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62 lines
2.2 KiB
62 lines
2.2 KiB
/* |
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* Copyright (C) from 2011 |
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* Boaz Harrosh <ooo@electrozaur.com> |
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* |
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* This file is part of the objects raid engine (ore). |
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* |
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* It is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as published |
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* by the Free Software Foundation. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with "ore". If not, write to the Free Software Foundation, Inc: |
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* "Free Software Foundation <info@fsf.org>" |
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*/ |
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#include <scsi/osd_ore.h> |
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#define ORE_ERR(fmt, a...) printk(KERN_ERR "ore: " fmt, ##a) |
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#ifdef CONFIG_EXOFS_DEBUG |
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#define ORE_DBGMSG(fmt, a...) \ |
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printk(KERN_NOTICE "ore @%s:%d: " fmt, __func__, __LINE__, ##a) |
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#else |
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#define ORE_DBGMSG(fmt, a...) \ |
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do { if (0) printk(fmt, ##a); } while (0) |
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#endif |
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/* u64 has problems with printk this will cast it to unsigned long long */ |
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#define _LLU(x) (unsigned long long)(x) |
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#define ORE_DBGMSG2(M...) do {} while (0) |
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/* #define ORE_DBGMSG2 ORE_DBGMSG */ |
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/* ios_raid.c stuff needed by ios.c */ |
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int _ore_post_alloc_raid_stuff(struct ore_io_state *ios); |
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void _ore_free_raid_stuff(struct ore_io_state *ios); |
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void _ore_add_sg_seg(struct ore_per_dev_state *per_dev, unsigned cur_len, |
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bool not_last); |
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int _ore_add_parity_unit(struct ore_io_state *ios, struct ore_striping_info *si, |
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struct ore_per_dev_state *per_dev, unsigned cur_len, |
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bool do_xor); |
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void _ore_add_stripe_page(struct __stripe_pages_2d *sp2d, |
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struct ore_striping_info *si, struct page *page); |
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static inline void _add_stripe_page(struct __stripe_pages_2d *sp2d, |
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struct ore_striping_info *si, struct page *page) |
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{ |
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if (!sp2d) /* Inline the fast path */ |
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return; /* Hay no raid stuff */ |
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_ore_add_stripe_page(sp2d, si, page); |
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} |
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/* ios.c stuff needed by ios_raid.c */ |
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int _ore_get_io_state(struct ore_layout *layout, |
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struct ore_components *oc, unsigned numdevs, |
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unsigned sgs_per_dev, unsigned num_par_pages, |
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struct ore_io_state **pios); |
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int _ore_add_stripe_unit(struct ore_io_state *ios, unsigned *cur_pg, |
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unsigned pgbase, struct page **pages, |
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struct ore_per_dev_state *per_dev, int cur_len); |
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int _ore_read_mirror(struct ore_io_state *ios, unsigned cur_comp); |
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int ore_io_execute(struct ore_io_state *ios);
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