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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-12-06 00:56:04 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-12-08 01:37:33 +0300 |
| commit | 2040fce83fe17763b07c97c1f691da2bb85e4135 (patch) | |
| tree | 6a66cbd00dbefb98febc214b849b235ec91d0131 /fs/f2fs/segment.h | |
| parent | f455c8a5f0a24090e99249eb7280012376adec2c (diff) | |
| download | linux-2040fce83fe17763b07c97c1f691da2bb85e4135.tar.xz | |
f2fs: detect wrong layout
Previous mkfs.f2fs allows small partition inappropriately, so f2fs should detect
that as well.
Refer this in f2fs-tools.
mkfs.f2fs: detect small partition by overprovision ratio and # of segments
Reported-and-Tested-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/segment.h')
| -rw-r--r-- | fs/f2fs/segment.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index 89ab4301ef02..9d44ce83acb2 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -18,6 +18,8 @@ #define DEF_RECLAIM_PREFREE_SEGMENTS 5 /* 5% over total segments */ #define DEF_MAX_RECLAIM_PREFREE_SEGMENTS 4096 /* 8GB in maximum */ +#define F2FS_MIN_SEGMENTS 9 /* SB + 2 (CP + SIT + NAT) + SSA + MAIN */ + /* L: Logical segment # in volume, R: Relative segment # in main area */ #define GET_L2R_SEGNO(free_i, segno) (segno - free_i->start_segno) #define GET_R2L_SEGNO(free_i, segno) (segno + free_i->start_segno) |