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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>
This commit is contained in:
Sage Weil 2012-01-10 09:04:37 -08:00
parent d46cfba536
commit 46f72b3492
2 changed files with 10 additions and 2 deletions
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11
fs/dcache.c
View File

@ -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

1
include/linux/dcache.h
View File

@ -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 *);