1 | /* blktapctrl.h |
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2 | * |
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3 | * controller image utils. |
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4 | * |
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5 | * (c) 2004-6 Andrew Warfield and Julian Chesterfield |
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6 | * |
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7 | * This program is free software; you can redistribute it and/or |
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8 | * modify it under the terms of the GNU General Public License version 2 |
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9 | * as published by the Free Software Foundation; or, when distributed |
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10 | * separately from the Linux kernel or incorporated into other |
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11 | * software packages, subject to the following license: |
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12 | * |
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13 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
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14 | * of this source file (the "Software"), to deal in the Software without |
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15 | * restriction, including without limitation the rights to use, copy, modify, |
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16 | * merge, publish, distribute, sublicense, and/or sell copies of the Software, |
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17 | * and to permit persons to whom the Software is furnished to do so, subject to |
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18 | * the following conditions: |
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19 | * |
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20 | * The above copyright notice and this permission notice shall be included in |
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21 | * all copies or substantial portions of the Software. |
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22 | * |
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23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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24 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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25 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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26 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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27 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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28 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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29 | * IN THE SOFTWARE. |
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30 | */ |
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31 | |
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32 | |
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33 | static inline unsigned long long tapdisk_get_size(blkif_t *blkif) |
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34 | { |
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35 | image_t *img = (image_t *)blkif->prv; |
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36 | return img->size; |
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37 | } |
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38 | |
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39 | static inline unsigned long tapdisk_get_secsize(blkif_t *blkif) |
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40 | { |
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41 | image_t *img = (image_t *)blkif->prv; |
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42 | return img->secsize; |
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43 | } |
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44 | |
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45 | static inline unsigned int tapdisk_get_info(blkif_t *blkif) |
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46 | { |
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47 | image_t *img = (image_t *)blkif->prv; |
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48 | return img->info; |
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49 | } |
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50 | |
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51 | struct blkif_ops tapdisk_ops = { |
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52 | .get_size = tapdisk_get_size, |
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53 | .get_secsize = tapdisk_get_secsize, |
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54 | .get_info = tapdisk_get_info, |
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55 | }; |
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