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{
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struct gfs2_inode *ip;
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struct qstr qstr;
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int err;
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memset(&qstr, 0, sizeof(struct qstr));
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qstr.name = name;
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qstr.len = strlen(name);
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err = gfs2_lookupi(get_v2ip(dip), &qstr, 1, &ip);
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if (err == 0) {
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*ipp = gfs2_ip2v(ip);
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if (*ipp == NULL)
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err = -ENOMEM;
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gfs2_inode_put(ip);
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}
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return err;
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}
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#endif /* __INODE_DOT_H__ */
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