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Squashfs: fix f_pos check in get_dir_index_using_offset 

One off error in the f_pos check.  If f_pos is 3 or less don't
bother reading the index because we're at the start of the
directory, and we obviously already know where that is on disk.

This eliminates an unnecessary read.

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
This commit is contained in:
Phillip Lougher 2012-03-09 02:27:49 +00:00
parent 47f4396e51
commit 2158d3fd27
1 changed files with 1 additions and 1 deletions
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2
fs/squashfs/dir.c
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@ -64,7 +64,7 @@ static int get_dir_index_using_offset(struct super_block *sb,
* is offset by 3 because we invent "." and ".." entries which are
* not actually stored in the directory.
*/
if (f_pos < 3)
if (f_pos <= 3)
return f_pos;
f_pos -= 3;