de93434fcf
The gen_lun abstraction in the generic media manager was conceived on the assumption that a single target would instantiated on top of it. This has complicated target design to implement multi-instances. Remove this abstraction and move its logic to nvm_lun, which manages physical lun geometry and operations. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
44 lines
1 KiB
C
44 lines
1 KiB
C
/*
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* Copyright: Matias Bjorling <mb@bjorling.me>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version
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* 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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*/
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#ifndef GENNVM_H_
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#define GENNVM_H_
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#include <linux/module.h>
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#include <linux/vmalloc.h>
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#include <linux/lightnvm.h>
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struct gen_dev {
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struct nvm_dev *dev;
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int nr_luns;
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struct nvm_lun *luns;
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struct list_head area_list;
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struct mutex lock;
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struct list_head targets;
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};
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struct gen_area {
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struct list_head list;
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sector_t begin;
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sector_t end; /* end is excluded */
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};
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#define gen_for_each_lun(bm, lun, i) \
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for ((i) = 0, lun = &(bm)->luns[0]; \
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(i) < (bm)->nr_luns; (i)++, lun = &(bm)->luns[(i)])
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#endif /* GENNVM_H_ */
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