#endif /* CONFIG_FAIL_MAKE_REQUEST */
-static inline bool bio_check_ro(struct bio *bio, struct block_device *part)
+static inline bool bio_check_ro(struct bio *bio)
{
- if (op_is_write(bio_op(bio)) && bdev_read_only(part)) {
+ if (op_is_write(bio_op(bio)) && bdev_read_only(bio->bi_bdev)) {
char b[BDEVNAME_SIZE];
if (op_is_flush(bio->bi_opf) && !bio_sectors(bio))
WARN_ONCE(1,
"Trying to write to read-only block-device %s (partno %d)\n",
- bio_devname(bio, b), part->bd_partno);
+ bio_devname(bio, b), bio->bi_bdev->bd_partno);
/* Older lvm-tools actually trigger this */
return false;
}
* This may well happen - the kernel calls bread() without checking the size of
* the device, e.g., when mounting a file system.
*/
-static inline int bio_check_eod(struct bio *bio, sector_t maxsector)
+static inline int bio_check_eod(struct bio *bio)
{
+ sector_t maxsector = bdev_nr_sectors(bio->bi_bdev);
unsigned int nr_sectors = bio_sectors(bio);
if (nr_sectors && maxsector &&
/*
* Remap block n of partition p to block n+start(p) of the disk.
*/
-static inline int blk_partition_remap(struct bio *bio)
+static int blk_partition_remap(struct bio *bio)
{
struct block_device *p = bio->bi_bdev;
- int ret = -EIO;
if (unlikely(should_fail_request(p, bio->bi_iter.bi_size)))
- goto out;
- if (unlikely(bio_check_ro(bio, p)))
- goto out;
-
+ return -EIO;
if (bio_sectors(bio)) {
- if (bio_check_eod(bio, bdev_nr_sectors(p)))
- goto out;
bio->bi_iter.bi_sector += p->bd_start_sect;
trace_block_bio_remap(bio, p->bd_dev,
bio->bi_iter.bi_sector -
p->bd_start_sect);
}
bio->bi_bdev = bdev_whole(p);
- ret = 0;
-out:
- return ret;
+ return 0;
}
/*
if (should_fail_bio(bio))
goto end_io;
-
- if (bio->bi_bdev->bd_partno) {
- if (unlikely(blk_partition_remap(bio)))
- goto end_io;
- } else {
- if (unlikely(bio_check_ro(bio, bdev_whole(bdev))))
- goto end_io;
- if (unlikely(bio_check_eod(bio, get_capacity(bdev->bd_disk))))
- goto end_io;
- }
+ if (unlikely(bio_check_ro(bio)))
+ goto end_io;
+ if (unlikely(bio_check_eod(bio)))
+ goto end_io;
+ if (bio->bi_bdev->bd_partno && unlikely(blk_partition_remap(bio)))
+ goto end_io;
/*
* Filter flush bio's early so that bio based drivers without flush