75 typedef int (*ea_call_t) (struct gfs2_inode *ip, struct buffer_head *bh,
79 static int ea_foreach_i(struct gfs2_inode *ip, struct buffer_head *bh,  in ea_foreach_i()  argument
85 	if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), bh, GFS2_METATYPE_EA))  in ea_foreach_i()
97 		error = ea_call(ip, bh, ea, prev, data);  in ea_foreach_i()
112 	gfs2_consist_inode(ip);  in ea_foreach_i()
116 static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data)  in ea_foreach()  argument
122 	error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, &bh);  in ea_foreach()
126 	if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT)) {  in ea_foreach()
127 		error = ea_foreach_i(ip, bh, ea_call, data);  in ea_foreach()
131 	if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), bh, GFS2_METATYPE_IN)) {  in ea_foreach()
137 	end = eablk + GFS2_SB(&ip->i_inode)->sd_inptrs;  in ea_foreach()
146 		error = gfs2_meta_read(ip->i_gl, bn, DIO_WAIT, &eabh);  in ea_foreach()
149 		error = ea_foreach_i(ip, eabh, ea_call, data);  in ea_foreach()
166 static int ea_find_i(struct gfs2_inode *ip, struct buffer_head *bh,  in ea_find_i()  argument
190 static int gfs2_ea_find(struct gfs2_inode *ip, int type, const char *name,  in gfs2_ea_find()  argument
203 	error = ea_foreach(ip, ea_find_i, &ef);  in gfs2_ea_find()
225 static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,  in ea_dealloc_unstuffed()  argument
230 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);  in ea_dealloc_unstuffed()
261 		gfs2_consist_inode(ip);  in ea_dealloc_unstuffed()
274 	gfs2_trans_add_meta(ip->i_gl, bh);  in ea_dealloc_unstuffed()
286 				gfs2_free_meta(ip, bstart, blen);  in ea_dealloc_unstuffed()
292 		gfs2_add_inode_blocks(&ip->i_inode, -1);  in ea_dealloc_unstuffed()
295 		gfs2_free_meta(ip, bstart, blen);  in ea_dealloc_unstuffed()
310 	error = gfs2_meta_inode_buffer(ip, &dibh);  in ea_dealloc_unstuffed()
312 		ip->i_inode.i_ctime = CURRENT_TIME;  in ea_dealloc_unstuffed()
313 		gfs2_trans_add_meta(ip->i_gl, dibh);  in ea_dealloc_unstuffed()
314 		gfs2_dinode_out(ip, dibh->b_data);  in ea_dealloc_unstuffed()
325 static int ea_remove_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,  in ea_remove_unstuffed()  argument
331 	error = gfs2_rindex_update(GFS2_SB(&ip->i_inode));  in ea_remove_unstuffed()
335 	error = gfs2_quota_hold(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE);  in ea_remove_unstuffed()
339 	error = ea_dealloc_unstuffed(ip, bh, ea, prev, (leave) ? &error : NULL);  in ea_remove_unstuffed()
341 	gfs2_quota_unhold(ip);  in ea_remove_unstuffed()
365 static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh,  in ea_list_i()  argument
423 	struct gfs2_inode *ip = GFS2_I(d_inode(dentry));  in gfs2_listxattr()  local
434 	error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh);  in gfs2_listxattr()
438 	if (ip->i_eattr) {  in gfs2_listxattr()
441 		error = ea_foreach(ip, ea_list_i, &ei);  in gfs2_listxattr()
462 static int gfs2_iter_unstuffed(struct gfs2_inode *ip, struct gfs2_ea_header *ea,  in gfs2_iter_unstuffed()  argument
465 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);  in gfs2_iter_unstuffed()
480 		error = gfs2_meta_read(ip->i_gl, be64_to_cpu(*dataptrs), 0,  in gfs2_iter_unstuffed()
513 			gfs2_trans_add_meta(ip->i_gl, bh[x]);  in gfs2_iter_unstuffed()
527 static int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el,  in gfs2_ea_get_copy()  argument
539 	ret = gfs2_iter_unstuffed(ip, el->el_ea, NULL, data);  in gfs2_ea_get_copy()
545 int gfs2_xattr_acl_get(struct gfs2_inode *ip, const char *name, char **ppdata)  in gfs2_xattr_acl_get()  argument
552 	error = gfs2_ea_find(ip, GFS2_EATYPE_SYS, name, &el);  in gfs2_xattr_acl_get()
566 	error = gfs2_ea_get_copy(ip, &el, data, len);  in gfs2_xattr_acl_get()
590 	struct gfs2_inode *ip = GFS2_I(d_inode(dentry));  in gfs2_xattr_get()  local
595 	if (!ip->i_eattr)  in gfs2_xattr_get()
600 	error = gfs2_ea_find(ip, type, name, &el);  in gfs2_xattr_get()
606 		error = gfs2_ea_get_copy(ip, &el, buffer, size);  in gfs2_xattr_get()
622 static int ea_alloc_blk(struct gfs2_inode *ip, struct buffer_head **bhp)  in ea_alloc_blk()  argument
624 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);  in ea_alloc_blk()
630 	error = gfs2_alloc_blocks(ip, &block, &n, 0, NULL);  in ea_alloc_blk()
634 	*bhp = gfs2_meta_new(ip->i_gl, block);  in ea_alloc_blk()
635 	gfs2_trans_add_meta(ip->i_gl, *bhp);  in ea_alloc_blk()
645 	gfs2_add_inode_blocks(&ip->i_inode, 1);  in ea_alloc_blk()
662 static int ea_write(struct gfs2_inode *ip, struct gfs2_ea_header *ea,  in ea_write()  argument
665 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);  in ea_write()
692 			error = gfs2_alloc_blocks(ip, &block, &n, 0, NULL);  in ea_write()
696 			bh = gfs2_meta_new(ip->i_gl, block);  in ea_write()
697 			gfs2_trans_add_meta(ip->i_gl, bh);  in ea_write()
700 			gfs2_add_inode_blocks(&ip->i_inode, 1);  in ea_write()
722 typedef int (*ea_skeleton_call_t) (struct gfs2_inode *ip,
725 static int ea_alloc_skeleton(struct gfs2_inode *ip, struct gfs2_ea_request *er,  in ea_alloc_skeleton()  argument
733 	error = gfs2_rindex_update(GFS2_SB(&ip->i_inode));  in ea_alloc_skeleton()
737 	error = gfs2_quota_lock_check(ip, &ap);  in ea_alloc_skeleton()
741 	error = gfs2_inplace_reserve(ip, &ap);  in ea_alloc_skeleton()
745 	error = gfs2_trans_begin(GFS2_SB(&ip->i_inode),  in ea_alloc_skeleton()
746 				 blks + gfs2_rg_blocks(ip, blks) +  in ea_alloc_skeleton()
751 	error = skeleton_call(ip, er, private);  in ea_alloc_skeleton()
755 	error = gfs2_meta_inode_buffer(ip, &dibh);  in ea_alloc_skeleton()
757 		ip->i_inode.i_ctime = CURRENT_TIME;  in ea_alloc_skeleton()
758 		gfs2_trans_add_meta(ip->i_gl, dibh);  in ea_alloc_skeleton()
759 		gfs2_dinode_out(ip, dibh->b_data);  in ea_alloc_skeleton()
764 	gfs2_trans_end(GFS2_SB(&ip->i_inode));  in ea_alloc_skeleton()
766 	gfs2_inplace_release(ip);  in ea_alloc_skeleton()
768 	gfs2_quota_unlock(ip);  in ea_alloc_skeleton()
772 static int ea_init_i(struct gfs2_inode *ip, struct gfs2_ea_request *er,  in ea_init_i()  argument
778 	error = ea_alloc_blk(ip, &bh);  in ea_init_i()
782 	ip->i_eattr = bh->b_blocknr;  in ea_init_i()
783 	error = ea_write(ip, GFS2_EA_BH2FIRST(bh), er);  in ea_init_i()
798 static int ea_init(struct gfs2_inode *ip, int type, const char *name,  in ea_init()  argument
802 	unsigned int jbsize = GFS2_SB(&ip->i_inode)->sd_jbsize;  in ea_init()
814 	return ea_alloc_skeleton(ip, &er, blks, ea_init_i, NULL);  in ea_init()
834 static void ea_set_remove_stuffed(struct gfs2_inode *ip,  in ea_set_remove_stuffed()  argument
841 	gfs2_trans_add_meta(ip->i_gl, el->el_bh);  in ea_set_remove_stuffed()
848 		gfs2_assert_withdraw(GFS2_SB(&ip->i_inode), GFS2_EA2NEXT(prev) == ea);  in ea_set_remove_stuffed()
868 static int ea_set_simple_noalloc(struct gfs2_inode *ip, struct buffer_head *bh,  in ea_set_simple_noalloc()  argument
875 	error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + 2 * RES_EATTR, 0);  in ea_set_simple_noalloc()
879 	gfs2_trans_add_meta(ip->i_gl, bh);  in ea_set_simple_noalloc()
884 	ea_write(ip, ea, er);  in ea_set_simple_noalloc()
887 		ea_set_remove_stuffed(ip, es->es_el);  in ea_set_simple_noalloc()
889 	error = gfs2_meta_inode_buffer(ip, &dibh);  in ea_set_simple_noalloc()
892 	ip->i_inode.i_ctime = CURRENT_TIME;  in ea_set_simple_noalloc()
893 	gfs2_trans_add_meta(ip->i_gl, dibh);  in ea_set_simple_noalloc()
894 	gfs2_dinode_out(ip, dibh->b_data);  in ea_set_simple_noalloc()
897 	gfs2_trans_end(GFS2_SB(&ip->i_inode));  in ea_set_simple_noalloc()
901 static int ea_set_simple_alloc(struct gfs2_inode *ip,  in ea_set_simple_alloc()  argument
908 	gfs2_trans_add_meta(ip->i_gl, es->es_bh);  in ea_set_simple_alloc()
913 	error = ea_write(ip, ea, er);  in ea_set_simple_alloc()
918 		ea_set_remove_stuffed(ip, es->es_el);  in ea_set_simple_alloc()
923 static int ea_set_simple(struct gfs2_inode *ip, struct buffer_head *bh,  in ea_set_simple()  argument
932 	stuffed = ea_calc_size(GFS2_SB(&ip->i_inode), es->es_er->er_name_len,  in ea_set_simple()
939 			error = ea_remove_unstuffed(ip, bh, ea, prev, 1);  in ea_set_simple()
950 		error = ea_set_simple_noalloc(ip, bh, ea, es);  in ea_set_simple()
959 					GFS2_SB(&ip->i_inode)->sd_jbsize);  in ea_set_simple()
961 		error = ea_alloc_skeleton(ip, es->es_er, blks,  in ea_set_simple()
970 static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,  in ea_set_block()  argument
973 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);  in ea_set_block()
979 	if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) {  in ea_set_block()
982 		error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT,  in ea_set_block()
1004 		gfs2_trans_add_meta(ip->i_gl, indbh);  in ea_set_block()
1008 		error = gfs2_alloc_blocks(ip, &blk, &n, 0, NULL);  in ea_set_block()
1012 		indbh = gfs2_meta_new(ip->i_gl, blk);  in ea_set_block()
1013 		gfs2_trans_add_meta(ip->i_gl, indbh);  in ea_set_block()
1018 		*eablk = cpu_to_be64(ip->i_eattr);  in ea_set_block()
1019 		ip->i_eattr = blk;  in ea_set_block()
1020 		ip->i_diskflags |= GFS2_DIF_EA_INDIRECT;  in ea_set_block()
1021 		gfs2_add_inode_blocks(&ip->i_inode, 1);  in ea_set_block()
1026 	error = ea_alloc_blk(ip, &newbh);  in ea_set_block()
1031 	error = ea_write(ip, GFS2_EA_BH2FIRST(newbh), er);  in ea_set_block()
1037 		ea_set_remove_stuffed(ip, private);  in ea_set_block()
1044 static int ea_set_i(struct gfs2_inode *ip, int type, const char *name,  in ea_set_i()  argument
1062 	error = ea_foreach(ip, ea_set_simple, &es);  in ea_set_i()
1068 	if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT))  in ea_set_i()
1070 	if (GFS2_EAREQ_SIZE_STUFFED(&er) > GFS2_SB(&ip->i_inode)->sd_jbsize)  in ea_set_i()
1071 		blks += DIV_ROUND_UP(er.er_data_len, GFS2_SB(&ip->i_inode)->sd_jbsize);  in ea_set_i()
1073 	return ea_alloc_skeleton(ip, &er, blks, ea_set_block, el);  in ea_set_i()
1076 static int ea_set_remove_unstuffed(struct gfs2_inode *ip,  in ea_set_remove_unstuffed()  argument
1081 		gfs2_assert_withdraw(GFS2_SB(&ip->i_inode),  in ea_set_remove_unstuffed()
1085 	return ea_remove_unstuffed(ip, el->el_bh, el->el_ea, el->el_prev, 0);  in ea_set_remove_unstuffed()
1088 static int ea_remove_stuffed(struct gfs2_inode *ip, struct gfs2_ea_location *el)  in ea_remove_stuffed()  argument
1095 	error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + RES_EATTR, 0);  in ea_remove_stuffed()
1099 	gfs2_trans_add_meta(ip->i_gl, el->el_bh);  in ea_remove_stuffed()
1113 	error = gfs2_meta_inode_buffer(ip, &dibh);  in ea_remove_stuffed()
1115 		ip->i_inode.i_ctime = CURRENT_TIME;  in ea_remove_stuffed()
1116 		gfs2_trans_add_meta(ip->i_gl, dibh);  in ea_remove_stuffed()
1117 		gfs2_dinode_out(ip, dibh->b_data);  in ea_remove_stuffed()
1121 	gfs2_trans_end(GFS2_SB(&ip->i_inode));  in ea_remove_stuffed()
1139 static int gfs2_xattr_remove(struct gfs2_inode *ip, int type, const char *name)  in gfs2_xattr_remove()  argument
1144 	if (!ip->i_eattr)  in gfs2_xattr_remove()
1147 	error = gfs2_ea_find(ip, type, name, &el);  in gfs2_xattr_remove()
1154 		error = ea_remove_stuffed(ip, &el);  in gfs2_xattr_remove()
1156 		error = ea_remove_unstuffed(ip, el.el_bh, el.el_ea, el.el_prev, 0);  in gfs2_xattr_remove()
1180 	struct gfs2_inode *ip = GFS2_I(inode);  in __gfs2_xattr_set()  local
1192 		return gfs2_xattr_remove(ip, type, name);  in __gfs2_xattr_set()
1197 	if (!ip->i_eattr) {  in __gfs2_xattr_set()
1200 		return ea_init(ip, type, name, value, size);  in __gfs2_xattr_set()
1203 	error = gfs2_ea_find(ip, type, name, &el);  in __gfs2_xattr_set()
1208 		if (ip->i_diskflags & GFS2_DIF_APPENDONLY) {  in __gfs2_xattr_set()
1216 			error = ea_set_i(ip, type, name, value, size, &el);  in __gfs2_xattr_set()
1218 				ea_set_remove_unstuffed(ip, &el);  in __gfs2_xattr_set()
1227 		error = ea_set_i(ip, type, name, value, size, NULL);  in __gfs2_xattr_set()
1241 static int ea_acl_chmod_unstuffed(struct gfs2_inode *ip,  in ea_acl_chmod_unstuffed()  argument
1244 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);  in ea_acl_chmod_unstuffed()
1253 	ret = gfs2_iter_unstuffed(ip, ea, data, NULL);  in ea_acl_chmod_unstuffed()
1259 int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data)  in gfs2_xattr_acl_chmod()  argument
1261 	struct inode *inode = &ip->i_inode;  in gfs2_xattr_acl_chmod()
1266 	error = gfs2_ea_find(ip, GFS2_EATYPE_SYS, GFS2_POSIX_ACL_ACCESS, &el);  in gfs2_xattr_acl_chmod()
1273 			gfs2_trans_add_meta(ip->i_gl, el.el_bh);  in gfs2_xattr_acl_chmod()
1278 		error = ea_acl_chmod_unstuffed(ip, el.el_ea, data);  in gfs2_xattr_acl_chmod()
1290 static int ea_dealloc_indirect(struct gfs2_inode *ip)  in ea_dealloc_indirect()  argument
1292 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);  in ea_dealloc_indirect()
1309 	error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, &indbh);  in ea_dealloc_indirect()
1332 				gfs2_rlist_add(ip, &rlist, bstart);  in ea_dealloc_indirect()
1339 		gfs2_rlist_add(ip, &rlist, bstart);  in ea_dealloc_indirect()
1360 	gfs2_trans_add_meta(ip->i_gl, indbh);  in ea_dealloc_indirect()
1377 				gfs2_free_meta(ip, bstart, blen);  in ea_dealloc_indirect()
1383 		gfs2_add_inode_blocks(&ip->i_inode, -1);  in ea_dealloc_indirect()
1386 		gfs2_free_meta(ip, bstart, blen);  in ea_dealloc_indirect()
1388 	ip->i_diskflags &= ~GFS2_DIF_EA_INDIRECT;  in ea_dealloc_indirect()
1390 	error = gfs2_meta_inode_buffer(ip, &dibh);  in ea_dealloc_indirect()
1392 		gfs2_trans_add_meta(ip->i_gl, dibh);  in ea_dealloc_indirect()
1393 		gfs2_dinode_out(ip, dibh->b_data);  in ea_dealloc_indirect()
1408 static int ea_dealloc_block(struct gfs2_inode *ip)  in ea_dealloc_block()  argument
1410 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);  in ea_dealloc_block()
1420 	rgd = gfs2_blk2rgrpd(sdp, ip->i_eattr, 1);  in ea_dealloc_block()
1422 		gfs2_consist_inode(ip);  in ea_dealloc_block()
1435 	gfs2_free_meta(ip, ip->i_eattr, 1);  in ea_dealloc_block()
1437 	ip->i_eattr = 0;  in ea_dealloc_block()
1438 	gfs2_add_inode_blocks(&ip->i_inode, -1);  in ea_dealloc_block()
1440 	error = gfs2_meta_inode_buffer(ip, &dibh);  in ea_dealloc_block()
1442 		gfs2_trans_add_meta(ip->i_gl, dibh);  in ea_dealloc_block()
1443 		gfs2_dinode_out(ip, dibh->b_data);  in ea_dealloc_block()
1461 int gfs2_ea_dealloc(struct gfs2_inode *ip)  in gfs2_ea_dealloc()  argument
1465 	error = gfs2_rindex_update(GFS2_SB(&ip->i_inode));  in gfs2_ea_dealloc()
1469 	error = gfs2_quota_hold(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE);  in gfs2_ea_dealloc()
1473 	error = ea_foreach(ip, ea_dealloc_unstuffed, NULL);  in gfs2_ea_dealloc()
1477 	if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) {  in gfs2_ea_dealloc()
1478 		error = ea_dealloc_indirect(ip);  in gfs2_ea_dealloc()
1483 	error = ea_dealloc_block(ip);  in gfs2_ea_dealloc()
1486 	gfs2_quota_unhold(ip);  in gfs2_ea_dealloc()