diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-24 09:43:21 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-24 09:43:21 -0800 |
| commit | 5bd2010fbe027b224db2e74a4fdfec9a7b7918d2 (patch) | |
| tree | 59106aae3930a3608409c101ec32d68742c8d168 /drivers/md/persistent-data/dm-array.c | |
| parent | 41f107266b19d100c1bcef9e1e1aef00692c1209 (diff) | |
| parent | 413541dd66d51f791a0b169d9b9014e4f56be13c (diff) | |
| download | kernel_replicant_linux-5bd2010fbe027b224db2e74a4fdfec9a7b7918d2.tar.gz kernel_replicant_linux-5bd2010fbe027b224db2e74a4fdfec9a7b7918d2.tar.bz2 kernel_replicant_linux-5bd2010fbe027b224db2e74a4fdfec9a7b7918d2.zip | |
Merge 3.13-rc5 into staging-next
We want these fixes here to handle some merge issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 af96e24ec328..1d75b1dc1e2e 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; } |