diff options
| -rw-r--r-- | drivers/android/binder_alloc.c | 44 |
1 files changed, 11 insertions, 33 deletions
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c index 60c829506d31..c3fc90966867 100644 --- a/drivers/android/binder_alloc.c +++ b/drivers/android/binder_alloc.c @@ -636,48 +636,26 @@ static unsigned long prev_buffer_end_page(struct binder_buffer *buffer) static void binder_delete_free_buffer(struct binder_alloc *alloc, struct binder_buffer *buffer) { - struct binder_buffer *prev, *next = NULL; - bool to_free = true; + struct binder_buffer *prev, *next; + + if (PAGE_ALIGNED(buffer->user_data)) + goto skip_freelist; BUG_ON(alloc->buffers.next == &buffer->entry); prev = binder_buffer_prev(buffer); BUG_ON(!prev->free); - if (prev_buffer_end_page(prev) == buffer_start_page(buffer)) { - to_free = false; - binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC, - "%d: merge free, buffer %lx share page with %lx\n", - alloc->pid, buffer->user_data, - prev->user_data); - } + if (prev_buffer_end_page(prev) == buffer_start_page(buffer)) + goto skip_freelist; if (!list_is_last(&buffer->entry, &alloc->buffers)) { next = binder_buffer_next(buffer); - if (buffer_start_page(next) == buffer_start_page(buffer)) { - to_free = false; - binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC, - "%d: merge free, buffer %lx share page with %lx\n", - alloc->pid, - buffer->user_data, - next->user_data); - } + if (buffer_start_page(next) == buffer_start_page(buffer)) + goto skip_freelist; } - if (PAGE_ALIGNED(buffer->user_data)) { - binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC, - "%d: merge free, buffer start %lx is page aligned\n", - alloc->pid, buffer->user_data); - to_free = false; - } - - if (to_free) { - binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC, - "%d: merge free, buffer %lx do not share page with %lx or %lx\n", - alloc->pid, buffer->user_data, - prev->user_data, - next ? next->user_data : 0); - binder_lru_freelist_add(alloc, buffer_start_page(buffer), - buffer_start_page(buffer) + PAGE_SIZE); - } + binder_lru_freelist_add(alloc, buffer_start_page(buffer), + buffer_start_page(buffer) + PAGE_SIZE); +skip_freelist: list_del(&buffer->entry); kfree(buffer); } |