Messages in this thread | | | From | Zhen Lei <> | Subject | [PATCH 0/4] eliminate SECTOR related magic numbers and duplicated conversions | Date | Tue, 5 May 2020 19:55:39 +0800 |
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When I studied the code of mm/swap, I found "1 << (PAGE_SHIFT - 9)" appears many times. So I try to clean up it.
1. Replace "1 << (PAGE_SHIFT - 9)" or similar with SECTORS_PER_PAGE 2. Replace "PAGE_SHIFT - 9" with SECTORS_PER_PAGE_SHIFT 3. Replace "9" with SECTOR_SHIFT 4. Replace "512" with SECTOR_SIZE
No functional change.
Zhen Lei (4): block: Move SECTORS_PER_PAGE and SECTORS_PER_PAGE_SHIFT definitions into <linux/blkdev.h> mm/swap: use SECTORS_PER_PAGE_SHIFT to clean up code block: use SECTORS_PER_PAGE_SHIFT and SECTORS_PER_PAGE to clean up code mtd: eliminate SECTOR related magic numbers
block/blk-settings.c | 8 ++++---- block/partitions/core.c | 4 ++-- drivers/block/zram/zram_drv.h | 2 -- drivers/md/dm-table.c | 2 +- drivers/md/raid1.c | 4 ++-- drivers/md/raid10.c | 10 +++++----- drivers/md/raid5-cache.c | 10 +++++----- include/linux/blkdev.h | 10 ++++++++-- mm/page_io.c | 4 ++-- mm/swapfile.c | 12 ++++++------ 10 files changed, 35 insertions(+), 31 deletions(-)
-- 2.26.0.106.g9fadedd
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