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Commit c3695331 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs 

Pull UDF fixes and a reiserfs fix from Jan Kara:
 "A couple of udf fixes (most notably a bug in parsing UDF partitions
  which led to inability to mount recent Windows installation media) and
  a reiserfs fix for handling kstrdup failure"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  reiserfs: check kstrdup failure
  udf: Use correct partition reference number for metadata
  udf: Use IS_ERR when loading metadata mirror file entry
  udf: Don't BUG on missing metadata partition descriptor
parents 9af1f5d8 b9d8905e

fs/reiserfs/super.c

+7 −2
Original line number Diff line number Diff line
@@ -1393,7 +1393,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg) 
	unsigned long safe_mask = 0;

	unsigned int commit_max_age = (unsigned int)-1;

	struct reiserfs_journal *journal = SB_JOURNAL(s);

	char *new_opts = kstrdup(arg, GFP_KERNEL);

	char *new_opts;

	int err;

	char *qf_names[REISERFS_MAXQUOTAS];

	unsigned int qfmt = 0;
@@ -1401,6 +1401,10 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg) 
	int i;

#endif



	new_opts = kstrdup(arg, GFP_KERNEL);

	if (arg && !new_opts)

		return -ENOMEM;



	sync_filesystem(s);

	reiserfs_write_lock(s);
@@ -1546,6 +1550,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg) 
	}



out_ok_unlocked:

	if (new_opts)

		replace_mount_options(s, new_opts);

	return 0;

fs/udf/partition.c

+9 −4
Original line number Diff line number Diff line
@@ -295,7 +295,8 @@ static uint32_t udf_try_read_meta(struct inode *inode, uint32_t block, 
		map = &UDF_SB(sb)->s_partmaps[partition];

		/* map to sparable/physical partition desc */

		phyblock = udf_get_pblock(sb, eloc.logicalBlockNum,

			map->s_partition_num, ext_offset + offset);

			map->s_type_specific.s_metadata.s_phys_partition_ref,

			ext_offset + offset);

	}



	brelse(epos.bh);
@@ -317,14 +318,18 @@ uint32_t udf_get_pblock_meta25(struct super_block *sb, uint32_t block, 
	mdata = &map->s_type_specific.s_metadata;

	inode = mdata->s_metadata_fe ? : mdata->s_mirror_fe;



	/* We shouldn't mount such media... */

	BUG_ON(!inode);

	if (!inode)

		return 0xFFFFFFFF;



	retblk = udf_try_read_meta(inode, block, partition, offset);

	if (retblk == 0xFFFFFFFF && mdata->s_metadata_fe) {

		udf_warn(sb, "error reading from METADATA, trying to read from MIRROR\n");

		if (!(mdata->s_flags & MF_MIRROR_FE_LOADED)) {

			mdata->s_mirror_fe = udf_find_metadata_inode_efe(sb,

				mdata->s_mirror_file_loc, map->s_partition_num);

				mdata->s_mirror_file_loc,

				mdata->s_phys_partition_ref);

			if (IS_ERR(mdata->s_mirror_fe))

				mdata->s_mirror_fe = NULL;

			mdata->s_flags |= MF_MIRROR_FE_LOADED;

		}

fs/udf/super.c

+12 −10
Original line number Diff line number Diff line
@@ -951,13 +951,13 @@ static int udf_load_pvoldesc(struct super_block *sb, sector_t block) 
}



struct inode *udf_find_metadata_inode_efe(struct super_block *sb,

					u32 meta_file_loc, u32 partition_num)

					u32 meta_file_loc, u32 partition_ref)

{

	struct kernel_lb_addr addr;

	struct inode *metadata_fe;



	addr.logicalBlockNum = meta_file_loc;

	addr.partitionReferenceNum = partition_num;

	addr.partitionReferenceNum = partition_ref;



	metadata_fe = udf_iget_special(sb, &addr);
@@ -974,7 +974,8 @@ struct inode *udf_find_metadata_inode_efe(struct super_block *sb, 
	return metadata_fe;

}



static int udf_load_metadata_files(struct super_block *sb, int partition)

static int udf_load_metadata_files(struct super_block *sb, int partition,

				   int type1_index)

{

	struct udf_sb_info *sbi = UDF_SB(sb);

	struct udf_part_map *map;
@@ -984,20 +985,21 @@ static int udf_load_metadata_files(struct super_block *sb, int partition) 


	map = &sbi->s_partmaps[partition];

	mdata = &map->s_type_specific.s_metadata;

	mdata->s_phys_partition_ref = type1_index;



	/* metadata address */

	udf_debug("Metadata file location: block = %d part = %d\n",

		  mdata->s_meta_file_loc, map->s_partition_num);

		  mdata->s_meta_file_loc, mdata->s_phys_partition_ref);



	fe = udf_find_metadata_inode_efe(sb, mdata->s_meta_file_loc,

					 map->s_partition_num);

					 mdata->s_phys_partition_ref);

	if (IS_ERR(fe)) {

		/* mirror file entry */

		udf_debug("Mirror metadata file location: block = %d part = %d\n",

			  mdata->s_mirror_file_loc, map->s_partition_num);

			  mdata->s_mirror_file_loc, mdata->s_phys_partition_ref);



		fe = udf_find_metadata_inode_efe(sb, mdata->s_mirror_file_loc,

						 map->s_partition_num);

						 mdata->s_phys_partition_ref);



		if (IS_ERR(fe)) {

			udf_err(sb, "Both metadata and mirror metadata inode efe can not found\n");
@@ -1015,7 +1017,7 @@ static int udf_load_metadata_files(struct super_block *sb, int partition) 
	*/

	if (mdata->s_bitmap_file_loc != 0xFFFFFFFF) {

		addr.logicalBlockNum = mdata->s_bitmap_file_loc;

		addr.partitionReferenceNum = map->s_partition_num;

		addr.partitionReferenceNum = mdata->s_phys_partition_ref;



		udf_debug("Bitmap file location: block = %d part = %d\n",

			  addr.logicalBlockNum, addr.partitionReferenceNum);
@@ -1283,7 +1285,7 @@ static int udf_load_partdesc(struct super_block *sb, sector_t block) 
	p = (struct partitionDesc *)bh->b_data;

	partitionNumber = le16_to_cpu(p->partitionNumber);



	/* First scan for TYPE1, SPARABLE and METADATA partitions */

	/* First scan for TYPE1 and SPARABLE partitions */

	for (i = 0; i < sbi->s_partitions; i++) {

		map = &sbi->s_partmaps[i];

		udf_debug("Searching map: (%d == %d)\n",
@@ -1333,7 +1335,7 @@ static int udf_load_partdesc(struct super_block *sb, sector_t block) 
		goto out_bh;



	if (map->s_partition_type == UDF_METADATA_MAP25) {

		ret = udf_load_metadata_files(sb, i);

		ret = udf_load_metadata_files(sb, i, type1_idx);

		if (ret < 0) {

			udf_err(sb, "error loading MetaData partition map %d\n",

				i);

fs/udf/udf_sb.h

+5 −0
Original line number Diff line number Diff line
@@ -61,6 +61,11 @@ struct udf_meta_data { 
	__u32	s_bitmap_file_loc;

	__u32	s_alloc_unit_size;

	__u16	s_align_unit_size;

	/*

	 * Partition Reference Number of the associated physical / sparable

	 * partition

	 */

	__u16   s_phys_partition_ref;

	int	s_flags;

	struct inode *s_metadata_fe;

	struct inode *s_mirror_fe;