static fni_handle try_open (fni_access access /* fnilib access handle */
, char const * const fn /* file name */
, char const * const md /* mode of opening */
, fni_list const fl /* list of directories */
, char const * const rf /* relative file name */
, void (* const free_fn)(void *)
/* function to free memory */
)
{
fni_handle opened;
fni_style old_style;
/* try host style first */
old_style = fni_set_style (access, host_style);
opened = simple_open (access, fn, md, fl, rf, free_fn);
/* Now try the unix style if we must */
if (opened == NULL)
{
if (fni_set_style (access, unix_style) != unix_style)
opened = simple_open (access, fn, md, fl, rf, free_fn);
}
/* Reset style of file names */
fni_set_style (access, old_style);
return (opened);
}
static int fs_open(struct inode *inode, struct file *filp)
{
int ret;
struct fs_base *base;
ret = simple_open(inode, filp);
if (ret)
return ret;
if (!filp->private_data)
return -ENOENT;
base = filp->private_data;
kref_get(&base->refcount);
return ret;
}
static int fs_match_open(struct inode *inode, struct file *filp)
{
int ret;
struct fs_base *base;
struct fs_debugfs_match_header_ctx *ctx;
ret = simple_open(inode, filp);
if (ret)
return ret;
if (!filp->private_data)
return -ENOENT;
ctx = filp->private_data;
base = ctx->base;
kref_get(&base->refcount);
return ret;
}
