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dentry leak in simple_fill_super() failure exit

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d_genocide() does _not_ evict dentries; it just removes extra ref
pinning each of those.  Normally it's followed by shrinking the
tree (it's done just before generic_shutdown_super() by kill_litter_super()),
but in case of simple_fill_super() nothing of that kind will follow.
Just do shrink_dcache_parent() manually.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-04-02 19:22:25 -04:00
parent c65390f4dd
commit 640946f203
1 changed files with 1 additions and 0 deletions
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fs/libfs.c
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@ -529,6 +529,7 @@ int simple_fill_super(struct super_block *s, unsigned long magic,
return 0;
out:
d_genocide(root);
shrink_dcache_parent(root);
dput(root);
return -ENOMEM;
}