Commit ad461834 authored by Oleg Nesterov's avatar Oleg Nesterov Committed by Al Viro

fs: factor out common code in fget_light() and fget_raw_light()

Apart from FMODE_PATH check fget_light() and fget_raw_light() are
identical, shift the code into the new helper, __fget_light(fd, mask).
Saves 208 bytes.
Signed-off-by: default avatarOleg Nesterov <oleg@redhat.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 1deb46e2
......@@ -683,21 +683,21 @@ EXPORT_SYMBOL(fget_raw);
* The fput_needed flag returned by fget_light should be passed to the
* corresponding fput_light.
*/
struct file *fget_light(unsigned int fd, int *fput_needed)
struct file *__fget_light(unsigned int fd, fmode_t mask, int *fput_needed)
{
struct file *file;
struct files_struct *files = current->files;
struct file *file;
*fput_needed = 0;
if (atomic_read(&files->count) == 1) {
file = __fcheck_files(files, fd);
if (file && (file->f_mode & FMODE_PATH))
if (file && (file->f_mode & mask))
file = NULL;
} else {
rcu_read_lock();
file = fcheck_files(files, fd);
if (file) {
if (!(file->f_mode & FMODE_PATH) &&
if (!(file->f_mode & mask) &&
atomic_long_inc_not_zero(&file->f_count))
*fput_needed = 1;
else
......@@ -709,30 +709,15 @@ struct file *fget_light(unsigned int fd, int *fput_needed)
return file;
}
struct file *fget_light(unsigned int fd, int *fput_needed)
{
return __fget_light(fd, FMODE_PATH, fput_needed);
}
EXPORT_SYMBOL(fget_light);
struct file *fget_raw_light(unsigned int fd, int *fput_needed)
{
struct file *file;
struct files_struct *files = current->files;
*fput_needed = 0;
if (atomic_read(&files->count) == 1) {
file = __fcheck_files(files, fd);
} else {
rcu_read_lock();
file = fcheck_files(files, fd);
if (file) {
if (atomic_long_inc_not_zero(&file->f_count))
*fput_needed = 1;
else
/* Didn't get the reference, someone's freed */
file = NULL;
}
rcu_read_unlock();
}
return file;
return __fget_light(fd, 0, fput_needed);
}
void set_close_on_exec(unsigned int fd, int flag)
......
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