[PATCH 1/8] Filter xfs_io's output in units of page size

[Chandan Rajendra <chandan@linux.vnet.ibm.com>]

The helpers introduced in this commit will be used to make btrfs tests that
assume 4k as the page size to work on non-4k page-sized systems as well.

Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
---
 common/filter | 8 ++++++++
 common/rc     | 6 ++++++
 2 files changed, 14 insertions(+)

diff --git a/common/filter b/common/filter
index 05f2fab..1be377c 100644
--- a/common/filter
+++ b/common/filter
@@ -261,6 +261,14 @@ _filter_xfs_io_blocks_modified()
 	_filter_xfs_io_units_modified "Block" $BLOCK_SIZE
 }
 
+_filter_xfs_io_pages_modified()
+{
+	PAGE_SIZE=$(get_page_size)
+
+	_filter_xfs_io_units_modified "Page" $PAGE_SIZE
+}
+
+
 _filter_test_dir()
 {
 	sed -e "s,$TEST_DEV,TEST_DEV,g" -e "s,$TEST_DIR,TEST_DIR,g"
diff --git a/common/rc b/common/rc
index 4c2f42c..82c1bbb 100644
--- a/common/rc
+++ b/common/rc
@@ -3151,6 +3151,12 @@ get_block_size()
 	echo `stat -f -c %S $1`
 }
 
+get_page_size()
+{
+	echo $(getconf PAGE_SIZE)
+}
+
+
 init_rc
 
 ################################################################################
-- 
2.1.0