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Commit 5d81a787 authored by Dmitry Torokhov's avatar Dmitry Torokhov
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Merge branch 'ib/4.17-bitmap' into next 

Bring in bitmap API improvements.
parents 955c594e c42b65e3
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Showing with 316 additions and 304 deletions
drivers/md/dm-raid.c
View file @ 5d81a787
......@@ -3859,7 +3859,7 @@ static int __load_dirty_region_bitmap(struct raid_set *rs)
/* Try loading the bitmap unless "raid0", which does not have one */
if (!rs_is_raid0(rs) &&
!test_and_set_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags)) {
r = bitmap_load(&rs->md);
r = md_bitmap_load(&rs->md);
if (r)
DMERR("Failed to load bitmap");
}
......@@ -3987,7 +3987,7 @@ static int raid_preresume(struct dm_target *ti)
/* Resize bitmap to adjust to changed region size (aka MD bitmap chunksize) */
if (test_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags) && mddev->bitmap &&
mddev->bitmap_info.chunksize != to_bytes(rs->requested_bitmap_chunk_sectors)) {
r = bitmap_resize(mddev->bitmap, mddev->dev_sectors,
r = md_bitmap_resize(mddev->bitmap, mddev->dev_sectors,
to_bytes(rs->requested_bitmap_chunk_sectors), 0);
if (r)
DMERR("Failed to resize bitmap");
......
drivers/md/md-bitmap.c
View file @ 5d81a787
This diff is collapsed.
drivers/md/md-bitmap.h
View file @ 5d81a787
......@@ -236,43 +236,43 @@ struct bitmap {
/* the bitmap API */
/* these are used only by md/bitmap */
struct bitmap *bitmap_create(struct mddev *mddev, int slot);
int bitmap_load(struct mddev *mddev);
void bitmap_flush(struct mddev *mddev);
void bitmap_destroy(struct mddev *mddev);
struct bitmap *md_bitmap_create(struct mddev *mddev, int slot);
int md_bitmap_load(struct mddev *mddev);
void md_bitmap_flush(struct mddev *mddev);
void md_bitmap_destroy(struct mddev *mddev);
void bitmap_print_sb(struct bitmap *bitmap);
void bitmap_update_sb(struct bitmap *bitmap);
void bitmap_status(struct seq_file *seq, struct bitmap *bitmap);
void md_bitmap_print_sb(struct bitmap *bitmap);
void md_bitmap_update_sb(struct bitmap *bitmap);
void md_bitmap_status(struct seq_file *seq, struct bitmap *bitmap);
int bitmap_setallbits(struct bitmap *bitmap);
void bitmap_write_all(struct bitmap *bitmap);
int md_bitmap_setallbits(struct bitmap *bitmap);
void md_bitmap_write_all(struct bitmap *bitmap);
void bitmap_dirty_bits(struct bitmap *bitmap, unsigned long s, unsigned long e);
void md_bitmap_dirty_bits(struct bitmap *bitmap, unsigned long s, unsigned long e);
/* these are exported */
int bitmap_startwrite(struct bitmap *bitmap, sector_t offset,
int md_bitmap_startwrite(struct bitmap *bitmap, sector_t offset,
unsigned long sectors, int behind);
void bitmap_endwrite(struct bitmap *bitmap, sector_t offset,
void md_bitmap_endwrite(struct bitmap *bitmap, sector_t offset,
unsigned long sectors, int success, int behind);
int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks, int degraded);
void bitmap_end_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks, int aborted);
void bitmap_close_sync(struct bitmap *bitmap);
void bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector, bool force);
void bitmap_sync_with_cluster(struct mddev *mddev,
int md_bitmap_start_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks, int degraded);
void md_bitmap_end_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks, int aborted);
void md_bitmap_close_sync(struct bitmap *bitmap);
void md_bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector, bool force);
void md_bitmap_sync_with_cluster(struct mddev *mddev,
sector_t old_lo, sector_t old_hi,
sector_t new_lo, sector_t new_hi);
void bitmap_unplug(struct bitmap *bitmap);
void bitmap_daemon_work(struct mddev *mddev);
void md_bitmap_unplug(struct bitmap *bitmap);
void md_bitmap_daemon_work(struct mddev *mddev);
int bitmap_resize(struct bitmap *bitmap, sector_t blocks,
int md_bitmap_resize(struct bitmap *bitmap, sector_t blocks,
int chunksize, int init);
struct bitmap *get_bitmap_from_slot(struct mddev *mddev, int slot);
int bitmap_copy_from_slot(struct mddev *mddev, int slot,
int md_bitmap_copy_from_slot(struct mddev *mddev, int slot,
sector_t *lo, sector_t *hi, bool clear_bits);
void bitmap_free(struct bitmap *bitmap);
void bitmap_wait_behind_writes(struct mddev *mddev);
void md_bitmap_free(struct bitmap *bitmap);
void md_bitmap_wait_behind_writes(struct mddev *mddev);
#endif
#endif
drivers/md/md-cluster.c
View file @ 5d81a787
......@@ -326,7 +326,7 @@ static void recover_bitmaps(struct md_thread *thread)
str, ret);
goto clear_bit;
}
ret = bitmap_copy_from_slot(mddev, slot, &lo, &hi, true);
ret = md_bitmap_copy_from_slot(mddev, slot, &lo, &hi, true);
if (ret) {
pr_err("md-cluster: Could not copy data from bitmap %d\n", slot);
goto clear_bit;
......@@ -480,9 +480,7 @@ static void process_suspend_info(struct mddev *mddev,
* resync thread is running in another node,
* so we don't need to do the resync again
* with the same section */
bitmap_sync_with_cluster(mddev, cinfo->sync_low,
cinfo->sync_hi,
lo, hi);
md_bitmap_sync_with_cluster(mddev, cinfo->sync_low, cinfo->sync_hi, lo, hi);
cinfo->sync_low = lo;
cinfo->sync_hi = hi;
......@@ -829,7 +827,7 @@ static int gather_all_resync_info(struct mddev *mddev, int total_slots)
}
/* Read the disk bitmap sb and check if it needs recovery */
ret = bitmap_copy_from_slot(mddev, i, &lo, &hi, false);
ret = md_bitmap_copy_from_slot(mddev, i, &lo, &hi, false);
if (ret) {
pr_warn("md-cluster: Could not gather bitmaps from slot %d", i);
lockres_free(bm_lockres);
......@@ -1127,13 +1125,13 @@ static int cluster_check_sync_size(struct mddev *mddev)
bm_lockres = lockres_init(mddev, str, NULL, 1);
if (!bm_lockres) {
pr_err("md-cluster: Cannot initialize %s\n", str);
bitmap_free(bitmap);
md_bitmap_free(bitmap);
return -1;
}
bm_lockres->flags |= DLM_LKF_NOQUEUE;
rv = dlm_lock_sync(bm_lockres, DLM_LOCK_PW);
if (!rv)
bitmap_update_sb(bitmap);
md_bitmap_update_sb(bitmap);
lockres_free(bm_lockres);
sb = kmap_atomic(bitmap->storage.sb_page);
......@@ -1141,11 +1139,11 @@ static int cluster_check_sync_size(struct mddev *mddev)
sync_size = sb->sync_size;
else if (sync_size != sb->sync_size) {
kunmap_atomic(sb);
bitmap_free(bitmap);
md_bitmap_free(bitmap);
return -1;
}
kunmap_atomic(sb);
bitmap_free(bitmap);
md_bitmap_free(bitmap);
}
return (my_sync_size == sync_size) ? 0 : -1;
......@@ -1442,7 +1440,7 @@ static int gather_bitmaps(struct md_rdev *rdev)
for (sn = 0; sn < mddev->bitmap_info.nodes; sn++) {
if (sn == (cinfo->slot_number - 1))
continue;
err = bitmap_copy_from_slot(mddev, sn, &lo, &hi, false);
err = md_bitmap_copy_from_slot(mddev, sn, &lo, &hi, false);
if (err) {
pr_warn("md-cluster: Could not gather bitmaps from slot %d", sn);
goto out;
......
drivers/md/md.c
View file @ 5d81a787
......@@ -2560,7 +2560,7 @@ void md_update_sb(struct mddev *mddev, int force_change)
if (mddev->queue)
blk_add_trace_msg(mddev->queue, "md md_update_sb");
rewrite:
bitmap_update_sb(mddev->bitmap);
md_bitmap_update_sb(mddev->bitmap);
rdev_for_each(rdev, mddev) {
char b[BDEVNAME_SIZE];
......@@ -4372,10 +4372,10 @@ bitmap_store(struct mddev *mddev, const char *buf, size_t len)
if (buf == end) break;
}
if (*end && !isspace(*end)) break;
bitmap_dirty_bits(mddev->bitmap, chunk, end_chunk);
md_bitmap_dirty_bits(mddev->bitmap, chunk, end_chunk);
buf = skip_spaces(end);
}
bitmap_unplug(mddev->bitmap); /* flush the bits to disk */
md_bitmap_unplug(mddev->bitmap); /* flush the bits to disk */
out:
mddev_unlock(mddev);
return len;
......@@ -5588,7 +5588,7 @@ int md_run(struct mddev *mddev)
(mddev->bitmap_info.file || mddev->bitmap_info.offset)) {
struct bitmap *bitmap;
bitmap = bitmap_create(mddev, -1);
bitmap = md_bitmap_create(mddev, -1);
if (IS_ERR(bitmap)) {
err = PTR_ERR(bitmap);
pr_warn("%s: failed to create bitmap (%d)\n",
......@@ -5603,7 +5603,7 @@ int md_run(struct mddev *mddev)
pers->free(mddev, mddev->private);
mddev->private = NULL;
module_put(pers->owner);
bitmap_destroy(mddev);
md_bitmap_destroy(mddev);
goto abort;
}
if (mddev->queue) {
......@@ -5688,9 +5688,9 @@ static int do_md_run(struct mddev *mddev)
err = md_run(mddev);
if (err)
goto out;
err = bitmap_load(mddev);
err = md_bitmap_load(mddev);
if (err) {
bitmap_destroy(mddev);
md_bitmap_destroy(mddev);
goto out;
}
......@@ -5832,7 +5832,7 @@ static void __md_stop_writes(struct mddev *mddev)
mddev->pers->quiesce(mddev, 1);
mddev->pers->quiesce(mddev, 0);
}
bitmap_flush(mddev);
md_bitmap_flush(mddev);
if (mddev->ro == 0 &&
((!mddev->in_sync && !mddev_is_clustered(mddev)) ||
......@@ -5854,7 +5854,7 @@ EXPORT_SYMBOL_GPL(md_stop_writes);
static void mddev_detach(struct mddev *mddev)
{
bitmap_wait_behind_writes(mddev);
md_bitmap_wait_behind_writes(mddev);
if (mddev->pers && mddev->pers->quiesce) {
mddev->pers->quiesce(mddev, 1);
mddev->pers->quiesce(mddev, 0);
......@@ -5867,7 +5867,7 @@ static void mddev_detach(struct mddev *mddev)
static void __md_stop(struct mddev *mddev)
{
struct md_personality *pers = mddev->pers;
bitmap_destroy(mddev);
md_bitmap_destroy(mddev);
mddev_detach(mddev);
/* Ensure ->event_work is done */
flush_workqueue(md_misc_wq);
......@@ -6681,21 +6681,21 @@ static int set_bitmap_file(struct mddev *mddev, int fd)
if (fd >= 0) {
struct bitmap *bitmap;
bitmap = bitmap_create(mddev, -1);
bitmap = md_bitmap_create(mddev, -1);
mddev_suspend(mddev);
if (!IS_ERR(bitmap)) {
mddev->bitmap = bitmap;
err = bitmap_load(mddev);
err = md_bitmap_load(mddev);
} else
err = PTR_ERR(bitmap);
if (err) {
bitmap_destroy(mddev);
md_bitmap_destroy(mddev);
fd = -1;
}
mddev_resume(mddev);
} else if (fd < 0) {
mddev_suspend(mddev);
bitmap_destroy(mddev);
md_bitmap_destroy(mddev);
mddev_resume(mddev);
}
}
......@@ -6981,15 +6981,15 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
mddev->bitmap_info.default_offset;
mddev->bitmap_info.space =
mddev->bitmap_info.default_space;
bitmap = bitmap_create(mddev, -1);
bitmap = md_bitmap_create(mddev, -1);
mddev_suspend(mddev);
if (!IS_ERR(bitmap)) {
mddev->bitmap = bitmap;
rv = bitmap_load(mddev);
rv = md_bitmap_load(mddev);
} else
rv = PTR_ERR(bitmap);
if (rv)
bitmap_destroy(mddev);
md_bitmap_destroy(mddev);
mddev_resume(mddev);
} else {
/* remove the bitmap */
......@@ -7014,7 +7014,7 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
md_cluster_ops->leave(mddev);
}
mddev_suspend(mddev);
bitmap_destroy(mddev);
md_bitmap_destroy(mddev);
mddev_resume(mddev);
mddev->bitmap_info.offset = 0;
}
......@@ -7877,7 +7877,7 @@ static int md_seq_show(struct seq_file *seq, void *v)
} else
seq_printf(seq, "\n ");
bitmap_status(seq, mddev->bitmap);
md_bitmap_status(seq, mddev->bitmap);
seq_printf(seq, "\n");
}
......@@ -8748,7 +8748,7 @@ void md_check_recovery(struct mddev *mddev)
return;
if (mddev->bitmap)
bitmap_daemon_work(mddev);
md_bitmap_daemon_work(mddev);
if (signal_pending(current)) {
if (mddev->pers->sync_request && !mddev->external) {
......@@ -8885,7 +8885,7 @@ void md_check_recovery(struct mddev *mddev)
* which has the bitmap stored on all devices.
* So make sure all bitmap pages get written
*/
bitmap_write_all(mddev->bitmap);
md_bitmap_write_all(mddev->bitmap);
}
INIT_WORK(&mddev->del_work, md_start_sync);
queue_work(md_misc_wq, &mddev->del_work);
......@@ -9133,7 +9133,7 @@ static void check_sb_changes(struct mddev *mddev, struct md_rdev *rdev)
if (ret)
pr_info("md-cluster: resize failed\n");
else
bitmap_update_sb(mddev->bitmap);
md_bitmap_update_sb(mddev->bitmap);
}
/* Check for change of roles in the active devices */
......
drivers/md/persistent-data/dm-space-map-common.c
View file @ 5d81a787
......@@ -69,7 +69,7 @@ static struct dm_block_validator index_validator = {
*/
#define BITMAP_CSUM_XOR 240779
static void bitmap_prepare_for_write(struct dm_block_validator *v,
static void dm_bitmap_prepare_for_write(struct dm_block_validator *v,
struct dm_block *b,
size_t block_size)
{
......@@ -81,7 +81,7 @@ static void bitmap_prepare_for_write(struct dm_block_validator *v,
BITMAP_CSUM_XOR));
}
static int bitmap_check(struct dm_block_validator *v,
static int dm_bitmap_check(struct dm_block_validator *v,
struct dm_block *b,
size_t block_size)
{
......@@ -108,8 +108,8 @@ static int bitmap_check(struct dm_block_validator *v,
static struct dm_block_validator dm_sm_bitmap_validator = {
.name = "sm_bitmap",
.prepare_for_write = bitmap_prepare_for_write,
.check = bitmap_check
.prepare_for_write = dm_bitmap_prepare_for_write,
.check = dm_bitmap_check,
};
/*----------------------------------------------------------------*/
......@@ -124,7 +124,7 @@ static void *dm_bitmap_data(struct dm_block *b)
#define WORD_MASK_HIGH 0xAAAAAAAAAAAAAAAAULL
static unsigned bitmap_word_used(void *addr, unsigned b)
static unsigned dm_bitmap_word_used(void *addr, unsigned b)
{
__le64 *words_le = addr;
__le64 *w_le = words_le + (b >> ENTRIES_SHIFT);
......@@ -170,7 +170,7 @@ static int sm_find_free(void *addr, unsigned begin, unsigned end,
{
while (begin < end) {
if (!(begin & (ENTRIES_PER_WORD - 1)) &&
bitmap_word_used(addr, begin)) {
dm_bitmap_word_used(addr, begin)) {
begin += ENTRIES_PER_WORD;
continue;
}
......
drivers/md/raid1.c
View file @ 5d81a787
......@@ -385,7 +385,7 @@ static void close_write(struct r1bio *r1_bio)
r1_bio->behind_master_bio = NULL;
}
/* clear the bitmap if all writes complete successfully */
bitmap_endwrite(r1_bio->mddev->bitmap, r1_bio->sector,
md_bitmap_endwrite(r1_bio->mddev->bitmap, r1_bio->sector,
r1_bio->sectors,
!test_bit(R1BIO_Degraded, &r1_bio->state),
test_bit(R1BIO_BehindIO, &r1_bio->state));
......@@ -781,7 +781,7 @@ static int raid1_congested(struct mddev *mddev, int bits)
static void flush_bio_list(struct r1conf *conf, struct bio *bio)
{
/* flush any pending bitmap writes to disk before proceeding w/ I/O */
bitmap_unplug(conf->mddev->bitmap);
md_bitmap_unplug(conf->mddev->bitmap);
wake_up(&conf->wait_barrier);
while (bio) { /* submit pending writes */
......@@ -1470,10 +1470,8 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio,
alloc_behind_master_bio(r1_bio, bio);
}
bitmap_startwrite(bitmap, r1_bio->sector,
r1_bio->sectors,
test_bit(R1BIO_BehindIO,
&r1_bio->state));
md_bitmap_startwrite(bitmap, r1_bio->sector, r1_bio->sectors,
test_bit(R1BIO_BehindIO, &r1_bio->state));
first_clone = 0;
}
......@@ -1881,8 +1879,7 @@ static void end_sync_write(struct bio *bio)
long sectors_to_go = r1_bio->sectors;
/* make sure these bits doesn't get cleared. */
do {
bitmap_end_sync(mddev->bitmap, s,
&sync_blocks, 1);
md_bitmap_end_sync(mddev->bitmap, s, &sync_blocks, 1);
s += sync_blocks;
sectors_to_go -= sync_blocks;
} while (sectors_to_go > 0);
......@@ -2629,12 +2626,12 @@ static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr,
* We can find the current addess in mddev->curr_resync
*/
if (mddev->curr_resync < max_sector) /* aborted */
bitmap_end_sync(mddev->bitmap, mddev->curr_resync,
md_bitmap_end_sync(mddev->bitmap, mddev->curr_resync,
&sync_blocks, 1);
else /* completed sync */
conf->fullsync = 0;
bitmap_close_sync(mddev->bitmap);
md_bitmap_close_sync(mddev->bitmap);
close_sync(conf);
if (mddev_is_clustered(mddev)) {
......@@ -2654,7 +2651,7 @@ static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr,
/* before building a request, check if we can skip these blocks..
* This call the bitmap_start_sync doesn't actually record anything
*/
if (!bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 1) &&
if (!md_bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 1) &&
!conf->fullsync && !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) {
/* We can skip this block, and probably several more */
*skipped = 1;
......@@ -2672,7 +2669,7 @@ static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr,
* sector_nr + two times RESYNC_SECTORS
*/
bitmap_cond_end_sync(mddev->bitmap, sector_nr,
md_bitmap_cond_end_sync(mddev->bitmap, sector_nr,
mddev_is_clustered(mddev) && (sector_nr + 2 * RESYNC_SECTORS > conf->cluster_sync_high));
......@@ -2831,7 +2828,7 @@ static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr,
if (len == 0)
break;
if (sync_blocks == 0) {
if (!bitmap_start_sync(mddev->bitmap, sector_nr,
if (!md_bitmap_start_sync(mddev->bitmap, sector_nr,
&sync_blocks, still_degraded) &&
!conf->fullsync &&
!test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery))
......@@ -3171,7 +3168,7 @@ static int raid1_resize(struct mddev *mddev, sector_t sectors)
mddev->array_sectors > newsize)
return -EINVAL;
if (mddev->bitmap) {
int ret = bitmap_resize(mddev->bitmap, newsize, 0, 0);
int ret = md_bitmap_resize(mddev->bitmap, newsize, 0, 0);
if (ret)
return ret;
}
......
drivers/md/raid10.c
View file @ 5d81a787
......@@ -438,7 +438,7 @@ static void raid10_end_read_request(struct bio *bio)
static void close_write(struct r10bio *r10_bio)
{
/* clear the bitmap if all writes complete successfully */
bitmap_endwrite(r10_bio->mddev->bitmap, r10_bio->sector,
md_bitmap_endwrite(r10_bio->mddev->bitmap, r10_bio->sector,
r10_bio->sectors,
!test_bit(R10BIO_Degraded, &r10_bio->state),
0);
......@@ -915,7 +915,7 @@ static void flush_pending_writes(struct r10conf *conf)
blk_start_plug(&plug);
/* flush any pending bitmap writes to disk
* before proceeding w/ I/O */
bitmap_unplug(conf->mddev->bitmap);
md_bitmap_unplug(conf->mddev->bitmap);
wake_up(&conf->wait_barrier);
while (bio) { /* submit pending writes */
......@@ -1100,7 +1100,7 @@ static void raid10_unplug(struct blk_plug_cb *cb, bool from_schedule)
/* we aren't scheduling, so we can do the write-out directly. */
bio = bio_list_get(&plug->pending);
bitmap_unplug(mddev->bitmap);
md_bitmap_unplug(mddev->bitmap);
wake_up(&conf->wait_barrier);
while (bio) { /* submit pending writes */
......@@ -1517,7 +1517,7 @@ static void raid10_write_request(struct mddev *mddev, struct bio *bio,
}
atomic_set(&r10_bio->remaining, 1);
bitmap_startwrite(mddev->bitmap, r10_bio->sector, r10_bio->sectors, 0);
md_bitmap_startwrite(mddev->bitmap, r10_bio->sector, r10_bio->sectors, 0);
for (i = 0; i < conf->copies; i++) {
if (r10_bio->devs[i].bio)
......@@ -2990,12 +2990,12 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
if (mddev->curr_resync < max_sector) { /* aborted */
if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery))
bitmap_end_sync(mddev->bitmap, mddev->curr_resync,
md_bitmap_end_sync(mddev->bitmap, mddev->curr_resync,
&sync_blocks, 1);
else for (i = 0; i < conf->geo.raid_disks; i++) {
sector_t sect =
raid10_find_virt(conf, mddev->curr_resync, i);
bitmap_end_sync(mddev->bitmap, sect,
md_bitmap_end_sync(mddev->bitmap, sect,
&sync_blocks, 1);
}
} else {
......@@ -3017,7 +3017,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
}
conf->fullsync = 0;
}
bitmap_close_sync(mddev->bitmap);
md_bitmap_close_sync(mddev->bitmap);
close_sync(conf);
*skipped = 1;
return sectors_skipped;
......@@ -3111,7 +3111,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
* we only need to recover the block if it is set in
* the bitmap
*/
must_sync = bitmap_start_sync(mddev->bitmap, sect,
must_sync = md_bitmap_start_sync(mddev->bitmap, sect,
&sync_blocks, 1);
if (sync_blocks < max_sync)
max_sync = sync_blocks;
......@@ -3157,7 +3157,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
}
}
must_sync = bitmap_start_sync(mddev->bitmap, sect,
must_sync = md_bitmap_start_sync(mddev->bitmap, sect,
&sync_blocks, still_degraded);
any_working = 0;
......@@ -3334,12 +3334,11 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
* safety reason, which ensures curr_resync_completed is
* updated in bitmap_cond_end_sync.
*/
bitmap_cond_end_sync(mddev->bitmap, sector_nr,
md_bitmap_cond_end_sync(mddev->bitmap, sector_nr,
mddev_is_clustered(mddev) &&
(sector_nr + 2 * RESYNC_SECTORS >
conf->cluster_sync_high));
(sector_nr + 2 * RESYNC_SECTORS > conf->cluster_sync_high));
if (!bitmap_start_sync(mddev->bitmap, sector_nr,
if (!md_bitmap_start_sync(mddev->bitmap, sector_nr,
&sync_blocks, mddev->degraded) &&
!conf->fullsync && !test_bit(MD_RECOVERY_REQUESTED,
&mddev->recovery)) {
......@@ -4015,7 +4014,7 @@ static int raid10_resize(struct mddev *mddev, sector_t sectors)
mddev->array_sectors > size)
return -EINVAL;
if (mddev->bitmap) {
int ret = bitmap_resize(mddev->bitmap, size, 0, 0);
int ret = md_bitmap_resize(mddev->bitmap, size, 0, 0);
if (ret)
return ret;
}
......@@ -4281,9 +4280,8 @@ static int raid10_start_reshape(struct mddev *mddev)
spin_unlock_irq(&conf->device_lock);
if (mddev->delta_disks && mddev->bitmap) {
ret = bitmap_resize(mddev->bitmap,
raid10_size(mddev, 0,
conf->geo.raid_disks),
ret = md_bitmap_resize(mddev->bitmap,
raid10_size(mddev, 0, conf->geo.raid_disks),
0, 0);
if (ret)
goto abort;
......
drivers/md/raid5-cache.c
View file @ 5d81a787
......@@ -324,7 +324,7 @@ void r5c_handle_cached_data_endio(struct r5conf *conf,
if (sh->dev[i].written) {
set_bit(R5_UPTODATE, &sh->dev[i].flags);
r5c_return_dev_pending_writes(conf, &sh->dev[i]);
bitmap_endwrite(conf->mddev->bitmap, sh->sector,
md_bitmap_endwrite(conf->mddev->bitmap, sh->sector,
STRIPE_SECTORS,
!test_bit(STRIPE_DEGRADED, &sh->state),
0);
......
drivers/md/raid5.c
View file @ 5d81a787
......@@ -3295,7 +3295,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx,
*/
set_bit(STRIPE_BITMAP_PENDING, &sh->state);
spin_unlock_irq(&sh->stripe_lock);
bitmap_startwrite(conf->mddev->bitmap, sh->sector,
md_bitmap_startwrite(conf->mddev->bitmap, sh->sector,
STRIPE_SECTORS, 0);
spin_lock_irq(&sh->stripe_lock);
clear_bit(STRIPE_BITMAP_PENDING, &sh->state);
......@@ -3386,7 +3386,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
bi = nextbi;
}
if (bitmap_end)
bitmap_endwrite(conf->mddev->bitmap, sh->sector,
md_bitmap_endwrite(conf->mddev->bitmap, sh->sector,
STRIPE_SECTORS, 0, 0);
bitmap_end = 0;
/* and fail all 'written' */
......@@ -3432,7 +3432,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
}
}
if (bitmap_end)
bitmap_endwrite(conf->mddev->bitmap, sh->sector,
md_bitmap_endwrite(conf->mddev->bitmap, sh->sector,
STRIPE_SECTORS, 0, 0);
/* If we were in the middle of a write the parity block might
* still be locked - so just clear all R5_LOCKED flags
......@@ -3773,7 +3773,7 @@ static void handle_stripe_clean_event(struct r5conf *conf,
bio_endio(wbi);
wbi = wbi2;
}
bitmap_endwrite(conf->mddev->bitmap, sh->sector,
md_bitmap_endwrite(conf->mddev->bitmap, sh->sector,
STRIPE_SECTORS,
!test_bit(STRIPE_DEGRADED, &sh->state),
0);
......@@ -5533,7 +5533,7 @@ static void make_discard_request(struct mddev *mddev, struct bio *bi)
for (d = 0;
d < conf->raid_disks - conf->max_degraded;
d++)
bitmap_startwrite(mddev->bitmap,
md_bitmap_startwrite(mddev->bitmap,
sh->sector,
STRIPE_SECTORS,
0);
......@@ -6014,11 +6014,11 @@ static inline sector_t raid5_sync_request(struct mddev *mddev, sector_t sector_n
}
if (mddev->curr_resync < max_sector) /* aborted */
bitmap_end_sync(mddev->bitmap, mddev->curr_resync,
md_bitmap_end_sync(mddev->bitmap, mddev->curr_resync,
&sync_blocks, 1);
else /* completed sync */
conf->fullsync = 0;
bitmap_close_sync(mddev->bitmap);
md_bitmap_close_sync(mddev->bitmap);
return 0;
}
......@@ -6047,7 +6047,7 @@ static inline sector_t raid5_sync_request(struct mddev *mddev, sector_t sector_n
}
if (!test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery) &&
!conf->fullsync &&
!bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 1) &&
!md_bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 1) &&
sync_blocks >= STRIPE_SECTORS) {
/* we can skip this block, and probably more */
sync_blocks /= STRIPE_SECTORS;
......@@ -6055,7 +6055,7 @@ static inline sector_t raid5_sync_request(struct mddev *mddev, sector_t sector_n
return sync_blocks * STRIPE_SECTORS; /* keep things rounded to whole stripes */
}
bitmap_cond_end_sync(mddev->bitmap, sector_nr, false);
md_bitmap_cond_end_sync(mddev->bitmap, sector_nr, false);
sh = raid5_get_active_stripe(conf, sector_nr, 0, 1, 0);
if (sh == NULL) {
......@@ -6078,7 +6078,7 @@ static inline sector_t raid5_sync_request(struct mddev *mddev, sector_t sector_n
}
rcu_read_unlock();
bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, still_degraded);
md_bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, still_degraded);
set_bit(STRIPE_SYNC_REQUESTED, &sh->state);
set_bit(STRIPE_HANDLE, &sh->state);
......@@ -6279,7 +6279,7 @@ static void raid5d(struct md_thread *thread)
/* Now is a good time to flush some bitmap updates */
conf->seq_flush++;
spin_unlock_irq(&conf->device_lock);
bitmap_unplug(mddev->bitmap);
md_bitmap_unplug(mddev->bitmap);
spin_lock_irq(&conf->device_lock);
conf->seq_write = conf->seq_flush;
activate_bit_delay(conf, conf->temp_inactive_list);
......@@ -7734,7 +7734,7 @@ static int raid5_resize(struct mddev *mddev, sector_t sectors)
mddev->array_sectors > newsize)
return -EINVAL;
if (mddev->bitmap) {
int ret = bitmap_resize(mddev->bitmap, sectors, 0, 0);
int ret = md_bitmap_resize(mddev->bitmap, sectors, 0, 0);
if (ret)
return ret;
}
......
include/linux/bitmap.h
View file @ 5d81a787
......@@ -104,6 +104,14 @@
* contain all bit positions from 0 to 'bits' - 1.
*/
/*
* Allocation and deallocation of bitmap.
* Provided in lib/bitmap.c to avoid circular dependency.
*/
extern unsigned long *bitmap_alloc(unsigned int nbits, gfp_t flags);
extern unsigned long *bitmap_zalloc(unsigned int nbits, gfp_t flags);
extern void bitmap_free(const unsigned long *bitmap);
/*
* lib/bitmap.c provides these functions:
*/
......
lib/bitmap.c
View file @ 5d81a787
......@@ -13,6 +13,7 @@
#include <linux/bitops.h>
#include <linux/bug.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/uaccess.h>
......@@ -1128,6 +1129,25 @@ void bitmap_copy_le(unsigned long *dst, const unsigned long *src, unsigned int n
EXPORT_SYMBOL(bitmap_copy_le);
#endif
unsigned long *bitmap_alloc(unsigned int nbits, gfp_t flags)
{
return kmalloc_array(BITS_TO_LONGS(nbits), sizeof(unsigned long),
flags);
}
EXPORT_SYMBOL(bitmap_alloc);
unsigned long *bitmap_zalloc(unsigned int nbits, gfp_t flags)
{
return bitmap_alloc(nbits, flags | __GFP_ZERO);
}
EXPORT_SYMBOL(bitmap_zalloc);
void bitmap_free(const unsigned long *bitmap)
{
kfree(bitmap);
}
EXPORT_SYMBOL(bitmap_free);
#if BITS_PER_LONG == 64
/**
* bitmap_from_arr32 - copy the contents of u32 array of bits to bitmap
......
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