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2 | pj | 1 | |
2 | #include <fs/types.h> |
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3 | #include <fs/errno.h> |
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4 | #include <fs/maccess.h> |
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5 | #include <fs/mount.h> |
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6 | #include <fs/bdev.h> |
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7 | |||
8 | #include "fsconst.h" |
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9 | #include "debug.h" |
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10 | #include "fs.h" |
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11 | |||
12 | int k_fdevice(char *device_name) |
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13 | { |
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14 | declare_buffer(char,dname,MAXFILENAMELEN); |
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15 | int len,ret; |
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16 | |||
17 | call_to_fs(); |
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18 | |||
19 | len=__verify_read_nolen((char*)device_name); |
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20 | if ((!len)||(len>MAXFILENAMELEN)) return_from_fs(-EVERIFY); |
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21 | __copy_from_user(dname,device_name,len+1); |
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22 | |||
23 | ret=(int)bdev_find_byname(dname); |
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24 | if (ret<0) return_from_fs(-EINVAL); |
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25 | |||
26 | return_from_fs(ret); |
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27 | } |
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28 |