diff options
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/zram/zram_drv.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c index 72fbf05f169..6063c11375a 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -32,6 +32,7 @@ #include <linux/lzo.h> #include <linux/string.h> #include <linux/vmalloc.h> +#include <linux/ratelimit.h> #include "zram_drv.h" @@ -39,6 +40,12 @@ static int zram_major; static struct zram *zram_devices; +/* + * We don't need to see memory allocation errors more than once every 1 + * second to know that a problem is occurring. + */ +#define ALLOC_ERROR_LOG_RATE_MS 1000 + /* Module params (documentation at end) */ static unsigned int num_devices = 1; @@ -400,6 +407,7 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index, struct page *page; unsigned char *user_mem, *cmem, *src, *uncmem = NULL; struct zram_meta *meta = zram->meta; + static unsigned long zram_rs_time; page = bvec->bv_page; src = meta->compress_buffer; @@ -473,8 +481,10 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index, handle = zs_malloc(meta->mem_pool, clen); if (!handle) { - pr_info("Error allocating memory for compressed page: %u, size=%zu\n", - index, clen); + if (printk_timed_ratelimit(&zram_rs_time, + ALLOC_ERROR_LOG_RATE_MS)) + pr_info("Error allocating memory for compressed page: %u, size=%zu\n", + index, clen); ret = -ENOMEM; goto out; } |