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| author | Wenwei Tao <ww.tao0320@gmail.com> | 2016-03-03 15:06:38 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-03-18 18:10:38 -0700 |
| commit | da1e284919b0b99c5bf0618b6c98cbaf2c17e62e (patch) | |
| tree | ef1d8fe8821376dd57fbd4d3319a747841df38e6 /include/linux/lightnvm.h | |
| parent | 4c9dacb82d5aa36aa2568df60d897f2eb3d8819b (diff) | |
| download | linux-0-day-da1e284919b0b99c5bf0618b6c98cbaf2c17e62e.tar.gz linux-0-day-da1e284919b0b99c5bf0618b6c98cbaf2c17e62e.tar.xz | |
lightnvm: add a bitmap of luns
Add a bitmap of luns to indicate the status
of luns: inuse/available. When create targets
do the necessary check to avoid allocating luns
that are already allocated.
Signed-off-by: Wenwei Tao <ww.tao0320@gmail.com>
Freed dev->lun_map if nvm_core_init later failed in the init process.
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/lightnvm.h')
| -rw-r--r-- | include/linux/lightnvm.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h index b466bd9f2cf8a..0ee2c2c78ffd5 100644 --- a/include/linux/lightnvm.h +++ b/include/linux/lightnvm.h @@ -346,6 +346,7 @@ struct nvm_dev { int nr_luns; unsigned max_pages_per_blk; + unsigned long *lun_map; void *ppalist_pool; struct nvm_id identity; @@ -466,6 +467,8 @@ typedef int (nvmm_submit_io_fn)(struct nvm_dev *, struct nvm_rq *); typedef int (nvmm_erase_blk_fn)(struct nvm_dev *, struct nvm_block *, unsigned long); typedef struct nvm_lun *(nvmm_get_lun_fn)(struct nvm_dev *, int); +typedef int (nvmm_reserve_lun)(struct nvm_dev *, int); +typedef void (nvmm_release_lun)(struct nvm_dev *, int); typedef void (nvmm_lun_info_print_fn)(struct nvm_dev *); typedef int (nvmm_get_area_fn)(struct nvm_dev *, sector_t *, sector_t); @@ -492,6 +495,8 @@ struct nvmm_type { /* Configuration management */ nvmm_get_lun_fn *get_lun; + nvmm_reserve_lun *reserve_lun; + nvmm_release_lun *release_lun; /* Statistics */ nvmm_lun_info_print_fn *lun_info_print; |