Merge tag 'md/4.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
Pull MD fixes from Shaohua Li:
"This includes several bug fixes:
- Alexey Obitotskiy fixed a hang for faulty raid5 array with external
management
- Song Liu fixed two raid5 journal related bugs
- Tomasz Majchrzak fixed a bad block recording issue and an
accounting issue for raid10
- ZhengYuan Liu fixed an accounting issue for raid5
- I fixed a potential race condition and memory leak with DIF/DIX
enabled
- other trival fixes"
* tag 'md/4.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
raid5: avoid unnecessary bio data set
raid5: fix memory leak of bio integrity data
raid10: record correct address of bad block
md-cluster: fix error return code in join()
r5cache: set MD_JOURNAL_CLEAN correctly
md: don't print the same repeated messages about delayed sync operation
md: remove obsolete ret in md_start_sync
md: do not count journal as spare in GET_ARRAY_INFO
md: Prevent IO hold during accessing to faulty raid5 array
MD: hold mddev lock to change bitmap location
raid5: fix incorrectly counter of conf->empty_inactive_list_nr
raid10: increment write counter after bio is split
This commit is contained in:
Linus Torvalds
Коммит
86a1679860
|
|
@ -2183,19 +2183,29 @@ location_show(struct mddev *mddev, char *page)
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static ssize_t
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location_store(struct mddev *mddev, const char *buf, size_t len)
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{
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int rv;
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rv = mddev_lock(mddev);
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if (rv)
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return rv;
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if (mddev->pers) {
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if (!mddev->pers->quiesce)
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return -EBUSY;
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if (mddev->recovery || mddev->sync_thread)
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return -EBUSY;
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if (!mddev->pers->quiesce) {
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rv = -EBUSY;
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goto out;
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}
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if (mddev->recovery || mddev->sync_thread) {
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rv = -EBUSY;
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goto out;
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}
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}
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if (mddev->bitmap || mddev->bitmap_info.file ||
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mddev->bitmap_info.offset) {
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/* bitmap already configured. Only option is to clear it */
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if (strncmp(buf, "none", 4) != 0)
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return -EBUSY;
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if (strncmp(buf, "none", 4) != 0) {
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rv = -EBUSY;
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goto out;
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}
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if (mddev->pers) {
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mddev->pers->quiesce(mddev, 1);
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bitmap_destroy(mddev);
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@ -2214,21 +2224,25 @@ location_store(struct mddev *mddev, const char *buf, size_t len)
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/* nothing to be done */;
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else if (strncmp(buf, "file:", 5) == 0) {
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/* Not supported yet */
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return -EINVAL;
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rv = -EINVAL;
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goto out;
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} else {
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int rv;
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if (buf[0] == '+')
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rv = kstrtoll(buf+1, 10, &offset);
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else
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rv = kstrtoll(buf, 10, &offset);
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if (rv)
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return rv;
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if (offset == 0)
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return -EINVAL;
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goto out;
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if (offset == 0) {
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rv = -EINVAL;
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goto out;
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}
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if (mddev->bitmap_info.external == 0 &&
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mddev->major_version == 0 &&
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offset != mddev->bitmap_info.default_offset)
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return -EINVAL;
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offset != mddev->bitmap_info.default_offset) {
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rv = -EINVAL;
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goto out;
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}
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mddev->bitmap_info.offset = offset;
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if (mddev->pers) {
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struct bitmap *bitmap;
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|
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@ -2245,7 +2259,7 @@ location_store(struct mddev *mddev, const char *buf, size_t len)
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mddev->pers->quiesce(mddev, 0);
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if (rv) {
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bitmap_destroy(mddev);
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return rv;
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goto out;
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}
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}
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}
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|
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@ -2257,6 +2271,11 @@ location_store(struct mddev *mddev, const char *buf, size_t len)
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set_bit(MD_CHANGE_DEVS, &mddev->flags);
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md_wakeup_thread(mddev->thread);
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}
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rv = 0;
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out:
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mddev_unlock(mddev);
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if (rv)
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return rv;
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return len;
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}
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|
|
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@ -834,8 +834,10 @@ static int join(struct mddev *mddev, int nodes)
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goto err;
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}
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cinfo->ack_lockres = lockres_init(mddev, "ack", ack_bast, 0);
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if (!cinfo->ack_lockres)
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if (!cinfo->ack_lockres) {
|
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ret = -ENOMEM;
|
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goto err;
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||||
}
|
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/* get sync CR lock on ACK. */
|
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if (dlm_lock_sync(cinfo->ack_lockres, DLM_LOCK_CR))
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pr_err("md-cluster: failed to get a sync CR lock on ACK!(%d)\n",
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|
|
@ -849,8 +851,10 @@ static int join(struct mddev *mddev, int nodes)
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pr_info("md-cluster: Joined cluster %s slot %d\n", str, cinfo->slot_number);
|
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snprintf(str, 64, "bitmap%04d", cinfo->slot_number - 1);
|
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cinfo->bitmap_lockres = lockres_init(mddev, str, NULL, 1);
|
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if (!cinfo->bitmap_lockres)
|
||||
if (!cinfo->bitmap_lockres) {
|
||||
ret = -ENOMEM;
|
||||
goto err;
|
||||
}
|
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if (dlm_lock_sync(cinfo->bitmap_lockres, DLM_LOCK_PW)) {
|
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pr_err("Failed to get bitmap lock\n");
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ret = -EINVAL;
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|
|
@ -858,8 +862,10 @@ static int join(struct mddev *mddev, int nodes)
|
|||
}
|
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|
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cinfo->resync_lockres = lockres_init(mddev, "resync", NULL, 0);
|
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if (!cinfo->resync_lockres)
|
||||
if (!cinfo->resync_lockres) {
|
||||
ret = -ENOMEM;
|
||||
goto err;
|
||||
}
|
||||
|
||||
return 0;
|
||||
err:
|
||||
|
|
|
|||
|
|
@ -1604,11 +1604,8 @@ static int super_1_validate(struct mddev *mddev, struct md_rdev *rdev)
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mddev->new_chunk_sectors = mddev->chunk_sectors;
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}
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|
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if (le32_to_cpu(sb->feature_map) & MD_FEATURE_JOURNAL) {
|
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if (le32_to_cpu(sb->feature_map) & MD_FEATURE_JOURNAL)
|
||||
set_bit(MD_HAS_JOURNAL, &mddev->flags);
|
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if (mddev->recovery_cp == MaxSector)
|
||||
set_bit(MD_JOURNAL_CLEAN, &mddev->flags);
|
||||
}
|
||||
} else if (mddev->pers == NULL) {
|
||||
/* Insist of good event counter while assembling, except for
|
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* spares (which don't need an event count) */
|
||||
|
|
@ -5851,6 +5848,9 @@ static int get_array_info(struct mddev *mddev, void __user *arg)
|
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working++;
|
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if (test_bit(In_sync, &rdev->flags))
|
||||
insync++;
|
||||
else if (test_bit(Journal, &rdev->flags))
|
||||
/* TODO: add journal count to md_u.h */
|
||||
;
|
||||
else
|
||||
spare++;
|
||||
}
|
||||
|
|
@ -7862,6 +7862,7 @@ void md_do_sync(struct md_thread *thread)
|
|||
*/
|
||||
|
||||
do {
|
||||
int mddev2_minor = -1;
|
||||
mddev->curr_resync = 2;
|
||||
|
||||
try_again:
|
||||
|
|
@ -7891,10 +7892,14 @@ void md_do_sync(struct md_thread *thread)
|
|||
prepare_to_wait(&resync_wait, &wq, TASK_INTERRUPTIBLE);
|
||||
if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery) &&
|
||||
mddev2->curr_resync >= mddev->curr_resync) {
|
||||
printk(KERN_INFO "md: delaying %s of %s"
|
||||
" until %s has finished (they"
|
||||
" share one or more physical units)\n",
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desc, mdname(mddev), mdname(mddev2));
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if (mddev2_minor != mddev2->md_minor) {
|
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mddev2_minor = mddev2->md_minor;
|
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printk(KERN_INFO "md: delaying %s of %s"
|
||||
" until %s has finished (they"
|
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" share one or more physical units)\n",
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desc, mdname(mddev),
|
||||
mdname(mddev2));
|
||||
}
|
||||
mddev_put(mddev2);
|
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if (signal_pending(current))
|
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flush_signals(current);
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|
|
@ -8275,16 +8280,13 @@ no_add:
|
|||
static void md_start_sync(struct work_struct *ws)
|
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{
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struct mddev *mddev = container_of(ws, struct mddev, del_work);
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int ret = 0;
|
||||
|
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mddev->sync_thread = md_register_thread(md_do_sync,
|
||||
mddev,
|
||||
"resync");
|
||||
if (!mddev->sync_thread) {
|
||||
if (!(mddev_is_clustered(mddev) && ret == -EAGAIN))
|
||||
printk(KERN_ERR "%s: could not start resync"
|
||||
" thread...\n",
|
||||
mdname(mddev));
|
||||
printk(KERN_ERR "%s: could not start resync thread...\n",
|
||||
mdname(mddev));
|
||||
/* leave the spares where they are, it shouldn't hurt */
|
||||
clear_bit(MD_RECOVERY_SYNC, &mddev->recovery);
|
||||
clear_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
|
||||
|
|
|
|||
|
|
@ -1064,6 +1064,8 @@ static void __make_request(struct mddev *mddev, struct bio *bio)
|
|||
int max_sectors;
|
||||
int sectors;
|
||||
|
||||
md_write_start(mddev, bio);
|
||||
|
||||
/*
|
||||
* Register the new request and wait if the reconstruction
|
||||
* thread has put up a bar for new requests.
|
||||
|
|
@ -1445,8 +1447,6 @@ static void raid10_make_request(struct mddev *mddev, struct bio *bio)
|
|||
return;
|
||||
}
|
||||
|
||||
md_write_start(mddev, bio);
|
||||
|
||||
do {
|
||||
|
||||
/*
|
||||
|
|
@ -2465,20 +2465,21 @@ static int narrow_write_error(struct r10bio *r10_bio, int i)
|
|||
|
||||
while (sect_to_write) {
|
||||
struct bio *wbio;
|
||||
sector_t wsector;
|
||||
if (sectors > sect_to_write)
|
||||
sectors = sect_to_write;
|
||||
/* Write at 'sector' for 'sectors' */
|
||||
wbio = bio_clone_mddev(bio, GFP_NOIO, mddev);
|
||||
bio_trim(wbio, sector - bio->bi_iter.bi_sector, sectors);
|
||||
wbio->bi_iter.bi_sector = (r10_bio->devs[i].addr+
|
||||
choose_data_offset(r10_bio, rdev) +
|
||||
(sector - r10_bio->sector));
|
||||
wsector = r10_bio->devs[i].addr + (sector - r10_bio->sector);
|
||||
wbio->bi_iter.bi_sector = wsector +
|
||||
choose_data_offset(r10_bio, rdev);
|
||||
wbio->bi_bdev = rdev->bdev;
|
||||
bio_set_op_attrs(wbio, REQ_OP_WRITE, 0);
|
||||
|
||||
if (submit_bio_wait(wbio) < 0)
|
||||
/* Failure! */
|
||||
ok = rdev_set_badblocks(rdev, sector,
|
||||
ok = rdev_set_badblocks(rdev, wsector,
|
||||
sectors, 0)
|
||||
&& ok;
|
||||
|
||||
|
|
|
|||
|
|
@ -659,6 +659,7 @@ raid5_get_active_stripe(struct r5conf *conf, sector_t sector,
|
|||
{
|
||||
struct stripe_head *sh;
|
||||
int hash = stripe_hash_locks_hash(sector);
|
||||
int inc_empty_inactive_list_flag;
|
||||
|
||||
pr_debug("get_stripe, sector %llu\n", (unsigned long long)sector);
|
||||
|
||||
|
|
@ -703,7 +704,12 @@ raid5_get_active_stripe(struct r5conf *conf, sector_t sector,
|
|||
atomic_inc(&conf->active_stripes);
|
||||
BUG_ON(list_empty(&sh->lru) &&
|
||||
!test_bit(STRIPE_EXPANDING, &sh->state));
|
||||
inc_empty_inactive_list_flag = 0;
|
||||
if (!list_empty(conf->inactive_list + hash))
|
||||
inc_empty_inactive_list_flag = 1;
|
||||
list_del_init(&sh->lru);
|
||||
if (list_empty(conf->inactive_list + hash) && inc_empty_inactive_list_flag)
|
||||
atomic_inc(&conf->empty_inactive_list_nr);
|
||||
if (sh->group) {
|
||||
sh->group->stripes_cnt--;
|
||||
sh->group = NULL;
|
||||
|
|
@ -762,6 +768,7 @@ static void stripe_add_to_batch_list(struct r5conf *conf, struct stripe_head *sh
|
|||
sector_t head_sector, tmp_sec;
|
||||
int hash;
|
||||
int dd_idx;
|
||||
int inc_empty_inactive_list_flag;
|
||||
|
||||
/* Don't cross chunks, so stripe pd_idx/qd_idx is the same */
|
||||
tmp_sec = sh->sector;
|
||||
|
|
@ -779,7 +786,12 @@ static void stripe_add_to_batch_list(struct r5conf *conf, struct stripe_head *sh
|
|||
atomic_inc(&conf->active_stripes);
|
||||
BUG_ON(list_empty(&head->lru) &&
|
||||
!test_bit(STRIPE_EXPANDING, &head->state));
|
||||
inc_empty_inactive_list_flag = 0;
|
||||
if (!list_empty(conf->inactive_list + hash))
|
||||
inc_empty_inactive_list_flag = 1;
|
||||
list_del_init(&head->lru);
|
||||
if (list_empty(conf->inactive_list + hash) && inc_empty_inactive_list_flag)
|
||||
atomic_inc(&conf->empty_inactive_list_nr);
|
||||
if (head->group) {
|
||||
head->group->stripes_cnt--;
|
||||
head->group = NULL;
|
||||
|
|
@ -993,7 +1005,6 @@ again:
|
|||
|
||||
set_bit(STRIPE_IO_STARTED, &sh->state);
|
||||
|
||||
bio_reset(bi);
|
||||
bi->bi_bdev = rdev->bdev;
|
||||
bio_set_op_attrs(bi, op, op_flags);
|
||||
bi->bi_end_io = op_is_write(op)
|
||||
|
|
@ -1045,7 +1056,6 @@ again:
|
|||
|
||||
set_bit(STRIPE_IO_STARTED, &sh->state);
|
||||
|
||||
bio_reset(rbi);
|
||||
rbi->bi_bdev = rrdev->bdev;
|
||||
bio_set_op_attrs(rbi, op, op_flags);
|
||||
BUG_ON(!op_is_write(op));
|
||||
|
|
@ -1978,9 +1988,11 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request)
|
|||
put_cpu();
|
||||
}
|
||||
|
||||
static struct stripe_head *alloc_stripe(struct kmem_cache *sc, gfp_t gfp)
|
||||
static struct stripe_head *alloc_stripe(struct kmem_cache *sc, gfp_t gfp,
|
||||
int disks)
|
||||
{
|
||||
struct stripe_head *sh;
|
||||
int i;
|
||||
|
||||
sh = kmem_cache_zalloc(sc, gfp);
|
||||
if (sh) {
|
||||
|
|
@ -1989,6 +2001,17 @@ static struct stripe_head *alloc_stripe(struct kmem_cache *sc, gfp_t gfp)
|
|||
INIT_LIST_HEAD(&sh->batch_list);
|
||||
INIT_LIST_HEAD(&sh->lru);
|
||||
atomic_set(&sh->count, 1);
|
||||
for (i = 0; i < disks; i++) {
|
||||
struct r5dev *dev = &sh->dev[i];
|
||||
|
||||
bio_init(&dev->req);
|
||||
dev->req.bi_io_vec = &dev->vec;
|
||||
dev->req.bi_max_vecs = 1;
|
||||
|
||||
bio_init(&dev->rreq);
|
||||
dev->rreq.bi_io_vec = &dev->rvec;
|
||||
dev->rreq.bi_max_vecs = 1;
|
||||
}
|
||||
}
|
||||
return sh;
|
||||
}
|
||||
|
|
@ -1996,7 +2019,7 @@ static int grow_one_stripe(struct r5conf *conf, gfp_t gfp)
|
|||
{
|
||||
struct stripe_head *sh;
|
||||
|
||||
sh = alloc_stripe(conf->slab_cache, gfp);
|
||||
sh = alloc_stripe(conf->slab_cache, gfp, conf->pool_size);
|
||||
if (!sh)
|
||||
return 0;
|
||||
|
||||
|
|
@ -2167,7 +2190,7 @@ static int resize_stripes(struct r5conf *conf, int newsize)
|
|||
mutex_lock(&conf->cache_size_mutex);
|
||||
|
||||
for (i = conf->max_nr_stripes; i; i--) {
|
||||
nsh = alloc_stripe(sc, GFP_KERNEL);
|
||||
nsh = alloc_stripe(sc, GFP_KERNEL, newsize);
|
||||
if (!nsh)
|
||||
break;
|
||||
|
||||
|
|
@ -2299,6 +2322,7 @@ static void raid5_end_read_request(struct bio * bi)
|
|||
(unsigned long long)sh->sector, i, atomic_read(&sh->count),
|
||||
bi->bi_error);
|
||||
if (i == disks) {
|
||||
bio_reset(bi);
|
||||
BUG();
|
||||
return;
|
||||
}
|
||||
|
|
@ -2402,6 +2426,7 @@ static void raid5_end_read_request(struct bio * bi)
|
|||
clear_bit(R5_LOCKED, &sh->dev[i].flags);
|
||||
set_bit(STRIPE_HANDLE, &sh->state);
|
||||
raid5_release_stripe(sh);
|
||||
bio_reset(bi);
|
||||
}
|
||||
|
||||
static void raid5_end_write_request(struct bio *bi)
|
||||
|
|
@ -2436,6 +2461,7 @@ static void raid5_end_write_request(struct bio *bi)
|
|||
(unsigned long long)sh->sector, i, atomic_read(&sh->count),
|
||||
bi->bi_error);
|
||||
if (i == disks) {
|
||||
bio_reset(bi);
|
||||
BUG();
|
||||
return;
|
||||
}
|
||||
|
|
@ -2479,22 +2505,13 @@ static void raid5_end_write_request(struct bio *bi)
|
|||
|
||||
if (sh->batch_head && sh != sh->batch_head)
|
||||
raid5_release_stripe(sh->batch_head);
|
||||
bio_reset(bi);
|
||||
}
|
||||
|
||||
static void raid5_build_block(struct stripe_head *sh, int i, int previous)
|
||||
{
|
||||
struct r5dev *dev = &sh->dev[i];
|
||||
|
||||
bio_init(&dev->req);
|
||||
dev->req.bi_io_vec = &dev->vec;
|
||||
dev->req.bi_max_vecs = 1;
|
||||
dev->req.bi_private = sh;
|
||||
|
||||
bio_init(&dev->rreq);
|
||||
dev->rreq.bi_io_vec = &dev->rvec;
|
||||
dev->rreq.bi_max_vecs = 1;
|
||||
dev->rreq.bi_private = sh;
|
||||
|
||||
dev->flags = 0;
|
||||
dev->sector = raid5_compute_blocknr(sh, i, previous);
|
||||
}
|
||||
|
|
@ -4628,7 +4645,9 @@ finish:
|
|||
}
|
||||
|
||||
if (!bio_list_empty(&s.return_bi)) {
|
||||
if (test_bit(MD_CHANGE_PENDING, &conf->mddev->flags)) {
|
||||
if (test_bit(MD_CHANGE_PENDING, &conf->mddev->flags) &&
|
||||
(s.failed <= conf->max_degraded ||
|
||||
conf->mddev->external == 0)) {
|
||||
spin_lock_irq(&conf->device_lock);
|
||||
bio_list_merge(&conf->return_bi, &s.return_bi);
|
||||
spin_unlock_irq(&conf->device_lock);
|
||||
|
|
@ -6826,11 +6845,14 @@ static int raid5_run(struct mddev *mddev)
|
|||
if (IS_ERR(conf))
|
||||
return PTR_ERR(conf);
|
||||
|
||||
if (test_bit(MD_HAS_JOURNAL, &mddev->flags) && !journal_dev) {
|
||||
printk(KERN_ERR "md/raid:%s: journal disk is missing, force array readonly\n",
|
||||
mdname(mddev));
|
||||
mddev->ro = 1;
|
||||
set_disk_ro(mddev->gendisk, 1);
|
||||
if (test_bit(MD_HAS_JOURNAL, &mddev->flags)) {
|
||||
if (!journal_dev) {
|
||||
pr_err("md/raid:%s: journal disk is missing, force array readonly\n",
|
||||
mdname(mddev));
|
||||
mddev->ro = 1;
|
||||
set_disk_ro(mddev->gendisk, 1);
|
||||
} else if (mddev->recovery_cp == MaxSector)
|
||||
set_bit(MD_JOURNAL_CLEAN, &mddev->flags);
|
||||
}
|
||||
|
||||
conf->min_offset_diff = min_offset_diff;
|
||||
|
|
|
|||
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