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cifs: improve handlecaching

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Only track the dentry for the root handle

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Ronnie Sahlberg 2022-08-31 12:49:43 +10:00 committed by Steve French
parent aea6794e66
commit 47fc2491e1
1 changed files with 5 additions and 4 deletions
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9
fs/cifs/cached_dir.c
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@ -47,11 +47,11 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
if (cifs_sb->root == NULL)
return -ENOENT;
if (strlen(path))
if (!path[0])
dentry = cifs_sb->root;
else
return -ENOENT;
dentry = cifs_sb->root;
cfid = &tcon->cfids->cfid;
mutex_lock(&cfid->fid_mutex);
if (cfid->is_valid) {
@ -177,7 +177,8 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
cfid->tcon = tcon;
cfid->is_valid = true;
cfid->dentry = dentry;
dget(dentry);
if (dentry)
dget(dentry);
kref_init(&cfid->refcount);
/* BB TBD check to see if oplock level check can be removed below */