btrfs: root->fs_info cleanup, use fs_info->dev_root everywhere
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 589d792..ed70246 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -171,7 +171,7 @@ struct scrub_wr_ctx {
struct scrub_ctx {
struct scrub_bio *bios[SCRUB_BIOS_PER_SCTX];
- struct btrfs_root *dev_root;
+ struct btrfs_fs_info *fs_info;
int first_free;
int curr;
atomic_t bios_in_flight;
@@ -356,7 +356,7 @@ static void scrub_blocked_if_needed(struct btrfs_fs_info *fs_info)
*/
static void scrub_pending_trans_workers_inc(struct scrub_ctx *sctx)
{
- struct btrfs_fs_info *fs_info = sctx->dev_root->fs_info;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
atomic_inc(&sctx->refs);
/*
@@ -388,7 +388,7 @@ static void scrub_pending_trans_workers_inc(struct scrub_ctx *sctx)
/* used for workers that require transaction commits */
static void scrub_pending_trans_workers_dec(struct scrub_ctx *sctx)
{
- struct btrfs_fs_info *fs_info = sctx->dev_root->fs_info;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
/*
* see scrub_pending_trans_workers_inc() why we're pretending
@@ -458,7 +458,7 @@ struct scrub_ctx *scrub_setup_ctx(struct btrfs_device *dev, int is_dev_replace)
{
struct scrub_ctx *sctx;
int i;
- struct btrfs_fs_info *fs_info = dev->dev_root->fs_info;
+ struct btrfs_fs_info *fs_info = dev->fs_info;
int ret;
sctx = kzalloc(sizeof(*sctx), GFP_KERNEL);
@@ -468,7 +468,7 @@ struct scrub_ctx *scrub_setup_ctx(struct btrfs_device *dev, int is_dev_replace)
sctx->is_dev_replace = is_dev_replace;
sctx->pages_per_rd_bio = SCRUB_PAGES_PER_RD_BIO;
sctx->curr = -1;
- sctx->dev_root = dev->dev_root;
+ sctx->fs_info = dev->fs_info;
for (i = 0; i < SCRUB_BIOS_PER_SCTX; ++i) {
struct scrub_bio *sbio;
@@ -489,8 +489,8 @@ struct scrub_ctx *scrub_setup_ctx(struct btrfs_device *dev, int is_dev_replace)
sctx->bios[i]->next_free = -1;
}
sctx->first_free = 0;
- sctx->nodesize = dev->dev_root->nodesize;
- sctx->sectorsize = dev->dev_root->sectorsize;
+ sctx->nodesize = dev->fs_info->dev_root->nodesize;
+ sctx->sectorsize = dev->fs_info->dev_root->sectorsize;
atomic_set(&sctx->bios_in_flight, 0);
atomic_set(&sctx->workers_pending, 0);
atomic_set(&sctx->cancel_req, 0);
@@ -524,7 +524,7 @@ static int scrub_print_warning_inode(u64 inum, u64 offset, u64 root,
struct extent_buffer *eb;
struct btrfs_inode_item *inode_item;
struct scrub_warning *swarn = warn_ctx;
- struct btrfs_fs_info *fs_info = swarn->dev->dev_root->fs_info;
+ struct btrfs_fs_info *fs_info = swarn->dev->fs_info;
struct inode_fs_paths *ipath = NULL;
struct btrfs_root *local_root;
struct btrfs_key root_key;
@@ -618,7 +618,7 @@ static void scrub_print_warning(const char *errstr, struct scrub_block *sblock)
WARN_ON(sblock->page_count < 1);
dev = sblock->pagev[0]->dev;
- fs_info = sblock->sctx->dev_root->fs_info;
+ fs_info = sblock->sctx->fs_info;
path = btrfs_alloc_path();
if (!path)
@@ -843,10 +843,9 @@ static void scrub_fixup_nodatasum(struct btrfs_work *work)
spin_lock(&sctx->stat_lock);
++sctx->stat.uncorrectable_errors;
spin_unlock(&sctx->stat_lock);
- btrfs_dev_replace_stats_inc(
- &sctx->dev_root->fs_info->dev_replace.
- num_uncorrectable_read_errors);
- btrfs_err_rl_in_rcu(sctx->dev_root->fs_info,
+ btrfs_dev_replace_stats_inc(&sctx->fs_info->dev_replace.
+ num_uncorrectable_read_errors);
+ btrfs_err_rl_in_rcu(sctx->fs_info,
"unable to fixup (nodatasum) error at logical %llu on dev %s",
fixup->logical, rcu_str_deref(fixup->dev->name));
}
@@ -898,7 +897,7 @@ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check)
DEFAULT_RATELIMIT_BURST);
BUG_ON(sblock_to_check->page_count < 1);
- fs_info = sctx->dev_root->fs_info;
+ fs_info = sctx->fs_info;
if (sblock_to_check->pagev[0]->flags & BTRFS_EXTENT_FLAG_SUPER) {
/*
* if we find an error in a super block, we just report it.
@@ -1177,8 +1176,7 @@ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check)
if (scrub_write_page_to_dev_replace(sblock_other,
page_num) != 0) {
btrfs_dev_replace_stats_inc(
- &sctx->dev_root->
- fs_info->dev_replace.
+ &sctx->fs_info->dev_replace.
num_write_errors);
success = 0;
}
@@ -1302,7 +1300,7 @@ static int scrub_setup_recheck_block(struct scrub_block *original_sblock,
struct scrub_block *sblocks_for_recheck)
{
struct scrub_ctx *sctx = original_sblock->sctx;
- struct btrfs_fs_info *fs_info = sctx->dev_root->fs_info;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
u64 length = original_sblock->page_count * PAGE_SIZE;
u64 logical = original_sblock->pagev[0]->logical;
u64 generation = original_sblock->pagev[0]->generation;
@@ -1574,7 +1572,7 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad,
int ret;
if (!page_bad->dev->bdev) {
- btrfs_warn_rl(sblock_bad->sctx->dev_root->fs_info,
+ btrfs_warn_rl(sblock_bad->sctx->fs_info,
"scrub_repair_page_from_good_copy(bdev == NULL) is unexpected");
return -EIO;
}
@@ -1596,7 +1594,7 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad,
btrfs_dev_stat_inc_and_print(page_bad->dev,
BTRFS_DEV_STAT_WRITE_ERRS);
btrfs_dev_replace_stats_inc(
- &sblock_bad->sctx->dev_root->fs_info->
+ &sblock_bad->sctx->fs_info->
dev_replace.num_write_errors);
bio_put(bio);
return -EIO;
@@ -1624,7 +1622,7 @@ static void scrub_write_block_to_dev_replace(struct scrub_block *sblock)
ret = scrub_write_page_to_dev_replace(sblock, page_num);
if (ret)
btrfs_dev_replace_stats_inc(
- &sblock->sctx->dev_root->fs_info->dev_replace.
+ &sblock->sctx->fs_info->dev_replace.
num_write_errors);
}
}
@@ -1740,7 +1738,7 @@ static void scrub_wr_submit(struct scrub_ctx *sctx)
static void scrub_wr_bio_end_io(struct bio *bio)
{
struct scrub_bio *sbio = bio->bi_private;
- struct btrfs_fs_info *fs_info = sbio->dev->dev_root->fs_info;
+ struct btrfs_fs_info *fs_info = sbio->dev->fs_info;
sbio->err = bio->bi_error;
sbio->bio = bio;
@@ -1759,7 +1757,7 @@ static void scrub_wr_bio_end_io_worker(struct btrfs_work *work)
WARN_ON(sbio->page_count > SCRUB_PAGES_PER_WR_BIO);
if (sbio->err) {
struct btrfs_dev_replace *dev_replace =
- &sbio->sctx->dev_root->fs_info->dev_replace;
+ &sbio->sctx->fs_info->dev_replace;
for (i = 0; i < sbio->page_count; i++) {
struct scrub_page *spage = sbio->pagev[i];
@@ -1859,7 +1857,7 @@ static int scrub_checksum_tree_block(struct scrub_block *sblock)
{
struct scrub_ctx *sctx = sblock->sctx;
struct btrfs_header *h;
- struct btrfs_root *root = sctx->dev_root;
+ struct btrfs_root *root = sctx->fs_info->dev_root;
struct btrfs_fs_info *fs_info = root->fs_info;
u8 calculated_csum[BTRFS_CSUM_SIZE];
u8 on_disk_csum[BTRFS_CSUM_SIZE];
@@ -2126,7 +2124,7 @@ static int scrub_add_page_to_rd_bio(struct scrub_ctx *sctx,
static void scrub_missing_raid56_end_io(struct bio *bio)
{
struct scrub_block *sblock = bio->bi_private;
- struct btrfs_fs_info *fs_info = sblock->sctx->dev_root->fs_info;
+ struct btrfs_fs_info *fs_info = sblock->sctx->fs_info;
if (bio->bi_error)
sblock->no_io_error_seen = 0;
@@ -2153,14 +2151,14 @@ static void scrub_missing_raid56_worker(struct btrfs_work *work)
spin_lock(&sctx->stat_lock);
sctx->stat.read_errors++;
spin_unlock(&sctx->stat_lock);
- btrfs_err_rl_in_rcu(sctx->dev_root->fs_info,
+ btrfs_err_rl_in_rcu(sctx->fs_info,
"IO error rebuilding logical %llu for dev %s",
logical, rcu_str_deref(dev->name));
} else if (sblock->header_error || sblock->checksum_error) {
spin_lock(&sctx->stat_lock);
sctx->stat.uncorrectable_errors++;
spin_unlock(&sctx->stat_lock);
- btrfs_err_rl_in_rcu(sctx->dev_root->fs_info,
+ btrfs_err_rl_in_rcu(sctx->fs_info,
"failed to rebuild valid logical %llu for dev %s",
logical, rcu_str_deref(dev->name));
} else {
@@ -2182,7 +2180,8 @@ static void scrub_missing_raid56_worker(struct btrfs_work *work)
static void scrub_missing_raid56_pages(struct scrub_block *sblock)
{
struct scrub_ctx *sctx = sblock->sctx;
- struct btrfs_fs_info *fs_info = sctx->dev_root->fs_info;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
+ struct btrfs_root *dev_root = fs_info->dev_root;
u64 length = sblock->page_count * PAGE_SIZE;
u64 logical = sblock->pagev[0]->logical;
struct btrfs_bio *bbio = NULL;
@@ -2215,7 +2214,7 @@ static void scrub_missing_raid56_pages(struct scrub_block *sblock)
bio->bi_private = sblock;
bio->bi_end_io = scrub_missing_raid56_end_io;
- rbio = raid56_alloc_missing_rbio(sctx->dev_root, bio, bbio, length);
+ rbio = raid56_alloc_missing_rbio(dev_root, bio, bbio, length);
if (!rbio)
goto rbio_out;
@@ -2334,7 +2333,7 @@ static int scrub_pages(struct scrub_ctx *sctx, u64 logical, u64 len,
static void scrub_bio_end_io(struct bio *bio)
{
struct scrub_bio *sbio = bio->bi_private;
- struct btrfs_fs_info *fs_info = sbio->dev->dev_root->fs_info;
+ struct btrfs_fs_info *fs_info = sbio->dev->fs_info;
sbio->err = bio->bi_error;
sbio->bio = bio;
@@ -2391,7 +2390,7 @@ static inline void __scrub_mark_bitmap(struct scrub_parity *sparity,
{
u32 offset;
int nsectors;
- int sectorsize = sparity->sctx->dev_root->sectorsize;
+ int sectorsize = sparity->sctx->fs_info->dev_root->sectorsize;
if (len >= sparity->stripe_len) {
bitmap_set(bitmap, 0, sparity->nsectors);
@@ -2759,13 +2758,14 @@ static void scrub_parity_bio_endio(struct bio *bio)
btrfs_init_work(&sparity->work, btrfs_scrubparity_helper,
scrub_parity_bio_endio_worker, NULL, NULL);
- btrfs_queue_work(sparity->sctx->dev_root->fs_info->scrub_parity_workers,
+ btrfs_queue_work(sparity->sctx->fs_info->scrub_parity_workers,
&sparity->work);
}
static void scrub_parity_check_and_repair(struct scrub_parity *sparity)
{
struct scrub_ctx *sctx = sparity->sctx;
+ struct btrfs_root *dev_root = sctx->fs_info->dev_root;
struct bio *bio;
struct btrfs_raid_bio *rbio;
struct scrub_page *spage;
@@ -2778,7 +2778,7 @@ static void scrub_parity_check_and_repair(struct scrub_parity *sparity)
goto out;
length = sparity->logic_end - sparity->logic_start;
- ret = btrfs_map_sblock(sctx->dev_root->fs_info, BTRFS_MAP_WRITE,
+ ret = btrfs_map_sblock(sctx->fs_info, BTRFS_MAP_WRITE,
sparity->logic_start,
&length, &bbio, 0, 1);
if (ret || !bbio || !bbio->raid_map)
@@ -2792,7 +2792,7 @@ static void scrub_parity_check_and_repair(struct scrub_parity *sparity)
bio->bi_private = sparity;
bio->bi_end_io = scrub_parity_bio_endio;
- rbio = raid56_parity_alloc_scrub_rbio(sctx->dev_root, bio, bbio,
+ rbio = raid56_parity_alloc_scrub_rbio(dev_root, bio, bbio,
length, sparity->scrub_dev,
sparity->dbitmap,
sparity->nsectors);
@@ -2844,7 +2844,7 @@ static noinline_for_stack int scrub_raid56_parity(struct scrub_ctx *sctx,
u64 logic_start,
u64 logic_end)
{
- struct btrfs_fs_info *fs_info = sctx->dev_root->fs_info;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
struct btrfs_root *root = fs_info->extent_root;
struct btrfs_root *csum_root = fs_info->csum_root;
struct btrfs_extent_item *extent;
@@ -3069,7 +3069,7 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
int is_dev_replace)
{
struct btrfs_path *path, *ppath;
- struct btrfs_fs_info *fs_info = sctx->dev_root->fs_info;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
struct btrfs_root *root = fs_info->extent_root;
struct btrfs_root *csum_root = fs_info->csum_root;
struct btrfs_extent_item *extent;
@@ -3443,8 +3443,8 @@ static noinline_for_stack int scrub_chunk(struct scrub_ctx *sctx,
struct btrfs_block_group_cache *cache,
int is_dev_replace)
{
- struct btrfs_mapping_tree *map_tree =
- &sctx->dev_root->fs_info->mapping_tree;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
+ struct btrfs_mapping_tree *map_tree = &fs_info->mapping_tree;
struct map_lookup *map;
struct extent_map *em;
int i;
@@ -3497,7 +3497,7 @@ int scrub_enumerate_chunks(struct scrub_ctx *sctx,
{
struct btrfs_dev_extent *dev_extent = NULL;
struct btrfs_path *path;
- struct btrfs_root *root = sctx->dev_root;
+ struct btrfs_root *root = sctx->fs_info->dev_root;
struct btrfs_fs_info *fs_info = root->fs_info;
u64 length;
u64 chunk_offset;
@@ -3747,7 +3747,7 @@ static noinline_for_stack int scrub_supers(struct scrub_ctx *sctx,
u64 bytenr;
u64 gen;
int ret;
- struct btrfs_root *root = sctx->dev_root;
+ struct btrfs_root *root = sctx->fs_info->dev_root;
if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))
return -EIO;
@@ -4123,7 +4123,7 @@ static int copy_nocow_pages(struct scrub_ctx *sctx, u64 logical, u64 len,
int mirror_num, u64 physical_for_dev_replace)
{
struct scrub_copy_nocow_ctx *nocow_ctx;
- struct btrfs_fs_info *fs_info = sctx->dev_root->fs_info;
+ struct btrfs_fs_info *fs_info = sctx->fs_info;
nocow_ctx = kzalloc(sizeof(*nocow_ctx), GFP_NOFS);
if (!nocow_ctx) {
@@ -4182,7 +4182,7 @@ static void copy_nocow_pages_worker(struct btrfs_work *work)
struct btrfs_root *root;
int not_written = 0;
- fs_info = sctx->dev_root->fs_info;
+ fs_info = sctx->fs_info;
root = fs_info->extent_root;
path = btrfs_alloc_path();
@@ -4297,7 +4297,7 @@ static int check_extent_to_block(struct inode *inode, u64 start, u64 len,
static int copy_nocow_pages_for_inode(u64 inum, u64 offset, u64 root,
struct scrub_copy_nocow_ctx *nocow_ctx)
{
- struct btrfs_fs_info *fs_info = nocow_ctx->sctx->dev_root->fs_info;
+ struct btrfs_fs_info *fs_info = nocow_ctx->sctx->fs_info;
struct btrfs_key key;
struct inode *inode;
struct page *page;
@@ -4427,7 +4427,7 @@ static int write_page_nocow(struct scrub_ctx *sctx,
if (!dev)
return -EIO;
if (!dev->bdev) {
- btrfs_warn_rl(dev->dev_root->fs_info,
+ btrfs_warn_rl(dev->fs_info,
"scrub write_page_nocow(bdev == NULL) is unexpected");
return -EIO;
}