93e9d8e836
Add an internal helper and flag for setting whether a queue has write back caching, or write through (or none). Add a sysfs file to show this as well, and make it changeable from user space. This will replace the (awkward) blk_queue_flush() interface that drivers currently use to inform the block layer of write cache state and capabilities. Signed-off-by: Jens Axboe <axboe@fb.com> Reviewed-by: Christoph Hellwig <hch@lst.de> |
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| .. | ||
| 00-INDEX | ||
| biodoc.txt | ||
| biovecs.txt | ||
| capability.txt | ||
| cfq-iosched.txt | ||
| cmdline-partition.txt | ||
| data-integrity.txt | ||
| deadline-iosched.txt | ||
| ioprio.txt | ||
| null_blk.txt | ||
| pr.txt | ||
| queue-sysfs.txt | ||
| request.txt | ||
| stat.txt | ||
| switching-sched.txt | ||
| writeback_cache_control.txt | ||