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Diffstat (limited to 'drivers/md/raid1.c')
-rw-r--r--drivers/md/raid1.c53
1 files changed, 26 insertions, 27 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index f80f1af61ce7..9aa7d1fb2bc1 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -255,9 +255,10 @@ static void call_bio_endio(struct r1bio *r1_bio)
done = 1;
if (!test_bit(R1BIO_Uptodate, &r1_bio->state))
- clear_bit(BIO_UPTODATE, &bio->bi_flags);
+ bio->bi_error = -EIO;
+
if (done) {
- bio_endio(bio, 0);
+ bio_endio(bio);
/*
* Wake up any possible resync thread that waits for the device
* to go idle.
@@ -312,9 +313,9 @@ static int find_bio_disk(struct r1bio *r1_bio, struct bio *bio)
return mirror;
}
-static void raid1_end_read_request(struct bio *bio, int error)
+static void raid1_end_read_request(struct bio *bio)
{
- int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
+ int uptodate = !bio->bi_error;
struct r1bio *r1_bio = bio->bi_private;
int mirror;
struct r1conf *conf = r1_bio->mddev->private;
@@ -397,9 +398,8 @@ static void r1_bio_write_done(struct r1bio *r1_bio)
}
}
-static void raid1_end_write_request(struct bio *bio, int error)
+static void raid1_end_write_request(struct bio *bio)
{
- int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
struct r1bio *r1_bio = bio->bi_private;
int mirror, behind = test_bit(R1BIO_BehindIO, &r1_bio->state);
struct r1conf *conf = r1_bio->mddev->private;
@@ -410,7 +410,7 @@ static void raid1_end_write_request(struct bio *bio, int error)
/*
* 'one mirror IO has finished' event handler:
*/
- if (!uptodate) {
+ if (bio->bi_error) {
set_bit(WriteErrorSeen,
&conf->mirrors[mirror].rdev->flags);
if (!test_and_set_bit(WantReplacement,
@@ -793,7 +793,7 @@ static void flush_pending_writes(struct r1conf *conf)
if (unlikely((bio->bi_rw & REQ_DISCARD) &&
!blk_queue_discard(bdev_get_queue(bio->bi_bdev))))
/* Just ignore it */
- bio_endio(bio, 0);
+ bio_endio(bio);
else
generic_make_request(bio);
bio = next;
@@ -1068,7 +1068,7 @@ static void raid1_unplug(struct blk_plug_cb *cb, bool from_schedule)
if (unlikely((bio->bi_rw & REQ_DISCARD) &&
!blk_queue_discard(bdev_get_queue(bio->bi_bdev))))
/* Just ignore it */
- bio_endio(bio, 0);
+ bio_endio(bio);
else
generic_make_request(bio);
bio = next;
@@ -1734,7 +1734,7 @@ abort:
return err;
}
-static void end_sync_read(struct bio *bio, int error)
+static void end_sync_read(struct bio *bio)
{
struct r1bio *r1_bio = bio->bi_private;
@@ -1745,16 +1745,16 @@ static void end_sync_read(struct bio *bio, int error)
* or re-read if the read failed.
* We don't do much here, just schedule handling by raid1d
*/
- if (test_bit(BIO_UPTODATE, &bio->bi_flags))
+ if (!bio->bi_error)
set_bit(R1BIO_Uptodate, &r1_bio->state);
if (atomic_dec_and_test(&r1_bio->remaining))
reschedule_retry(r1_bio);
}
-static void end_sync_write(struct bio *bio, int error)
+static void end_sync_write(struct bio *bio)
{
- int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
+ int uptodate = !bio->bi_error;
struct r1bio *r1_bio = bio->bi_private;
struct mddev *mddev = r1_bio->mddev;
struct r1conf *conf = mddev->private;
@@ -1941,7 +1941,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
idx ++;
}
set_bit(R1BIO_Uptodate, &r1_bio->state);
- set_bit(BIO_UPTODATE, &bio->bi_flags);
+ bio->bi_error = 0;
return 1;
}
@@ -1965,15 +1965,14 @@ static void process_checks(struct r1bio *r1_bio)
for (i = 0; i < conf->raid_disks * 2; i++) {
int j;
int size;
- int uptodate;
+ int error;
struct bio *b = r1_bio->bios[i];
if (b->bi_end_io != end_sync_read)
continue;
- /* fixup the bio for reuse, but preserve BIO_UPTODATE */
- uptodate = test_bit(BIO_UPTODATE, &b->bi_flags);
+ /* fixup the bio for reuse, but preserve errno */
+ error = b->bi_error;
bio_reset(b);
- if (!uptodate)
- clear_bit(BIO_UPTODATE, &b->bi_flags);
+ b->bi_error = error;
b->bi_vcnt = vcnt;
b->bi_iter.bi_size = r1_bio->sectors << 9;
b->bi_iter.bi_sector = r1_bio->sector +
@@ -1996,7 +1995,7 @@ static void process_checks(struct r1bio *r1_bio)
}
for (primary = 0; primary < conf->raid_disks * 2; primary++)
if (r1_bio->bios[primary]->bi_end_io == end_sync_read &&
- test_bit(BIO_UPTODATE, &r1_bio->bios[primary]->bi_flags)) {
+ !r1_bio->bios[primary]->bi_error) {
r1_bio->bios[primary]->bi_end_io = NULL;
rdev_dec_pending(conf->mirrors[primary].rdev, mddev);
break;
@@ -2006,14 +2005,14 @@ static void process_checks(struct r1bio *r1_bio)
int j;
struct bio *pbio = r1_bio->bios[primary];
struct bio *sbio = r1_bio->bios[i];
- int uptodate = test_bit(BIO_UPTODATE, &sbio->bi_flags);
+ int error = sbio->bi_error;
if (sbio->bi_end_io != end_sync_read)
continue;
- /* Now we can 'fixup' the BIO_UPTODATE flag */
- set_bit(BIO_UPTODATE, &sbio->bi_flags);
+ /* Now we can 'fixup' the error value */
+ sbio->bi_error = 0;
- if (uptodate) {
+ if (!error) {
for (j = vcnt; j-- ; ) {
struct page *p, *s;
p = pbio->bi_io_vec[j].bv_page;
@@ -2028,7 +2027,7 @@ static void process_checks(struct r1bio *r1_bio)
if (j >= 0)
atomic64_add(r1_bio->sectors, &mddev->resync_mismatches);
if (j < 0 || (test_bit(MD_RECOVERY_CHECK, &mddev->recovery)
- && uptodate)) {
+ && !error)) {
/* No need to write to this device. */
sbio->bi_end_io = NULL;
rdev_dec_pending(conf->mirrors[i].rdev, mddev);
@@ -2269,11 +2268,11 @@ static void handle_sync_write_finished(struct r1conf *conf, struct r1bio *r1_bio
struct bio *bio = r1_bio->bios[m];
if (bio->bi_end_io == NULL)
continue;
- if (test_bit(BIO_UPTODATE, &bio->bi_flags) &&
+ if (!bio->bi_error &&
test_bit(R1BIO_MadeGood, &r1_bio->state)) {
rdev_clear_badblocks(rdev, r1_bio->sector, s, 0);
}
- if (!test_bit(BIO_UPTODATE, &bio->bi_flags) &&
+ if (bio->bi_error &&
test_bit(R1BIO_WriteError, &r1_bio->state)) {
if (!rdev_set_badblocks(rdev, r1_bio->sector, s, 0))
md_error(conf->mddev, rdev);
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-08 15:03:49 +0000