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| author | Mark Brown <broonie@linaro.org> | 2013-12-30 13:45:00 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-12-30 13:45:00 +0000 |
| commit | 68e67d97e1f91ed11e041b67f3a1336f518c608f (patch) | |
| tree | 1de288bc05f1cf1bfec20200a60ffe99dcce77ae /drivers/md/persistent-data/dm-array.c | |
| parent | 9e03d05eee4ca45ed12749ef6c26bf616262cdd2 (diff) | |
| parent | 802eee95bde72fd0cd0f3a5b2098375a487d1eda (diff) | |
Merge tag 'v3.13-rc6' into spi-rcar
To resolve spurious merge conflicts with fixes.
Linux 3.13-rc6
Diffstat (limited to 'drivers/md/persistent-data/dm-array.c')
| -rw-r--r-- | drivers/md/persistent-data/dm-array.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/md/persistent-data/dm-array.c b/drivers/md/persistent-data/dm-array.c index af96e24ec32..1d75b1dc1e2 100644 --- a/drivers/md/persistent-data/dm-array.c +++ b/drivers/md/persistent-data/dm-array.c @@ -317,8 +317,16 @@ static int shadow_ablock(struct dm_array_info *info, dm_block_t *root, * The shadow op will often be a noop. Only insert if it really * copied data. */ - if (dm_block_location(*block) != b) + if (dm_block_location(*block) != b) { + /* + * dm_tm_shadow_block will have already decremented the old + * block, but it is still referenced by the btree. We + * increment to stop the insert decrementing it below zero + * when overwriting the old value. + */ + dm_tm_inc(info->btree_info.tm, b); r = insert_ablock(info, index, *block, root); + } return r; } |