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do not forbid other processes to use the pwqr fd.
[~madcoder/pwqr.git]
/
kernel
/
pwqr.c
diff --git
a/kernel/pwqr.c
b/kernel/pwqr.c
index
8592a00
..
a6ff8e5
100644
(file)
--- a/
kernel/pwqr.c
+++ b/
kernel/pwqr.c
@@
-60,7
+60,6
@@
struct pwqr_sb {
struct rcu_head rcu;
struct timer_list timer;
wait_queue_head_t wqh;
struct rcu_head rcu;
struct timer_list timer;
wait_queue_head_t wqh;
- pid_t tgid;
unsigned concurrency;
unsigned registered;
unsigned concurrency;
unsigned registered;
@@
-149,8
+148,7
@@
static struct pwqr_sb *pwqr_sb_create(void)
kref_init(&sb->kref);
init_waitqueue_head(&sb->wqh);
kref_init(&sb->kref);
init_waitqueue_head(&sb->wqh);
- sb->tgid = current->tgid;
- sb->concurrency = num_online_cpus();
+ sb->concurrency = num_online_cpus();
init_timer(&sb->timer);
sb->timer.function = pwqr_sb_timer_cb;
sb->timer.data = (unsigned long)sb;
init_timer(&sb->timer);
sb->timer.function = pwqr_sb_timer_cb;
sb->timer.data = (unsigned long)sb;
@@
-374,7
+372,7
@@
static int pwqr_release(struct inode *inode, struct file *filp)
static long
do_pwqr_wait(struct pwqr_sb *sb, struct pwqr_task *pwqt,
static long
do_pwqr_wait(struct pwqr_sb *sb, struct pwqr_task *pwqt,
- int is_wait, struct pwqr_ioc_wait __user *arg)
+
int is_wait, struct pwqr_ioc_wait __user *arg)
{
unsigned long flags;
struct pwqr_ioc_wait wait;
{
unsigned long flags;
struct pwqr_ioc_wait wait;
@@
-563,9
+561,6
@@
static long pwqr_ioctl(struct file *filp, unsigned command, unsigned long arg)
struct pwqr_task *pwqt;
int rc = 0;
struct pwqr_task *pwqt;
int rc = 0;
- if (sb->tgid != current->tgid)
- return -EBADFD;
-
switch (command) {
case PWQR_GET_CONC:
return sb->concurrency;
switch (command) {
case PWQR_GET_CONC:
return sb->concurrency;