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author | Al Viro <viro@zeniv.linux.org.uk> | 2014-12-24 22:47:00 -0500 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-01-25 23:16:26 -0500 |
commit | d6cb125b9983e1ea9444f794b2d3ed5e3ad737b7 (patch) | |
tree | 9758e077dd788590273921af0719a34b6fde4ce4 /fs/dcache.c | |
parent | 5e993e2534e29b62790f9a2908b551b7fb3a63f0 (diff) | |
download | linux-d6cb125b9983e1ea9444f794b2d3ed5e3ad737b7.tar.bz2 |
kill d_validate()
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/dcache.c')
-rw-r--r-- | fs/dcache.c | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index e368d4f412f9..40432e59d72e 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -2187,37 +2187,6 @@ struct dentry *d_hash_and_lookup(struct dentry *dir, struct qstr *name) } EXPORT_SYMBOL(d_hash_and_lookup); -/** - * d_validate - verify dentry provided from insecure source (deprecated) - * @dentry: The dentry alleged to be valid child of @dparent - * @dparent: The parent dentry (known to be valid) - * - * An insecure source has sent us a dentry, here we verify it and dget() it. - * This is used by ncpfs in its readdir implementation. - * Zero is returned in the dentry is invalid. - * - * This function is slow for big directories, and deprecated, do not use it. - */ -int d_validate(struct dentry *dentry, struct dentry *dparent) -{ - struct dentry *child; - - spin_lock(&dparent->d_lock); - list_for_each_entry(child, &dparent->d_subdirs, d_child) { - if (dentry == child) { - spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED); - __dget_dlock(dentry); - spin_unlock(&dentry->d_lock); - spin_unlock(&dparent->d_lock); - return 1; - } - } - spin_unlock(&dparent->d_lock); - - return 0; -} -EXPORT_SYMBOL(d_validate); - /* * When a file is deleted, we have two options: * - turn this dentry into a negative dentry |