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block: treat REQ_FUA and REQ_PREFLUSH as synchronous
Instead of requiring everyone to specify the REQ_SYNC flag aѕ well. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
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@ -216,9 +216,15 @@ static inline bool op_is_write(unsigned int op)
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return (op & 1);
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return (op & 1);
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}
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}
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/*
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* Reads are always treated as synchronous, as are requests with the FUA or
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* PREFLUSH flag. Other operations may be marked as synchronous using the
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* REQ_SYNC flag.
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*/
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static inline bool op_is_sync(unsigned int op)
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static inline bool op_is_sync(unsigned int op)
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{
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{
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return (op & REQ_OP_MASK) == REQ_OP_READ || (op & REQ_SYNC);
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return (op & REQ_OP_MASK) == REQ_OP_READ ||
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(op & (REQ_SYNC | REQ_FUA | REQ_PREFLUSH));
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}
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}
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typedef unsigned int blk_qc_t;
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typedef unsigned int blk_qc_t;
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@ -199,9 +199,9 @@ typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
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#define READ_SYNC 0
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#define READ_SYNC 0
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#define WRITE_SYNC (REQ_SYNC | REQ_NOIDLE)
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#define WRITE_SYNC (REQ_SYNC | REQ_NOIDLE)
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#define WRITE_ODIRECT REQ_SYNC
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#define WRITE_ODIRECT REQ_SYNC
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#define WRITE_FLUSH (REQ_SYNC | REQ_NOIDLE | REQ_PREFLUSH)
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#define WRITE_FLUSH (REQ_NOIDLE | REQ_PREFLUSH)
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#define WRITE_FUA (REQ_SYNC | REQ_NOIDLE | REQ_FUA)
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#define WRITE_FUA (REQ_NOIDLE | REQ_FUA)
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#define WRITE_FLUSH_FUA (REQ_SYNC | REQ_NOIDLE | REQ_PREFLUSH | REQ_FUA)
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#define WRITE_FLUSH_FUA (REQ_NOIDLE | REQ_PREFLUSH | REQ_FUA)
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/*
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/*
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* Attribute flags. These should be or-ed together to figure out what
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* Attribute flags. These should be or-ed together to figure out what
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