41 STATIC int xfs_attr_shortform_addname(xfs_da_args_t *args);
46 STATIC int xfs_attr_leaf_get(xfs_da_args_t *args);
47 STATIC int xfs_attr_leaf_removename(xfs_da_args_t *args);
48 STATIC int xfs_attr_leaf_hasname(struct xfs_da_args *args, struct xfs_buf **bp);
49 STATIC int xfs_attr_leaf_try_add(struct xfs_da_args *args, struct xfs_buf *bp);
54 STATIC int xfs_attr_node_get(xfs_da_args_t *args);
55 STATIC void xfs_attr_restore_rmt_blk(struct xfs_da_args *args);
60 STATIC int xfs_attr_node_hasname(xfs_da_args_t *args,
66 STATIC int xfs_attr_node_removename(struct xfs_da_args *args,
110 	struct xfs_da_args	*args)  in xfs_attr_get_ilocked()  argument
112 	ASSERT(xfs_isilocked(args->dp, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));  in xfs_attr_get_ilocked()
114 	if (!xfs_inode_hasattr(args->dp))  in xfs_attr_get_ilocked()
117 	if (args->dp->i_afp->if_format == XFS_DINODE_FMT_LOCAL)  in xfs_attr_get_ilocked()
118 		return xfs_attr_shortform_getvalue(args);  in xfs_attr_get_ilocked()
119 	if (xfs_attr_is_leaf(args->dp))  in xfs_attr_get_ilocked()
120 		return xfs_attr_leaf_get(args);  in xfs_attr_get_ilocked()
121 	return xfs_attr_node_get(args);  in xfs_attr_get_ilocked()
127  * If args->valuelen is zero, then the caller does not want the value, just an
129  * exists. The size is returned in args.valuelen.
131  * If args->value is NULL but args->valuelen is non-zero, allocate the buffer
133  * caller always has to free args->value if it is set, no matter if this
137  * args->valuelen, return -ERANGE with the size of the attribute that was found
138  * in args->valuelen.
142 	struct xfs_da_args	*args)  in xfs_attr_get()  argument
147 	XFS_STATS_INC(args->dp->i_mount, xs_attr_get);  in xfs_attr_get()
149 	if (xfs_is_shutdown(args->dp->i_mount))  in xfs_attr_get()
152 	args->geo = args->dp->i_mount->m_attr_geo;  in xfs_attr_get()
153 	args->whichfork = XFS_ATTR_FORK;  in xfs_attr_get()
154 	args->hashval = xfs_da_hashname(args->name, args->namelen);  in xfs_attr_get()
157 	args->op_flags = XFS_DA_OP_OKNOENT;  in xfs_attr_get()
159 	lock_mode = xfs_ilock_attr_map_shared(args->dp);  in xfs_attr_get()
160 	error = xfs_attr_get_ilocked(args);  in xfs_attr_get()
161 	xfs_iunlock(args->dp, lock_mode);  in xfs_attr_get()
171 	struct xfs_da_args	*args,  in xfs_attr_calc_size()  argument
174 	struct xfs_mount	*mp = args->dp->i_mount;  in xfs_attr_calc_size()
182 	size = xfs_attr_leaf_newentsize(args, local);  in xfs_attr_calc_size()
185 		if (size > (args->geo->blksize / 2)) {  in xfs_attr_calc_size()
194 		uint	dblocks = xfs_attr3_rmt_blocks(mp, args->valuelen);  in xfs_attr_calc_size()
205 	struct xfs_da_args	*args)  in xfs_attr_try_sf_addname()  argument
214 		xfs_attr_shortform_create(args);  in xfs_attr_try_sf_addname()
216 	error = xfs_attr_shortform_addname(args);  in xfs_attr_try_sf_addname()
224 	if (!error && !(args->op_flags & XFS_DA_OP_NOTIME))  in xfs_attr_try_sf_addname()
225 		xfs_trans_ichgtime(args->trans, dp, XFS_ICHGTIME_CHG);  in xfs_attr_try_sf_addname()
228 		xfs_trans_set_sync(args->trans);  in xfs_attr_try_sf_addname()
254 	struct xfs_da_args		*args = dac->da_args;  in xfs_attr_trans_roll()  local
264 		error = xfs_defer_finish(&args->trans);  in xfs_attr_trans_roll()
266 		error = xfs_trans_roll_inode(&args->trans, args->dp);  in xfs_attr_trans_roll()
272  * Set the attribute specified in @args.
276 	struct xfs_da_args		*args)  in xfs_attr_set_args()  argument
281 		.da_args	= args,  in xfs_attr_set_args()
292 				xfs_trans_brelse(args->trans, leaf_bp);  in xfs_attr_set_args()
305 	struct xfs_da_args		*args = dac->da_args;  in xfs_attr_sf_addname()  local
306 	struct xfs_inode		*dp = args->dp;  in xfs_attr_sf_addname()
312 	error = xfs_attr_try_sf_addname(dp, args);  in xfs_attr_sf_addname()
322 	error = xfs_attr_shortform_to_leaf(args, leaf_bp);  in xfs_attr_sf_addname()
331 	xfs_trans_bhold(args->trans, *leaf_bp);  in xfs_attr_sf_addname()
338 	trace_xfs_attr_sf_addname_return(XFS_DAS_UNINIT, args->dp);  in xfs_attr_sf_addname()
344  * Set the attribute specified in @args.
355 	struct xfs_da_args              *args = dac->da_args;  in xfs_attr_set_iter()  local
356 	struct xfs_inode		*dp = args->dp;  in xfs_attr_set_iter()
373 			xfs_trans_bhold_release(args->trans, *leaf_bp);  in xfs_attr_set_iter()
378 			error = xfs_attr_leaf_try_add(args, *leaf_bp);  in xfs_attr_set_iter()
380 				error = xfs_attr3_leaf_to_node(args);  in xfs_attr_set_iter()
399 					dac->dela_state, args->dp);  in xfs_attr_set_iter()
417 		trace_xfs_attr_set_iter_return(dac->dela_state,	args->dp);  in xfs_attr_set_iter()
430 			if (args->rmtblkno > 0) {  in xfs_attr_set_iter()
446 						       args->dp);  in xfs_attr_set_iter()
450 		error = xfs_attr_rmtval_set_value(args);  in xfs_attr_set_iter()
458 		if (!(args->op_flags & XFS_DA_OP_RENAME)) {  in xfs_attr_set_iter()
459 			if (args->rmtblkno > 0)  in xfs_attr_set_iter()
460 				error = xfs_attr3_leaf_clearflag(args);  in xfs_attr_set_iter()
473 		error = xfs_attr3_leaf_flipflags(args);  in xfs_attr_set_iter()
481 		trace_xfs_attr_set_iter_return(dac->dela_state, args->dp);  in xfs_attr_set_iter()
488 		xfs_attr_restore_rmt_blk(args);  in xfs_attr_set_iter()
489 		error = xfs_attr_rmtval_invalidate(args);  in xfs_attr_set_iter()
497 		if (args->rmtblkno) {  in xfs_attr_set_iter()
501 					dac->dela_state, args->dp);  in xfs_attr_set_iter()
506 			trace_xfs_attr_set_iter_return(dac->dela_state, args->dp);  in xfs_attr_set_iter()
517 		error = xfs_attr3_leaf_read(args->trans, args->dp, args->blkno,  in xfs_attr_set_iter()
522 		xfs_attr3_leaf_remove(bp, args);  in xfs_attr_set_iter()
526 			error = xfs_attr3_leaf_to_shortform(bp, args, forkoff);  in xfs_attr_set_iter()
536 		if (args->rmtblkno > 0) {  in xfs_attr_set_iter()
551 		if (args->rmtblkno > 0) {  in xfs_attr_set_iter()
557 					dac->dela_state, args->dp);  in xfs_attr_set_iter()
561 			error = xfs_attr_rmtval_set_value(args);  in xfs_attr_set_iter()
570 		if (!(args->op_flags & XFS_DA_OP_RENAME)) {  in xfs_attr_set_iter()
571 			if (args->rmtblkno > 0)  in xfs_attr_set_iter()
572 				error = xfs_attr3_leaf_clearflag(args);  in xfs_attr_set_iter()
585 		error = xfs_attr3_leaf_flipflags(args);  in xfs_attr_set_iter()
593 		trace_xfs_attr_set_iter_return(dac->dela_state, args->dp);  in xfs_attr_set_iter()
601 		xfs_attr_restore_rmt_blk(args);  in xfs_attr_set_iter()
603 		error = xfs_attr_rmtval_invalidate(args);  in xfs_attr_set_iter()
611 		if (args->rmtblkno) {  in xfs_attr_set_iter()
615 					dac->dela_state, args->dp);  in xfs_attr_set_iter()
621 			trace_xfs_attr_set_iter_return(dac->dela_state, args->dp);  in xfs_attr_set_iter()
647 	struct xfs_da_args	*args)  in xfs_attr_lookup()  argument
649 	struct xfs_inode	*dp = args->dp;  in xfs_attr_lookup()
657 		return xfs_attr_sf_findname(args, NULL, NULL);  in xfs_attr_lookup()
660 		error = xfs_attr_leaf_hasname(args, &bp);  in xfs_attr_lookup()
663 			xfs_trans_brelse(args->trans, bp);  in xfs_attr_lookup()
668 	return xfs_attr_node_hasname(args, NULL);  in xfs_attr_lookup()
672  * Remove the attribute specified in @args.
676 	struct xfs_da_args	*args)  in xfs_attr_remove_args()  argument
680 		.da_args	= args,  in xfs_attr_remove_args()
698  * Note: If args->value is NULL the attribute will be removed, just like the
703 	struct xfs_da_args	*args)  in xfs_attr_set()  argument
705 	struct xfs_inode	*dp = args->dp;  in xfs_attr_set()
708 	bool			rsvd = (args->attr_filter & XFS_ATTR_ROOT);  in xfs_attr_set()
720 	args->geo = mp->m_attr_geo;  in xfs_attr_set()
721 	args->whichfork = XFS_ATTR_FORK;  in xfs_attr_set()
722 	args->hashval = xfs_da_hashname(args->name, args->namelen);  in xfs_attr_set()
729 	args->op_flags = XFS_DA_OP_OKNOENT;  in xfs_attr_set()
731 	if (args->value) {  in xfs_attr_set()
734 		args->op_flags |= XFS_DA_OP_ADDNAME;  in xfs_attr_set()
735 		args->total = xfs_attr_calc_size(args, &local);  in xfs_attr_set()
743 				xfs_attr_sf_entsize_byname(args->namelen,  in xfs_attr_set()
744 						args->valuelen);  in xfs_attr_set()
753 					args->total;  in xfs_attr_set()
756 		total = args->total;  in xfs_attr_set()
759 			rmt_blks = xfs_attr3_rmt_blocks(mp, args->valuelen);  in xfs_attr_set()
772 	error = xfs_trans_alloc_inode(dp, &tres, total, 0, rsvd, &args->trans);  in xfs_attr_set()
776 	if (args->value || xfs_inode_hasattr(dp)) {  in xfs_attr_set()
783 	error = xfs_attr_lookup(args);  in xfs_attr_set()
784 	if (args->value) {  in xfs_attr_set()
785 		if (error == -EEXIST && (args->attr_flags & XATTR_CREATE))  in xfs_attr_set()
787 		if (error == -ENOATTR && (args->attr_flags & XATTR_REPLACE))  in xfs_attr_set()
792 		error = xfs_attr_set_args(args);  in xfs_attr_set()
796 		if (!args->trans)  in xfs_attr_set()
802 		error = xfs_attr_remove_args(args);  in xfs_attr_set()
812 		xfs_trans_set_sync(args->trans);  in xfs_attr_set()
814 	if (!(args->op_flags & XFS_DA_OP_NOTIME))  in xfs_attr_set()
815 		xfs_trans_ichgtime(args->trans, dp, XFS_ICHGTIME_CHG);  in xfs_attr_set()
820 	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE);  in xfs_attr_set()
821 	error = xfs_trans_commit(args->trans);  in xfs_attr_set()
827 	if (args->trans)  in xfs_attr_set()
828 		xfs_trans_cancel(args->trans);  in xfs_attr_set()
849 xfs_attr_shortform_addname(xfs_da_args_t *args)  in xfs_attr_shortform_addname()  argument
853 	trace_xfs_attr_sf_addname(args);  in xfs_attr_shortform_addname()
855 	retval = xfs_attr_shortform_lookup(args);  in xfs_attr_shortform_addname()
856 	if (retval == -ENOATTR && (args->attr_flags & XATTR_REPLACE))  in xfs_attr_shortform_addname()
859 		if (args->attr_flags & XATTR_CREATE)  in xfs_attr_shortform_addname()
861 		retval = xfs_attr_sf_removename(args);  in xfs_attr_shortform_addname()
869 		args->attr_flags &= ~XATTR_REPLACE;  in xfs_attr_shortform_addname()
872 	if (args->namelen >= XFS_ATTR_SF_ENTSIZE_MAX ||  in xfs_attr_shortform_addname()
873 	    args->valuelen >= XFS_ATTR_SF_ENTSIZE_MAX)  in xfs_attr_shortform_addname()
876 	newsize = xfs_attr_sf_totsize(args->dp);  in xfs_attr_shortform_addname()
877 	newsize += xfs_attr_sf_entsize_byname(args->namelen, args->valuelen);  in xfs_attr_shortform_addname()
879 	forkoff = xfs_attr_shortform_bytesfit(args->dp, newsize);  in xfs_attr_shortform_addname()
883 	xfs_attr_shortform_add(args, forkoff);  in xfs_attr_shortform_addname()
895 	struct xfs_da_args	*args)  in xfs_attr_save_rmt_blk()  argument
897 	args->blkno2 = args->blkno;  in xfs_attr_save_rmt_blk()
898 	args->index2 = args->index;  in xfs_attr_save_rmt_blk()
899 	args->rmtblkno2 = args->rmtblkno;  in xfs_attr_save_rmt_blk()
900 	args->rmtblkcnt2 = args->rmtblkcnt;  in xfs_attr_save_rmt_blk()
901 	args->rmtvaluelen2 = args->rmtvaluelen;  in xfs_attr_save_rmt_blk()
907 	struct xfs_da_args	*args)  in xfs_attr_restore_rmt_blk()  argument
909 	args->blkno = args->blkno2;  in xfs_attr_restore_rmt_blk()
910 	args->index = args->index2;  in xfs_attr_restore_rmt_blk()
911 	args->rmtblkno = args->rmtblkno2;  in xfs_attr_restore_rmt_blk()
912 	args->rmtblkcnt = args->rmtblkcnt2;  in xfs_attr_restore_rmt_blk()
913 	args->rmtvaluelen = args->rmtvaluelen2;  in xfs_attr_restore_rmt_blk()
928 	struct xfs_da_args	*args,  in xfs_attr_leaf_try_add()  argument
937 	retval = xfs_attr_leaf_hasname(args, &bp);  in xfs_attr_leaf_try_add()
940 	if (retval == -ENOATTR && (args->attr_flags & XATTR_REPLACE))  in xfs_attr_leaf_try_add()
943 		if (args->attr_flags & XATTR_CREATE)  in xfs_attr_leaf_try_add()
946 		trace_xfs_attr_leaf_replace(args);  in xfs_attr_leaf_try_add()
949 		args->op_flags |= XFS_DA_OP_RENAME;	/* an atomic rename */  in xfs_attr_leaf_try_add()
950 		xfs_attr_save_rmt_blk(args);  in xfs_attr_leaf_try_add()
957 		args->rmtblkno = 0;  in xfs_attr_leaf_try_add()
958 		args->rmtblkcnt = 0;  in xfs_attr_leaf_try_add()
959 		args->rmtvaluelen = 0;  in xfs_attr_leaf_try_add()
965 	return xfs_attr3_leaf_add(bp, args);  in xfs_attr_leaf_try_add()
968 	xfs_trans_brelse(args->trans, bp);  in xfs_attr_leaf_try_add()
977 	struct xfs_da_args	*args,  in xfs_attr_leaf_hasname()  argument
982 	error = xfs_attr3_leaf_read(args->trans, args->dp, 0, bp);  in xfs_attr_leaf_hasname()
986 	error = xfs_attr3_leaf_lookup_int(*bp, args);  in xfs_attr_leaf_hasname()
988 		xfs_trans_brelse(args->trans, *bp);  in xfs_attr_leaf_hasname()
1001 	struct xfs_da_args	*args)  in xfs_attr_leaf_removename()  argument
1007 	trace_xfs_attr_leaf_removename(args);  in xfs_attr_leaf_removename()
1012 	dp = args->dp;  in xfs_attr_leaf_removename()
1014 	error = xfs_attr_leaf_hasname(args, &bp);  in xfs_attr_leaf_removename()
1017 		xfs_trans_brelse(args->trans, bp);  in xfs_attr_leaf_removename()
1022 	xfs_attr3_leaf_remove(bp, args);  in xfs_attr_leaf_removename()
1029 		return xfs_attr3_leaf_to_shortform(bp, args, forkoff);  in xfs_attr_leaf_removename()
1044 xfs_attr_leaf_get(xfs_da_args_t *args)  in xfs_attr_leaf_get()  argument
1049 	trace_xfs_attr_leaf_get(args);  in xfs_attr_leaf_get()
1051 	error = xfs_attr_leaf_hasname(args, &bp);  in xfs_attr_leaf_get()
1054 		xfs_trans_brelse(args->trans, bp);  in xfs_attr_leaf_get()
1060 	error = xfs_attr3_leaf_getvalue(bp, args);  in xfs_attr_leaf_get()
1061 	xfs_trans_brelse(args->trans, bp);  in xfs_attr_leaf_get()
1072 	struct xfs_da_args	*args,  in xfs_attr_node_hasname()  argument
1078 	state = xfs_da_state_alloc(args);  in xfs_attr_node_hasname()
1106 	struct xfs_da_args		*args = dac->da_args;  in xfs_attr_node_addname_find_attr()  local
1113 	retval = xfs_attr_node_hasname(args, &dac->da_state);  in xfs_attr_node_addname_find_attr()
1117 	if (retval == -ENOATTR && (args->attr_flags & XATTR_REPLACE))  in xfs_attr_node_addname_find_attr()
1120 		if (args->attr_flags & XATTR_CREATE)  in xfs_attr_node_addname_find_attr()
1123 		trace_xfs_attr_node_replace(args);  in xfs_attr_node_addname_find_attr()
1126 		args->op_flags |= XFS_DA_OP_RENAME;	/* atomic rename op */  in xfs_attr_node_addname_find_attr()
1127 		xfs_attr_save_rmt_blk(args);  in xfs_attr_node_addname_find_attr()
1134 		args->rmtblkno = 0;  in xfs_attr_node_addname_find_attr()
1135 		args->rmtblkcnt = 0;  in xfs_attr_node_addname_find_attr()
1136 		args->rmtvaluelen = 0;  in xfs_attr_node_addname_find_attr()
1165 	struct xfs_da_args		*args = dac->da_args;  in xfs_attr_node_addname()  local
1170 	trace_xfs_attr_node_addname(args);  in xfs_attr_node_addname()
1175 	error = xfs_attr3_leaf_add(blk->bp, state->args);  in xfs_attr_node_addname()
1185 			error = xfs_attr3_leaf_to_node(args);  in xfs_attr_node_addname()
1198 					dac->dela_state, args->dp);  in xfs_attr_node_addname()
1230 	struct xfs_da_args		*args = dac->da_args;  in xfs_attr_node_addname_clear_incomplete()  local
1239 	args->attr_filter |= XFS_ATTR_INCOMPLETE;  in xfs_attr_node_addname_clear_incomplete()
1240 	state = xfs_da_state_alloc(args);  in xfs_attr_node_addname_clear_incomplete()
1246 	error = xfs_attr_node_removename(args, state);  in xfs_attr_node_addname_clear_incomplete()
1271 	struct xfs_da_args	*args,  in xfs_attr_node_shrink()  argument
1274 	struct xfs_inode	*dp = args->dp;  in xfs_attr_node_shrink()
1285 	error = xfs_attr3_leaf_read(args->trans, args->dp, 0, &bp);  in xfs_attr_node_shrink()
1291 		error = xfs_attr3_leaf_to_shortform(bp, args, forkoff);  in xfs_attr_node_shrink()
1294 		xfs_trans_brelse(args->trans, bp);  in xfs_attr_node_shrink()
1305 	struct xfs_da_args	*args,  in xfs_attr_leaf_mark_incomplete()  argument
1322 	return xfs_attr3_leaf_setflag(args);  in xfs_attr_leaf_mark_incomplete()
1334 	struct xfs_da_args		*args = dac->da_args;  in xfs_attr_node_removename_setup()  local
1338 	error = xfs_attr_node_hasname(args, state);  in xfs_attr_node_removename_setup()
1347 	if (args->rmtblkno > 0) {  in xfs_attr_node_removename_setup()
1348 		error = xfs_attr_leaf_mark_incomplete(args, *state);  in xfs_attr_node_removename_setup()
1352 		error = xfs_attr_rmtval_invalidate(args);  in xfs_attr_node_removename_setup()
1363 	struct xfs_da_args	*args,  in xfs_attr_node_removename()  argument
1374 	retval = xfs_attr3_leaf_remove(blk->bp, args);  in xfs_attr_node_removename()
1381  * Remove the attribute specified in @args.
1396 	struct xfs_da_args		*args = dac->da_args;  in xfs_attr_remove_iter()  local
1399 	struct xfs_inode		*dp = args->dp;  in xfs_attr_remove_iter()
1401 	trace_xfs_attr_node_removename(args);  in xfs_attr_remove_iter()
1413 			return xfs_attr_sf_removename(args);  in xfs_attr_remove_iter()
1416 			return xfs_attr_leaf_removename(args);  in xfs_attr_remove_iter()
1439 		if (args->rmtblkno > 0) {  in xfs_attr_remove_iter()
1447 						dac->dela_state, args->dp);  in xfs_attr_remove_iter()
1458 			ASSERT(args->rmtblkno == 0);  in xfs_attr_remove_iter()
1464 			trace_xfs_attr_remove_iter_return(dac->dela_state, args->dp);  in xfs_attr_remove_iter()
1480 		retval = xfs_attr_node_removename(args, state);  in xfs_attr_remove_iter()
1494 					dac->dela_state, args->dp);  in xfs_attr_remove_iter()
1506 			error = xfs_attr_node_shrink(args, state);  in xfs_attr_remove_iter()
1533 	trace_xfs_attr_fillstate(state->args);  in xfs_attr_fillstate()
1581 	trace_xfs_attr_refillstate(state->args);  in xfs_attr_refillstate()
1591 			error = xfs_da3_node_read_mapped(state->args->trans,  in xfs_attr_refillstate()
1592 					state->args->dp, blk->disk_blkno,  in xfs_attr_refillstate()
1609 			error = xfs_da3_node_read_mapped(state->args->trans,  in xfs_attr_refillstate()
1610 					state->args->dp, blk->disk_blkno,  in xfs_attr_refillstate()
1633 	struct xfs_da_args	*args)  in xfs_attr_node_get()  argument
1640 	trace_xfs_attr_node_get(args);  in xfs_attr_node_get()
1645 	error = xfs_attr_node_hasname(args, &state);  in xfs_attr_node_get()
1653 	error = xfs_attr3_leaf_getvalue(blk->bp, args);  in xfs_attr_node_get()
1660 		xfs_trans_brelse(args->trans, state->path.blk[i].bp);  in xfs_attr_node_get()