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[PATCH v2 0/2] Add two SEEK_DATA/SEEK_HOLE tests

To: xfs@xxxxxxxxxxx
Subject: [PATCH v2 0/2] Add two SEEK_DATA/SEEK_HOLE tests
From: Jeff Liu <jeff.liu@xxxxxxxxxx>
Date: Mon, 06 Feb 2012 22:30:14 +0800
Cc: Mark Tinguely <tinguely@xxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>
Organization: Oracle
Reply-to: jeff.liu@xxxxxxxxxx
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20110617 Thunderbird/3.1.11

This patch series add two tests to verify SEEK_DATA/SEEK_HOLE feature works 
fine on supported
file systems(Btrfs/OCFS2) and XFS which is in progress.

V2 changes in seek_sanity_tester:
* change test index number from 276 to 279 since I observed that 276~278 have 
already been used by other tests.

v2 changes in seek_copy_tester:
* change test index number to 280 accordingly.
* s/do_pwrite/full_pwrite/
* add more debug info when writing ZERO byte to dest file.
* fix a bug at create_data_and_holes() to avoid write more bytes exceeding 
total file size, thank Mark. :)
* mark all function as static, maybe it's better to consolidate some common 
functions at sanity check and copy tester to a lib file in future.


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