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Diffstat (limited to 'fs/btrfs/zoned.c')
-rw-r--r--fs/btrfs/zoned.c201
1 files changed, 159 insertions, 42 deletions
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index b5b0156d5b95..245e813ecd78 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -9,7 +9,6 @@
#include "ctree.h"
#include "volumes.h"
#include "zoned.h"
-#include "rcu-string.h"
#include "disk-io.h"
#include "block-group.h"
#include "dev-replace.h"
@@ -17,6 +16,7 @@
#include "fs.h"
#include "accessors.h"
#include "bio.h"
+#include "transaction.h"
/* Maximum number of zones to report per blkdev_report_zones() call */
#define BTRFS_REPORT_NR_ZONES 4096
@@ -263,9 +263,9 @@ static int btrfs_get_dev_zones(struct btrfs_device *device, u64 pos,
ret = blkdev_report_zones(device->bdev, pos >> SECTOR_SHIFT, *nr_zones,
copy_zone_info_cb, zones);
if (ret < 0) {
- btrfs_err_in_rcu(device->fs_info,
+ btrfs_err(device->fs_info,
"zoned: failed to read zone %llu on %s (devid %llu)",
- pos, rcu_str_deref(device->name),
+ pos, rcu_dereference(device->name),
device->devid);
return ret;
}
@@ -395,16 +395,16 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache)
/* We reject devices with a zone size larger than 8GB */
if (zone_info->zone_size > BTRFS_MAX_ZONE_SIZE) {
- btrfs_err_in_rcu(fs_info,
+ btrfs_err(fs_info,
"zoned: %s: zone size %llu larger than supported maximum %llu",
- rcu_str_deref(device->name),
+ rcu_dereference(device->name),
zone_info->zone_size, BTRFS_MAX_ZONE_SIZE);
ret = -EINVAL;
goto out;
} else if (zone_info->zone_size < BTRFS_MIN_ZONE_SIZE) {
- btrfs_err_in_rcu(fs_info,
+ btrfs_err(fs_info,
"zoned: %s: zone size %llu smaller than supported minimum %u",
- rcu_str_deref(device->name),
+ rcu_dereference(device->name),
zone_info->zone_size, BTRFS_MIN_ZONE_SIZE);
ret = -EINVAL;
goto out;
@@ -418,9 +418,9 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache)
max_active_zones = bdev_max_active_zones(bdev);
if (max_active_zones && max_active_zones < BTRFS_MIN_ACTIVE_ZONES) {
- btrfs_err_in_rcu(fs_info,
+ btrfs_err(fs_info,
"zoned: %s: max active zones %u is too small, need at least %u active zones",
- rcu_str_deref(device->name), max_active_zones,
+ rcu_dereference(device->name), max_active_zones,
BTRFS_MIN_ACTIVE_ZONES);
ret = -EINVAL;
goto out;
@@ -460,9 +460,9 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache)
zone_info->zone_cache = vcalloc(zone_info->nr_zones,
sizeof(struct blk_zone));
if (!zone_info->zone_cache) {
- btrfs_err_in_rcu(device->fs_info,
+ btrfs_err(device->fs_info,
"zoned: failed to allocate zone cache for %s",
- rcu_str_deref(device->name));
+ rcu_dereference(device->name));
ret = -ENOMEM;
goto out;
}
@@ -497,9 +497,9 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache)
}
if (nreported != zone_info->nr_zones) {
- btrfs_err_in_rcu(device->fs_info,
+ btrfs_err(device->fs_info,
"inconsistent number of zones on %s (%u/%u)",
- rcu_str_deref(device->name), nreported,
+ rcu_dereference(device->name), nreported,
zone_info->nr_zones);
ret = -EIO;
goto out;
@@ -507,9 +507,9 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache)
if (max_active_zones) {
if (nactive > max_active_zones) {
- btrfs_err_in_rcu(device->fs_info,
+ btrfs_err(device->fs_info,
"zoned: %u active zones on %s exceeds max_active_zones %u",
- nactive, rcu_str_deref(device->name),
+ nactive, rcu_dereference(device->name),
max_active_zones);
ret = -EIO;
goto out;
@@ -538,7 +538,7 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache)
goto out;
if (nr_zones != BTRFS_NR_SB_LOG_ZONES) {
- btrfs_err_in_rcu(device->fs_info,
+ btrfs_err(device->fs_info,
"zoned: failed to read super block log zone info at devid %llu zone %u",
device->devid, sb_zone);
ret = -EUCLEAN;
@@ -556,7 +556,7 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache)
ret = sb_write_pointer(device->bdev,
&zone_info->sb_zones[sb_pos], &sb_wp);
if (ret != -ENOENT && ret) {
- btrfs_err_in_rcu(device->fs_info,
+ btrfs_err(device->fs_info,
"zoned: super block log zone corrupted devid %llu zone %u",
device->devid, sb_zone);
ret = -EUCLEAN;
@@ -575,9 +575,9 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache)
emulated = "emulated ";
}
- btrfs_info_in_rcu(fs_info,
+ btrfs_info(fs_info,
"%s block device %s, %u %szones of %llu bytes",
- model, rcu_str_deref(device->name), zone_info->nr_zones,
+ model, rcu_dereference(device->name), zone_info->nr_zones,
emulated, zone_info->zone_size);
return 0;
@@ -1182,10 +1182,10 @@ int btrfs_ensure_empty_zones(struct btrfs_device *device, u64 start, u64 size)
continue;
/* Free regions should be empty */
- btrfs_warn_in_rcu(
+ btrfs_warn(
device->fs_info,
"zoned: resetting device %s (devid %llu) zone %llu for allocation",
- rcu_str_deref(device->name), device->devid, pos >> shift);
+ rcu_dereference(device->name), device->devid, pos >> shift);
WARN_ON_ONCE(1);
ret = btrfs_reset_device_zone(device, pos, zinfo->zone_size,
@@ -1345,9 +1345,9 @@ static int btrfs_load_zone_info(struct btrfs_fs_info *fs_info, int zone_idx,
}
if (zone.type == BLK_ZONE_TYPE_CONVENTIONAL) {
- btrfs_err_in_rcu(fs_info,
+ btrfs_err(fs_info,
"zoned: unexpected conventional zone %llu on device %s (devid %llu)",
- zone.start << SECTOR_SHIFT, rcu_str_deref(device->name),
+ zone.start << SECTOR_SHIFT, rcu_dereference(device->name),
device->devid);
up_read(&dev_replace->rwsem);
return -EIO;
@@ -1358,10 +1358,10 @@ static int btrfs_load_zone_info(struct btrfs_fs_info *fs_info, int zone_idx,
switch (zone.cond) {
case BLK_ZONE_COND_OFFLINE:
case BLK_ZONE_COND_READONLY:
- btrfs_err_in_rcu(fs_info,
+ btrfs_err(fs_info,
"zoned: offline/readonly zone %llu on device %s (devid %llu)",
(info->physical >> device->zone_info->zone_size_shift),
- rcu_str_deref(device->name), device->devid);
+ rcu_dereference(device->name), device->devid);
info->alloc_offset = WP_MISSING_DEV;
break;
case BLK_ZONE_COND_EMPTY:
@@ -1403,7 +1403,8 @@ static int btrfs_load_block_group_single(struct btrfs_block_group *bg,
static int btrfs_load_block_group_dup(struct btrfs_block_group *bg,
struct btrfs_chunk_map *map,
struct zone_info *zone_info,
- unsigned long *active)
+ unsigned long *active,
+ u64 last_alloc)
{
struct btrfs_fs_info *fs_info = bg->fs_info;
@@ -1426,6 +1427,13 @@ static int btrfs_load_block_group_dup(struct btrfs_block_group *bg,
zone_info[1].physical);
return -EIO;
}
+
+ if (zone_info[0].alloc_offset == WP_CONVENTIONAL)
+ zone_info[0].alloc_offset = last_alloc;
+
+ if (zone_info[1].alloc_offset == WP_CONVENTIONAL)
+ zone_info[1].alloc_offset = last_alloc;
+
if (zone_info[0].alloc_offset != zone_info[1].alloc_offset) {
btrfs_err(bg->fs_info,
"zoned: write pointer offset mismatch of zones in DUP profile");
@@ -1446,7 +1454,8 @@ static int btrfs_load_block_group_dup(struct btrfs_block_group *bg,
static int btrfs_load_block_group_raid1(struct btrfs_block_group *bg,
struct btrfs_chunk_map *map,
struct zone_info *zone_info,
- unsigned long *active)
+ unsigned long *active,
+ u64 last_alloc)
{
struct btrfs_fs_info *fs_info = bg->fs_info;
int i;
@@ -1461,10 +1470,12 @@ static int btrfs_load_block_group_raid1(struct btrfs_block_group *bg,
bg->zone_capacity = min_not_zero(zone_info[0].capacity, zone_info[1].capacity);
for (i = 0; i < map->num_stripes; i++) {
- if (zone_info[i].alloc_offset == WP_MISSING_DEV ||
- zone_info[i].alloc_offset == WP_CONVENTIONAL)
+ if (zone_info[i].alloc_offset == WP_MISSING_DEV)
continue;
+ if (zone_info[i].alloc_offset == WP_CONVENTIONAL)
+ zone_info[i].alloc_offset = last_alloc;
+
if ((zone_info[0].alloc_offset != zone_info[i].alloc_offset) &&
!btrfs_test_opt(fs_info, DEGRADED)) {
btrfs_err(fs_info,
@@ -1494,7 +1505,8 @@ static int btrfs_load_block_group_raid1(struct btrfs_block_group *bg,
static int btrfs_load_block_group_raid0(struct btrfs_block_group *bg,
struct btrfs_chunk_map *map,
struct zone_info *zone_info,
- unsigned long *active)
+ unsigned long *active,
+ u64 last_alloc)
{
struct btrfs_fs_info *fs_info = bg->fs_info;
@@ -1505,10 +1517,29 @@ static int btrfs_load_block_group_raid0(struct btrfs_block_group *bg,
}
for (int i = 0; i < map->num_stripes; i++) {
- if (zone_info[i].alloc_offset == WP_MISSING_DEV ||
- zone_info[i].alloc_offset == WP_CONVENTIONAL)
+ if (zone_info[i].alloc_offset == WP_MISSING_DEV)
continue;
+ if (zone_info[i].alloc_offset == WP_CONVENTIONAL) {
+ u64 stripe_nr, full_stripe_nr;
+ u64 stripe_offset;
+ int stripe_index;
+
+ stripe_nr = div64_u64(last_alloc, map->stripe_size);
+ stripe_offset = stripe_nr * map->stripe_size;
+ full_stripe_nr = div_u64(stripe_nr, map->num_stripes);
+ div_u64_rem(stripe_nr, map->num_stripes, &stripe_index);
+
+ zone_info[i].alloc_offset =
+ full_stripe_nr * map->stripe_size;
+
+ if (stripe_index > i)
+ zone_info[i].alloc_offset += map->stripe_size;
+ else if (stripe_index == i)
+ zone_info[i].alloc_offset +=
+ (last_alloc - stripe_offset);
+ }
+
if (test_bit(0, active) != test_bit(i, active)) {
if (!btrfs_zone_activate(bg))
return -EIO;
@@ -1526,7 +1557,8 @@ static int btrfs_load_block_group_raid0(struct btrfs_block_group *bg,
static int btrfs_load_block_group_raid10(struct btrfs_block_group *bg,
struct btrfs_chunk_map *map,
struct zone_info *zone_info,
- unsigned long *active)
+ unsigned long *active,
+ u64 last_alloc)
{
struct btrfs_fs_info *fs_info = bg->fs_info;
@@ -1537,8 +1569,7 @@ static int btrfs_load_block_group_raid10(struct btrfs_block_group *bg,
}
for (int i = 0; i < map->num_stripes; i++) {
- if (zone_info[i].alloc_offset == WP_MISSING_DEV ||
- zone_info[i].alloc_offset == WP_CONVENTIONAL)
+ if (zone_info[i].alloc_offset == WP_MISSING_DEV)
continue;
if (test_bit(0, active) != test_bit(i, active)) {
@@ -1549,6 +1580,29 @@ static int btrfs_load_block_group_raid10(struct btrfs_block_group *bg,
set_bit(BLOCK_GROUP_FLAG_ZONE_IS_ACTIVE, &bg->runtime_flags);
}
+ if (zone_info[i].alloc_offset == WP_CONVENTIONAL) {
+ u64 stripe_nr, full_stripe_nr;
+ u64 stripe_offset;
+ int stripe_index;
+
+ stripe_nr = div64_u64(last_alloc, map->stripe_size);
+ stripe_offset = stripe_nr * map->stripe_size;
+ full_stripe_nr = div_u64(stripe_nr,
+ map->num_stripes / map->sub_stripes);
+ div_u64_rem(stripe_nr,
+ (map->num_stripes / map->sub_stripes),
+ &stripe_index);
+
+ zone_info[i].alloc_offset =
+ full_stripe_nr * map->stripe_size;
+
+ if (stripe_index > (i / map->sub_stripes))
+ zone_info[i].alloc_offset += map->stripe_size;
+ else if (stripe_index == (i / map->sub_stripes))
+ zone_info[i].alloc_offset +=
+ (last_alloc - stripe_offset);
+ }
+
if ((i % map->sub_stripes) == 0) {
bg->zone_capacity += zone_info[i].capacity;
bg->alloc_offset += zone_info[i].alloc_offset;
@@ -1637,18 +1691,22 @@ int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new)
ret = btrfs_load_block_group_single(cache, &zone_info[0], active);
break;
case BTRFS_BLOCK_GROUP_DUP:
- ret = btrfs_load_block_group_dup(cache, map, zone_info, active);
+ ret = btrfs_load_block_group_dup(cache, map, zone_info, active,
+ last_alloc);
break;
case BTRFS_BLOCK_GROUP_RAID1:
case BTRFS_BLOCK_GROUP_RAID1C3:
case BTRFS_BLOCK_GROUP_RAID1C4:
- ret = btrfs_load_block_group_raid1(cache, map, zone_info, active);
+ ret = btrfs_load_block_group_raid1(cache, map, zone_info,
+ active, last_alloc);
break;
case BTRFS_BLOCK_GROUP_RAID0:
- ret = btrfs_load_block_group_raid0(cache, map, zone_info, active);
+ ret = btrfs_load_block_group_raid0(cache, map, zone_info,
+ active, last_alloc);
break;
case BTRFS_BLOCK_GROUP_RAID10:
- ret = btrfs_load_block_group_raid10(cache, map, zone_info, active);
+ ret = btrfs_load_block_group_raid10(cache, map, zone_info,
+ active, last_alloc);
break;
case BTRFS_BLOCK_GROUP_RAID5:
case BTRFS_BLOCK_GROUP_RAID6:
@@ -2427,7 +2485,7 @@ void btrfs_schedule_zone_finish_bg(struct btrfs_block_group *bg,
/* For the work */
btrfs_get_block_group(bg);
- atomic_inc(&eb->refs);
+ refcount_inc(&eb->refs);
bg->last_eb = eb;
INIT_WORK(&bg->zone_finish_work, btrfs_zone_finish_endio_workfn);
queue_work(system_unbound_wq, &bg->zone_finish_work);
@@ -2443,6 +2501,66 @@ void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg)
spin_unlock(&fs_info->relocation_bg_lock);
}
+void btrfs_zoned_reserve_data_reloc_bg(struct btrfs_fs_info *fs_info)
+{
+ struct btrfs_space_info *data_sinfo = fs_info->data_sinfo;
+ struct btrfs_space_info *space_info = data_sinfo->sub_group[0];
+ struct btrfs_trans_handle *trans;
+ struct btrfs_block_group *bg;
+ struct list_head *bg_list;
+ u64 alloc_flags;
+ bool initial = false;
+ bool did_chunk_alloc = false;
+ int index;
+ int ret;
+
+ if (!btrfs_is_zoned(fs_info))
+ return;
+
+ if (fs_info->data_reloc_bg)
+ return;
+
+ if (sb_rdonly(fs_info->sb))
+ return;
+
+ ASSERT(space_info->subgroup_id == BTRFS_SUB_GROUP_DATA_RELOC);
+ alloc_flags = btrfs_get_alloc_profile(fs_info, space_info->flags);
+ index = btrfs_bg_flags_to_raid_index(alloc_flags);
+
+ bg_list = &data_sinfo->block_groups[index];
+again:
+ list_for_each_entry(bg, bg_list, list) {
+ if (bg->used > 0)
+ continue;
+
+ if (!initial) {
+ initial = true;
+ continue;
+ }
+
+ fs_info->data_reloc_bg = bg->start;
+ set_bit(BLOCK_GROUP_FLAG_ZONED_DATA_RELOC, &bg->runtime_flags);
+ btrfs_zone_activate(bg);
+
+ return;
+ }
+
+ if (did_chunk_alloc)
+ return;
+
+ trans = btrfs_join_transaction(fs_info->tree_root);
+ if (IS_ERR(trans))
+ return;
+
+ ret = btrfs_chunk_alloc(trans, space_info, alloc_flags, CHUNK_ALLOC_FORCE);
+ btrfs_end_transaction(trans);
+ if (ret == 1) {
+ did_chunk_alloc = true;
+ bg_list = &space_info->block_groups[index];
+ goto again;
+ }
+}
+
void btrfs_free_zone_cache(struct btrfs_fs_info *fs_info)
{
struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
@@ -2465,8 +2583,8 @@ bool btrfs_zoned_should_reclaim(const struct btrfs_fs_info *fs_info)
{
struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
struct btrfs_device *device;
+ u64 total = btrfs_super_total_bytes(fs_info->super_copy);
u64 used = 0;
- u64 total = 0;
u64 factor;
ASSERT(btrfs_is_zoned(fs_info));
@@ -2479,7 +2597,6 @@ bool btrfs_zoned_should_reclaim(const struct btrfs_fs_info *fs_info)
if (!device->bdev)
continue;
- total += device->disk_total_bytes;
used += device->bytes_used;
}
mutex_unlock(&fs_devices->device_list_mutex);
generated by cgit (git 2.34.1) at 2025-07-29 02:49:30 +0000