From 46f72b349290d2bd7aecea38f02609d814332df6 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Tue, 10 Jan 2012 09:04:37 -0800
Subject: [PATCH] vfs: export symbol d_find_any_alias()
Ceph needs this.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sage Weil <sage@newdream.net>
---
fs/dcache.c | 11 +++++++++--
include/linux/dcache.h | 1 +
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/fs/dcache.c b/fs/dcache.c
index 89509b5a090e2..ba960051dfb73 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1471,7 +1471,14 @@ static struct dentry * __d_find_any_alias(struct inode *inode)
return alias;
}
-static struct dentry * d_find_any_alias(struct inode *inode)
+/**
+ * d_find_any_alias - find any alias for a given inode
+ * @inode: inode to find an alias for
+ *
+ * If any aliases exist for the given inode, take and return a
+ * reference for one of them. If no aliases exist, return %NULL.
+ */
+struct dentry *d_find_any_alias(struct inode *inode)
{
struct dentry *de;
@@ -1480,7 +1487,7 @@ static struct dentry * d_find_any_alias(struct inode *inode)
spin_unlock(&inode->i_lock);
return de;
}
-
+EXPORT_SYMBOL(d_find_any_alias);
/**
* d_obtain_alias - find or allocate a dentry for a given inode
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index ed9f74f6c519a..3871ba743b4cb 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -241,6 +241,7 @@ extern struct dentry * d_alloc(struct dentry *, const struct qstr *);
extern struct dentry * d_alloc_pseudo(struct super_block *, const struct qstr *);
extern struct dentry * d_splice_alias(struct inode *, struct dentry *);
extern struct dentry * d_add_ci(struct dentry *, struct inode *, struct qstr *);
+extern struct dentry *d_find_any_alias(struct inode *inode);
extern struct dentry * d_obtain_alias(struct inode *);
extern void shrink_dcache_sb(struct super_block *);
extern void shrink_dcache_parent(struct dentry *);
--
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