diff options
| author | Jens Axboe <axboe@suse.de> | 2003-05-26 22:21:06 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@penguin.transmeta.com> | 2003-05-26 22:21:06 -0700 |
| commit | b88ac404cfa31d66f4c888af5e9362d4a244021a (patch) | |
| tree | 352e954b89958dd32b2a7de4cac57064300adcd3 /include/linux/blkdev.h | |
| parent | dccd87acc33583c8ee8dd0d2780694540561bb66 (diff) | |
[PATCH] blk layer tag resize
This allows drivers to resize their tag depth at run-time.
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index aa38c5f33c21..03691501d68f 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -179,7 +179,8 @@ struct blk_queue_tag { unsigned long *tag_map; /* bit map of free/busy tags */ struct list_head busy_list; /* fifo list of busy tags */ int busy; /* current depth */ - int max_depth; + int max_depth; /* what we will send to device */ + int real_max_depth; /* what the array can hold */ }; struct request_queue @@ -452,6 +453,7 @@ extern struct request *blk_queue_find_tag(request_queue_t *, int); extern void blk_queue_end_tag(request_queue_t *, struct request *); extern int blk_queue_init_tags(request_queue_t *, int); extern void blk_queue_free_tags(request_queue_t *); +extern int blk_queue_resize_tags(request_queue_t *, int); extern void blk_queue_invalidate_tags(request_queue_t *); extern void blk_congestion_wait(int rw, long timeout); |