bcachefs: extent_ptr_invalid() -> bch2_dev_rcu()
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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3858aa4268
commit
8feecbed24
1 changed files with 19 additions and 11 deletions
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@ -1083,9 +1083,6 @@ static int extent_ptr_invalid(struct bch_fs *c,
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struct printbuf *err)
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{
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struct bkey_ptrs_c ptrs = bch2_bkey_ptrs_c(k);
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u64 bucket;
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u32 bucket_offset;
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struct bch_dev *ca;
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int ret = 0;
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if (!bch2_dev_exists(c, ptr->dev)) {
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@ -1101,24 +1098,35 @@ static int extent_ptr_invalid(struct bch_fs *c,
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"pointer to invalid device (%u)", ptr->dev);
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}
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ca = bch2_dev_bkey_exists(c, ptr->dev);
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rcu_read_lock();
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struct bch_dev *ca = bch2_dev_rcu(c, ptr->dev);
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if (!ca) {
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rcu_read_unlock();
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return 0;
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}
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u32 bucket_offset;
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u64 bucket = sector_to_bucket_and_offset(ca, ptr->offset, &bucket_offset);
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unsigned first_bucket = ca->mi.first_bucket;
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u64 nbuckets = ca->mi.nbuckets;
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unsigned bucket_size = ca->mi.bucket_size;
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rcu_read_unlock();
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bkey_for_each_ptr(ptrs, ptr2)
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bkey_fsck_err_on(ptr != ptr2 && ptr->dev == ptr2->dev, c, err,
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ptr_to_duplicate_device,
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"multiple pointers to same device (%u)", ptr->dev);
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bucket = sector_to_bucket_and_offset(ca, ptr->offset, &bucket_offset);
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bkey_fsck_err_on(bucket >= ca->mi.nbuckets, c, err,
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bkey_fsck_err_on(bucket >= nbuckets, c, err,
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ptr_after_last_bucket,
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"pointer past last bucket (%llu > %llu)", bucket, ca->mi.nbuckets);
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bkey_fsck_err_on(ptr->offset < bucket_to_sector(ca, ca->mi.first_bucket), c, err,
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"pointer past last bucket (%llu > %llu)", bucket, nbuckets);
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bkey_fsck_err_on(bucket < first_bucket, c, err,
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ptr_before_first_bucket,
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"pointer before first bucket (%llu < %u)", bucket, ca->mi.first_bucket);
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bkey_fsck_err_on(bucket_offset + size_ondisk > ca->mi.bucket_size, c, err,
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"pointer before first bucket (%llu < %u)", bucket, first_bucket);
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bkey_fsck_err_on(bucket_offset + size_ondisk > bucket_size, c, err,
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ptr_spans_multiple_buckets,
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"pointer spans multiple buckets (%u + %u > %u)",
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bucket_offset, size_ondisk, ca->mi.bucket_size);
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bucket_offset, size_ondisk, bucket_size);
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fsck_err:
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return ret;
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}
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