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block: switch bios to blk_status_t

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Replace bi_error with a new bi_status to allow for a clear conversion.
Note that device mapper overloaded bi_error with a private value, which
we'll have to keep arround at least for now and thus propagate to a
proper blk_status_t value.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig
2017-06-03 09:38:06 +02:00
committed by Jens Axboe
parent fc17b6534e
commit 4e4cbee93d
106 changed files with 625 additions and 603 deletions
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13
fs/ext4/page-io.c
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@@ -85,7 +85,7 @@ static void ext4_finish_bio(struct bio *bio)
}
#endif
if (bio->bi_error) {
if (bio->bi_status) {
SetPageError(page);
mapping_set_error(page->mapping, -EIO);
}
@@ -104,7 +104,7 @@ static void ext4_finish_bio(struct bio *bio)
continue;
}
clear_buffer_async_write(bh);
if (bio->bi_error)
if (bio->bi_status)
buffer_io_error(bh);
} while ((bh = bh->b_this_page) != head);
bit_spin_unlock(BH_Uptodate_Lock, &head->b_state);
@@ -303,24 +303,25 @@ static void ext4_end_bio(struct bio *bio)
bdevname(bio->bi_bdev, b),
(long long) bio->bi_iter.bi_sector,
(unsigned) bio_sectors(bio),
bio->bi_error)) {
bio->bi_status)) {
ext4_finish_bio(bio);
bio_put(bio);
return;
}
bio->bi_end_io = NULL;
if (bio->bi_error) {
if (bio->bi_status) {
struct inode *inode = io_end->inode;
ext4_warning(inode->i_sb, "I/O error %d writing to inode %lu "
"(offset %llu size %ld starting block %llu)",
bio->bi_error, inode->i_ino,
bio->bi_status, inode->i_ino,
(unsigned long long) io_end->offset,
(long) io_end->size,
(unsigned long long)
bi_sector >> (inode->i_blkbits - 9));
mapping_set_error(inode->i_mapping, bio->bi_error);
mapping_set_error(inode->i_mapping,
blk_status_to_errno(bio->bi_status));
}
if (io_end->flag & EXT4_IO_END_UNWRITTEN) {