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e9fc2aa091
As per comments from Jan Engelhardt <jengelh@linux01.gwdg.de> this updates the copyright message to say "version" in full rather than "v.2". Also incore.h has been updated to remove forward structure declarations which are not required. The gfs2_quota_lvb structure has now had endianess annotations added to it. Also quota.c has been updated so that we now store the lvb data locally in endian independant format to avoid needing a structure in host endianess too. As a result the endianess conversions are done as required at various points and thus the conversion routines in lvb.[ch] are no longer required. I've moved the one remaining constant in lvb.h thats used into lm.h and removed the unused lvb.[ch]. I have not changed the HIF_ constants. That is left to a later patch which I hope will unify the gh_flags and gh_iflags fields of the struct gfs2_holder. Cc: Jan Engelhardt <jengelh@linux01.gwdg.de> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
98 lines
3.1 KiB
C
98 lines
3.1 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 __EATTR_DOT_H__
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#define __EATTR_DOT_H__
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#define GFS2_EA_REC_LEN(ea) be32_to_cpu((ea)->ea_rec_len)
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#define GFS2_EA_DATA_LEN(ea) be32_to_cpu((ea)->ea_data_len)
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#define GFS2_EA_SIZE(ea) \
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ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \
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((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \
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(sizeof(uint64_t) * (ea)->ea_num_ptrs)), 8)
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#define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs)
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#define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST)
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#define GFS2_EAREQ_SIZE_STUFFED(er) \
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ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8)
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#define GFS2_EAREQ_SIZE_UNSTUFFED(sdp, er) \
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ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + \
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sizeof(uint64_t) * DIV_ROUND_UP((er)->er_data_len, (sdp)->sd_jbsize), 8)
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#define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1))
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#define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len)
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#define GFS2_EA2DATAPTRS(ea) \
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((uint64_t *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8)))
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#define GFS2_EA2NEXT(ea) \
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((struct gfs2_ea_header *)((char *)(ea) + GFS2_EA_REC_LEN(ea)))
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#define GFS2_EA_BH2FIRST(bh) \
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((struct gfs2_ea_header *)((bh)->b_data + sizeof(struct gfs2_meta_header)))
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#define GFS2_ERF_MODE 0x80000000
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struct gfs2_ea_request {
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char *er_name;
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char *er_data;
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unsigned int er_name_len;
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unsigned int er_data_len;
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unsigned int er_type; /* GFS2_EATYPE_... */
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int er_flags;
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mode_t er_mode;
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};
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struct gfs2_ea_location {
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struct buffer_head *el_bh;
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struct gfs2_ea_header *el_ea;
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struct gfs2_ea_header *el_prev;
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};
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int gfs2_ea_get_i(struct gfs2_inode *ip, struct gfs2_ea_request *er);
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int gfs2_ea_set_i(struct gfs2_inode *ip, struct gfs2_ea_request *er);
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int gfs2_ea_remove_i(struct gfs2_inode *ip, struct gfs2_ea_request *er);
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int gfs2_ea_list(struct gfs2_inode *ip, struct gfs2_ea_request *er);
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int gfs2_ea_get(struct gfs2_inode *ip, struct gfs2_ea_request *er);
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int gfs2_ea_set(struct gfs2_inode *ip, struct gfs2_ea_request *er);
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int gfs2_ea_remove(struct gfs2_inode *ip, struct gfs2_ea_request *er);
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int gfs2_ea_dealloc(struct gfs2_inode *ip);
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/* Exported to acl.c */
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int gfs2_ea_find(struct gfs2_inode *ip,
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struct gfs2_ea_request *er,
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struct gfs2_ea_location *el);
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int gfs2_ea_get_copy(struct gfs2_inode *ip,
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struct gfs2_ea_location *el,
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char *data);
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int gfs2_ea_acl_chmod(struct gfs2_inode *ip, struct gfs2_ea_location *el,
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struct iattr *attr, char *data);
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static inline unsigned int gfs2_ea_strlen(struct gfs2_ea_header *ea)
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{
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switch (ea->ea_type) {
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case GFS2_EATYPE_USR:
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return (5 + (ea->ea_name_len + 1));
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case GFS2_EATYPE_SYS:
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return (7 + (ea->ea_name_len + 1));
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case GFS2_EATYPE_SECURITY:
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return (9 + (ea->ea_name_len + 1));
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default:
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return (0);
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}
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}
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#endif /* __EATTR_DOT_H__ */
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