Messages in this thread | | | From | Minchan Kim <> | Subject | [PATCH 0/5] zram clean up | Date | Mon, 3 Apr 2017 14:17:28 +0900 |
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This patchset aims zram clean-up.
[1] clean up multiple pages's bvec handling. [2] clean up partial IO handling [3-5] clean up zram via using accessor and removing pointless structure.
With [2-5] applied, we can get a few hundred bytes as well as huge readibility enhance.
This patchset is based on v4.11-rc4-mmotm-2017-03-30-16-31 and *drop* zram-factor-out-partial-io-routine.patch.
x86: 708 byte save
add/remove: 1/1 grow/shrink: 0/11 up/down: 478/-1186 (-708) function old new delta zram_special_page_read - 478 +478 zram_reset_device 317 314 -3 mem_used_max_store 131 128 -3 compact_store 96 93 -3 mm_stat_show 203 197 -6 zram_add 719 712 -7 zram_slot_free_notify 229 214 -15 zram_make_request 819 803 -16 zram_meta_free 128 111 -17 zram_free_page 180 151 -29 disksize_store 432 361 -71 zram_decompress_page.isra 504 - -504 zram_bvec_rw 2592 2080 -512 Total: Before=25350773, After=25350065, chg -0.00%
ppc64: 231 byte save
add/remove: 2/0 grow/shrink: 1/9 up/down: 681/-912 (-231) function old new delta zram_special_page_read - 480 +480 zram_slot_lock - 200 +200 vermagic 39 40 +1 mm_stat_show 256 248 -8 zram_meta_free 200 184 -16 zram_add 944 912 -32 zram_free_page 348 308 -40 disksize_store 572 492 -80 zram_decompress_page 664 564 -100 zram_slot_free_notify 292 160 -132 zram_make_request 1132 1000 -132 zram_bvec_rw 2768 2396 -372 Total: Before=17565825, After=17565594, chg -0.00%
Minchan Kim (5): [1] zram: handle multiple pages attached bio's bvec [2] zram: partial IO refactoring [3] zram: use zram_slot_lock instead of raw bit_spin_lock op [4] zram: remove zram_meta structure [5] zram: introduce zram data accessor
drivers/block/zram/zram_drv.c | 532 +++++++++++++++++++++--------------------- drivers/block/zram/zram_drv.h | 6 +- 2 files changed, 270 insertions(+), 268 deletions(-)
-- 2.7.4
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