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| author | Sergey Senozhatsky <sergey.senozhatsky@gmail.com> | 2014-04-07 15:38:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-07 16:35:59 -0700 |
| commit | 90a7806ea9b9f7cb4751859cc2506e2d80e36ef1 (patch) | |
| tree | 412738a9c0df4c46c2346e9365456e357be900bd /mm/percpu.c | |
| parent | b7cccf8b4009bf74df61f3c9d86b95fabd807c11 (diff) | |
zram: use atomic64_t for all zram stats
This is a preparation patch for stats code duplication removal.
1) use atomic64_t for `pages_zero' and `pages_stored' zram stats.
2) `compr_size' and `pages_zero' struct zram_stats members did not
follow the existing device attr naming scheme: zram_stats.ATTR has
ATTR_show() function. rename them:
-- compr_size -> compr_data_size
-- pages_zero -> zero_pages
Minchan Kim's note:
If we really have trouble with atomic stat operation, we could
change it with percpu_counter so that it could solve atomic overhead and
unnecessary memory space by introducing unsigned long instead of 64bit
atomic_t.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/percpu.c')
0 files changed, 0 insertions, 0 deletions