luck/tmp_suning_uos_patched
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hppfs_lookup(): don't open-code lookup_one_len()

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... and it's getting it wrong, too - missing ->d_revalidate() calls when
it's dealing with filesystem (procfs) that has non-trivial ->d_revalidate()...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-07-17 22:27:22 -04:00
parent 3cc0658e35
commit 0916a5e45f
1 changed files with 3 additions and 16 deletions
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19
fs/hppfs/hppfs.c
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@ -139,7 +139,8 @@ static int file_removed(struct dentry *dentry, const char *file)
static struct dentry *hppfs_lookup(struct inode *ino, struct dentry *dentry,
struct nameidata *nd)
{
struct dentry *proc_dentry, *new, *parent;
struct dentry *proc_dentry, *parent;
struct qstr *name = &dentry->d_name;
struct inode *inode;
int err, deleted;
@ -149,23 +150,9 @@ static struct dentry *hppfs_lookup(struct inode *ino, struct dentry *dentry,
else if (deleted)
return ERR_PTR(-ENOENT);
err = -ENOMEM;
parent = HPPFS_I(ino)->proc_dentry;
mutex_lock(&parent->d_inode->i_mutex);
proc_dentry = d_lookup(parent, &dentry->d_name);
if (proc_dentry == NULL) {
proc_dentry = d_alloc(parent, &dentry->d_name);
if (proc_dentry == NULL) {
mutex_unlock(&parent->d_inode->i_mutex);
goto out;
}
new = (*parent->d_inode->i_op->lookup)(parent->d_inode,
proc_dentry, NULL);
if (new) {
dput(proc_dentry);
proc_dentry = new;
}
}
proc_dentry = lookup_one_len(name->name, parent, name->len);
mutex_unlock(&parent->d_inode->i_mutex);
if (IS_ERR(proc_dentry))