4.104.114.84.95
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1 | /* |
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2 | * IMFS_mount |
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3 | * |
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4 | * This routine will look at a mount table entry that we are going to |
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5 | * add to the mount table. If the mount point rtems_filesystem |
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6 | * location_info_t struct refers to a node that is a directory, |
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7 | * the node will be marked as a mount point by setting its directory.mt_fs |
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8 | * pointer to point to the mount table entry that we are about to add |
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9 | * to the mount table chain. |
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10 | * |
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11 | * COPYRIGHT (c) 1989-1999. |
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12 | * On-Line Applications Research Corporation (OAR). |
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13 | * |
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14 | * The license and distribution terms for this file may be |
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15 | * found in the file LICENSE in this distribution or at |
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16 | * http://www.OARcorp.com/rtems/license.html. |
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17 | * |
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18 | * $Id$ |
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19 | */ |
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20 | |
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21 | #include <errno.h> |
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22 | |
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23 | #include "imfs.h" |
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24 | #include "libio_.h" |
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25 | |
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26 | int IMFS_mount( |
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27 | rtems_filesystem_mount_table_entry_t *mt_entry |
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28 | ) |
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29 | { |
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30 | IMFS_jnode_t *node; |
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31 | |
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32 | node = mt_entry->mt_point_node.node_access; |
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33 | |
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34 | /* |
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35 | * Is the node that we are mounting onto a directory node ? |
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36 | */ |
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37 | |
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38 | if ( node->type != IMFS_DIRECTORY ) |
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39 | set_errno_and_return_minus_one( ENOTDIR ); |
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40 | |
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41 | /* |
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42 | * Set mt_fs pointer to point to the mount table entry for |
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43 | * the mounted file system. |
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44 | */ |
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45 | |
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46 | node->info.directory.mt_fs = mt_entry; |
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47 | return 0; |
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48 | } |
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