Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6:
  fat: Fix statfs->f_namelen
  fat: Replace all printk with fat_msg()
  fat: Add fat_msg() function for preformated FAT messages
  fat: Convert fat_fs_error to use %pV
  fat: Fix possible null deref in fat_cache_add()
  fat: use new setup() for ->dir_ops too

fs/fat/cache.c

@@ -151,6 +151,13 @@ static void fat_cache_add(struct inode *inode, struct fat_cache_id *new)
 			spin_unlock(&MSDOS_I(inode)->cache_lru_lock);
 
 			tmp = fat_cache_alloc(inode);
+			if (!tmp) {
+				spin_lock(&MSDOS_I(inode)->cache_lru_lock);
+				MSDOS_I(inode)->nr_caches--;
+				spin_unlock(&MSDOS_I(inode)->cache_lru_lock);
+				return;
+			}
+
 			spin_lock(&MSDOS_I(inode)->cache_lru_lock);
 			cache = fat_cache_merge(inode, new);
 			if (cache != NULL) {

fs/fat/dir.c

@@ -98,7 +98,7 @@ static int fat__get_entry(struct inode *dir, loff_t *pos,
 
 	*bh = sb_bread(sb, phys);
 	if (*bh == NULL) {
-		printk(KERN_ERR "FAT: Directory bread(block %llu) failed\n",
+		fat_msg(sb, KERN_ERR, "Directory bread(block %llu) failed",
 		       (llu)phys);
 		/* skip this block */
 		*pos = (iblock + 1) << sb->s_blocksize_bits;
@@ -136,9 +136,10 @@ static inline int fat_get_entry(struct inode *dir, loff_t *pos,
  * but ignore that right now.
  * Ahem... Stack smashing in ring 0 isn't fun. Fixed.
  */
-static int uni16_to_x8(unsigned char *ascii, const wchar_t *uni, int len,
-		       int uni_xlate, struct nls_table *nls)
+static int uni16_to_x8(struct super_block *sb, unsigned char *ascii,
+		       const wchar_t *uni, int len, struct nls_table *nls)
 {
+	int uni_xlate = MSDOS_SB(sb)->options.unicode_xlate;
 	const wchar_t *ip;
 	wchar_t ec;
 	unsigned char *op;
@@ -166,23 +167,23 @@ static int uni16_to_x8(unsigned char *ascii, const wchar_t *uni, int len,
 	}
 
 	if (unlikely(*ip)) {
-		printk(KERN_WARNING "FAT: filename was truncated while "
-		       "converting.");
+		fat_msg(sb, KERN_WARNING, "filename was truncated while "
+			"converting.");
 	}
 
 	*op = 0;
 	return (op - ascii);
 }
 
-static inline int fat_uni_to_x8(struct msdos_sb_info *sbi, const wchar_t *uni,
+static inline int fat_uni_to_x8(struct super_block *sb, const wchar_t *uni,
 				unsigned char *buf, int size)
 {
+	struct msdos_sb_info *sbi = MSDOS_SB(sb);
 	if (sbi->options.utf8)
 		return utf16s_to_utf8s(uni, FAT_MAX_UNI_CHARS,
 				UTF16_HOST_ENDIAN, buf, size);
 	else
-		return uni16_to_x8(buf, uni, size, sbi->options.unicode_xlate,
-				   sbi->nls_io);
+		return uni16_to_x8(sb, buf, uni, size, sbi->nls_io);
 }
 
 static inline int
@@ -419,7 +420,7 @@ int fat_search_long(struct inode *inode, const unsigned char *name,
 
 		/* Compare shortname */
 		bufuname[last_u] = 0x0000;
-		len = fat_uni_to_x8(sbi, bufuname, bufname, sizeof(bufname));
+		len = fat_uni_to_x8(sb, bufuname, bufname, sizeof(bufname));
 		if (fat_name_match(sbi, name, name_len, bufname, len))
 			goto found;
 
@@ -428,7 +429,7 @@ int fat_search_long(struct inode *inode, const unsigned char *name,
 			int size = PATH_MAX - FAT_MAX_UNI_SIZE;
 
 			/* Compare longname */
-			len = fat_uni_to_x8(sbi, unicode, longname, size);
+			len = fat_uni_to_x8(sb, unicode, longname, size);
 			if (fat_name_match(sbi, name, name_len, longname, len))
 				goto found;
 		}
@@ -545,7 +546,7 @@ static int __fat_readdir(struct inode *inode, struct file *filp, void *dirent,
 		if (nr_slots) {
 			void *longname = unicode + FAT_MAX_UNI_CHARS;
 			int size = PATH_MAX - FAT_MAX_UNI_SIZE;
-			int len = fat_uni_to_x8(sbi, unicode, longname, size);
+			int len = fat_uni_to_x8(sb, unicode, longname, size);
 
 			fill_name = longname;
 			fill_len = len;
@@ -621,7 +622,7 @@ static int __fat_readdir(struct inode *inode, struct file *filp, void *dirent,
 
 	if (isvfat) {
 		bufuname[j] = 0x0000;
-		i = fat_uni_to_x8(sbi, bufuname, bufname, sizeof(bufname));
+		i = fat_uni_to_x8(sb, bufuname, bufname, sizeof(bufname));
 	}
 	if (nr_slots) {
 		/* hack for fat_ioctl_filldir() */
@@ -979,6 +980,7 @@ static int __fat_remove_entries(struct inode *dir, loff_t pos, int nr_slots)
 
 int fat_remove_entries(struct inode *dir, struct fat_slot_info *sinfo)
 {
+	struct super_block *sb = dir->i_sb;
 	struct msdos_dir_entry *de;
 	struct buffer_head *bh;
 	int err = 0, nr_slots;
@@ -1013,8 +1015,8 @@ int fat_remove_entries(struct inode *dir, struct fat_slot_info *sinfo)
 		 */
 		err = __fat_remove_entries(dir, sinfo->slot_off, nr_slots);
 		if (err) {
-			printk(KERN_WARNING
-			       "FAT: Couldn't remove the long name slots\n");
+			fat_msg(sb, KERN_WARNING,
+			       "Couldn't remove the long name slots");
 		}
 	}
 
@@ -1265,7 +1267,7 @@ int fat_add_entries(struct inode *dir, void *slots, int nr_slots,
 		if (sbi->fat_bits != 32)
 			goto error;
 	} else if (MSDOS_I(dir)->i_start == 0) {
-		printk(KERN_ERR "FAT: Corrupted directory (i_pos %lld)\n",
+		fat_msg(sb, KERN_ERR, "Corrupted directory (i_pos %lld)",
 		       MSDOS_I(dir)->i_pos);
 		err = -EIO;
 		goto error;

fs/fat/fat.h

@@ -319,19 +319,20 @@ extern struct inode *fat_build_inode(struct super_block *sb,
 			struct msdos_dir_entry *de, loff_t i_pos);
 extern int fat_sync_inode(struct inode *inode);
 extern int fat_fill_super(struct super_block *sb, void *data, int silent,
-			const struct inode_operations *fs_dir_inode_ops,
-			int isvfat, void (*setup)(struct super_block *));
+			  int isvfat, void (*setup)(struct super_block *));
 
 extern int fat_flush_inodes(struct super_block *sb, struct inode *i1,
 		            struct inode *i2);
 /* fat/misc.c */
 extern void
-__fat_fs_error(struct super_block *s, int report, const char *fmt, ...)
+__fat_fs_error(struct super_block *sb, int report, const char *fmt, ...)
+	__attribute__ ((format (printf, 3, 4))) __cold;
+#define fat_fs_error(sb, fmt, args...)		\
+	__fat_fs_error(sb, 1, fmt , ## args)
+#define fat_fs_error_ratelimit(sb, fmt, args...) \
+	__fat_fs_error(sb, __ratelimit(&MSDOS_SB(sb)->ratelimit), fmt , ## args)
+void fat_msg(struct super_block *sb, const char *level, const char *fmt, ...)
 	__attribute__ ((format (printf, 3, 4))) __cold;
-#define fat_fs_error(s, fmt, args...)		\
-	__fat_fs_error(s, 1, fmt , ## args)
-#define fat_fs_error_ratelimit(s, fmt, args...) \
-	__fat_fs_error(s, __ratelimit(&MSDOS_SB(s)->ratelimit), fmt , ## args)
 extern int fat_clusters_flush(struct super_block *sb);
 extern int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster);
 extern void fat_time_fat2unix(struct msdos_sb_info *sbi, struct timespec *ts,

fs/fat/fatent.c

@@ -95,7 +95,7 @@ static int fat12_ent_bread(struct super_block *sb, struct fat_entry *fatent,
 err_brelse:
 	brelse(bhs[0]);
 err:
-	printk(KERN_ERR "FAT: FAT read failed (blocknr %llu)\n", (llu)blocknr);
+	fat_msg(sb, KERN_ERR, "FAT read failed (blocknr %llu)", (llu)blocknr);
 	return -EIO;
 }
 
@@ -108,7 +108,7 @@ static int fat_ent_bread(struct super_block *sb, struct fat_entry *fatent,
 	fatent->fat_inode = MSDOS_SB(sb)->fat_inode;
 	fatent->bhs[0] = sb_bread(sb, blocknr);
 	if (!fatent->bhs[0]) {
-		printk(KERN_ERR "FAT: FAT read failed (blocknr %llu)\n",
+		fat_msg(sb, KERN_ERR, "FAT read failed (blocknr %llu)",
 		       (llu)blocknr);
 		return -EIO;
 	}

fs/fat/inode.c

@@ -581,7 +581,8 @@ static int fat_statfs(struct dentry *dentry, struct kstatfs *buf)
 	buf->f_bavail = sbi->free_clusters;
 	buf->f_fsid.val[0] = (u32)id;
 	buf->f_fsid.val[1] = (u32)(id >> 32);
-	buf->f_namelen = sbi->options.isvfat ? FAT_LFN_LEN : 12;
+	buf->f_namelen =
+		(sbi->options.isvfat ? FAT_LFN_LEN : 12) * NLS_MAX_CHARSET_SIZE;
 
 	return 0;
 }
@@ -619,8 +620,8 @@ static int __fat_write_inode(struct inode *inode, int wait)
 
 	bh = sb_bread(sb, i_pos >> sbi->dir_per_block_bits);
 	if (!bh) {
-		printk(KERN_ERR "FAT: unable to read inode block "
-		       "for updating (i_pos %lld)\n", i_pos);
+		fat_msg(sb, KERN_ERR, "unable to read inode block "
+		       "for updating (i_pos %lld)", i_pos);
 		return -EIO;
 	}
 	spin_lock(&sbi->inode_hash_lock);
@@ -976,8 +977,8 @@ static const match_table_t vfat_tokens = {
 	{Opt_err, NULL}
 };
 
-static int parse_options(char *options, int is_vfat, int silent, int *debug,
-			 struct fat_mount_options *opts)
+static int parse_options(struct super_block *sb, char *options, int is_vfat,
+			 int silent, int *debug, struct fat_mount_options *opts)
 {
 	char *p;
 	substring_t args[MAX_OPT_ARGS];
@@ -1168,15 +1169,15 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug,
 
 		/* obsolete mount options */
 		case Opt_obsolate:
-			printk(KERN_INFO "FAT: \"%s\" option is obsolete, "
-			       "not supported now\n", p);
+			fat_msg(sb, KERN_INFO, "\"%s\" option is obsolete, "
+			       "not supported now", p);
 			break;
 		/* unknown option */
 		default:
 			if (!silent) {
-				printk(KERN_ERR
-				       "FAT: Unrecognized mount option \"%s\" "
-				       "or missing value\n", p);
+				fat_msg(sb, KERN_ERR,
+				       "Unrecognized mount option \"%s\" "
+				       "or missing value", p);
 			}
 			return -EINVAL;
 		}
@@ -1185,7 +1186,7 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug,
 out:
 	/* UTF-8 doesn't provide FAT semantics */
 	if (!strcmp(opts->iocharset, "utf8")) {
-		printk(KERN_ERR "FAT: utf8 is not a recommended IO charset"
+		fat_msg(sb, KERN_ERR, "utf8 is not a recommended IO charset"
 		       " for FAT filesystems, filesystem will be "
 		       "case sensitive!\n");
 	}
@@ -1238,8 +1239,7 @@ static int fat_read_root(struct inode *inode)
 /*
  * Read the super block of an MS-DOS FS.
  */
-int fat_fill_super(struct super_block *sb, void *data, int silent,
-		   const struct inode_operations *fs_dir_inode_ops, int isvfat,
+int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
 		   void (*setup)(struct super_block *))
 {
 	struct inode *root_inode = NULL, *fat_inode = NULL;
@@ -1268,11 +1268,10 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	sb->s_magic = MSDOS_SUPER_MAGIC;
 	sb->s_op = &fat_sops;
 	sb->s_export_op = &fat_export_ops;
-	sbi->dir_ops = fs_dir_inode_ops;
 	ratelimit_state_init(&sbi->ratelimit, DEFAULT_RATELIMIT_INTERVAL,
 			     DEFAULT_RATELIMIT_BURST);
 
-	error = parse_options(data, isvfat, silent, &debug, &sbi->options);
+	error = parse_options(sb, data, isvfat, silent, &debug, &sbi->options);
 	if (error)
 		goto out_fail;
 
@@ -1282,20 +1281,20 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	sb_min_blocksize(sb, 512);
 	bh = sb_bread(sb, 0);
 	if (bh == NULL) {
-		printk(KERN_ERR "FAT: unable to read boot sector\n");
+		fat_msg(sb, KERN_ERR, "unable to read boot sector");
 		goto out_fail;
 	}
 
 	b = (struct fat_boot_sector *) bh->b_data;
 	if (!b->reserved) {
 		if (!silent)
-			printk(KERN_ERR "FAT: bogus number of reserved sectors\n");
+			fat_msg(sb, KERN_ERR, "bogus number of reserved sectors");
 		brelse(bh);
 		goto out_invalid;
 	}
 	if (!b->fats) {
 		if (!silent)
-			printk(KERN_ERR "FAT: bogus number of FAT structure\n");
+			fat_msg(sb, KERN_ERR, "bogus number of FAT structure");
 		brelse(bh);
 		goto out_invalid;
 	}
@@ -1308,7 +1307,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	media = b->media;
 	if (!fat_valid_media(media)) {
 		if (!silent)
-			printk(KERN_ERR "FAT: invalid media value (0x%02x)\n",
+			fat_msg(sb, KERN_ERR, "invalid media value (0x%02x)",
 			       media);
 		brelse(bh);
 		goto out_invalid;
@@ -1318,7 +1317,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	    || (logical_sector_size < 512)
 	    || (logical_sector_size > 4096)) {
 		if (!silent)
-			printk(KERN_ERR "FAT: bogus logical sector size %u\n",
+			fat_msg(sb, KERN_ERR, "bogus logical sector size %u",
 			       logical_sector_size);
 		brelse(bh);
 		goto out_invalid;
@@ -1326,15 +1325,15 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	sbi->sec_per_clus = b->sec_per_clus;
 	if (!is_power_of_2(sbi->sec_per_clus)) {
 		if (!silent)
-			printk(KERN_ERR "FAT: bogus sectors per cluster %u\n",
+			fat_msg(sb, KERN_ERR, "bogus sectors per cluster %u",
 			       sbi->sec_per_clus);
 		brelse(bh);
 		goto out_invalid;
 	}
 
 	if (logical_sector_size < sb->s_blocksize) {
-		printk(KERN_ERR "FAT: logical sector size too small for device"
-		       " (logical sector size = %u)\n", logical_sector_size);
+		fat_msg(sb, KERN_ERR, "logical sector size too small for device"
+		       " (logical sector size = %u)", logical_sector_size);
 		brelse(bh);
 		goto out_fail;
 	}
@@ -1342,14 +1341,14 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 		brelse(bh);
 
 		if (!sb_set_blocksize(sb, logical_sector_size)) {
-			printk(KERN_ERR "FAT: unable to set blocksize %u\n",
+			fat_msg(sb, KERN_ERR, "unable to set blocksize %u",
 			       logical_sector_size);
 			goto out_fail;
 		}
 		bh = sb_bread(sb, 0);
 		if (bh == NULL) {
-			printk(KERN_ERR "FAT: unable to read boot sector"
-			       " (logical sector size = %lu)\n",
+			fat_msg(sb, KERN_ERR, "unable to read boot sector"
+			       " (logical sector size = %lu)",
 			       sb->s_blocksize);
 			goto out_fail;
 		}
@@ -1385,16 +1384,16 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 
 		fsinfo_bh = sb_bread(sb, sbi->fsinfo_sector);
 		if (fsinfo_bh == NULL) {
-			printk(KERN_ERR "FAT: bread failed, FSINFO block"
-			       " (sector = %lu)\n", sbi->fsinfo_sector);
+			fat_msg(sb, KERN_ERR, "bread failed, FSINFO block"
+			       " (sector = %lu)", sbi->fsinfo_sector);
 			brelse(bh);
 			goto out_fail;
 		}
 
 		fsinfo = (struct fat_boot_fsinfo *)fsinfo_bh->b_data;
 		if (!IS_FSINFO(fsinfo)) {
-			printk(KERN_WARNING "FAT: Invalid FSINFO signature: "
-			       "0x%08x, 0x%08x (sector = %lu)\n",
+			fat_msg(sb, KERN_WARNING, "Invalid FSINFO signature: "
+			       "0x%08x, 0x%08x (sector = %lu)",
 			       le32_to_cpu(fsinfo->signature1),
 			       le32_to_cpu(fsinfo->signature2),
 			       sbi->fsinfo_sector);
@@ -1415,8 +1414,8 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	sbi->dir_entries = get_unaligned_le16(&b->dir_entries);
 	if (sbi->dir_entries & (sbi->dir_per_block - 1)) {
 		if (!silent)
-			printk(KERN_ERR "FAT: bogus directroy-entries per block"
-			       " (%u)\n", sbi->dir_entries);
+			fat_msg(sb, KERN_ERR, "bogus directroy-entries per block"
+			       " (%u)", sbi->dir_entries);
 		brelse(bh);
 		goto out_invalid;
 	}
@@ -1438,7 +1437,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	total_clusters = min(total_clusters, fat_clusters - FAT_START_ENT);
 	if (total_clusters > MAX_FAT(sb)) {
 		if (!silent)
-			printk(KERN_ERR "FAT: count of clusters too big (%u)\n",
+			fat_msg(sb, KERN_ERR, "count of clusters too big (%u)",
 			       total_clusters);
 		brelse(bh);
 		goto out_invalid;
@@ -1471,7 +1470,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	sprintf(buf, "cp%d", sbi->options.codepage);
 	sbi->nls_disk = load_nls(buf);
 	if (!sbi->nls_disk) {
-		printk(KERN_ERR "FAT: codepage %s not found\n", buf);
+		fat_msg(sb, KERN_ERR, "codepage %s not found", buf);
 		goto out_fail;
 	}
 
@@ -1479,7 +1478,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	if (sbi->options.isvfat) {
 		sbi->nls_io = load_nls(sbi->options.iocharset);
 		if (!sbi->nls_io) {
-			printk(KERN_ERR "FAT: IO charset %s not found\n",
+			fat_msg(sb, KERN_ERR, "IO charset %s not found",
 			       sbi->options.iocharset);
 			goto out_fail;
 		}
@@ -1503,7 +1502,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	insert_inode_hash(root_inode);
 	sb->s_root = d_alloc_root(root_inode);
 	if (!sb->s_root) {
-		printk(KERN_ERR "FAT: get root inode failed\n");
+		fat_msg(sb, KERN_ERR, "get root inode failed");
 		goto out_fail;
 	}
 
@@ -1512,8 +1511,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 out_invalid:
 	error = -EINVAL;
 	if (!silent)
-		printk(KERN_INFO "VFS: Can't find a valid FAT filesystem"
-		       " on dev %s.\n", sb->s_id);
+		fat_msg(sb, KERN_INFO, "Can't find a valid FAT filesystem");
 
 out_fail:
 	if (fat_inode)

fs/fat/misc.c

@@ -20,30 +20,46 @@
  * In case the file system is remounted read-only, it can be made writable
  * again by remounting it.
  */
-void __fat_fs_error(struct super_block *s, int report, const char *fmt, ...)
+void __fat_fs_error(struct super_block *sb, int report, const char *fmt, ...)
 {
-	struct fat_mount_options *opts = &MSDOS_SB(s)->options;
+	struct fat_mount_options *opts = &MSDOS_SB(sb)->options;
 	va_list args;
+	struct va_format vaf;
 
 	if (report) {
-		printk(KERN_ERR "FAT: Filesystem error (dev %s)\n", s->s_id);
-
-		printk(KERN_ERR "    ");
 		va_start(args, fmt);
-		vprintk(fmt, args);
+		vaf.fmt = fmt;
+		vaf.va = &args;
+		printk(KERN_ERR "FAT-fs (%s): error, %pV\n", sb->s_id, &vaf);
 		va_end(args);
-		printk("\n");
 	}
 
 	if (opts->errors == FAT_ERRORS_PANIC)
-		panic("FAT: fs panic from previous error\n");
-	else if (opts->errors == FAT_ERRORS_RO && !(s->s_flags & MS_RDONLY)) {
-		s->s_flags |= MS_RDONLY;
-		printk(KERN_ERR "FAT: Filesystem has been set read-only\n");
+		panic("FAT-fs (%s): fs panic from previous error\n", sb->s_id);
+	else if (opts->errors == FAT_ERRORS_RO && !(sb->s_flags & MS_RDONLY)) {
+		sb->s_flags |= MS_RDONLY;
+		printk(KERN_ERR "FAT-fs (%s): Filesystem has been "
+				"set read-only\n", sb->s_id);
 	}
 }
 EXPORT_SYMBOL_GPL(__fat_fs_error);
 
+/**
+ * fat_msg() - print preformated FAT specific messages. Every thing what is
+ * not fat_fs_error() should be fat_msg().
+ */
+void fat_msg(struct super_block *sb, const char *level, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	va_start(args, fmt);
+	vaf.fmt = fmt;
+	vaf.va = &args;
+	printk("%sFAT-fs (%s): %pV\n", level, sb->s_id, &vaf);
+	va_end(args);
+}
+
 /* Flushes the number of free clusters on FAT32 */
 /* XXX: Need to write one per FSINFO block.  Currently only writes 1 */
 int fat_clusters_flush(struct super_block *sb)
@@ -57,15 +73,15 @@ int fat_clusters_flush(struct super_block *sb)
 
 	bh = sb_bread(sb, sbi->fsinfo_sector);
 	if (bh == NULL) {
-		printk(KERN_ERR "FAT: bread failed in fat_clusters_flush\n");
+		fat_msg(sb, KERN_ERR, "bread failed in fat_clusters_flush");
 		return -EIO;
 	}
 
 	fsinfo = (struct fat_boot_fsinfo *)bh->b_data;
 	/* Sanity check */
 	if (!IS_FSINFO(fsinfo)) {
-		printk(KERN_ERR "FAT: Invalid FSINFO signature: "
-		       "0x%08x, 0x%08x (sector = %lu)\n",
+		fat_msg(sb, KERN_ERR, "Invalid FSINFO signature: "
+		       "0x%08x, 0x%08x (sector = %lu)",
 		       le32_to_cpu(fsinfo->signature1),
 		       le32_to_cpu(fsinfo->signature2),
 		       sbi->fsinfo_sector);

fs/fat/namei_msdos.c

@@ -659,14 +659,14 @@ static const struct inode_operations msdos_dir_inode_operations = {
 
 static void setup(struct super_block *sb)
 {
+	MSDOS_SB(sb)->dir_ops = &msdos_dir_inode_operations;
 	sb->s_d_op = &msdos_dentry_operations;
 	sb->s_flags |= MS_NOATIME;
 }
 
 static int msdos_fill_super(struct super_block *sb, void *data, int silent)
 {
-	return fat_fill_super(sb, data, silent, &msdos_dir_inode_operations,
-			     0, setup);
+	return fat_fill_super(sb, data, silent, 0, setup);
 }
 
 static struct dentry *msdos_mount(struct file_system_type *fs_type,

fs/fat/namei_vfat.c

@@ -1065,6 +1065,7 @@ static const struct inode_operations vfat_dir_inode_operations = {
 
 static void setup(struct super_block *sb)
 {
+	MSDOS_SB(sb)->dir_ops = &vfat_dir_inode_operations;
 	if (MSDOS_SB(sb)->options.name_check != 's')
 		sb->s_d_op = &vfat_ci_dentry_ops;
 	else
@@ -1073,8 +1074,7 @@ static void setup(struct super_block *sb)
 
 static int vfat_fill_super(struct super_block *sb, void *data, int silent)
 {
-	return fat_fill_super(sb, data, silent, &vfat_dir_inode_operations,
-			     1, setup);
+	return fat_fill_super(sb, data, silent, 1, setup);
 }
 
 static struct dentry *vfat_mount(struct file_system_type *fs_type,