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fs/jffs2/jffs2_fs_i.h
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/* * JFFS2 -- Journalling Flash File System, Version 2. * * Copyright © 2001-2007 Red Hat, Inc. |
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* Copyright © 2004-2010 David Woodhouse <dwmw2@infradead.org> |
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* * Created by David Woodhouse <dwmw2@infradead.org> * * For licensing information, see the file 'LICENCE' in this directory. * */ |
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#ifndef _JFFS2_FS_I #define _JFFS2_FS_I |
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#include <linux/rbtree.h> |
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#include <linux/posix_acl.h> |
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#include <linux/mutex.h> |
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struct jffs2_inode_info { |
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/* We need an internal mutex similar to inode->i_mutex. |
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Unfortunately, we can't used the existing one, because either the GC would deadlock, or we'd have to release it before letting GC proceed. Or we'd have to put ugliness |
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into the GC code so it didn't attempt to obtain the i_mutex |
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for the inode(s) which are already locked */ |
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struct mutex sem; |
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/* The highest (datanode) version number used for this ino */ uint32_t highest_version; /* List of data fragments which make up the file */ struct rb_root fragtree; /* There may be one datanode which isn't referenced by any of the above fragments, if it contains a metadata update but no actual data - or if this is a directory inode */ |
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/* This also holds the _only_ dnode for symlinks/device nodes, |
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etc. */ struct jffs2_full_dnode *metadata; /* Directory entries */ struct jffs2_full_dirent *dents; |
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/* The target path if this is the inode of a symlink */ unsigned char *target; |
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/* Some stuff we just have to keep in-core at all times, for each inode. */ struct jffs2_inode_cache *inocache; uint16_t flags; uint8_t usercompr; |
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struct inode vfs_inode; |
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}; #endif /* _JFFS2_FS_I */ |