cifs: refactor new_inode() calls and inode initialization
Move new inode creation into a separate routine and refactor the
callers to take advantage of it.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 9f51f9b..02a2022 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -56,35 +56,34 @@
}
#endif /* DEBUG2 */
-/* Returns one if new inode created (which therefore needs to be hashed) */
+/* Returns 1 if new inode created, 2 if both dentry and inode were */
/* Might check in the future if inode number changed so we can rehash inode */
-static int construct_dentry(struct qstr *qstring, struct file *file,
- struct inode **ptmp_inode, struct dentry **pnew_dentry)
+static int
+construct_dentry(struct qstr *qstring, struct file *file,
+ struct inode **ptmp_inode, struct dentry **pnew_dentry,
+ unsigned long *inum)
{
- struct dentry *tmp_dentry;
- struct cifs_sb_info *cifs_sb;
- struct cifsTconInfo *pTcon;
+ struct dentry *tmp_dentry = NULL;
+ struct super_block *sb = file->f_path.dentry->d_sb;
int rc = 0;
cFYI(1, ("For %s", qstring->name));
- cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
- pTcon = cifs_sb->tcon;
qstring->hash = full_name_hash(qstring->name, qstring->len);
tmp_dentry = d_lookup(file->f_path.dentry, qstring);
if (tmp_dentry) {
+ /* BB: overwrite old name? i.e. tmp_dentry->d_name and
+ * tmp_dentry->d_name.len??
+ */
cFYI(0, ("existing dentry with inode 0x%p",
tmp_dentry->d_inode));
*ptmp_inode = tmp_dentry->d_inode;
-/* BB overwrite old name? i.e. tmp_dentry->d_name and tmp_dentry->d_name.len??*/
if (*ptmp_inode == NULL) {
- *ptmp_inode = new_inode(file->f_path.dentry->d_sb);
+ *ptmp_inode = cifs_new_inode(sb, inum);
if (*ptmp_inode == NULL)
return rc;
rc = 1;
}
- if (file->f_path.dentry->d_sb->s_flags & MS_NOATIME)
- (*ptmp_inode)->i_flags |= S_NOATIME | S_NOCMTIME;
} else {
tmp_dentry = d_alloc(file->f_path.dentry, qstring);
if (tmp_dentry == NULL) {
@@ -93,15 +92,14 @@
return rc;
}
- *ptmp_inode = new_inode(file->f_path.dentry->d_sb);
- if (pTcon->nocase)
+ if (CIFS_SB(sb)->tcon->nocase)
tmp_dentry->d_op = &cifs_ci_dentry_ops;
else
tmp_dentry->d_op = &cifs_dentry_ops;
+
+ *ptmp_inode = cifs_new_inode(sb, inum);
if (*ptmp_inode == NULL)
return rc;
- if (file->f_path.dentry->d_sb->s_flags & MS_NOATIME)
- (*ptmp_inode)->i_flags |= S_NOATIME | S_NOCMTIME;
rc = 2;
}
@@ -842,9 +840,7 @@
len = strnlen(filename, PATH_MAX);
}
- /* BB fixme - hash low and high 32 bits if not 64 bit arch BB */
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
- *pinum = pFindData->UniqueId;
+ *pinum = pFindData->UniqueId;
} else if (level == SMB_FIND_FILE_DIRECTORY_INFO) {
FILE_DIRECTORY_INFO *pFindData =
(FILE_DIRECTORY_INFO *)current_entry;
@@ -940,20 +936,18 @@
if (rc)
return rc;
- rc = construct_dentry(&qstring, file, &tmp_inode, &tmp_dentry);
+ /* only these two infolevels return valid inode numbers */
+ if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX ||
+ pCifsF->srch_inf.info_level == SMB_FIND_FILE_ID_FULL_DIR_INFO)
+ rc = construct_dentry(&qstring, file, &tmp_inode, &tmp_dentry,
+ &inum);
+ else
+ rc = construct_dentry(&qstring, file, &tmp_inode, &tmp_dentry,
+ NULL);
+
if ((tmp_inode == NULL) || (tmp_dentry == NULL))
return -ENOMEM;
- if (rc) {
- /* inode created, we need to hash it with right inode number */
- if (inum != 0) {
- /* BB fixme - hash the 2 32 quantities bits together if
- * necessary BB */
- tmp_inode->i_ino = inum;
- }
- insert_inode_hash(tmp_inode);
- }
-
/* we pass in rc below, indicating whether it is a new inode,
so we can figure out whether to invalidate the inode cached
data if the file has changed */