From e4ae4735f7c2da77db57ee090b9f513bfe80d285 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 18 Oct 2021 12:11:30 +0200 Subject: [PATCH] udf: use sb_bdev_nr_blocks Use the sb_bdev_nr_blocks helper instead of open coding it. Signed-off-by: Christoph Hellwig Reviewed-by: Kees Cook Reviewed-by: Jan Kara Link: https://lore.kernel.org/r/20211018101130.1838532-31-hch@lst.de Signed-off-by: Jens Axboe --- fs/udf/lowlevel.c | 5 ++--- fs/udf/super.c | 9 +++------ 2 files changed, 5 insertions(+), 9 deletions(-) diff --git a/fs/udf/lowlevel.c b/fs/udf/lowlevel.c index f1094cd..46d6971 100644 --- a/fs/udf/lowlevel.c +++ b/fs/udf/lowlevel.c @@ -47,8 +47,7 @@ unsigned int udf_get_last_session(struct super_block *sb) unsigned long udf_get_last_block(struct super_block *sb) { - struct block_device *bdev = sb->s_bdev; - struct cdrom_device_info *cdi = disk_to_cdi(bdev->bd_disk); + struct cdrom_device_info *cdi = disk_to_cdi(sb->s_bdev->bd_disk); unsigned long lblock = 0; /* @@ -56,7 +55,7 @@ unsigned long udf_get_last_block(struct super_block *sb) * Try using the device size... */ if (!cdi || cdrom_get_last_written(cdi, &lblock) || lblock == 0) - lblock = i_size_read(bdev->bd_inode) >> sb->s_blocksize_bits; + lblock = sb_bdev_nr_blocks(sb); if (lblock) return lblock - 1; diff --git a/fs/udf/super.c b/fs/udf/super.c index b2d7c57..34247fb 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -1175,8 +1175,7 @@ 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 = i_size_read(sb->s_bdev->bd_inode) >> - sb->s_blocksize_bits; + sector_t blocks = sb_bdev_nr_blocks(sb); udf_find_vat_block(sb, p_index, type1_index, sbi->s_last_block); if (!sbi->s_vat_inode && @@ -1838,8 +1837,7 @@ static int udf_check_anchor_block(struct super_block *sb, sector_t block, int ret; if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV) && - udf_fixed_to_variable(block) >= - i_size_read(sb->s_bdev->bd_inode) >> sb->s_blocksize_bits) + udf_fixed_to_variable(block) >= sb_bdev_nr_blocks(sb)) return -EAGAIN; bh = udf_read_tagged(sb, block, block, &ident); @@ -1901,8 +1899,7 @@ 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] >= i_size_read(sb->s_bdev->bd_inode) >> - sb->s_blocksize_bits) + if (last[i] >= sb_bdev_nr_blocks(sb)) continue; ret = udf_check_anchor_block(sb, last[i], fileset); if (ret != -EAGAIN) { -- 2.7.4