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authorTodd Kjos <tkjos@android.com>2017-06-29 12:01:42 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-07-17 14:47:29 +0200
commit1cf29cf4295ad2dc2009b421702ba4197b85acfd (patch)
tree48b77bbeabec0e903780833aa5d5c2a24c6c8a24 /drivers/android
parent0c972a05cde66e3d448419c120627083d6419f8f (diff)
downloadop-kernel-dev-1cf29cf4295ad2dc2009b421702ba4197b85acfd.zip
op-kernel-dev-1cf29cf4295ad2dc2009b421702ba4197b85acfd.tar.gz
binder: remove binder_debug_no_lock mechanism
With the global lock, there was a mechanism to access binder driver debugging information with the global lock disabled to debug deadlocks or other issues. This mechanism is rarely (if ever) used anymore and wasn't needed during the development of fine-grained locking in the binder driver. Removing it. Signed-off-by: Todd Kjos <tkjos@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/android')
-rw-r--r--drivers/android/binder.c31
1 files changed, 8 insertions, 23 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 0512971..10fda7a 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -107,9 +107,6 @@ static uint32_t binder_debug_mask = BINDER_DEBUG_USER_ERROR |
BINDER_DEBUG_FAILED_TRANSACTION | BINDER_DEBUG_DEAD_TRANSACTION;
module_param_named(debug_mask, binder_debug_mask, uint, S_IWUSR | S_IRUGO);
-static bool binder_debug_no_lock;
-module_param_named(proc_no_lock, binder_debug_no_lock, bool, S_IWUSR | S_IRUGO);
-
static char *binder_devices_param = CONFIG_ANDROID_BINDER_DEVICES;
module_param_named(devices, binder_devices_param, charp, 0444);
@@ -3507,10 +3504,8 @@ static int binder_state_show(struct seq_file *m, void *unused)
{
struct binder_proc *proc;
struct binder_node *node;
- int do_lock = !binder_debug_no_lock;
- if (do_lock)
- binder_lock(__func__);
+ binder_lock(__func__);
seq_puts(m, "binder state:\n");
@@ -3521,18 +3516,15 @@ static int binder_state_show(struct seq_file *m, void *unused)
hlist_for_each_entry(proc, &binder_procs, proc_node)
print_binder_proc(m, proc, 1);
- if (do_lock)
- binder_unlock(__func__);
+ binder_unlock(__func__);
return 0;
}
static int binder_stats_show(struct seq_file *m, void *unused)
{
struct binder_proc *proc;
- int do_lock = !binder_debug_no_lock;
- if (do_lock)
- binder_lock(__func__);
+ binder_lock(__func__);
seq_puts(m, "binder stats:\n");
@@ -3540,24 +3532,20 @@ static int binder_stats_show(struct seq_file *m, void *unused)
hlist_for_each_entry(proc, &binder_procs, proc_node)
print_binder_proc_stats(m, proc);
- if (do_lock)
- binder_unlock(__func__);
+ binder_unlock(__func__);
return 0;
}
static int binder_transactions_show(struct seq_file *m, void *unused)
{
struct binder_proc *proc;
- int do_lock = !binder_debug_no_lock;
- if (do_lock)
- binder_lock(__func__);
+ binder_lock(__func__);
seq_puts(m, "binder transactions:\n");
hlist_for_each_entry(proc, &binder_procs, proc_node)
print_binder_proc(m, proc, 0);
- if (do_lock)
- binder_unlock(__func__);
+ binder_unlock(__func__);
return 0;
}
@@ -3565,10 +3553,8 @@ static int binder_proc_show(struct seq_file *m, void *unused)
{
struct binder_proc *itr;
int pid = (unsigned long)m->private;
- int do_lock = !binder_debug_no_lock;
- if (do_lock)
- binder_lock(__func__);
+ binder_lock(__func__);
hlist_for_each_entry(itr, &binder_procs, proc_node) {
if (itr->pid == pid) {
@@ -3576,8 +3562,7 @@ static int binder_proc_show(struct seq_file *m, void *unused)
print_binder_proc(m, itr, 1);
}
}
- if (do_lock)
- binder_unlock(__func__);
+ binder_unlock(__func__);
return 0;
}
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