| Message ID | 1412764522-15754-2-git-send-email-wangshilong1991@gmail.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
On Wed, Oct 08, 2014 at 06:35:22AM -0400, Wang Shilong wrote: > Signed-off-by: Wang Shilong <wangshilong1991@gmail.com> > --- > i didn't find a way to remove filefrag here, but let us > use macro firstly... YOu shoul dbe able to use fiemap to calculate the same output. i.e. _check_file_extents() outputs a strings of the format #physical#length#logical#flags and this is then cut up later later by the test. fiemap outputs the same information, it just requires slightly different processing via the _filter_extents function to munge it into the same format... Cheers, Dave.
Cc list > On Wed, Oct 08, 2014 at 06:35:22AM -0400, Wang Shilong wrote: >>> Signed-off-by: Wang Shilong <wangshilong1991@gmail.com> >>> --- >>> i didn't find a way to remove filefrag here, but let us >>> use macro firstly... >> >> YOu shoul dbe able to use fiemap to calculate the same output. >> i.e. _check_file_extents() outputs a strings of the format >> #physical#length#logical#flags and this is then cut up later >> later by the test. fiemap outputs the same information, >> it just requires slightly different processing via the >> _filter_extents function to munge it into the same format… > > I supposed there are some differences between fiemap and filefrag: > > [root@vm01 mnt]# filefrag -v data > Filesystem type is: 9123683e > File size of data is 1024 (1 block of 4096 bytes) > ext: logical_offset: physical_offset: length: expected: flags: > 0: 0.. 4095: 0.. 4095: 4096: not_aligned,inline,eof > data: 1 extent found > > [root@vm01 mnt]# xfs_io -c fiemap data > data: > 0: [0..7]: 0..7 > > Hm…. > > >> >> Cheers, >> >> Dave. >> -- >> Dave Chinner >> david@fromorbit.com > > Best Regards, > Wang Shilong > Best Regards, Wang Shilong -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Wed, Oct 08, 2014 at 01:31:24PM +0800, Wang Shilong wrote: > Cc list > > > On Wed, Oct 08, 2014 at 06:35:22AM -0400, Wang Shilong wrote: > >>> Signed-off-by: Wang Shilong <wangshilong1991@gmail.com> > >>> --- > >>> i didn't find a way to remove filefrag here, but let us > >>> use macro firstly... > >> > >> YOu shoul dbe able to use fiemap to calculate the same output. > >> i.e. _check_file_extents() outputs a strings of the format > >> #physical#length#logical#flags and this is then cut up later > >> later by the test. fiemap outputs the same information, > >> it just requires slightly different processing via the > >> _filter_extents function to munge it into the same format… > > > > I supposed there are some differences between fiemap and filefrag: > > > > [root@vm01 mnt]# filefrag -v data > > Filesystem type is: 9123683e > > File size of data is 1024 (1 block of 4096 bytes) > > ext: logical_offset: physical_offset: length: expected: flags: > > 0: 0.. 4095: 0.. 4095: 4096: not_aligned,inline,eof > > data: 1 extent found > > > > [root@vm01 mnt]# xfs_io -c fiemap data > > data: > > 0: [0..7]: 0..7 Of course. Units, for one: the output of filefrag is in bytes, while fiemap is in 512 byte blocks. And fiemap needs the "-v" option to output the flag state. Same information, different presentation. Cheers, Dave.
diff --git a/tests/btrfs/004 b/tests/btrfs/004 index 1d5b816..1f59963 100755 --- a/tests/btrfs/004 +++ b/tests/btrfs/004 @@ -53,7 +53,6 @@ _supported_os Linux _require_scratch _require_no_large_scratch_dev _require_btrfs inspect-internal -_require_command "/usr/sbin/filefrag" rm -f $seqres.full @@ -82,7 +81,7 @@ _filter_extents() _check_file_extents() { - cmd="filefrag -v $1" + cmd="$FILEFRAG_PROG -v $1" echo "# $cmd" >> $seqres.full out=`$cmd | _filter_extents` if [ -z "$out" ]; then
Signed-off-by: Wang Shilong <wangshilong1991@gmail.com> --- i didn't find a way to remove filefrag here, but let us use macro firstly... --- tests/btrfs/004 | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)