diff options
| author | Christoph Hellwig <hch@lst.de> | 2017-11-02 21:29:49 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-11-03 10:31:48 -0600 |
| commit | 96222bcc732d0504363dc772637c50e53b4bd41e (patch) | |
| tree | cb3ac9b2e8a633caceaaedeb4fa6e019925db9cc /include | |
| parent | 8977f563845bdd61fc61c4dfb399270b7d5667c6 (diff) | |
block: add REQ_DRV bit
Set aside a bit in the request/bio flags for driver use.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/blk_types.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index c4c6c8bced2e..1b04085255fb 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -229,6 +229,9 @@ enum req_flag_bits { /* command specific flags for REQ_OP_WRITE_ZEROES: */ __REQ_NOUNMAP, /* do not free blocks when zeroing */ + /* for driver use */ + __REQ_DRV, + __REQ_NR_BITS, /* stops here */ }; @@ -249,6 +252,8 @@ enum req_flag_bits { #define REQ_NOUNMAP (1ULL << __REQ_NOUNMAP) +#define REQ_DRV (1ULL << __REQ_DRV) + #define REQ_FAILFAST_MASK \ (REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER) |