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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
Download Patch File Download Diff File Expand all files Collapse all files
drivers/md/raid5.c
+11 -11
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@@ -2476,7 +2476,7 @@ static void raid5_end_read_request(struct bio * bi)
pr_debug("end_read_request %llu/%d, count: %d, error %d.\n",
(unsigned long long)sh->sector, i, atomic_read(&sh->count),
bi->bi_error);
bi->bi_status);
if (i == disks) {
bio_reset(bi);
BUG();
@@ -2496,7 +2496,7 @@ static void raid5_end_read_request(struct bio * bi)
s = sh->sector + rdev->new_data_offset;
else
s = sh->sector + rdev->data_offset;
if (!bi->bi_error) {
if (!bi->bi_status) {
set_bit(R5_UPTODATE, &sh->dev[i].flags);
if (test_bit(R5_ReadError, &sh->dev[i].flags)) {
/* Note that this cannot happen on a
@@ -2613,7 +2613,7 @@ static void raid5_end_write_request(struct bio *bi)
}
pr_debug("end_write_request %llu/%d, count %d, error: %d.\n",
(unsigned long long)sh->sector, i, atomic_read(&sh->count),
bi->bi_error);
bi->bi_status);
if (i == disks) {
bio_reset(bi);
BUG();
@@ -2621,14 +2621,14 @@ static void raid5_end_write_request(struct bio *bi)
}
if (replacement) {
if (bi->bi_error)
if (bi->bi_status)
md_error(conf->mddev, rdev);
else if (is_badblock(rdev, sh->sector,
STRIPE_SECTORS,
&first_bad, &bad_sectors))
set_bit(R5_MadeGoodRepl, &sh->dev[i].flags);
} else {
if (bi->bi_error) {
if (bi->bi_status) {
set_bit(STRIPE_DEGRADED, &sh->state);
set_bit(WriteErrorSeen, &rdev->flags);
set_bit(R5_WriteError, &sh->dev[i].flags);
@@ -2649,7 +2649,7 @@ static void raid5_end_write_request(struct bio *bi)
}
rdev_dec_pending(rdev, conf->mddev);
if (sh->batch_head && bi->bi_error && !replacement)
if (sh->batch_head && bi->bi_status && !replacement)
set_bit(STRIPE_BATCH_ERR, &sh->batch_head->state);
bio_reset(bi);
@@ -3381,7 +3381,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
sh->dev[i].sector + STRIPE_SECTORS) {
struct bio *nextbi = r5_next_bio(bi, sh->dev[i].sector);
bi->bi_error = -EIO;
bi->bi_status = BLK_STS_IOERR;
md_write_end(conf->mddev);
bio_endio(bi);
bi = nextbi;
@@ -3403,7 +3403,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
sh->dev[i].sector + STRIPE_SECTORS) {
struct bio *bi2 = r5_next_bio(bi, sh->dev[i].sector);
bi->bi_error = -EIO;
bi->bi_status = BLK_STS_IOERR;
md_write_end(conf->mddev);
bio_endio(bi);
bi = bi2;
@@ -3429,7 +3429,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
struct bio *nextbi =
r5_next_bio(bi, sh->dev[i].sector);
bi->bi_error = -EIO;
bi->bi_status = BLK_STS_IOERR;
bio_endio(bi);
bi = nextbi;
}
@@ -5144,7 +5144,7 @@ static void raid5_align_endio(struct bio *bi)
struct mddev *mddev;
struct r5conf *conf;
struct md_rdev *rdev;
int error = bi->bi_error;
blk_status_t error = bi->bi_status;
bio_put(bi);
@@ -5721,7 +5721,7 @@ static void raid5_make_request(struct mddev *mddev, struct bio * bi)
release_stripe_plug(mddev, sh);
} else {
/* cannot get stripe for read-ahead, just give-up */
bi->bi_error = -EIO;
bi->bi_status = BLK_STS_IOERR;
break;
}
}