35  * Compare the ntfs attribute embedded in the ntfs specific part of the vfs
36  * inode @vi for equality with the ntfs attribute @data.
60 		/* A fake inode describing an attribute. */  in ntfs_test_inode()
78  * Initialize the vfs inode @vi with the values from the ntfs attribute @data in
192  * ntfs_attr_iget - obtain a struct inode corresponding to an attribute
193  * @base_vi:	vfs base inode containing the attribute
194  * @type:	attribute type
195  * @name:	Unicode name of the attribute (NULL if unnamed)
198  * Obtain the (fake) struct inode corresponding to the attribute specified by
202  * If the attribute inode is in the cache, it is just returned with an
205  * attribute and fill in the inode structure.
210  * Return the struct inode of the attribute inode on success. Check the return
242 	 * There is no point in keeping bad attribute inodes around. This also  in ntfs_attr_iget()
243 	 * simplifies things in that we never need to check for bad attribute  in ntfs_attr_iget()
351  * The attribute runlist lock has separate locking rules from the
421  * @ctx:	initialized attribute search context
423  * Search all file name attributes in the inode described by the attribute
459 					"attribute. You should run chkdsk.");  in ntfs_is_extended_system_file()
483 		/* This attribute is ok, but is it in the $Extend directory? */  in ntfs_is_extended_system_file()
611 	 * Find the standard information attribute in the mft record. At this  in ntfs_read_locked_inode()
612 	 * stage we haven't setup the attribute list stuff yet, so this could  in ntfs_read_locked_inode()
623 			 * attribute.  in ntfs_read_locked_inode()
625 			ntfs_error(vi->i_sb, "$STANDARD_INFORMATION attribute "  in ntfs_read_locked_inode()
631 	/* Get the standard information attribute value. */  in ntfs_read_locked_inode()
658 	/* Find the attribute list attribute if present. */  in ntfs_read_locked_inode()
663 			ntfs_error(vi->i_sb, "Failed to lookup attribute list "  in ntfs_read_locked_inode()
664 					"attribute.");  in ntfs_read_locked_inode()
670 		ntfs_debug("Attribute list found in inode 0x%lx.", vi->i_ino);  in ntfs_read_locked_inode()
674 			ntfs_error(vi->i_sb, "Attribute list attribute is "  in ntfs_read_locked_inode()
681 				ntfs_error(vi->i_sb, "Non-resident attribute "  in ntfs_read_locked_inode()
682 						"list attribute is encrypted/"  in ntfs_read_locked_inode()
686 			ntfs_warning(vi->i_sb, "Resident attribute list "  in ntfs_read_locked_inode()
687 					"attribute in inode 0x%lx is marked "  in ntfs_read_locked_inode()
695 		/* Now allocate memory for the attribute list. */  in ntfs_read_locked_inode()
700 					"buffer for attribute list.");  in ntfs_read_locked_inode()
707 				ntfs_error(vi->i_sb, "Attribute list has non "  in ntfs_read_locked_inode()
724 			/* Now load the attribute list. */  in ntfs_read_locked_inode()
730 						"attribute list attribute.");  in ntfs_read_locked_inode()
738 				ntfs_error(vi->i_sb, "Corrupt attribute list "  in ntfs_read_locked_inode()
742 			/* Now copy the attribute list. */  in ntfs_read_locked_inode()
751 	 * If an attribute list is present we now have the attribute list value  in ntfs_read_locked_inode()
760 		/* It is a directory, find index root attribute. */  in ntfs_read_locked_inode()
767 				// index root attribute if recovery option is  in ntfs_read_locked_inode()
769 				ntfs_error(vi->i_sb, "$INDEX_ROOT attribute "  in ntfs_read_locked_inode()
777 			ntfs_error(vol->sb, "$INDEX_ROOT attribute is not "  in ntfs_read_locked_inode()
781 		/* Ensure the attribute name is placed before the value. */  in ntfs_read_locked_inode()
784 			ntfs_error(vol->sb, "$INDEX_ROOT attribute name is "  in ntfs_read_locked_inode()
785 					"placed after the attribute value.");  in ntfs_read_locked_inode()
799 						"compressed attribute.");  in ntfs_read_locked_inode()
810 			ntfs_error(vi->i_sb, "$INDEX_ROOT attribute is "  in ntfs_read_locked_inode()
821 			ntfs_error(vi->i_sb, "Indexed attribute is not "  in ntfs_read_locked_inode()
868 		/* Setup the index allocation attribute, even if not present. */  in ntfs_read_locked_inode()
886 		/* Find index allocation attribute. */  in ntfs_read_locked_inode()
893 						"attribute is not present but "  in ntfs_read_locked_inode()
898 						"attribute.");  in ntfs_read_locked_inode()
903 			ntfs_error(vi->i_sb, "$INDEX_ALLOCATION attribute "  in ntfs_read_locked_inode()
908 		 * Ensure the attribute name is placed before the mapping pairs  in ntfs_read_locked_inode()
914 			ntfs_error(vol->sb, "$INDEX_ALLOCATION attribute name "  in ntfs_read_locked_inode()
920 			ntfs_error(vi->i_sb, "$INDEX_ALLOCATION attribute "  in ntfs_read_locked_inode()
925 			ntfs_error(vi->i_sb, "$INDEX_ALLOCATION attribute "  in ntfs_read_locked_inode()
930 			ntfs_error(vi->i_sb, "$INDEX_ALLOCATION attribute "  in ntfs_read_locked_inode()
936 					"$INDEX_ALLOCATION attribute has non "  in ntfs_read_locked_inode()
953 		/* Get the index bitmap attribute inode. */  in ntfs_read_locked_inode()
956 			ntfs_error(vi->i_sb, "Failed to get bitmap attribute.");  in ntfs_read_locked_inode()
963 			ntfs_error(vi->i_sb, "$BITMAP attribute is compressed "  in ntfs_read_locked_inode()
976 		/* No longer need the bitmap attribute inode. */  in ntfs_read_locked_inode()
987 		/* Setup the data attribute, even if not present. */  in ntfs_read_locked_inode()
992 		/* Find first extent of the unnamed data attribute. */  in ntfs_read_locked_inode()
999 						"attribute.");  in ntfs_read_locked_inode()
1004 			 * attribute, so we special case it here.  in ntfs_read_locked_inode()
1020 			// attribute if recovery option is set.  in ntfs_read_locked_inode()
1021 			ntfs_error(vi->i_sb, "$DATA attribute is missing.");  in ntfs_read_locked_inode()
1099 						"attribute has non zero "  in ntfs_read_locked_inode()
1109 		} else { /* Resident attribute. */  in ntfs_read_locked_inode()
1116 				ntfs_error(vi->i_sb, "Resident data attribute "  in ntfs_read_locked_inode()
1173  * ntfs_read_locked_attr_inode - read an attribute inode from its base inode
1175  * @vi:		attribute inode to read
1178  * attribute inode described by @vi into memory from the base mft record
1182  * reading and looks up the attribute described by @vi before setting up the
1232 	/* Find the attribute. */  in ntfs_read_locked_attr_inode()
1245 						"attribute.  Please report "  in ntfs_read_locked_attr_inode()
1253 						"attribute but compression is "  in ntfs_read_locked_attr_inode()
1271 			ntfs_error(vi->i_sb, "Found mst protected attribute "  in ntfs_read_locked_attr_inode()
1272 					"but the attribute is %s.  Please "  in ntfs_read_locked_attr_inode()
1293 			ntfs_error(vi->i_sb, "Found mst protected attribute "  in ntfs_read_locked_attr_inode()
1294 					"but the attribute is encrypted.  "  in ntfs_read_locked_attr_inode()
1302 					"attribute.");  in ntfs_read_locked_attr_inode()
1308 		/* Ensure the attribute name is placed before the value. */  in ntfs_read_locked_attr_inode()
1311 			ntfs_error(vol->sb, "Attribute name is placed after "  in ntfs_read_locked_attr_inode()
1312 					"the attribute value.");  in ntfs_read_locked_attr_inode()
1316 			ntfs_error(vi->i_sb, "Found mst protected attribute "  in ntfs_read_locked_attr_inode()
1317 					"but the attribute is resident.  "  in ntfs_read_locked_attr_inode()
1327 			ntfs_error(vi->i_sb, "Resident attribute is corrupt "  in ntfs_read_locked_attr_inode()
1334 		 * Ensure the attribute name is placed before the mapping pairs  in ntfs_read_locked_attr_inode()
1340 			ntfs_error(vol->sb, "Attribute name is placed after "  in ntfs_read_locked_attr_inode()
1375 			ntfs_error(vi->i_sb, "First extent of attribute has "  in ntfs_read_locked_attr_inode()
1396 	 * attribute inode.  in ntfs_read_locked_attr_inode()
1415 	ntfs_error(vol->sb, "Failed with error code %i while reading attribute "  in ntfs_read_locked_attr_inode()
1440  * Note, index inodes are essentially attribute inodes (NInoAttr() is true)
1441  * with the attribute type set to AT_INDEX_ALLOCATION.  Apart from that, they
1444  * for small indices the index allocation attribute might not actually exist.
1445  * However, the index root attribute always exists but this does not need to
1447  * index.  Also, like for directories, we need to have an attribute inode for
1448  * the bitmap attribute corresponding to the index allocation attribute and we
1497 	/* Find the index root attribute. */  in ntfs_read_locked_index_inode()
1502 			ntfs_error(vi->i_sb, "$INDEX_ROOT attribute is "  in ntfs_read_locked_index_inode()
1509 		ntfs_error(vol->sb, "$INDEX_ROOT attribute is not resident.");  in ntfs_read_locked_index_inode()
1512 	/* Ensure the attribute name is placed before the value. */  in ntfs_read_locked_index_inode()
1515 		ntfs_error(vol->sb, "$INDEX_ROOT attribute name is placed "  in ntfs_read_locked_index_inode()
1516 				"after the attribute value.");  in ntfs_read_locked_index_inode()
1526 				"root attribute.");  in ntfs_read_locked_index_inode()
1532 		ntfs_error(vi->i_sb, "$INDEX_ROOT attribute is corrupt.");  in ntfs_read_locked_index_inode()
1577 	/* Check for presence of index allocation attribute. */  in ntfs_read_locked_index_inode()
1589 	/* Find index allocation attribute. */  in ntfs_read_locked_index_inode()
1595 			ntfs_error(vi->i_sb, "$INDEX_ALLOCATION attribute is "  in ntfs_read_locked_index_inode()
1600 					"$INDEX_ALLOCATION attribute.");  in ntfs_read_locked_index_inode()
1605 		ntfs_error(vi->i_sb, "$INDEX_ALLOCATION attribute is "  in ntfs_read_locked_index_inode()
1610 	 * Ensure the attribute name is placed before the mapping pairs array.  in ntfs_read_locked_index_inode()
1615 		ntfs_error(vol->sb, "$INDEX_ALLOCATION attribute name is "  in ntfs_read_locked_index_inode()
1620 		ntfs_error(vi->i_sb, "$INDEX_ALLOCATION attribute is "  in ntfs_read_locked_index_inode()
1625 		ntfs_error(vi->i_sb, "$INDEX_ALLOCATION attribute is sparse.");  in ntfs_read_locked_index_inode()
1629 		ntfs_error(vi->i_sb, "$INDEX_ALLOCATION attribute is "  in ntfs_read_locked_index_inode()
1635 				"attribute has non zero lowest_vcn.");  in ntfs_read_locked_index_inode()
1650 	/* Get the index bitmap attribute inode. */  in ntfs_read_locked_index_inode()
1653 		ntfs_error(vi->i_sb, "Failed to get bitmap attribute.");  in ntfs_read_locked_index_inode()
1660 		ntfs_error(vi->i_sb, "$BITMAP attribute is compressed and/or "  in ntfs_read_locked_index_inode()
1730  * attribute list is actually present in $MFT inode.
1732  * We solve these problems by starting with the $DATA attribute before anything
1762 	/* Setup the data attribute. It is special as it is mst protected. */  in ntfs_read_inode_mount()
1794 	/* Determine the first block of the $MFT/$DATA attribute. */  in ntfs_read_inode_mount()
1826 	/* Need this to sanity check attribute list references to $MFT. */  in ntfs_read_inode_mount()
1838 	/* Find the attribute list attribute if present. */  in ntfs_read_inode_mount()
1842 			ntfs_error(sb, "Failed to lookup attribute list "  in ntfs_read_inode_mount()
1843 					"attribute. You should run chkdsk.");  in ntfs_read_inode_mount()
1852 		ntfs_debug("Attribute list attribute found in $MFT.");  in ntfs_read_inode_mount()
1856 			ntfs_error(sb, "Attribute list attribute is "  in ntfs_read_inode_mount()
1863 				ntfs_error(sb, "Non-resident attribute list "  in ntfs_read_inode_mount()
1864 						"attribute is encrypted/"  in ntfs_read_inode_mount()
1868 			ntfs_warning(sb, "Resident attribute list attribute "  in ntfs_read_inode_mount()
1876 		/* Now allocate memory for the attribute list. */  in ntfs_read_inode_mount()
1881 					"for attribute list.");  in ntfs_read_inode_mount()
1887 				ntfs_error(sb, "Attribute list has non zero "  in ntfs_read_inode_mount()
1903 			/* Now load the attribute list. */  in ntfs_read_inode_mount()
1908 				ntfs_error(sb, "Failed to load attribute list "  in ntfs_read_inode_mount()
1909 						"attribute with error code %i.",  in ntfs_read_inode_mount()
1919 				ntfs_error(sb, "Corrupt attribute list "  in ntfs_read_inode_mount()
1920 						"attribute.");  in ntfs_read_inode_mount()
1923 			/* Now copy the attribute list. */  in ntfs_read_inode_mount()
1929 		/* The attribute list is now setup in memory. */  in ntfs_read_inode_mount()
1948 			/* Catch the end of the attribute list. */  in ntfs_read_inode_mount()
1962 			/* We want an unnamed attribute. */  in ntfs_read_inode_mount()
1991 	/* Now load all attribute extents. */  in ntfs_read_inode_mount()
1998 		/* Cache the current attribute. */  in ntfs_read_inode_mount()
2037 						"attribute has non zero "  in ntfs_read_inode_mount()
2042 			/* Get the last vcn in the $DATA attribute. */  in ntfs_read_inode_mount()
2120 			ntfs_error(sb, "$MFT has corrupt attribute list "  in ntfs_read_inode_mount()
2121 					"attribute. Run chkdsk.");  in ntfs_read_inode_mount()
2126 		ntfs_error(sb, "Failed to lookup $MFT/$DATA attribute extent. "  in ntfs_read_inode_mount()
2131 		ntfs_error(sb, "$MFT/$DATA attribute not found. $MFT is "  in ntfs_read_inode_mount()
2158 	ntfs_error(sb, "Couldn't find first extent of $DATA attribute in "  in ntfs_read_inode_mount()
2159 			"attribute list. $MFT is corrupt. Run chkdsk.");  in ntfs_read_inode_mount()
2332  * or attribute inode as well as that @vi is a base inode.
2360 	 * safe to mess with the attribute runlist and sizes.  in ntfs_truncate()
2388 			ntfs_error(vi->i_sb, "Open attribute is missing from "  in ntfs_truncate()
2393 			ntfs_error(vi->i_sb, "Failed to lookup attribute in "  in ntfs_truncate()
2401 	 * The i_size of the vfs inode is the new size for the attribute value.  in ntfs_truncate()
2404 	/* The current size of the attribute value is the old size. */  in ntfs_truncate()
2446 						"for its attribute type "  in ntfs_truncate()
2455 						"attribute type 0x%x.  "  in ntfs_truncate()
2477 	/* Resize the attribute record to best fit the new attribute size. */  in ntfs_truncate()
2489 		 * necessary data clearing in the attribute record.  When the  in ntfs_truncate()
2519 	/* If the above resize failed, this must be an attribute extension. */  in ntfs_truncate()
2534 	 * Not enough space in the mft record, try to make the attribute  in ntfs_truncate()
2542 	 * permitted for this attribute type or there not being enough space,  in ntfs_truncate()
2546 		ntfs_error(vol->sb, "Cannot truncate inode 0x%lx, attribute "  in ntfs_truncate()
2548 				"resident to non-resident attribute failed "  in ntfs_truncate()
2558 				"disk for the non-resident attribute value.  "  in ntfs_truncate()
2561 		ntfs_error(vol->sb, "This attribute type may not be "  in ntfs_truncate()
2571 	 * Both the attribute list attribute and the standard information  in ntfs_truncate()
2572 	 * attribute must remain in the base inode.  Thus, if this is one of  in ntfs_truncate()
2585 	// TODO: Attempt to move this attribute to an extent mft record, but  in ntfs_truncate()
2586 	// only if it is not already the only attribute in an mft record in  in ntfs_truncate()
2602 			 * This attribute has multiple extents.  Not yet  in ntfs_truncate()
2606 					"attribute type 0x%x, because the "  in ntfs_truncate()
2607 					"attribute is highly fragmented (it "  in ntfs_truncate()
2659 			 * attribute truncate case.  To do this, we simply drop  in ntfs_truncate()
2695 	 * longer valid, we cannot resize the attribute record or build the  in ntfs_truncate()
2702 				"restore attribute search context" :  in ntfs_truncate()
2703 				"truncate attribute runlist",  in ntfs_truncate()
2712 				"attribute type 0x%x, because determining the "  in ntfs_truncate()
2720 	 * Shrink the attribute record for the new mapping pairs array.  Note,  in ntfs_truncate()
2721 	 * this cannot fail since we are making the attribute smaller thus by  in ntfs_truncate()
2729 	 * Generate the mapping pairs array directly into the attribute record.  in ntfs_truncate()
2736 				"attribute type 0x%x, because building the "  in ntfs_truncate()
2852  * ntfs_setattr - called from notify_change() when an attribute is being changed
2951 	 * Dirty attribute inodes are written via their real inodes so just  in __ntfs_write_inode()
2966 	/* Update the access times in the standard information attribute. */  in __ntfs_write_inode()
3009 	 * If we just modified the standard information attribute we need to  in __ntfs_write_inode()