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Date: Fri, 06 Jan 2012 20:47:37 -0800 From: "Darrick J. Wong" <djwong@...ibm.com> To: Theodore Tso <tytso@....edu>, "Darrick J. Wong" <djwong@...ibm.com> Cc: linux-ext4@...r.kernel.org Subject: [PATCH] libext2fs: When truncating file, punch out blocks at end Currently, ext2fs_file_set_size2 punches out data blocks between the end of the file and infinity when truncate_block <= old_truncate (i.e. when you've made the file longer). This is not a useful behavior, particularly since it *fails* to punch out the data blocks when the file is shortened (i.e. truncate_block < old_truncate). This seems to be the result of the test being backwards, so fix the code to punch only when the file is getting shorter. Signed-off-by: Darrick J. Wong <djwong@...ibm.com> --- lib/ext2fs/fileio.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/lib/ext2fs/fileio.c b/lib/ext2fs/fileio.c index d56f5b5..8751635 100644 --- a/lib/ext2fs/fileio.c +++ b/lib/ext2fs/fileio.c @@ -389,7 +389,7 @@ errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size) return retval; } - if (truncate_block <= old_truncate) + if (truncate_block >= old_truncate) return 0; return ext2fs_punch(file->fs, file->ino, &file->inode, 0, -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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