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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-03-08 16:30:55 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-03-08 16:30:55 -0700 |
| commit | d15c22e78674f9a5bc0de0932a43abe1aafae303 (patch) | |
| tree | 3e4198c44bd2d9184e91647346c66aa95e28f843 /include/linux/blkdev.h | |
| parent | 0f4954819fb6f840d46076f0dbd313ef5da48f5d (diff) | |
| parent | fec6c6fec3e20637bee5d276fb61dd8b49a3f9cc (diff) | |
| download | linux-d15c22e78674f9a5bc0de0932a43abe1aafae303.tar.gz linux-d15c22e78674f9a5bc0de0932a43abe1aafae303.tar.bz2 linux-d15c22e78674f9a5bc0de0932a43abe1aafae303.zip | |
Merge commit 'v2.6.29-rc7' into next
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 044467ef7b11..465d6babc847 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -108,6 +108,7 @@ enum rq_flag_bits { __REQ_RW_META, /* metadata io request */ __REQ_COPY_USER, /* contains copies of user pages */ __REQ_INTEGRITY, /* integrity metadata has been remapped */ + __REQ_UNPLUG, /* unplug queue on submission */ __REQ_NR_BITS, /* stops here */ }; @@ -134,6 +135,7 @@ enum rq_flag_bits { #define REQ_RW_META (1 << __REQ_RW_META) #define REQ_COPY_USER (1 << __REQ_COPY_USER) #define REQ_INTEGRITY (1 << __REQ_INTEGRITY) +#define REQ_UNPLUG (1 << __REQ_UNPLUG) #define BLK_MAX_CDB 16 @@ -449,6 +451,11 @@ struct request_queue #define QUEUE_FLAG_STACKABLE 13 /* supports request stacking */ #define QUEUE_FLAG_NONROT 14 /* non-rotational device (SSD) */ #define QUEUE_FLAG_VIRT QUEUE_FLAG_NONROT /* paravirt device */ +#define QUEUE_FLAG_IO_STAT 15 /* do IO stats */ + +#define QUEUE_FLAG_DEFAULT ((1 << QUEUE_FLAG_IO_STAT) | \ + (1 << QUEUE_FLAG_CLUSTER) | \ + (1 << QUEUE_FLAG_STACKABLE)) static inline int queue_is_locked(struct request_queue *q) { @@ -565,6 +572,7 @@ enum { #define blk_queue_stopped(q) test_bit(QUEUE_FLAG_STOPPED, &(q)->queue_flags) #define blk_queue_nomerges(q) test_bit(QUEUE_FLAG_NOMERGES, &(q)->queue_flags) #define blk_queue_nonrot(q) test_bit(QUEUE_FLAG_NONROT, &(q)->queue_flags) +#define blk_queue_io_stat(q) test_bit(QUEUE_FLAG_IO_STAT, &(q)->queue_flags) #define blk_queue_flushing(q) ((q)->ordseq) #define blk_queue_stackable(q) \ test_bit(QUEUE_FLAG_STACKABLE, &(q)->queue_flags) @@ -700,6 +708,8 @@ struct req_iterator { }; /* This should not be used directly - use rq_for_each_segment */ +#define for_each_bio(_bio) \ + for (; _bio; _bio = _bio->bi_next) #define __rq_for_each_bio(_bio, rq) \ if ((rq->bio)) \ for (_bio = (rq)->bio; _bio; _bio = _bio->bi_next) |