projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| a1fec1db BH |
1 | /* |
| 2 | * Copyright (C) from 2011 | |
| aa281ac6 | 3 | * Boaz Harrosh <ooo@electrozaur.com> |
| a1fec1db BH |
4 | * |
| 5 | * This file is part of the objects raid engine (ore). | |
| 6 | * | |
| 7 | * It is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License version 2 as published | |
| 9 | * by the Free Software Foundation. | |
| 10 | * | |
| 11 | * You should have received a copy of the GNU General Public License | |
| 12 | * along with "ore". If not, write to the Free Software Foundation, Inc: | |
| 13 | * "Free Software Foundation <info@fsf.org>" | |
| 14 | */ | |
| 15 | ||
| 16 | #include <scsi/osd_ore.h> | |
| 17 | ||
| 18 | #define ORE_ERR(fmt, a...) printk(KERN_ERR "ore: " fmt, ##a) | |
| 19 | ||
| 20 | #ifdef CONFIG_EXOFS_DEBUG | |
| 21 | #define ORE_DBGMSG(fmt, a...) \ | |
| 22 | printk(KERN_NOTICE "ore @%s:%d: " fmt, __func__, __LINE__, ##a) | |
| 23 | #else | |
| 24 | #define ORE_DBGMSG(fmt, a...) \ | |
| 25 | do { if (0) printk(fmt, ##a); } while (0) | |
| 26 | #endif | |
| 27 | ||
| 28 | /* u64 has problems with printk this will cast it to unsigned long long */ | |
| 29 | #define _LLU(x) (unsigned long long)(x) | |
| 30 | ||
| 31 | #define ORE_DBGMSG2(M...) do {} while (0) | |
| 32 | /* #define ORE_DBGMSG2 ORE_DBGMSG */ | |
| 33 | ||
| a1fec1db BH |
34 | /* ios_raid.c stuff needed by ios.c */ |
| 35 | int _ore_post_alloc_raid_stuff(struct ore_io_state *ios); | |
| 36 | void _ore_free_raid_stuff(struct ore_io_state *ios); | |
| 37 | ||
| 38 | void _ore_add_sg_seg(struct ore_per_dev_state *per_dev, unsigned cur_len, | |
| 39 | bool not_last); | |
| 40 | int _ore_add_parity_unit(struct ore_io_state *ios, struct ore_striping_info *si, | |
| ce5d36aa BH |
41 | struct ore_per_dev_state *per_dev, unsigned cur_len, |
| 42 | bool do_xor); | |
| 769ba8d9 BH |
43 | void _ore_add_stripe_page(struct __stripe_pages_2d *sp2d, |
| 44 | struct ore_striping_info *si, struct page *page); | |
| 45 | static inline void _add_stripe_page(struct __stripe_pages_2d *sp2d, | |
| 46 | struct ore_striping_info *si, struct page *page) | |
| 47 | { | |
| 48 | if (!sp2d) /* Inline the fast path */ | |
| 49 | return; /* Hay no raid stuff */ | |
| 50 | _ore_add_stripe_page(sp2d, si, page); | |
| 51 | } | |
| a1fec1db BH |
52 | |
| 53 | /* ios.c stuff needed by ios_raid.c */ | |
| 769ba8d9 BH |
54 | int _ore_get_io_state(struct ore_layout *layout, |
| 55 | struct ore_components *oc, unsigned numdevs, | |
| 56 | unsigned sgs_per_dev, unsigned num_par_pages, | |
| 57 | struct ore_io_state **pios); | |
| a1fec1db BH |
58 | int _ore_add_stripe_unit(struct ore_io_state *ios, unsigned *cur_pg, |
| 59 | unsigned pgbase, struct page **pages, | |
| 60 | struct ore_per_dev_state *per_dev, int cur_len); | |
| 769ba8d9 BH |
61 | int _ore_read_mirror(struct ore_io_state *ios, unsigned cur_comp); |
| 62 | int ore_io_execute(struct ore_io_state *ios); |