Commit 23bcda11 authored by Fabian Frederick's avatar Fabian Frederick Committed by Jan Kara
Browse files

udf: atomically read inode size 



See i_size_read() comments in include/linux/fs.h

Signed-off-by: default avatarFabian Frederick <fabf@skynet.be>
Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent 54bb60d5

fs/udf/lowlevel.c

+1 −1
Original line number Diff line number Diff line
@@ -58,7 +58,7 @@ unsigned long udf_get_last_block(struct super_block *sb) 
	 */

	if (ioctl_by_bdev(bdev, CDROM_LAST_WRITTEN, (unsigned long) &lblock) ||

	    lblock == 0)

		lblock = bdev->bd_inode->i_size >> sb->s_blocksize_bits;

		lblock = i_size_read(bdev->bd_inode) >> sb->s_blocksize_bits;



	if (lblock)

		return lblock - 1;

fs/udf/super.c

+4 −3
Original line number Diff line number Diff line
@@ -1213,7 +1213,8 @@ static int udf_load_vat(struct super_block *sb, int p_index, int type1_index) 
	struct udf_inode_info *vati;

	uint32_t pos;

	struct virtualAllocationTable20 *vat20;

	sector_t blocks = sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits;

	sector_t blocks = i_size_read(sb->s_bdev->bd_inode) >>

			  sb->s_blocksize_bits;



	udf_find_vat_block(sb, p_index, type1_index, sbi->s_last_block);

	if (!sbi->s_vat_inode &&
@@ -1803,7 +1804,7 @@ static int udf_check_anchor_block(struct super_block *sb, sector_t block, 


	if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV) &&

	    udf_fixed_to_variable(block) >=

	    sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits)

	    i_size_read(sb->s_bdev->bd_inode) >> sb->s_blocksize_bits)

		return -EAGAIN;



	bh = udf_read_tagged(sb, block, block, &ident);
@@ -1865,7 +1866,7 @@ static int udf_scan_anchors(struct super_block *sb, sector_t *lastblock, 
		last[last_count++] = *lastblock - 152;



	for (i = 0; i < last_count; i++) {

		if (last[i] >= sb->s_bdev->bd_inode->i_size >>

		if (last[i] >= i_size_read(sb->s_bdev->bd_inode) >>

				sb->s_blocksize_bits)

			continue;

		ret = udf_check_anchor_block(sb, last[i], fileset);