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vfs: add d_real_inode() helper

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Needed by the following fix.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: <stable@vger.kernel.org>
This commit is contained in:
Miklos Szeredi 2016-05-20 22:13:45 +02:00
parent 2dcd0af568
commit a118084432
1 changed files with 12 additions and 0 deletions
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12
include/linux/dcache.h
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@ -576,5 +576,17 @@ static inline struct inode *vfs_select_inode(struct dentry *dentry,
return inode;
}
/**
* d_real_inode - Return the real inode
* @dentry: The dentry to query
*
* If dentry is on an union/overlay, then return the underlying, real inode.
* Otherwise return d_inode().
*/
static inline struct inode *d_real_inode(struct dentry *dentry)
{
return d_backing_inode(d_real(dentry));
}
#endif /* __LINUX_DCACHE_H */