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| author | Christoph Hellwig | 2016-11-01 14:40:08 +0100 |
|---|---|---|
| committer | Jens Axboe | 2016-11-01 16:43:26 +0100 |
| commit | b685d3d65ac791406e0dfd8779cc9b3707fea5a3 (patch) | |
| tree | 3c0697577f4ffcdbd325f2d966c7b998e215c267 /include/linux/blk_types.h | |
| parent | block: don't use REQ_SYNC in the READ_SYNC definition (diff) | |
| download | kernel-qcow2-linux-b685d3d65ac791406e0dfd8779cc9b3707fea5a3.tar.gz kernel-qcow2-linux-b685d3d65ac791406e0dfd8779cc9b3707fea5a3.tar.xz kernel-qcow2-linux-b685d3d65ac791406e0dfd8779cc9b3707fea5a3.zip | |
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>
Diffstat (limited to 'include/linux/blk_types.h')
| -rw-r--r-- | include/linux/blk_types.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 3fa62cabe8d2..107d23d18096 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -216,9 +216,15 @@ static inline bool op_is_write(unsigned int op) return (op & 1); } +/* + * Reads are always treated as synchronous, as are requests with the FUA or + * PREFLUSH flag. Other operations may be marked as synchronous using the + * REQ_SYNC flag. + */ static inline bool op_is_sync(unsigned int op) { - return (op & REQ_OP_MASK) == REQ_OP_READ || (op & REQ_SYNC); + return (op & REQ_OP_MASK) == REQ_OP_READ || + (op & (REQ_SYNC | REQ_FUA | REQ_PREFLUSH)); } typedef unsigned int blk_qc_t; |