diff options
| -rw-r--r-- | Documentation/admin-guide/blockdev/zram.rst | 1 | ||||
| -rw-r--r-- | drivers/block/zram/zram_drv.c | 6 | ||||
| -rw-r--r-- | drivers/block/zram/zram_drv.h | 1 |
3 files changed, 6 insertions, 2 deletions
diff --git a/Documentation/admin-guide/blockdev/zram.rst b/Documentation/admin-guide/blockdev/zram.rst index 8f3cfa42e443..03f1105b21b7 100644 --- a/Documentation/admin-guide/blockdev/zram.rst +++ b/Documentation/admin-guide/blockdev/zram.rst @@ -266,6 +266,7 @@ line of text and contains the following stats separated by whitespace: No memory is allocated for such pages. pages_compacted the number of pages freed during compaction huge_pages the number of incompressible pages + huge_pages_since the number of incompressible pages since zram set up ================ ============================================================= File /sys/block/zram<id>/bd_stat diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index 9a1e6ee4dbef..9481fa9eedd0 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -1084,7 +1084,7 @@ static ssize_t mm_stat_show(struct device *dev, max_used = atomic_long_read(&zram->stats.max_used_pages); ret = scnprintf(buf, PAGE_SIZE, - "%8llu %8llu %8llu %8lu %8ld %8llu %8lu %8llu\n", + "%8llu %8llu %8llu %8lu %8ld %8llu %8lu %8llu %8llu\n", orig_size << PAGE_SHIFT, (u64)atomic64_read(&zram->stats.compr_data_size), mem_used << PAGE_SHIFT, @@ -1092,7 +1092,8 @@ static ssize_t mm_stat_show(struct device *dev, max_used << PAGE_SHIFT, (u64)atomic64_read(&zram->stats.same_pages), pool_stats.pages_compacted, - (u64)atomic64_read(&zram->stats.huge_pages)); + (u64)atomic64_read(&zram->stats.huge_pages), + (u64)atomic64_read(&zram->stats.huge_pages_since)); up_read(&zram->init_lock); return ret; @@ -1424,6 +1425,7 @@ out: if (comp_len == PAGE_SIZE) { zram_set_flag(zram, index, ZRAM_HUGE); atomic64_inc(&zram->stats.huge_pages); + atomic64_inc(&zram->stats.huge_pages_since); } if (flags) { diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h index f2fd46daa760..9cabcbb13fd9 100644 --- a/drivers/block/zram/zram_drv.h +++ b/drivers/block/zram/zram_drv.h @@ -78,6 +78,7 @@ struct zram_stats { atomic64_t notify_free; /* no. of swap slot free notifications */ atomic64_t same_pages; /* no. of same element filled pages */ atomic64_t huge_pages; /* no. of huge pages */ + atomic64_t huge_pages_since; /* no. of huge pages since zram set up */ atomic64_t pages_stored; /* no. of pages currently stored */ atomic_long_t max_used_pages; /* no. of maximum pages stored */ atomic64_t writestall; /* no. of write slow paths */ |