On 08/23/13 08:34, Eric Sandeen wrote:
On Aug 23, 2013, at 8:26 AM, Mark Tinguely<tinguely@xxxxxxx> wrote:
On 08/22/13 17:45, Eric Sandeen wrote:
On 8/22/13 4:31 PM, Mark Tinguely wrote:
Add the lseek SEEK_DATA/SEEK_HOLE support into xfs_io.
The result from the lseek() call will be printed to the output.
For example:
xfs_io> seek -h 609k
HOLE 630784
Signed-off-by: Mark Tinguely<tinguely@xxxxxxx>
---
version 7 or 8 - Eric what number is this?
Go for 13, for luck!
I think this looks ok, I won't torture you any longer. If there's anything
to fix up when it really gets used in earnest we can do it then.
(it crossed my mind that for the "-r" and "-a" invocations it might be good to print
out the offset which was sent for each SEEK_* "whence," but *shrug*)
Thanks for all the iterations,
Reviewed-by: Eric Sandeen<sandeen@xxxxxxxxxx>
Rich, hold off on commit, I can quickly add the whence. We can see how she sails.
Was just an idle thought... See if it makes sense I guess...
Thanks,
Eric
without whence:
xfs_io> seek -ar 0
HOLE 0
DATA 528384
HOLE 532480
DATA 819200
HOLE 823296
xfs_io> seek -dh 512k
HOLE 524288
DATA 528384
xfs_io> seek -rd 0
DATA 528384
DATA 819200
============
after with whence:
xfs_io> seek -ar 0:
HOLE 0 0
DATA 0 528384
HOLE 528384 532480
DATA 532480 819200
HOLE 819200 823296
xfs_io> seek -dh 512k:
HOLE 524288
DATA 528384
xfs_io> seek -rd 0
DATA 0 528384
DATA 532480 819200
Seems to make most sense in the case of -rd and -rh
--Mark.
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