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由 Allison Henderson 提交于
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: NAllison Henderson <achender@us.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu> Reviewed-by: NMingming Cao <cmm@us.ibm.com>
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