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| author | Christopher Haster <chaster@utexas.edu> | 2019-01-30 06:53:56 +0300 |
|---|---|---|
| committer | Christopher Haster <chaster@utexas.edu> | 2019-01-30 07:43:19 +0300 |
| commit | 95c1a6339ddd9e0dbbc19bf0be0c37f629af2b5d (patch) | |
| tree | 448e93c20db940dc7485bd23f4108a804b003bb4 /emubd | |
| parent | 173c21215159236b2d93caf2856636d29680ef79 (diff) | |
Fixed corner case in block_cycles eviction logic
The problem was when we allocate a dir-pair, it's possible for the
revision count to immediately overflow and the dir-pair be evicted and
returned to the unused blocks without being written even once. In the
case that block_cycles = 1, this made it impossible to ever create a
dir-pair, even in lfs_format.
I've also added a bit of logic to lfs_dir_alloc that will prevent
any immediate evictions because of the revision count.
found by TheLoneWolfling
Diffstat (limited to 'emubd')
0 files changed, 0 insertions, 0 deletions