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NFS: Don't use readdirplus data if the page cache is invalid 

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2007-09-30 18:01:13 -04:00
parent 47aabaa7e4
commit 57fa76f2da
1 changed files with 10 additions and 1 deletions
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11
fs/nfs/dir.c
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@ -1110,6 +1110,7 @@ static struct dentry *nfs_readdir_lookup(nfs_readdir_descriptor_t *desc)
.len = entry->len,
};
struct inode *inode;
unsigned long verf = nfs_save_change_attribute(dir);
switch (name.len) {
case 2:
@ -1120,6 +1121,14 @@ static struct dentry *nfs_readdir_lookup(nfs_readdir_descriptor_t *desc)
if (name.name[0] == '.')
return dget(parent);
}
spin_lock(&dir->i_lock);
if (NFS_I(dir)->cache_validity & NFS_INO_INVALID_DATA) {
spin_unlock(&dir->i_lock);
return NULL;
}
spin_unlock(&dir->i_lock);
name.hash = full_name_hash(name.name, name.len);
dentry = d_lookup(parent, &name);
if (dentry != NULL) {
@ -1161,7 +1170,7 @@ static struct dentry *nfs_readdir_lookup(nfs_readdir_descriptor_t *desc)
}
out_renew:
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
nfs_set_verifier(dentry, verf);
return dentry;
}