fallocate can allocate extens beyond EOF via FALLOC_FL_KEEP_SIZE.
Currenly sparse engine tries to copy such extents which is wrong and
result in silent data corruption (leave file with incorrect size).
##TESTCASE
echo blabla > sparse_falloc.in
truncate -s 2M sparse_falloc.in
fallocate -n -o 4M -l
On 30/10/15 09:02, Dmitry Monakhov wrote:
> fallocate can allocate extens beyond EOF via FALLOC_FL_KEEP_SIZE.
> Currenly sparse engine tries to copy such extents which is wrong and
> result in silent data corruption (leave file with incorrect size).
>
> ##TESTCASE
> echo blabla > sparse_falloc.in
On 30/10/15 16:57, Pádraig Brady wrote:
> On 30/10/15 09:02, Dmitry Monakhov wrote:
>> fallocate can allocate extens beyond EOF via FALLOC_FL_KEEP_SIZE.
>> Currenly sparse engine tries to copy such extents which is wrong and
>> result in silent data corruption (leave file with incorrect size).
>>
>
