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dma-buf/sw-sync: Reduce irqsave/irqrestore from known context

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If we know the context under which we are called, then we can use the
simpler form of spin_lock_irq (saving the save/restore).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170629125930.821-4-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2017-06-29 13:59:27 +01:00
committed by Gustavo Padovan
parent 8f66d3aa17
commit a6aa8fca4d
2 changed files with 15 additions and 14 deletions
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14
drivers/dma-buf/sync_debug.c
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@@ -116,17 +116,16 @@ static void sync_print_fence(struct seq_file *s,
static void sync_print_obj(struct seq_file *s, struct sync_timeline *obj)
{
struct list_head *pos;
unsigned long flags;
seq_printf(s, "%s: %d\n", obj->name, obj->value);
spin_lock_irqsave(&obj->child_list_lock, flags);
spin_lock_irq(&obj->child_list_lock);
list_for_each(pos, &obj->child_list_head) {
struct sync_pt *pt =
container_of(pos, struct sync_pt, child_list);
sync_print_fence(s, &pt->base, false);
}
spin_unlock_irqrestore(&obj->child_list_lock, flags);
spin_unlock_irq(&obj->child_list_lock);
}
static void sync_print_sync_file(struct seq_file *s,
@@ -151,12 +150,11 @@ static void sync_print_sync_file(struct seq_file *s,
static int sync_debugfs_show(struct seq_file *s, void *unused)
{
unsigned long flags;
struct list_head *pos;
seq_puts(s, "objs:\n--------------\n");
spin_lock_irqsave(&sync_timeline_list_lock, flags);
spin_lock_irq(&sync_timeline_list_lock);
list_for_each(pos, &sync_timeline_list_head) {
struct sync_timeline *obj =
container_of(pos, struct sync_timeline,
@@ -165,11 +163,11 @@ static int sync_debugfs_show(struct seq_file *s, void *unused)
sync_print_obj(s, obj);
seq_putc(s, '\n');
}
spin_unlock_irqrestore(&sync_timeline_list_lock, flags);
spin_unlock_irq(&sync_timeline_list_lock);
seq_puts(s, "fences:\n--------------\n");
spin_lock_irqsave(&sync_file_list_lock, flags);
spin_lock_irq(&sync_file_list_lock);
list_for_each(pos, &sync_file_list_head) {
struct sync_file *sync_file =
container_of(pos, struct sync_file, sync_file_list);
@@ -177,7 +175,7 @@ static int sync_debugfs_show(struct seq_file *s, void *unused)
sync_print_sync_file(s, sync_file);
seq_putc(s, '\n');
}
spin_unlock_irqrestore(&sync_file_list_lock, flags);
spin_unlock_irq(&sync_file_list_lock);
return 0;
}