locking/lockdep: Rename lockdep_assert_held_exclusive() -> lockdep_assert_held_write()
All callers of lockdep_assert_held_exclusive() use it to verify the
correct locking state of either a semaphore (ldisc_sem in tty,
mmap_sem for perf events, i_rwsem of inode for dax) or rwlock by
apparmor. Thus it makes sense to rename _exclusive to _write since
that's the semantics callers care. Additionally there is already
lockdep_assert_held_read(), which this new naming is more consistent with.
No functional changes.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190531100651.3969-1-nborisov@suse.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index f315425..cf91d80 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2179,7 +2179,7 @@
* For now, this can't happen because all callers hold mmap_sem
* for write. If this changes, we'll need a different solution.
*/
- lockdep_assert_held_exclusive(&mm->mmap_sem);
+ lockdep_assert_held_write(&mm->mmap_sem);
if (atomic_inc_return(&mm->context.perf_rdpmc_allowed) == 1)
on_each_cpu_mask(mm_cpumask(mm), refresh_pce, NULL, 1);
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 29f7b15..d020bb4 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -457,7 +457,7 @@
int rc;
int i;
- lockdep_assert_held_exclusive(&devices_rwsem);
+ lockdep_assert_held_write(&devices_rwsem);
ida_init(&inuse);
xa_for_each (&devices, index, device) {
char buf[IB_DEVICE_NAME_MAX];
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index e38f104..fde8d40 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -487,7 +487,7 @@
static void tty_ldisc_close(struct tty_struct *tty, struct tty_ldisc *ld)
{
- lockdep_assert_held_exclusive(&tty->ldisc_sem);
+ lockdep_assert_held_write(&tty->ldisc_sem);
WARN_ON(!test_bit(TTY_LDISC_OPEN, &tty->flags));
clear_bit(TTY_LDISC_OPEN, &tty->flags);
if (ld->ops->close)
@@ -509,7 +509,7 @@
struct tty_ldisc *disc = tty_ldisc_get(tty, ld);
int r;
- lockdep_assert_held_exclusive(&tty->ldisc_sem);
+ lockdep_assert_held_write(&tty->ldisc_sem);
if (IS_ERR(disc))
return PTR_ERR(disc);
tty->ldisc = disc;
@@ -633,7 +633,7 @@
*/
static void tty_ldisc_kill(struct tty_struct *tty)
{
- lockdep_assert_held_exclusive(&tty->ldisc_sem);
+ lockdep_assert_held_write(&tty->ldisc_sem);
if (!tty->ldisc)
return;
/*
@@ -681,7 +681,7 @@
struct tty_ldisc *ld;
int retval;
- lockdep_assert_held_exclusive(&tty->ldisc_sem);
+ lockdep_assert_held_write(&tty->ldisc_sem);
ld = tty_ldisc_get(tty, disc);
if (IS_ERR(ld)) {
BUG_ON(disc == N_TTY);
diff --git a/fs/dax.c b/fs/dax.c
index 2e48c7e..bf8686d 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1188,7 +1188,7 @@
unsigned flags = 0;
if (iov_iter_rw(iter) == WRITE) {
- lockdep_assert_held_exclusive(&inode->i_rwsem);
+ lockdep_assert_held_write(&inode->i_rwsem);
flags |= IOMAP_WRITE;
} else {
lockdep_assert_held(&inode->i_rwsem);
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 30a0f81..151d557 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -394,7 +394,7 @@
WARN_ON(debug_locks && !lockdep_is_held(l)); \
} while (0)
-#define lockdep_assert_held_exclusive(l) do { \
+#define lockdep_assert_held_write(l) do { \
WARN_ON(debug_locks && !lockdep_is_held_type(l, 0)); \
} while (0)
@@ -479,7 +479,7 @@
#define lockdep_is_held_type(l, r) (1)
#define lockdep_assert_held(l) do { (void)(l); } while (0)
-#define lockdep_assert_held_exclusive(l) do { (void)(l); } while (0)
+#define lockdep_assert_held_write(l) do { (void)(l); } while (0)
#define lockdep_assert_held_read(l) do { (void)(l); } while (0)
#define lockdep_assert_held_once(l) do { (void)(l); } while (0)
diff --git a/security/apparmor/label.c b/security/apparmor/label.c
index 068e93c..59f1cc2 100644
--- a/security/apparmor/label.c
+++ b/security/apparmor/label.c
@@ -76,7 +76,7 @@
AA_BUG(!orig);
AA_BUG(!new);
- lockdep_assert_held_exclusive(&labels_set(orig)->lock);
+ lockdep_assert_held_write(&labels_set(orig)->lock);
tmp = rcu_dereference_protected(orig->proxy->label,
&labels_ns(orig)->lock);
@@ -566,7 +566,7 @@
AA_BUG(!ls);
AA_BUG(!label);
- lockdep_assert_held_exclusive(&ls->lock);
+ lockdep_assert_held_write(&ls->lock);
if (new)
__aa_proxy_redirect(label, new);
@@ -603,7 +603,7 @@
AA_BUG(!ls);
AA_BUG(!old);
AA_BUG(!new);
- lockdep_assert_held_exclusive(&ls->lock);
+ lockdep_assert_held_write(&ls->lock);
AA_BUG(new->flags & FLAG_IN_TREE);
if (!label_is_stale(old))
@@ -640,7 +640,7 @@
AA_BUG(!ls);
AA_BUG(!label);
AA_BUG(labels_set(label) != ls);
- lockdep_assert_held_exclusive(&ls->lock);
+ lockdep_assert_held_write(&ls->lock);
AA_BUG(label->flags & FLAG_IN_TREE);
/* Figure out where to put new node */
