On Mon, Sep 14, 2009 at 05:17:30PM +0900, Akira Fujita wrote: > ext4: Fix different block exchange issue in EXT4_IOC_MOVE_EXT > > From: Akira Fujita <a-fujita@xxxxxxxxxxxxx> > > If logical block offset of original file which is passed to > EXT4_IOC_MOVE_EXT is different from donor file's, > a calculation error occurs in ext4_calc_swap_extents(), > therefore wrong block is exchanged between original file and donor file. > As a result, we hit ext4_error() in check_block_validity(). > To detect the logical offset difference in EXT4_IOC_MOVE_EXT, > add checks to mext_calc_swap_extents() and handle it as error, > since data exchange must be done between the same blocks in EXT4_IOC_MOVE_EXT. > > Reported-by: Peng Tao <bergwolf@xxxxxxxxx> > Signed-off-by: Akira Fujita <a-fujita@xxxxxxxxxxxxx> Applied, thanks. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
