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scoutfs: add SCOUTFS_BLOCK_MAX

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Add the max possible logical block / physical blkno number given u64
bytes recorded at block size granularity.

Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2018-06-29 14:42:06 -07:00
committed by Zach Brown
parent 55e063d2a1
commit 4fc554584a
1 changed files with 1 additions and 0 deletions
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kmod/src/format.h
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@@ -15,6 +15,7 @@
#define SCOUTFS_BLOCKS_PER_PAGE (PAGE_SIZE / SCOUTFS_BLOCK_SIZE)
#define SCOUTFS_BLOCK_SECTOR_SHIFT (SCOUTFS_BLOCK_SHIFT - 9)
#define SCOUTFS_BLOCK_SECTORS (1 << SCOUTFS_BLOCK_SECTOR_SHIFT)
#define SCOUTFS_BLOCK_MAX (U64_MAX >> SCOUTFS_BLOCK_SHIFT)
/*
* FS data is stored in segments, for now they're fixed size. They'll