diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/android/binder.c | 5 | ||||
| -rw-r--r-- | drivers/android/binder_alloc.c | 41 |
2 files changed, 29 insertions, 17 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c index 1cc2fa16af8b..d58763b6b009 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -70,6 +70,7 @@ #include <linux/pid_namespace.h> #include <linux/security.h> #include <linux/spinlock.h> +#include <linux/ratelimit.h> #include <uapi/linux/android/binder.h> @@ -163,13 +164,13 @@ module_param_call(stop_on_user_error, binder_set_stop_on_user_error, #define binder_debug(mask, x...) \ do { \ if (binder_debug_mask & mask) \ - pr_info(x); \ + pr_info_ratelimited(x); \ } while (0) #define binder_user_error(x...) \ do { \ if (binder_debug_mask & BINDER_DEBUG_USER_ERROR) \ - pr_info(x); \ + pr_info_ratelimited(x); \ if (binder_stop_on_user_error) \ binder_stop_on_user_error = 2; \ } while (0) diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c index 2c258dcf9d72..3f3b7b253445 100644 --- a/drivers/android/binder_alloc.c +++ b/drivers/android/binder_alloc.c @@ -27,6 +27,7 @@ #include <linux/slab.h> #include <linux/sched.h> #include <linux/list_lru.h> +#include <linux/ratelimit.h> #include <asm/cacheflush.h> #include "binder_alloc.h" #include "binder_trace.h" @@ -36,11 +37,12 @@ struct list_lru binder_alloc_lru; static DEFINE_MUTEX(binder_alloc_mmap_lock); enum { + BINDER_DEBUG_USER_ERROR = 1U << 0, BINDER_DEBUG_OPEN_CLOSE = 1U << 1, BINDER_DEBUG_BUFFER_ALLOC = 1U << 2, BINDER_DEBUG_BUFFER_ALLOC_ASYNC = 1U << 3, }; -static uint32_t binder_alloc_debug_mask; +static uint32_t binder_alloc_debug_mask = BINDER_DEBUG_USER_ERROR; module_param_named(debug_mask, binder_alloc_debug_mask, uint, 0644); @@ -48,7 +50,7 @@ module_param_named(debug_mask, binder_alloc_debug_mask, #define binder_alloc_debug(mask, x...) \ do { \ if (binder_alloc_debug_mask & mask) \ - pr_info(x); \ + pr_info_ratelimited(x); \ } while (0) static struct binder_buffer *binder_buffer_next(struct binder_buffer *buffer) @@ -152,8 +154,10 @@ static struct binder_buffer *binder_alloc_prepare_to_free_locked( * free the buffer twice */ if (buffer->free_in_progress) { - pr_err("%d:%d FREE_BUFFER u%016llx user freed buffer twice\n", - alloc->pid, current->pid, (u64)user_ptr); + binder_alloc_debug(BINDER_DEBUG_USER_ERROR, + "%d:%d FREE_BUFFER u%016llx user freed buffer twice\n", + alloc->pid, current->pid, + (u64)user_ptr); return NULL; } buffer->free_in_progress = 1; @@ -224,8 +228,9 @@ static int binder_update_page_range(struct binder_alloc *alloc, int allocate, } if (!vma && need_mm) { - pr_err("%d: binder_alloc_buf failed to map pages in userspace, no vma\n", - alloc->pid); + binder_alloc_debug(BINDER_DEBUG_USER_ERROR, + "%d: binder_alloc_buf failed to map pages in userspace, no vma\n", + alloc->pid); goto err_no_vma; } @@ -344,8 +349,9 @@ static struct binder_buffer *binder_alloc_new_buf_locked( int ret; if (alloc->vma == NULL) { - pr_err("%d: binder_alloc_buf, no vma\n", - alloc->pid); + binder_alloc_debug(BINDER_DEBUG_USER_ERROR, + "%d: binder_alloc_buf, no vma\n", + alloc->pid); return ERR_PTR(-ESRCH); } @@ -417,11 +423,14 @@ static struct binder_buffer *binder_alloc_new_buf_locked( if (buffer_size > largest_free_size) largest_free_size = buffer_size; } - pr_err("%d: binder_alloc_buf size %zd failed, no address space\n", - alloc->pid, size); - pr_err("allocated: %zd (num: %zd largest: %zd), free: %zd (num: %zd largest: %zd)\n", - total_alloc_size, allocated_buffers, largest_alloc_size, - total_free_size, free_buffers, largest_free_size); + binder_alloc_debug(BINDER_DEBUG_USER_ERROR, + "%d: binder_alloc_buf size %zd failed, no address space\n", + alloc->pid, size); + binder_alloc_debug(BINDER_DEBUG_USER_ERROR, + "allocated: %zd (num: %zd largest: %zd), free: %zd (num: %zd largest: %zd)\n", + total_alloc_size, allocated_buffers, + largest_alloc_size, total_free_size, + free_buffers, largest_free_size); return ERR_PTR(-ENOSPC); } if (n == NULL) { @@ -731,8 +740,10 @@ err_alloc_pages_failed: err_get_vm_area_failed: err_already_mapped: mutex_unlock(&binder_alloc_mmap_lock); - pr_err("%s: %d %lx-%lx %s failed %d\n", __func__, - alloc->pid, vma->vm_start, vma->vm_end, failure_string, ret); + binder_alloc_debug(BINDER_DEBUG_USER_ERROR, + "%s: %d %lx-%lx %s failed %d\n", __func__, + alloc->pid, vma->vm_start, vma->vm_end, + failure_string, ret); return ret; } |