Skip to content

Commit

Permalink
tty: Remove __lockfunc annotation from tty lock functions
Browse files Browse the repository at this point in the history
The tty lock/unlock code does not belong in the special lockfunc section
which is treated specially by stack backtraces.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  • Loading branch information
Peter Hurley authored and Greg Kroah-Hartman committed Jan 27, 2016
1 parent c1e33af commit c2bb524
Show file tree
Hide file tree
Showing 3 changed files with 15 additions and 17 deletions.
16 changes: 7 additions & 9 deletions drivers/tty/tty_ldisc.c
Original file line number Diff line number Diff line change
Expand Up @@ -304,13 +304,13 @@ void tty_ldisc_deref(struct tty_ldisc *ld)
EXPORT_SYMBOL_GPL(tty_ldisc_deref);


static inline int __lockfunc
static inline int
__tty_ldisc_lock(struct tty_struct *tty, unsigned long timeout)
{
return ldsem_down_write(&tty->ldisc_sem, timeout);
}

static inline int __lockfunc
static inline int
__tty_ldisc_lock_nested(struct tty_struct *tty, unsigned long timeout)
{
return ldsem_down_write_nested(&tty->ldisc_sem,
Expand All @@ -322,8 +322,7 @@ static inline void __tty_ldisc_unlock(struct tty_struct *tty)
ldsem_up_write(&tty->ldisc_sem);
}

static int __lockfunc
tty_ldisc_lock(struct tty_struct *tty, unsigned long timeout)
static int tty_ldisc_lock(struct tty_struct *tty, unsigned long timeout)
{
int ret;

Expand All @@ -340,7 +339,7 @@ static void tty_ldisc_unlock(struct tty_struct *tty)
__tty_ldisc_unlock(tty);
}

static int __lockfunc
static int
tty_ldisc_lock_pair_timeout(struct tty_struct *tty, struct tty_struct *tty2,
unsigned long timeout)
{
Expand Down Expand Up @@ -376,14 +375,13 @@ tty_ldisc_lock_pair_timeout(struct tty_struct *tty, struct tty_struct *tty2,
return 0;
}

static void __lockfunc
tty_ldisc_lock_pair(struct tty_struct *tty, struct tty_struct *tty2)
static void tty_ldisc_lock_pair(struct tty_struct *tty, struct tty_struct *tty2)
{
tty_ldisc_lock_pair_timeout(tty, tty2, MAX_SCHEDULE_TIMEOUT);
}

static void __lockfunc tty_ldisc_unlock_pair(struct tty_struct *tty,
struct tty_struct *tty2)
static void tty_ldisc_unlock_pair(struct tty_struct *tty,
struct tty_struct *tty2)
{
__tty_ldisc_unlock(tty);
if (tty2)
Expand Down
8 changes: 4 additions & 4 deletions drivers/tty/tty_mutex.c
Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@
* Getting the big tty mutex.
*/

void __lockfunc tty_lock(struct tty_struct *tty)
void tty_lock(struct tty_struct *tty)
{
if (WARN(tty->magic != TTY_MAGIC, "L Bad %p\n", tty))
return;
Expand All @@ -27,7 +27,7 @@ int tty_lock_interruptible(struct tty_struct *tty)
return mutex_lock_interruptible(&tty->legacy_mutex);
}

void __lockfunc tty_unlock(struct tty_struct *tty)
void tty_unlock(struct tty_struct *tty)
{
if (WARN(tty->magic != TTY_MAGIC, "U Bad %p\n", tty))
return;
Expand All @@ -36,13 +36,13 @@ void __lockfunc tty_unlock(struct tty_struct *tty)
}
EXPORT_SYMBOL(tty_unlock);

void __lockfunc tty_lock_slave(struct tty_struct *tty)
void tty_lock_slave(struct tty_struct *tty)
{
if (tty && tty != tty->link)
tty_lock(tty);
}

void __lockfunc tty_unlock_slave(struct tty_struct *tty)
void tty_unlock_slave(struct tty_struct *tty)
{
if (tty && tty != tty->link)
tty_unlock(tty);
Expand Down
8 changes: 4 additions & 4 deletions include/linux/tty.h
Original file line number Diff line number Diff line change
Expand Up @@ -643,11 +643,11 @@ extern long vt_compat_ioctl(struct tty_struct *tty,

/* tty_mutex.c */
/* functions for preparation of BKL removal */
extern void __lockfunc tty_lock(struct tty_struct *tty);
extern void tty_lock(struct tty_struct *tty);
extern int tty_lock_interruptible(struct tty_struct *tty);
extern void __lockfunc tty_unlock(struct tty_struct *tty);
extern void __lockfunc tty_lock_slave(struct tty_struct *tty);
extern void __lockfunc tty_unlock_slave(struct tty_struct *tty);
extern void tty_unlock(struct tty_struct *tty);
extern void tty_lock_slave(struct tty_struct *tty);
extern void tty_unlock_slave(struct tty_struct *tty);
extern void tty_set_lock_subclass(struct tty_struct *tty);

#ifdef CONFIG_PROC_FS
Expand Down

0 comments on commit c2bb524

Please sign in to comment.