On 18/03/11 13:19, Pádraig Brady wrote:
> Bah humbug. Looks like there is no such issue.
> This actually seems like an issue in a coreutils test script,
> which made it seem like the SYNC done by `filefrag -vs` was ineffective.
Proposed fix attached.
My perl is still weak, so I won't apply until s
Eric Sandeen wrote:
...
> The testcase in coreutils should definitely remove the fdatasync
> hack, as that just makes the test pass without worrying about things
> in the real world. :) A better test suite might be to generate
> random holey / delalloc files and copy those around.
>
> We should w
On 3/18/11 8:48 AM, Chris Mason wrote:
...
> Btrfs before 2.6.38 may have real trouble though, even with the sync.
> We were returning overlapping ranges to you, so the destination would
> end up bigger than the original. This could be fixed in cp by making
> sure to never seek backwards based
Pádraig Brady wrote:
...
> OK thanks for the info. So:
>
> XFS may miss some extents for sparse files before 2.6.36
> BTRFS and EXT4 need a sync before fiemap() before 2.6.38
> BTRFS can return overlapping extents before 2.6.38
>
> It seems like we should at least detect overlapping extents in our:
On 18/03/11 13:48, Chris Mason wrote:
> Excerpts from Pádraig Brady's message of 2011-03-18 09:19:44 -0400:
>> On 18/03/11 12:04, Chris Mason wrote:
>>> Excerpts from Jim Meyering's message of 2011-03-18 07:52:43 -0400:
Pádraig Brady wrote:
>
> So am I right in thinking FIEMAP_FLAG_SYN
Excerpts from Pádraig Brady's message of 2011-03-18 09:19:44 -0400:
> On 18/03/11 12:04, Chris Mason wrote:
> > Excerpts from Jim Meyering's message of 2011-03-18 07:52:43 -0400:
> >> Pádraig Brady wrote:
> >>> I also now remember this discussion:
> >>> http://debbugs.gnu.org/cgi/bugreport.cgi?bug=
On 18/03/11 12:04, Chris Mason wrote:
> Excerpts from Jim Meyering's message of 2011-03-18 07:52:43 -0400:
>> Pádraig Brady wrote:
>>> On 17/03/11 23:00, Pádraig Brady wrote:
On 17/03/11 19:29, Mike Frysinger wrote:
> On Thursday, March 17, 2011 05:32:33 Pádraig Brady wrote:
>> This is
Excerpts from Jim Meyering's message of 2011-03-18 07:52:43 -0400:
> Pádraig Brady wrote:
> > On 17/03/11 23:00, Pádraig Brady wrote:
> >> On 17/03/11 19:29, Mike Frysinger wrote:
> >>> On Thursday, March 17, 2011 05:32:33 Pádraig Brady wrote:
> This is the kind of patch appropriate for a dist
Pádraig Brady wrote:
> On 17/03/11 23:00, Pádraig Brady wrote:
>> On 17/03/11 19:29, Mike Frysinger wrote:
>>> On Thursday, March 17, 2011 05:32:33 Pádraig Brady wrote:
This is the kind of patch appropriate for a distro,
as they may or may not have a fix backported to their kernel.
>>>
>>
On 17/03/11 23:00, Pádraig Brady wrote:
> On 17/03/11 19:29, Mike Frysinger wrote:
>> On Thursday, March 17, 2011 05:32:33 Pádraig Brady wrote:
>>> This is the kind of patch appropriate for a distro,
>>> as they may or may not have a fix backported to their kernel.
>>
>> Gentoo, being a source dist
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