On 2025-08-22 19:11, Phillip Lougher wrote:
any Squashfs SEEK_HOLE/SEEK_DATA implementation will not behave like other Linux filesystems, because it won't report sparseness at the 4K granularity that most people or programs will expect it to.
Coreutils doesn't expect 4 KiB granularity for LSEEK_DATA+LSEEK_HOLE, and I don't know of any programs that do expect it. I fail to see why squashfs should penalize the performance of core programs like 'cp' merely because some (which?) programs are poorly written.
