From: Allison Henderson <achender@linux.vnet.ibm.com>
Date: Wed, 25 May 2011 11:41:32 +0000 (-0400)
Subject: ext4: add new function ext4_block_zero_page_range()
X-Git-Tag: v3.0-rc1~140^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=308488518dfcbe3be250085cd582f5b0c1ce72a9;p=pandora-kernel.git

ext4: add new function ext4_block_zero_page_range()

This patch modifies the existing ext4_block_truncate_page() function
which was used by the truncate code path, and which zeroes out block
unaligned data, by adding a new length parameter, and renames it to
ext4_block_zero_page_rage().  This function can now be used to zero out the
head of a block, the tail of a block, or the middle
of a block.

The ext4_block_truncate_page() function is now a wrapper to
ext4_block_zero_page_range().

[ext4 punch hole patch series 2/5 v7]

Signed-off-by: Allison Henderson <achender@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Mingming Cao <cmm@us.ibm.com>
---

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