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-rw-r--r--fs/btrfs/raid56.c78
1 files changed, 33 insertions, 45 deletions
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index d016d4a79864..d2a9a1ee5361 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -969,8 +969,9 @@ static unsigned long rbio_nr_pages(unsigned long stripe_len, int nr_stripes)
* allocation and initial setup for the btrfs_raid_bio. Not
* this does not allocate any pages for rbio->pages.
*/
-static struct btrfs_raid_bio *alloc_rbio(struct btrfs_root *root,
- struct btrfs_bio *bbio, u64 stripe_len)
+static struct btrfs_raid_bio *alloc_rbio(struct btrfs_fs_info *fs_info,
+ struct btrfs_bio *bbio,
+ u64 stripe_len)
{
struct btrfs_raid_bio *rbio;
int nr_data = 0;
@@ -991,7 +992,7 @@ static struct btrfs_raid_bio *alloc_rbio(struct btrfs_root *root,
INIT_LIST_HEAD(&rbio->stripe_cache);
INIT_LIST_HEAD(&rbio->hash_list);
rbio->bbio = bbio;
- rbio->fs_info = root->fs_info;
+ rbio->fs_info = fs_info;
rbio->stripe_len = stripe_len;
rbio->nr_pages = num_pages;
rbio->real_stripes = real_stripes;
@@ -1144,10 +1145,10 @@ static void validate_rbio_for_rmw(struct btrfs_raid_bio *rbio)
static void index_rbio_pages(struct btrfs_raid_bio *rbio)
{
struct bio *bio;
+ struct bio_vec *bvec;
u64 start;
unsigned long stripe_offset;
unsigned long page_index;
- struct page *p;
int i;
spin_lock_irq(&rbio->bio_list_lock);
@@ -1156,10 +1157,8 @@ static void index_rbio_pages(struct btrfs_raid_bio *rbio)
stripe_offset = start - rbio->bbio->raid_map[0];
page_index = stripe_offset >> PAGE_SHIFT;
- for (i = 0; i < bio->bi_vcnt; i++) {
- p = bio->bi_io_vec[i].bv_page;
- rbio->bio_pages[page_index + i] = p;
- }
+ bio_for_each_segment_all(bvec, bio, i)
+ rbio->bio_pages[page_index + i] = bvec->bv_page;
}
spin_unlock_irq(&rbio->bio_list_lock);
}
@@ -1433,13 +1432,11 @@ static int fail_bio_stripe(struct btrfs_raid_bio *rbio,
*/
static void set_bio_pages_uptodate(struct bio *bio)
{
+ struct bio_vec *bvec;
int i;
- struct page *p;
- for (i = 0; i < bio->bi_vcnt; i++) {
- p = bio->bi_io_vec[i].bv_page;
- SetPageUptodate(p);
- }
+ bio_for_each_segment_all(bvec, bio, i)
+ SetPageUptodate(bvec->bv_page);
}
/*
@@ -1482,11 +1479,8 @@ cleanup:
static void async_rmw_stripe(struct btrfs_raid_bio *rbio)
{
- btrfs_init_work(&rbio->work, btrfs_rmw_helper,
- rmw_work, NULL, NULL);
-
- btrfs_queue_work(rbio->fs_info->rmw_workers,
- &rbio->work);
+ btrfs_init_work(&rbio->work, btrfs_rmw_helper, rmw_work, NULL, NULL);
+ btrfs_queue_work(rbio->fs_info->rmw_workers, &rbio->work);
}
static void async_read_rebuild(struct btrfs_raid_bio *rbio)
@@ -1494,8 +1488,7 @@ static void async_read_rebuild(struct btrfs_raid_bio *rbio)
btrfs_init_work(&rbio->work, btrfs_rmw_helper,
read_rebuild_work, NULL, NULL);
- btrfs_queue_work(rbio->fs_info->rmw_workers,
- &rbio->work);
+ btrfs_queue_work(rbio->fs_info->rmw_workers, &rbio->work);
}
/*
@@ -1577,8 +1570,7 @@ static int raid56_rmw_stripe(struct btrfs_raid_bio *rbio)
bio->bi_end_io = raid_rmw_end_io;
bio_set_op_attrs(bio, REQ_OP_READ, 0);
- btrfs_bio_wq_end_io(rbio->fs_info, bio,
- BTRFS_WQ_ENDIO_RAID56);
+ btrfs_bio_wq_end_io(rbio->fs_info, bio, BTRFS_WQ_ENDIO_RAID56);
submit_bio(bio);
}
@@ -1743,7 +1735,7 @@ static void btrfs_raid_unplug(struct blk_plug_cb *cb, bool from_schedule)
/*
* our main entry point for writes from the rest of the FS.
*/
-int raid56_parity_write(struct btrfs_root *root, struct bio *bio,
+int raid56_parity_write(struct btrfs_fs_info *fs_info, struct bio *bio,
struct btrfs_bio *bbio, u64 stripe_len)
{
struct btrfs_raid_bio *rbio;
@@ -1751,7 +1743,7 @@ int raid56_parity_write(struct btrfs_root *root, struct bio *bio,
struct blk_plug_cb *cb;
int ret;
- rbio = alloc_rbio(root, bbio, stripe_len);
+ rbio = alloc_rbio(fs_info, bbio, stripe_len);
if (IS_ERR(rbio)) {
btrfs_put_bbio(bbio);
return PTR_ERR(rbio);
@@ -1760,7 +1752,7 @@ int raid56_parity_write(struct btrfs_root *root, struct bio *bio,
rbio->bio_list_bytes = bio->bi_iter.bi_size;
rbio->operation = BTRFS_RBIO_WRITE;
- btrfs_bio_counter_inc_noblocked(root->fs_info);
+ btrfs_bio_counter_inc_noblocked(fs_info);
rbio->generic_bio_cnt = 1;
/*
@@ -1770,16 +1762,15 @@ int raid56_parity_write(struct btrfs_root *root, struct bio *bio,
if (rbio_is_full(rbio)) {
ret = full_stripe_write(rbio);
if (ret)
- btrfs_bio_counter_dec(root->fs_info);
+ btrfs_bio_counter_dec(fs_info);
return ret;
}
- cb = blk_check_plugged(btrfs_raid_unplug, root->fs_info,
- sizeof(*plug));
+ cb = blk_check_plugged(btrfs_raid_unplug, fs_info, sizeof(*plug));
if (cb) {
plug = container_of(cb, struct btrfs_plug_cb, cb);
if (!plug->info) {
- plug->info = root->fs_info;
+ plug->info = fs_info;
INIT_LIST_HEAD(&plug->rbio_list);
}
list_add_tail(&rbio->plug_list, &plug->rbio_list);
@@ -1787,7 +1778,7 @@ int raid56_parity_write(struct btrfs_root *root, struct bio *bio,
} else {
ret = __raid56_parity_write(rbio);
if (ret)
- btrfs_bio_counter_dec(root->fs_info);
+ btrfs_bio_counter_dec(fs_info);
}
return ret;
}
@@ -2102,8 +2093,7 @@ static int __raid56_parity_recover(struct btrfs_raid_bio *rbio)
bio->bi_end_io = raid_recover_end_io;
bio_set_op_attrs(bio, REQ_OP_READ, 0);
- btrfs_bio_wq_end_io(rbio->fs_info, bio,
- BTRFS_WQ_ENDIO_RAID56);
+ btrfs_bio_wq_end_io(rbio->fs_info, bio, BTRFS_WQ_ENDIO_RAID56);
submit_bio(bio);
}
@@ -2123,14 +2113,14 @@ cleanup:
* so we assume the bio they send down corresponds to a failed part
* of the drive.
*/
-int raid56_parity_recover(struct btrfs_root *root, struct bio *bio,
+int raid56_parity_recover(struct btrfs_fs_info *fs_info, struct bio *bio,
struct btrfs_bio *bbio, u64 stripe_len,
int mirror_num, int generic_io)
{
struct btrfs_raid_bio *rbio;
int ret;
- rbio = alloc_rbio(root, bbio, stripe_len);
+ rbio = alloc_rbio(fs_info, bbio, stripe_len);
if (IS_ERR(rbio)) {
if (generic_io)
btrfs_put_bbio(bbio);
@@ -2143,7 +2133,7 @@ int raid56_parity_recover(struct btrfs_root *root, struct bio *bio,
rbio->faila = find_logical_bio_stripe(rbio, bio);
if (rbio->faila == -1) {
- btrfs_warn(root->fs_info,
+ btrfs_warn(fs_info,
"%s could not find the bad stripe in raid56 so that we cannot recover any more (bio has logical %llu len %llu, bbio has map_type %llu)",
__func__, (u64)bio->bi_iter.bi_sector << 9,
(u64)bio->bi_iter.bi_size, bbio->map_type);
@@ -2154,7 +2144,7 @@ int raid56_parity_recover(struct btrfs_root *root, struct bio *bio,
}
if (generic_io) {
- btrfs_bio_counter_inc_noblocked(root->fs_info);
+ btrfs_bio_counter_inc_noblocked(fs_info);
rbio->generic_bio_cnt = 1;
} else {
btrfs_get_bbio(bbio);
@@ -2212,7 +2202,7 @@ static void read_rebuild_work(struct btrfs_work *work)
*/
struct btrfs_raid_bio *
-raid56_parity_alloc_scrub_rbio(struct btrfs_root *root, struct bio *bio,
+raid56_parity_alloc_scrub_rbio(struct btrfs_fs_info *fs_info, struct bio *bio,
struct btrfs_bio *bbio, u64 stripe_len,
struct btrfs_device *scrub_dev,
unsigned long *dbitmap, int stripe_nsectors)
@@ -2220,7 +2210,7 @@ raid56_parity_alloc_scrub_rbio(struct btrfs_root *root, struct bio *bio,
struct btrfs_raid_bio *rbio;
int i;
- rbio = alloc_rbio(root, bbio, stripe_len);
+ rbio = alloc_rbio(fs_info, bbio, stripe_len);
if (IS_ERR(rbio))
return NULL;
bio_list_add(&rbio->bio_list, bio);
@@ -2239,7 +2229,7 @@ raid56_parity_alloc_scrub_rbio(struct btrfs_root *root, struct bio *bio,
}
/* Now we just support the sectorsize equals to page size */
- ASSERT(root->sectorsize == PAGE_SIZE);
+ ASSERT(fs_info->sectorsize == PAGE_SIZE);
ASSERT(rbio->stripe_npages == stripe_nsectors);
bitmap_copy(rbio->dbitmap, dbitmap, stripe_nsectors);
@@ -2621,8 +2611,7 @@ static void raid56_parity_scrub_stripe(struct btrfs_raid_bio *rbio)
bio->bi_end_io = raid56_parity_scrub_end_io;
bio_set_op_attrs(bio, REQ_OP_READ, 0);
- btrfs_bio_wq_end_io(rbio->fs_info, bio,
- BTRFS_WQ_ENDIO_RAID56);
+ btrfs_bio_wq_end_io(rbio->fs_info, bio, BTRFS_WQ_ENDIO_RAID56);
submit_bio(bio);
}
@@ -2650,8 +2639,7 @@ static void async_scrub_parity(struct btrfs_raid_bio *rbio)
btrfs_init_work(&rbio->work, btrfs_rmw_helper,
scrub_parity_work, NULL, NULL);
- btrfs_queue_work(rbio->fs_info->rmw_workers,
- &rbio->work);
+ btrfs_queue_work(rbio->fs_info->rmw_workers, &rbio->work);
}
void raid56_parity_submit_scrub_rbio(struct btrfs_raid_bio *rbio)
@@ -2663,12 +2651,12 @@ void raid56_parity_submit_scrub_rbio(struct btrfs_raid_bio *rbio)
/* The following code is used for dev replace of a missing RAID 5/6 device. */
struct btrfs_raid_bio *
-raid56_alloc_missing_rbio(struct btrfs_root *root, struct bio *bio,
+raid56_alloc_missing_rbio(struct btrfs_fs_info *fs_info, struct bio *bio,
struct btrfs_bio *bbio, u64 length)
{
struct btrfs_raid_bio *rbio;
- rbio = alloc_rbio(root, bbio, length);
+ rbio = alloc_rbio(fs_info, bbio, length);
if (IS_ERR(rbio))
return NULL;
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