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Ping QiuandClaude Opus 4.6
80801b0fac
Phase 3 delivers five checkpoints: CP1 Engine Tuning: BlockVolConfig tunables, 256-shard DirtyMap, adaptive group commit (low-watermark immediate flush), WAL pressure handling with backpressure and ErrWALFull timeout. CP2 iSCSI Session Refactor: RX/TX goroutine split with respCh (cap 64), txLoop for serialized response writes, StatSN assignment modes. Login phase stays single-goroutine; full-duplex after login. CP3 Store Integration: BlockVolAdapter (iscsi.BlockDevice interface), BlockVolumeStore management, BlockService in volume_server_block.go, CLI flags (--block.listen/dir/iqn.prefix), sw-block-attach.sh helper. CP5 Concurrency Hardening: WAL reuse guard (LSN validation in ReadLBA), opsOutstanding counter with beginOp/endOp + Close drain, appendWithRetry shared by WriteLBA and TrimLBA, flusher LSN guard in FlushOnce. Bug fixes (P3-BUG-2–11): unbounded pending queue cap, Data-Out timeout, flusher error logging, GroupCommitter panic recovery, Close vs concurrent ops guard, target shutdown race, WAL-full retry vs Close, WRITE SAME(16) for XFS, MODE SENSE(10) + VPD 0xB0/0xB2 for Linux kernel compatibility. 797 tests passing (517 engine + 280 iSCSI), go vet clean. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
package blockvol
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import (
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"github.com/seaweedfs/seaweedfs/weed/storage/blockvol/iscsi"
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)
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// BlockVolAdapter wraps a *BlockVol to implement the iscsi.BlockDevice interface,
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// bridging the BlockVol storage engine to iSCSI target sessions.
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type BlockVolAdapter struct {
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vol *BlockVol
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}
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// NewBlockVolAdapter creates a BlockDevice adapter for the given BlockVol.
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func NewBlockVolAdapter(vol *BlockVol) *BlockVolAdapter {
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return &BlockVolAdapter{vol: vol}
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}
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func (a *BlockVolAdapter) ReadAt(lba uint64, length uint32) ([]byte, error) {
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return a.vol.ReadLBA(lba, length)
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}
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func (a *BlockVolAdapter) WriteAt(lba uint64, data []byte) error {
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return a.vol.WriteLBA(lba, data)
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}
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func (a *BlockVolAdapter) Trim(lba uint64, length uint32) error {
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return a.vol.Trim(lba, length)
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}
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func (a *BlockVolAdapter) SyncCache() error {
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return a.vol.SyncCache()
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}
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func (a *BlockVolAdapter) BlockSize() uint32 {
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return a.vol.Info().BlockSize
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}
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func (a *BlockVolAdapter) VolumeSize() uint64 {
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return a.vol.Info().VolumeSize
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}
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func (a *BlockVolAdapter) IsHealthy() bool {
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return a.vol.Info().Healthy
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}
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// Compile-time check that BlockVolAdapter implements iscsi.BlockDevice.
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var _ iscsi.BlockDevice = (*BlockVolAdapter)(nil)
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