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-rw-r--r--fs/btrfs/scrub.c80
1 files changed, 75 insertions, 5 deletions
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 1e3ff87d04..443d2519f0 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -16,7 +16,6 @@
#include "backref.h"
#include "extent_io.h"
#include "dev-replace.h"
-#include "check-integrity.h"
#include "raid56.h"
#include "block-group.h"
#include "zoned.h"
@@ -24,6 +23,7 @@
#include "accessors.h"
#include "file-item.h"
#include "scrub.h"
+#include "raid-stripe-tree.h"
/*
* This is only the first step towards a full-features scrub. It reads all
@@ -897,7 +897,7 @@ static void scrub_stripe_report_errors(struct scrub_ctx *sctx,
ASSERT(stripe->mirror_num >= 1);
ret = btrfs_map_block(fs_info, BTRFS_MAP_GET_READ_MIRRORS,
stripe->logical, &mapped_len, &bioc,
- NULL, NULL, 1);
+ NULL, NULL);
/*
* If we failed, dev will be NULL, and later detailed reports
* will just be skipped.
@@ -1645,12 +1645,77 @@ static void scrub_reset_stripe(struct scrub_stripe *stripe)
}
}
+static void scrub_submit_extent_sector_read(struct scrub_ctx *sctx,
+ struct scrub_stripe *stripe)
+{
+ struct btrfs_fs_info *fs_info = stripe->bg->fs_info;
+ struct btrfs_bio *bbio = NULL;
+ u64 stripe_len = BTRFS_STRIPE_LEN;
+ int mirror = stripe->mirror_num;
+ int i;
+
+ atomic_inc(&stripe->pending_io);
+
+ for_each_set_bit(i, &stripe->extent_sector_bitmap, stripe->nr_sectors) {
+ struct page *page = scrub_stripe_get_page(stripe, i);
+ unsigned int pgoff = scrub_stripe_get_page_offset(stripe, i);
+
+ /* The current sector cannot be merged, submit the bio. */
+ if (bbio &&
+ ((i > 0 &&
+ !test_bit(i - 1, &stripe->extent_sector_bitmap)) ||
+ bbio->bio.bi_iter.bi_size >= stripe_len)) {
+ ASSERT(bbio->bio.bi_iter.bi_size);
+ atomic_inc(&stripe->pending_io);
+ btrfs_submit_bio(bbio, mirror);
+ bbio = NULL;
+ }
+
+ if (!bbio) {
+ struct btrfs_io_stripe io_stripe = {};
+ struct btrfs_io_context *bioc = NULL;
+ const u64 logical = stripe->logical +
+ (i << fs_info->sectorsize_bits);
+ int err;
+
+ bbio = btrfs_bio_alloc(stripe->nr_sectors, REQ_OP_READ,
+ fs_info, scrub_read_endio, stripe);
+ bbio->bio.bi_iter.bi_sector = logical >> SECTOR_SHIFT;
+
+ io_stripe.is_scrub = true;
+ err = btrfs_map_block(fs_info, BTRFS_MAP_READ, logical,
+ &stripe_len, &bioc, &io_stripe,
+ &mirror);
+ btrfs_put_bioc(bioc);
+ if (err) {
+ btrfs_bio_end_io(bbio,
+ errno_to_blk_status(err));
+ return;
+ }
+ }
+
+ __bio_add_page(&bbio->bio, page, fs_info->sectorsize, pgoff);
+ }
+
+ if (bbio) {
+ ASSERT(bbio->bio.bi_iter.bi_size);
+ atomic_inc(&stripe->pending_io);
+ btrfs_submit_bio(bbio, mirror);
+ }
+
+ if (atomic_dec_and_test(&stripe->pending_io)) {
+ wake_up(&stripe->io_wait);
+ INIT_WORK(&stripe->work, scrub_stripe_read_repair_worker);
+ queue_work(stripe->bg->fs_info->scrub_workers, &stripe->work);
+ }
+}
+
static void scrub_submit_initial_read(struct scrub_ctx *sctx,
struct scrub_stripe *stripe)
{
struct btrfs_fs_info *fs_info = sctx->fs_info;
struct btrfs_bio *bbio;
- unsigned int nr_sectors = min_t(u64, BTRFS_STRIPE_LEN, stripe->bg->start +
+ unsigned int nr_sectors = min(BTRFS_STRIPE_LEN, stripe->bg->start +
stripe->bg->length - stripe->logical) >>
fs_info->sectorsize_bits;
int mirror = stripe->mirror_num;
@@ -1659,6 +1724,11 @@ static void scrub_submit_initial_read(struct scrub_ctx *sctx,
ASSERT(stripe->mirror_num > 0);
ASSERT(test_bit(SCRUB_STRIPE_FLAG_INITIALIZED, &stripe->state));
+ if (btrfs_need_stripe_tree_update(fs_info, stripe->bg->flags)) {
+ scrub_submit_extent_sector_read(sctx, stripe);
+ return;
+ }
+
bbio = btrfs_bio_alloc(SCRUB_STRIPE_PAGES, REQ_OP_READ, fs_info,
scrub_read_endio, stripe);
@@ -1969,7 +2039,7 @@ static int scrub_raid56_parity_stripe(struct scrub_ctx *sctx,
btrfs_bio_counter_inc_blocked(fs_info);
ret = btrfs_map_block(fs_info, BTRFS_MAP_WRITE, full_stripe_start,
- &length, &bioc, NULL, NULL, 1);
+ &length, &bioc, NULL, NULL);
if (ret < 0) {
btrfs_put_bioc(bioc);
btrfs_bio_counter_dec(fs_info);
@@ -2736,7 +2806,7 @@ static noinline_for_stack int scrub_supers(struct scrub_ctx *sctx,
if (scrub_dev->fs_devices != fs_info->fs_devices)
gen = scrub_dev->generation;
else
- gen = fs_info->last_trans_committed;
+ gen = btrfs_get_last_trans_committed(fs_info);
for (i = 0; i < BTRFS_SUPER_MIRROR_MAX; i++) {
bytenr = btrfs_sb_offset(i);