1 | /* |
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2 | * JFFS2 -- Journalling Flash File System, Version 2. |
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3 | * |
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4 | * Copyright © 2001-2007 Red Hat, Inc. |
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5 | * Copyright © 2004-2010 David Woodhouse <dwmw2@infradead.org> |
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6 | * |
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7 | * Created by David Woodhouse <dwmw2@infradead.org> |
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8 | * |
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9 | * For licensing information, see the file 'LICENCE' in this directory. |
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10 | * |
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11 | */ |
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12 | |
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13 | #ifndef _JFFS2_FS_I |
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14 | #define _JFFS2_FS_I |
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15 | |
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16 | #include <linux/rbtree.h> |
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17 | #include <linux/posix_acl.h> |
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18 | #include <linux/mutex.h> |
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19 | |
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20 | struct jffs2_inode_info { |
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21 | /* We need an internal mutex similar to inode->i_mutex. |
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22 | Unfortunately, we can't used the existing one, because |
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23 | either the GC would deadlock, or we'd have to release it |
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24 | before letting GC proceed. Or we'd have to put ugliness |
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25 | into the GC code so it didn't attempt to obtain the i_mutex |
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26 | for the inode(s) which are already locked */ |
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27 | struct mutex sem; |
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28 | |
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29 | /* The highest (datanode) version number used for this ino */ |
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30 | uint32_t highest_version; |
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31 | |
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32 | /* List of data fragments which make up the file */ |
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33 | struct rb_root fragtree; |
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34 | |
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35 | /* There may be one datanode which isn't referenced by any of the |
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36 | above fragments, if it contains a metadata update but no actual |
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37 | data - or if this is a directory inode */ |
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38 | /* This also holds the _only_ dnode for symlinks/device nodes, |
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39 | etc. */ |
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40 | struct jffs2_full_dnode *metadata; |
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41 | |
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42 | /* Directory entries */ |
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43 | struct jffs2_full_dirent *dents; |
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44 | |
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45 | /* The target path if this is the inode of a symlink */ |
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46 | unsigned char *target; |
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47 | |
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48 | /* Some stuff we just have to keep in-core at all times, for each inode. */ |
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49 | struct jffs2_inode_cache *inocache; |
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50 | |
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51 | uint16_t flags; |
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52 | uint8_t usercompr; |
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53 | #if !defined (__ECOS) |
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54 | struct inode vfs_inode; |
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55 | #endif |
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56 | }; |
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57 | |
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58 | #endif /* _JFFS2_FS_I */ |
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