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[JFFS2] Track parent inode for directories (for NFS export)

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To support NFS export, we need to know the parent inode of directories.
Rather than growing the jffs2_inode_cache structure, share space with
the nlink field -- which was always set to 1 for directories anyway.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
David Woodhouse
2008-05-01 18:47:17 +01:00
parent 1b690b4878
commit 27c72b040c
12 changed files with 70 additions and 42 deletions
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5
fs/jffs2/nodelist.h
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@@ -177,7 +177,10 @@ struct jffs2_inode_cache {
#ifdef CONFIG_JFFS2_FS_XATTR
struct jffs2_xattr_ref *xref;
#endif
int nlink;
uint32_t pino_nlink; /* Directories store parent inode
here; other inodes store nlink.
Zero always means that it's
completely unlinked. */
};
/* Inode states for 'state' above. We need the 'GC' state to prevent