Merge tag 'ntfs3_for_6.2' of https://github.com/Paragon-Software-Group/linux-ntfs3

Pull ntfs3 updates from Konstantin Komarov:

 - added mount options 'hidedotfiles', 'nocase' and 'windows_names'

 - fixed xfstests (tested on x86_64): generic/083 generic/263
   generic/307 generic/465

 - fix some logic errors

 - code refactoring and dead code removal

* tag 'ntfs3_for_6.2' of https://github.com/Paragon-Software-Group/linux-ntfs3: (61 commits)
  fs/ntfs3: Make if more readable
  fs/ntfs3: Improve checking of bad clusters
  fs/ntfs3: Fix wrong if in hdr_first_de
  fs/ntfs3: Use ALIGN kernel macro
  fs/ntfs3: Fix incorrect if in ntfs_set_acl_ex
  fs/ntfs3: Check fields while reading
  fs/ntfs3: Correct ntfs_check_for_free_space
  fs/ntfs3: Restore correct state after ENOSPC in attr_data_get_block
  fs/ntfs3: Changing locking in ntfs_rename
  fs/ntfs3: Fixing wrong logic in attr_set_size and ntfs_fallocate
  fs/ntfs3: atomic_open implementation
  fs/ntfs3: Fix wrong indentations
  fs/ntfs3: Change new sparse cluster processing
  fs/ntfs3: Fixing work with sparse clusters
  fs/ntfs3: Simplify ntfs_update_mftmirr function
  fs/ntfs3: Remove unused functions
  fs/ntfs3: Fix sparse problems
  fs/ntfs3: Add ntfs_bitmap_weight_le function and refactoring
  fs/ntfs3: Use _le variants of bitops functions
  fs/ntfs3: Add functions to modify LE bitmaps
  ...

1 files changed, 23 insertions, 39 deletions

diff --git a/fs/ntfs3/fslog.c b/fs/ntfs3/fslog.c
index 0d611a6c5511..c6eb371a3695 100644
--- a/fs/ntfs3/fslog.c
+++ b/fs/ntfs3/fslog.c
@@ -1132,7 +1132,7 @@ static int read_log_page(struct ntfs_log *log, u32 vbo,
 		return -EINVAL;
 
 	if (!*buffer) {
-		to_free = kmalloc(bytes, GFP_NOFS);
+		to_free = kmalloc(log->page_size, GFP_NOFS);
 		if (!to_free)
 			return -ENOMEM;
 		*buffer = to_free;
@@ -1180,10 +1180,7 @@ static int log_read_rst(struct ntfs_log *log, u32 l_size, bool first,
 			struct restart_info *info)
 {
 	u32 skip, vbo;
-	struct RESTART_HDR *r_page = kmalloc(DefaultLogPageSize, GFP_NOFS);
-
-	if (!r_page)
-		return -ENOMEM;
+	struct RESTART_HDR *r_page = NULL;
 
 	/* Determine which restart area we are looking for. */
 	if (first) {
@@ -1197,7 +1194,6 @@ static int log_read_rst(struct ntfs_log *log, u32 l_size, bool first,
 	/* Loop continuously until we succeed. */
 	for (; vbo < l_size; vbo = 2 * vbo + skip, skip = 0) {
 		bool usa_error;
-		u32 sys_page_size;
 		bool brst, bchk;
 		struct RESTART_AREA *ra;
 
@@ -1251,24 +1247,6 @@ static int log_read_rst(struct ntfs_log *log, u32 l_size, bool first,
 			goto check_result;
 		}
 
-		/* Read the entire restart area. */
-		sys_page_size = le32_to_cpu(r_page->sys_page_size);
-		if (DefaultLogPageSize != sys_page_size) {
-			kfree(r_page);
-			r_page = kzalloc(sys_page_size, GFP_NOFS);
-			if (!r_page)
-				return -ENOMEM;
-
-			if (read_log_page(log, vbo,
-					  (struct RECORD_PAGE_HDR **)&r_page,
-					  &usa_error)) {
-				/* Ignore any errors. */
-				kfree(r_page);
-				r_page = NULL;
-				continue;
-			}
-		}
-
 		if (is_client_area_valid(r_page, usa_error)) {
 			info->valid_page = true;
 			ra = Add2Ptr(r_page, le16_to_cpu(r_page->ra_off));
@@ -2727,6 +2705,9 @@ static inline bool check_attr(const struct MFT_REC *rec,
 			return false;
 		}
 
+		if (run_off > asize)
+			return false;
+
 		if (run_unpack(NULL, sbi, 0, svcn, evcn, svcn,
 			       Add2Ptr(attr, run_off), asize - run_off) < 0) {
 			return false;
@@ -3048,7 +3029,7 @@ static int do_action(struct ntfs_log *log, struct OPEN_ATTR_ENRTY *oe,
 	struct NEW_ATTRIBUTE_SIZES *new_sz;
 	struct ATTR_FILE_NAME *fname;
 	struct OpenAttr *oa, *oa2;
-	u32 nsize, t32, asize, used, esize, bmp_off, bmp_bits;
+	u32 nsize, t32, asize, used, esize, off, bits;
 	u16 id, id2;
 	u32 record_size = sbi->record_size;
 	u64 t64;
@@ -3635,30 +3616,28 @@ move_data:
 		break;
 
 	case SetBitsInNonresidentBitMap:
-		bmp_off =
-			le32_to_cpu(((struct BITMAP_RANGE *)data)->bitmap_off);
-		bmp_bits = le32_to_cpu(((struct BITMAP_RANGE *)data)->bits);
+		off = le32_to_cpu(((struct BITMAP_RANGE *)data)->bitmap_off);
+		bits = le32_to_cpu(((struct BITMAP_RANGE *)data)->bits);
 
-		if (cbo + (bmp_off + 7) / 8 > lco ||
-		    cbo + ((bmp_off + bmp_bits + 7) / 8) > lco) {
+		if (cbo + (off + 7) / 8 > lco ||
+		    cbo + ((off + bits + 7) / 8) > lco) {
 			goto dirty_vol;
 		}
 
-		__bitmap_set(Add2Ptr(buffer_le, roff), bmp_off, bmp_bits);
+		ntfs_bitmap_set_le(Add2Ptr(buffer_le, roff), off, bits);
 		a_dirty = true;
 		break;
 
 	case ClearBitsInNonresidentBitMap:
-		bmp_off =
-			le32_to_cpu(((struct BITMAP_RANGE *)data)->bitmap_off);
-		bmp_bits = le32_to_cpu(((struct BITMAP_RANGE *)data)->bits);
+		off = le32_to_cpu(((struct BITMAP_RANGE *)data)->bitmap_off);
+		bits = le32_to_cpu(((struct BITMAP_RANGE *)data)->bits);
 
-		if (cbo + (bmp_off + 7) / 8 > lco ||
-		    cbo + ((bmp_off + bmp_bits + 7) / 8) > lco) {
+		if (cbo + (off + 7) / 8 > lco ||
+		    cbo + ((off + bits + 7) / 8) > lco) {
 			goto dirty_vol;
 		}
 
-		__bitmap_clear(Add2Ptr(buffer_le, roff), bmp_off, bmp_bits);
+		ntfs_bitmap_clear_le(Add2Ptr(buffer_le, roff), off, bits);
 		a_dirty = true;
 		break;
 
@@ -4771,6 +4750,12 @@ fake_attr:
 		u16 roff = le16_to_cpu(attr->nres.run_off);
 		CLST svcn = le64_to_cpu(attr->nres.svcn);
 
+		if (roff > t32) {
+			kfree(oa->attr);
+			oa->attr = NULL;
+			goto fake_attr;
+		}
+
 		err = run_unpack(&oa->run0, sbi, inode->i_ino, svcn,
 				 le64_to_cpu(attr->nres.evcn), svcn,
 				 Add2Ptr(attr, roff), t32 - roff);
@@ -4839,8 +4824,7 @@ next_dirty_page_vcn:
 		goto out;
 	}
 	attr = oa->attr;
-	t64 = le64_to_cpu(attr->nres.alloc_size);
-	if (size > t64) {
+	if (size > le64_to_cpu(attr->nres.alloc_size)) {
 		attr->nres.valid_size = attr->nres.data_size =
 			attr->nres.alloc_size = cpu_to_le64(size);
 	}